home · contact · privacy
7DRL: Some population balancing.
[plomrogue] / roguelike-server
index ce44fa2da969c375e77440e34e0f5d66b5146a91..38da4a804a738967be8096acabd11bd1029d0666 100755 (executable)
@@ -12,6 +12,7 @@ import shlex
 import shutil
 import time
 import ctypes
+import math  # #
 
 
 class RandomnessIO:
@@ -39,6 +40,12 @@ def prep_library():
     return libpr
 
 
+def c_pointer_to_bytearray(ba):
+    """Return C char * pointer to ba."""
+    type = ctypes.c_char * len(ba)
+    return type.from_buffer(ba)
+
+
 def strong_write(file, string):
     """Apply write(string), then flush()."""
     file.write(string)
@@ -92,6 +99,11 @@ def cleanup_server_io():
         io_db["file_record"].close()
 
 
+def log(msg):
+    """Send "msg" to log."""
+    strong_write(io_db["file_out"], "LOG " + msg + "\n")
+
+
 def obey(command, prefix, replay=False, do_record=False):
     """Call function from commands_db mapped to command's first token.
 
@@ -103,7 +115,8 @@ def obey(command, prefix, replay=False, do_record=False):
     is called (and io_db["record_chunk"] written) if 15 seconds have passed
     since the last time it was called. The prefix string is inserted into the
     server's input message between its beginning 'input ' and ':'. All activity
-    is preceded by a server_test() call.
+    is preceded by a server_test() call. Commands that start with a lowercase
+    letter are ignored when world_db["WORLD_ACTIVE"] is False/0.
     """
     server_test()
     if io_db["verbose"]:
@@ -117,6 +130,8 @@ def obey(command, prefix, replay=False, do_record=False):
        and len(tokens) == commands_db[tokens[0]][0] + 1:
         if commands_db[tokens[0]][1]:
             commands_db[tokens[0]][2](*tokens[1:])
+        elif tokens[0][0].islower() and not world_db["WORLD_ACTIVE"]:
+            print("Ignoring lowercase-starting commands when world inactive.")
         elif replay:
             print("Due to replay mode, reading command as 'go on in record'.")
             line = io_db["file_record"].readline()
@@ -130,10 +145,11 @@ def obey(command, prefix, replay=False, do_record=False):
             commands_db[tokens[0]][2](*tokens[1:])
             if do_record:
                 io_db["record_chunk"] += command + "\n"
-                if time.time() > io_db["save_wait"] + 15:
+                if time.time() > io_db["save_wait"] + 300:
                     atomic_write(io_db["path_record"], io_db["record_chunk"],
                                  do_append=True)
-                    save_world()
+                    if world_db["WORLD_ACTIVE"]:
+                        save_world()
                     io_db["record_chunk"] = ""
                     io_db["save_wait"] = time.time()
             io_db["worldstate_updateable"] = world_db["WORLD_ACTIVE"]
@@ -165,10 +181,11 @@ def save_world():
         return '"' + string.replace('"', '\u005C"') + '"'
 
     def mapsetter(key):
-        def helper(id):
+        def helper(id=None):
             string = ""
-            if world_db["Things"][id][key]:
-                map = world_db["Things"][id][key]
+            if key == "MAP" or world_db["Things"][id][key]:
+                map = world_db["MAP"] if key == "MAP" \
+                                      else world_db["Things"][id][key]
                 length = world_db["MAP_LENGTH"]
                 for i in range(length):
                     line = map[i * length:(i * length) + length].decode()
@@ -199,10 +216,11 @@ def save_world():
 
     string = ""
     for key in world_db:
-        if dict != type(world_db[key]) and key != "MAP" and \
-           key != "WORLD_ACTIVE" and key != "SEED_MAP":
+        if (dict != type(world_db[key])
+            and key != "altar"  # #
+            and key != "MAP" and key != "WORLD_ACTIVE"):
             string = string + key + " " + str(world_db[key]) + "\n"
-    string = string + "SEED_MAP " + str(world_db["SEED_MAP"]) + "\n"
+    string = string + mapsetter("MAP")()
     string = string + helper("ThingActions", "TA_ID")
     string = string + helper("ThingTypes", "TT_ID", {"TT_CORPSE_ID": False})
     for id in world_db["ThingTypes"]:
@@ -295,21 +313,6 @@ def try_worldstate_update():
     """Write worldstate file if io_db["worldstate_updateable"] is set."""
     if io_db["worldstate_updateable"]:
 
-        def draw_visible_Things(map, run):
-            for id in world_db["Things"]:
-                type = world_db["Things"][id]["T_TYPE"]
-                consumable = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
-                alive = world_db["ThingTypes"][type]["TT_LIFEPOINTS"]
-                if (0 == run and not consumable and not alive) \
-                   or (1 == run and consumable and not alive) \
-                   or (2 == run and alive):
-                    y = world_db["Things"][id]["T_POSY"]
-                    x = world_db["Things"][id]["T_POSX"]
-                    fovflag = world_db["Things"][0]["fovmap"][(y * length) + x]
-                    if 'v' == chr(fovflag):
-                        c = world_db["ThingTypes"][type]["TT_SYMBOL"]
-                        map[(y * length) + x] = ord(c)
-
         def write_map(string, map):
             for i in range(length):
                 line = map[i * length:(i * length) + length].decode()
@@ -324,10 +327,9 @@ def try_worldstate_update():
                 type_id = world_db["Things"][id]["T_TYPE"]
                 name = world_db["ThingTypes"][type_id]["TT_NAME"]
                 inventory = inventory + name + "\n"
-        ## 7DRL additions:  GOD_MOOD, GOD_FAVOR
-        string = str(world_db["GOD_MOOD"]) + "\n" + \
+        # 7DRL additions: GOD_FAVOR
+        string = str(world_db["TURN"]) + "\n" + \
                  str(world_db["GOD_FAVOR"]) + "\n" + \
-                 str(world_db["TURN"]) + "\n" + \
                  str(world_db["Things"][0]["T_LIFEPOINTS"]) + "\n" + \
                  str(world_db["Things"][0]["T_SATIATION"]) + "\n" + \
                  inventory + "%\n" + \
@@ -335,21 +337,79 @@ def try_worldstate_update():
                  str(world_db["Things"][0]["T_POSX"]) + "\n" + \
                  str(world_db["MAP_LENGTH"]) + "\n"
         length = world_db["MAP_LENGTH"]
+
         fov = bytearray(b' ' * (length ** 2))
-        for pos in range(length ** 2):
-            if 'v' == chr(world_db["Things"][0]["fovmap"][pos]):
-                fov[pos] = world_db["MAP"][pos]
-        for i in range(3):
-            draw_visible_Things(fov, i)
+        ord_v = ord("v")
+        for pos in [pos for pos in range(length ** 2)
+                        if ord_v == world_db["Things"][0]["fovmap"][pos]]:
+            fov[pos] = world_db["MAP"][pos]
+        for id in [id for tid in reversed(sorted(list(world_db["ThingTypes"])))
+                      for id in world_db["Things"]
+                      if not world_db["Things"][id]["carried"]
+                      if world_db["Things"][id]["T_TYPE"] == tid
+                      if world_db["Things"][0]["fovmap"][
+                           world_db["Things"][id]["T_POSY"] * length
+                           + world_db["Things"][id]["T_POSX"]] == ord_v]:
+            type = world_db["Things"][id]["T_TYPE"]
+            c = ord(world_db["ThingTypes"][type]["TT_SYMBOL"])
+            fov[world_db["Things"][id]["T_POSY"] * length
+                + world_db["Things"][id]["T_POSX"]] = c
         string = write_map(string, fov)
+
         mem = world_db["Things"][0]["T_MEMMAP"][:]
-        for i in range(2):
-            for mt in world_db["Things"][0]["T_MEMTHING"]:
-                consumable = world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]
-                if (i == 0 and not consumable) or (i == 1 and consumable):
-                    c = world_db["ThingTypes"][mt[0]]["TT_SYMBOL"]
-                    mem[(mt[1] * length) + mt[2]] = ord(c)
+        for mt in [mt for tid in reversed(sorted(list(world_db["ThingTypes"])))
+                      for mt in world_db["Things"][0]["T_MEMTHING"]
+                      if mt[0] == tid]:
+             c = world_db["ThingTypes"][mt[0]]["TT_SYMBOL"]
+             mem[(mt[1] * length) + mt[2]] = ord(c)
         string = write_map(string, mem)
+
+        metamapA = bytearray(b'0' * (length ** 2))  # #
+        for id in [id for id in world_db["Things"]  # #
+                      if not world_db["Things"][id]["carried"]  # #
+                      if world_db["Things"][id]["T_LIFEPOINTS"]  # #
+                      if world_db["Things"][0]["fovmap"][  # #
+                           world_db["Things"][id]["T_POSY"] * length  # #
+                           + world_db["Things"][id]["T_POSX"]] == ord_v]:  # #
+            pos = (world_db["Things"][id]["T_POSY"] * length  # #
+                  + world_db["Things"][id]["T_POSX"])  # #
+            if id == 0 or world_db["EMPATHY"]:  # #
+                type = world_db["Things"][id]["T_TYPE"]  # #
+                max_hp = world_db["ThingTypes"][type]["TT_LIFEPOINTS"]  # #
+                third_of_hp = max_hp / 3  # #
+                hp = world_db["Things"][id]["T_LIFEPOINTS"]  # #
+                add = 0  # #
+                if hp > 2 * third_of_hp:  # #
+                     add = 2  # #
+                elif hp > third_of_hp:  # #
+                    add = 1  # #
+                metamapA[pos] = ord('a') + add # #
+            else:  # #
+                metamapA[pos] = ord('X')  # #
+        for mt in world_db["Things"][0]["T_MEMTHING"]:  # #
+            pos = mt[1] * length + mt[2]  # #
+            if metamapA[pos] < ord('2'):  # #
+                metamapA[pos] += 1  # #
+        string = write_map(string, metamapA)  # #
+        
+        metamapB = bytearray(b' ' * (length ** 2))  # #
+        for id in [id for id in world_db["Things"]  # #
+                      if not world_db["Things"][id]["carried"]  # #
+                      if world_db["Things"][id]["T_LIFEPOINTS"]  # #
+                      if world_db["Things"][0]["fovmap"][  # #
+                           world_db["Things"][id]["T_POSY"] * length  # #
+                           + world_db["Things"][id]["T_POSX"]] == ord_v]:  # #
+            pos = (world_db["Things"][id]["T_POSY"] * length  # #
+                  + world_db["Things"][id]["T_POSX"])  # #
+            if id == 0 or world_db["EMPATHY"]:  # #
+                action = world_db["Things"][id]["T_COMMAND"]  # #
+                if 0 != action:  # #
+                    name = world_db["ThingActions"][action]["TA_NAME"]  # #
+                else:  # #
+                    name = " "  # #
+                metamapB[pos] = ord(name[0]) # #
+        string = write_map(string, metamapB)  # #
+
         atomic_write(io_db["path_worldstate"], string, delete=False)
         strong_write(io_db["file_out"], "WORLD_UPDATED\n")
         io_db["worldstate_updateable"] = False
@@ -406,7 +466,7 @@ def play_game():
         obey(read_command(), "in file", do_record=True)
 
 
-def remake_map():
+def make_map():
     """(Re-)make island map.
 
     Let "~" represent water, "." land, "X" trees: Build island shape randomly,
@@ -415,6 +475,8 @@ def remake_map():
     to land. The cycle ends when a land cell is due to be created at the map's
     border. Then put some trees on the map (TODO: more precise algorithm desc).
     """
+    # 7DRL: Also add some ":" cells, and (not surrounded by trees!) "_" altar.
+
     def is_neighbor(coordinates, type):
         y = coordinates[0]
         x = coordinates[1]
@@ -437,8 +499,7 @@ def remake_map():
                and type == chr(world_db["MAP"][pos + length - (not ind)])):
             return True
         return False
-    store_seed = rand.seed
-    rand.seed = world_db["SEED_MAP"]
+
     world_db["MAP"] = bytearray(b'~' * (world_db["MAP_LENGTH"] ** 2))
     length = world_db["MAP_LENGTH"]
     add_half_width = (not (length % 2)) * int(length / 2)
@@ -462,41 +523,101 @@ def remake_map():
           and ((not single_allowed) or is_neighbor((y, x), "X")):
             world_db["MAP"][pos] = ord("X")
             i_trees += 1
-    rand.seed = store_seed
     # This all-too-precise replica of the original C code misses iter_limit().
+    n_colons = int((length ** 2) / 16)  # #
+    i_colons = 0  # #
+    while (i_colons <= n_colons):  # #
+        single_allowed = rand.next() % 256  # #
+        y = rand.next() % length  # #
+        x = rand.next() % length  # #
+        pos = (y * length) + x  # #
+        if ("." == chr(world_db["MAP"][pos])  # #
+          and ((not single_allowed) or is_neighbor((y, x), ":"))):  # #
+            world_db["MAP"][pos] = ord(":")  # #
+            i_colons += 1  # #
+    altar_placed = False  # #
+    while not altar_placed:  # #
+        y = rand.next() % length  # #
+        x = rand.next() % length  # #
+        pos = (y * length) + x  # #
+        if (("." == chr(world_db["MAP"][pos]  # #
+             or ":" == chr(world_db["MAP"][pos]))
+            and not is_neighbor((y, x), "X"))):  # #
+            world_db["MAP"][pos] = ord("_")  # #
+            world_db["altar"] = (y, x)  # #
+            altar_placed = True  # #
+
+
+def eat_vs_hunger_threshold(thingtype):
+    """Return satiation cost of eating for type. Good food for it must be >."""
+    hunger_unit = hunger_per_turn(thingtype)
+    actiontype = [id for id in world_db["ThingActions"]
+               if world_db["ThingActions"][id]["TA_NAME"] == "use"][0]
+    return world_db["ThingActions"][actiontype]["TA_EFFORT"] * hunger_unit
 
 
 def update_map_memory(t, age_map=True):
     """Update t's T_MEMMAP with what's in its FOV now,age its T_MEMMEPTHMAP."""
+
+    def age_some_memdepthmap_on_nonfov_cells():
+        # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
+        # ord_v = ord("v")
+        # ord_0 = ord("0")
+        # ord_9 = ord("9")
+        # for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
+        #             if not ord_v == t["fovmap"][pos]
+        #             if ord_0 <= t["T_MEMDEPTHMAP"][pos]
+        #             if ord_9 > t["T_MEMDEPTHMAP"][pos]
+        #             if not rand.next() % (2 **
+        #                                   (t["T_MEMDEPTHMAP"][pos] - 48))]:
+        #     t["T_MEMDEPTHMAP"][pos] += 1
+        memdepthmap = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
+        fovmap = c_pointer_to_bytearray(t["fovmap"])
+        libpr.age_some_memdepthmap_on_nonfov_cells(memdepthmap, fovmap)
+
+    def update_mem_and_memdepthmap_via_fovmap():
+        # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
+        # for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
+        #             if ord_v == t["fovmap"][pos]]:
+        #     t["T_MEMDEPTHMAP"][pos] = ord_0
+        #     t["T_MEMMAP"][pos] = world_db["MAP"][pos]
+        memdepthmap = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
+        memmap = c_pointer_to_bytearray(t["T_MEMMAP"])
+        fovmap = c_pointer_to_bytearray(t["fovmap"])
+        map = c_pointer_to_bytearray(world_db["MAP"])
+        libpr.update_mem_and_memdepthmap_via_fovmap(map, fovmap, memdepthmap,
+                                                    memmap)
+
     if not t["T_MEMMAP"]:
         t["T_MEMMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
     if not t["T_MEMDEPTHMAP"]:
         t["T_MEMDEPTHMAP"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
-    ord_v = ord("v")
-    ord_0 = ord("0")
-    ord_space = ord(" ")
-    for pos in [pos for pos in range(world_db["MAP_LENGTH"] ** 2)
-                if ord_v == t["fovmap"][pos]]:
-        t["T_MEMDEPTHMAP"][pos] = ord_0
-        if ord_space == t["T_MEMMAP"][pos]:
-            t["T_MEMMAP"][pos] = world_db["MAP"][pos]
+    update_mem_and_memdepthmap_via_fovmap()
     if age_map:
-        maptype = ctypes.c_char * len(t["T_MEMDEPTHMAP"])
-        memdepthmap = maptype.from_buffer(t["T_MEMDEPTHMAP"])
-        fovmap = maptype.from_buffer(t["fovmap"])
-        libpr.age_some_memdepthmap_on_nonfov_cells(memdepthmap, fovmap)
-    for mt in [mt for mt in t["T_MEMTHING"]
-               if "v" == chr(t["fovmap"][(mt[1] * world_db["MAP_LENGTH"])
-                                         + mt[2]])]:
-         t["T_MEMTHING"].remove(mt)
-    for id in [id for id in world_db["Things"]
-               if not world_db["Things"][id]["carried"]]:
-        type = world_db["Things"][id]["T_TYPE"]
-        if not world_db["ThingTypes"][type]["TT_LIFEPOINTS"]:
-            y = world_db["Things"][id]["T_POSY"]
-            x = world_db["Things"][id]["T_POSX"]
-            if "v" == chr(t["fovmap"][(y * world_db["MAP_LENGTH"]) + x]):
-                t["T_MEMTHING"].append((type, y, x))
+        age_some_memdepthmap_on_nonfov_cells()
+    ord_v = ord("v")
+    t["T_MEMTHING"] = [mt for mt in t["T_MEMTHING"]
+                       if ord_v != t["fovmap"][(mt[1] * world_db["MAP_LENGTH"])
+                                               + mt[2]]]
+    maplength = world_db["MAP_LENGTH"]
+    eat_cost = eat_vs_hunger_threshold(t["T_TYPE"])  # #
+    [t["T_MEMTHING"].append((world_db["Things"][id]["T_TYPE"],
+                             world_db["Things"][id]["T_POSY"],
+                             world_db["Things"][id]["T_POSX"]))
+     for id in world_db["Things"]
+     if not world_db["Things"][id]["carried"]
+     if not world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
+                                                              ["TT_LIFEPOINTS"]
+     if (t == world_db["Things"][0] or
+         (world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
+                                                          ["TT_TOOL"] == "food"
+          and 
+          world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
+                                                    ["TT_TOOLPOWER"] > eat_cost
+         )
+        )
+     if ord_v == t["fovmap"][(world_db["Things"][id]["T_POSY"] * maplength)
+                                       + world_db["Things"][id]["T_POSX"]]]
 
 
 def set_world_inactive():
@@ -511,12 +632,12 @@ def integer_test(val_string, min, max=None):
     """Return val_string if possible integer >= min and <= max, else None."""
     try:
         val = int(val_string)
-        if val < min or (max != None and val > max):
+        if val < min or (max is not None and val > max):
             raise ValueError
         return val
     except ValueError:
         msg = "Ignoring: Please use integer >= " + str(min)
-        if max != None:
+        if max is not None:
             msg += " and <= " + str(max)
         msg += "."
         print(msg)
@@ -552,32 +673,71 @@ def setter(category, key, min, max=None):
 def build_fov_map(t):
     """Build Thing's FOV map."""
     t["fovmap"] = bytearray(b'v' * (world_db["MAP_LENGTH"] ** 2))
-    maptype = ctypes.c_char * len(world_db["MAP"])
-    test = libpr.build_fov_map(t["T_POSY"], t["T_POSX"],
-                               maptype.from_buffer(t["fovmap"]),
-                               maptype.from_buffer(world_db["MAP"]))
-    if test:
+    fovmap = c_pointer_to_bytearray(t["fovmap"])
+    map = c_pointer_to_bytearray(world_db["MAP"])
+    if libpr.build_fov_map(t["T_POSY"], t["T_POSX"], fovmap, map):
         raise RuntimeError("Malloc error in build_fov_Map().")
 
 
+def log_help():
+    """Send quick usage info to log."""
+    log("Use 'w'/'e'/'s'/'d'/'x'/'c' to move, and 'w' to wait.")
+    log("Use 'p' to pick up objects, and 'D' to drop them.")
+    log("Some objects can be used (such as: eaten) by 'u' if they are in "
+        + "your inventory. Use 'Up'/'Down' to navigate the inventory.")
+    log("Use 'l' to toggle 'look' mode (move an exploration cursor instead of "
+        + "the player over the map).")
+    log("Use 'PgUp'/PgDn' to scroll the 'Things here' window.")
+    log("The stats window: T=TURN, H=HEALTH, S=SATIATION, G=GOD'S FAVOR.")
+    log("See README file for more details.")
+
+
 def decrement_lifepoints(t):
     """Decrement t's lifepoints by 1, and if to zero, corpse it.
 
     If t is the player avatar, only blank its fovmap, so that the client may
     still display memory data. On non-player things, erase fovmap and memory.
+    Dying actors drop all their things.
     """
+    # 7DRL: Return TT_LIFEPOINTS if death, else 0.
+    # 7DRL: Re-spawn died-out species.
     t["T_LIFEPOINTS"] -= 1
+    live_type = t["T_TYPE"] # 7DRL
     if 0 == t["T_LIFEPOINTS"]:
+        for id in t["T_CARRIES"]:
+            t["T_CARRIES"].remove(id)
+            world_db["Things"][id]["T_POSY"] = t["T_POSY"]
+            world_db["Things"][id]["T_POSX"] = t["T_POSX"]
+            world_db["Things"][id]["carried"] = False
         t["T_TYPE"] = world_db["ThingTypes"][t["T_TYPE"]]["TT_CORPSE_ID"]
         if world_db["Things"][0] == t:
             t["fovmap"] = bytearray(b' ' * (world_db["MAP_LENGTH"] ** 2))
-            strong_write(io_db["file_out"], "LOG You die.\n")
+            log("You die.")
+            log("See README on how to start over.")
         else:
             t["fovmap"] = False
             t["T_MEMMAP"] = False
             t["T_MEMDEPTHMAP"] = False
             t["T_MEMTHING"] = []
-            strong_write(io_db["file_out"], "LOG It dies.\n")
+            n_species = len([id for id in world_db["Things"]  # #
+                             if world_db["Things"][id]["T_TYPE"] == live_type])
+            if 0 == n_species:  # #
+                if world_db["FAVOR_STAGE"] >= 3 and \
+                    live_type == world_db["ANIMAL_0"]:
+                    world_db["GOD_FAVOR"] += 3000
+                    log("CONGRATULATIONS! The "
+                        + world_db["ThingTypes"][live_type]["TT_NAME"]
+                        + " species has died out. The Island God is pleased.")
+                else:
+                    id = id_setter(-1, "Things")
+                    world_db["Things"][id] = new_Thing(live_type,
+                                                       world_db["altar"])
+                    log("The "
+                        + world_db["ThingTypes"][live_type]["TT_NAME"]
+                        + " species has temporarily died out. "
+                        + "One new-born is spawned at the altar.")
+        return world_db["ThingTypes"][live_type]["TT_LIFEPOINTS"]  # #
+    return 0  # #
 
 
 def mv_yx_in_dir_legal(dir, y, x):
@@ -589,20 +749,128 @@ def mv_yx_in_dir_legal(dir, y, x):
     return (test, libpr.result_y(), libpr.result_x())
 
 
+def enter_altar():  # #
+    """What happens when the player enters the altar."""
+    if world_db["FAVOR_STAGE"] > 9000:
+       log("You step on a soul-less slab of stone.")
+       return
+    log("YOU ENTER SACRED GROUND.")
+    if world_db["FAVOR_STAGE"] == 0:
+        world_db["FAVOR_STAGE"] = 1
+        log("The Island God speaks to you: \"I don't trust you. You intrude "
+             + "on the island's affairs. I think you're a nuisance at best, "
+             + "and a danger to my children at worst. I will give you a "
+             + "chance to lighten my mood, however: For a while now, I've "
+             + "been trying to spread the plant "
+             + world_db["ThingTypes"][world_db["PLANT_0"]]["TT_NAME"] + " (\""
+             + world_db["ThingTypes"][world_db["PLANT_0"]]["TT_SYMBOL"]
+             + "\"). I have not been very successful so far. Maybe you can "
+             + "make yourself useful there. I will count each further "
+             + world_db["ThingTypes"][world_db["PLANT_0"]]["TT_NAME"]
+             + " that grows to your favor.\"")
+    elif world_db["FAVOR_STAGE"] == 1 and world_db["GOD_FAVOR"] < 100:
+        log("The Island God will talk again when it favors you to >=100 "
+             +" points.")
+    elif world_db["FAVOR_STAGE"] == 1 and world_db["GOD_FAVOR"] >= 100:
+        world_db["FAVOR_STAGE"] = 2
+        log("The Island God speaks to you: \"You could have done worse so "
+            + "far. Maybe you are not the worst to happen to this island "
+            + "since the metal birds threw the great lightning ball. Maybe "
+            + "you can help me spread another plant. It multiplies faster, "
+            + "and it is highly nutritious: "
+            + world_db["ThingTypes"][world_db["PLANT_1"]]["TT_NAME"] + " (\""
+            + world_db["ThingTypes"][world_db["PLANT_1"]]["TT_SYMBOL"]
+            + "\"). It is new. I give you the only example. Be very careful "
+            + "with it! I also give you another tool that may be helpful.\"")
+        id = id_setter(-1, "Things")
+        world_db["Things"][id] = new_Thing(world_db["PLANT_1"],
+                                           world_db["altar"])
+        id = id_setter(-1, "Things")
+        world_db["Things"][id] = new_Thing(world_db["TOOL_0"],
+                                           world_db["altar"])
+    elif world_db["FAVOR_STAGE"] == 2 and \
+        0 == len([id for id in world_db["Things"]
+                  if world_db["Things"][id]["T_TYPE"]
+                     == world_db["PLANT_1"]]):
+        log("The Island God speaks to you: \"I am greatly disappointed that "
+            + "you lost all "
+            + world_db["ThingTypes"][world_db["PLANT_1"]]["TT_NAME"]
+            + " this island had. Here is another one. It cost me great work. "
+           + "Be more careful this time when planting it.\"")
+        id = id_setter(-1, "Things")
+        world_db["Things"][id] = new_Thing(world_db["PLANT_1"],
+                                           world_db["altar"])
+        world_db["GOD_FAVOR"] -= 250
+    elif world_db["FAVOR_STAGE"] == 2 and world_db["GOD_FAVOR"] < 500:
+        log("The Island God will talk again when it favors you to >=500 "
+             +" points.")
+    elif world_db["FAVOR_STAGE"] == 2 and world_db["GOD_FAVOR"] >= 500:
+        world_db["FAVOR_STAGE"] = 3
+        log("The Island God speaks to you: \"The "
+            + world_db["ThingTypes"][world_db["ANIMAL_0"]]["TT_NAME"]
+            + " has lately become a pest. These creatures do not please me "
+            + "as much as they used to do. Exterminate them all. I will count "
+            + "each kill to your favor. To help you with the hunting, I grant "
+            + "you the empathy and knowledge to read animals.\"")
+        log("You will now see animals' health bars, and activities (\"m\": "
+            + "moving (maybe for an attack), \"u\": eating, \"p\": picking "
+            + "something up; no letter: waiting).")
+        world_db["EMPATHY"] = 1
+    elif world_db["FAVOR_STAGE"] == 3 and world_db["GOD_FAVOR"] < 5000:
+        log("The Island God will talk again when it favors you to >=5000 "
+             +" points.")
+    elif world_db["FAVOR_STAGE"] == 3 and world_db["GOD_FAVOR"] >= 5000:
+        world_db["FAVOR_STAGE"] = 4
+        log("The Island God speaks to you: \"You know what animal I find the "
+             + "cutest? The "
+             + world_db["ThingTypes"][world_db["ANIMAL_1"]]["TT_NAME"]
+             + "! I think what this islands clearly needs more of is " 
+             + world_db["ThingTypes"][world_db["ANIMAL_1"]]["TT_NAME"]
+             + "s. Why don't you help? Support thm. Make sure they are well, "
+             + "and they will multiply faster. From now on, I will "
+             + "count each new-born "
+             + world_db["ThingTypes"][world_db["ANIMAL_1"]]["TT_NAME"]
+             + " (not spawned by me due to undo an extinction event) "
+             + "greatly to your favor. To help you with the feeding, here is "
+             + "something to make the ground bear more consumables.")
+        id = id_setter(-1, "Things")
+        world_db["Things"][id] = new_Thing(world_db["TOOL_1"],
+                                           world_db["altar"])
+    elif world_db["GOD_FAVOR"] < 20000:
+        log("The Island God will talk again when it favors you to >=20000 "
+             +" points.")
+    elif world_db["GOD_FAVOR"] >= 20000:
+        world_db["FAVOR_STAGE"] = 9001
+        log("The Island God speaks to you: \"You have proven yourself worthy"
+             + " of my respect. You were a good citizen to the island, and "
+             + "sometimes a better steward to its inhabitants than me. The "
+             + "island shall miss you when you leave. But you have earned "
+             + "the right to do so. Take this "
+             + world_db["ThingTypes"][world_db["SLIPPERS"]]["TT_NAME"]
+             + " and USE it when you please. It will take you to where you "
+             + "came from. (But do feel free to stay here as long as you "
+             + "like.)\"")
+        id = id_setter(-1, "Things")
+        world_db["Things"][id] = new_Thing(world_db["SLIPPERS"],
+                                           world_db["altar"])
+
+
 def actor_wait(t):
     """Make t do nothing (but loudly, if player avatar)."""
     if t == world_db["Things"][0]:
-        strong_write(io_db["file_out"], "LOG You wait.\n")
+        log("You wait.")
 
 
 def actor_move(t):
     """If passable, move/collide(=attack) thing into T_ARGUMENT's direction."""
+    # 7DRL: Player wounding (worse: killing) others will lower God's favor.
+    # 7DRL: Player entering the altar triggers enter_altar().
+    # 7DRL: Player with axe chops down trees.
     passable = False
     move_result = mv_yx_in_dir_legal(chr(t["T_ARGUMENT"]),
                                      t["T_POSY"], t["T_POSX"])
     if 1 == move_result[0]:
         pos = (move_result[1] * world_db["MAP_LENGTH"]) + move_result[2]
-        passable = "." == chr(world_db["MAP"][pos])
         hitted = [id for id in world_db["Things"]
                   if world_db["Things"][id] != t
                   if world_db["Things"][id]["T_LIFEPOINTS"]
@@ -610,16 +878,58 @@ def actor_move(t):
                   if world_db["Things"][id]["T_POSX"] == move_result[2]]
         if len(hitted):
             hit_id = hitted[0]
-            hitter_name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
-            hitter = "You" if t == world_db["Things"][0] else hitter_name
             hitted_type = world_db["Things"][hit_id]["T_TYPE"]
-            hitted_name = world_db["ThingTypes"][hitted_type]["TT_NAME"]
-            hitted = "you" if hit_id == 0 else hitted_name
-            verb = " wound " if hitter == "You" else " wounds "
-            strong_write(io_db["file_out"], "LOG " + hitter + verb + hitted +
-                                            ".\n")
-            decrement_lifepoints(world_db["Things"][hit_id])
+            if t == world_db["Things"][0]:
+                hitted_name = world_db["ThingTypes"][hitted_type]["TT_NAME"]
+                log("You WOUND " + hitted_name + ".")
+                world_db["GOD_FAVOR"] -= 1  # #
+            elif 0 == hit_id:
+                hitter_name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
+                log(hitter_name +" WOUNDS you.")
+            test = decrement_lifepoints(world_db["Things"][hit_id])  # #(test=)
+            if test and world_db["FAVOR_STAGE"] >= 3 and \
+               hitted_type == world_db["ANIMAL_0"]:  # #
+                world_db["GOD_FAVOR"] += 125
+            elif test and t == world_db["Things"][0]:  # #
+                world_db["GOD_FAVOR"] -= 2 * test  # #
             return
+        if (ord("X") == world_db["MAP"][pos]  # #
+            or ord("|") == world_db["MAP"][pos]):  # #
+            carries_axe = False  # #
+            for id in t["T_CARRIES"]:  # # 
+                type = world_db["Things"][id]["T_TYPE"]  # #
+                if world_db["ThingTypes"][type]["TT_TOOL"] == "axe":  # #
+                    carries_axe = True  # #
+                    break  # #
+            if carries_axe:  # #
+                axe_name = world_db["ThingTypes"][type]["TT_NAME"]  # #
+                if t == world_db["Things"][0]:  # #
+                    log("With your " + axe_name + ", you chop!\n")  # #
+                    if ord("X") == world_db["MAP"][pos]:  # #
+                        world_db["GOD_FAVOR"] = -1  # #
+                chop_power = world_db["ThingTypes"][type]["TT_TOOLPOWER"]
+                case_X = world_db["MAP"][pos] == ord("X")  # #
+                if (chop_power > 0  # #
+                    and ((case_X and  # #
+                          0 == int(rand.next() / chop_power))  # #
+                    or (not case_X and  # #
+                             0 == int(rand.next() / (3 * chop_power))))):  # #
+                    if t == world_db["Things"][0]:  # #
+                        log("You chop it DOWN.")  # #
+                    if world_db["MAP"][pos] == ord("X"):  # #
+                        world_db["GOD_FAVOR"] -= 10  # #
+                    world_db["MAP"][pos] = ord(".")   # #
+                    i = 3 if case_X else 1  # #
+                    for i in range(i):  # #
+                        id = id_setter(-1, "Things")  # #
+                        world_db["Things"][id] = \
+                          new_Thing(world_db["LUMBER"],  # #
+                                    (move_result[1], move_result[2]))  # # 
+                    build_fov_map(t)  # #
+                return   # #
+        passable = ("." == chr(world_db["MAP"][pos]) or
+                    ":" == chr(world_db["MAP"][pos]) or # #
+                    "_" == chr(world_db["MAP"][pos])) # #
     dir = [dir for dir in directions_db
            if directions_db[dir] == chr(t["T_ARGUMENT"])][0]
     if passable:
@@ -630,30 +940,55 @@ def actor_move(t):
             world_db["Things"][id]["T_POSX"] = move_result[2]
         build_fov_map(t)
         if t == world_db["Things"][0]:
-            strong_write(io_db["file_out"], "LOG You move " + dir + ".\n")
+            log("You move " + dir + ".")
+            if (move_result[1] == world_db["altar"][0] and  # #
+                move_result[2] == world_db["altar"][1]):  # #
+                enter_altar()  # #
     elif t == world_db["Things"][0]:
-        strong_write(io_db["file_out"], "LOG You fail to move " + dir + ".\n")
+        log("You FAIL to move " + dir + ".")
 
 
 def actor_pick_up(t):
-    """Make t pick up (topmost?) Thing from ground into inventory."""
-    # Topmostness is actually not defined so far. Picks Thing with highest ID.
-    ids = [id for id in world_db["Things"] if world_db["Things"][id] != t
-           if not world_db["Things"][id]["carried"]
-           if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
-           if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
-    if len(ids):
-        highest_id = 0
-        for id in ids:
-            if id > highest_id:
-                highest_id = id
-        world_db["Things"][highest_id]["carried"] = True
-        t["T_CARRIES"].append(highest_id)
-        if t == world_db["Things"][0]:
-            strong_write(io_db["file_out"], "LOG You pick up an object.\n")
-    elif t == world_db["Things"][0]:
-        err = "You try to pick up an object, but there is none."
-        strong_write(io_db["file_out"], "LOG " + err + "\n")
+    """Make t pick up (topmost?) Thing from ground into inventory.
+
+    Define topmostness by how low the thing's type ID is.
+    """
+    # 7DRL: Non-player picking up player-dropped consumable -> GOD_FAVOR gain.
+    # 7DRL: Non-players pick up nothing but food of good value to them.
+    used_slots = len(t["T_CARRIES"]) # #
+    if used_slots < world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"]: # #
+        ids = [id for id in world_db["Things"] if world_db["Things"][id] != t
+               if not world_db["Things"][id]["carried"]
+               if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
+               if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
+        if len(ids):
+            lowest_tid = -1
+            eat_cost = eat_vs_hunger_threshold(t["T_TYPE"]) # #
+            for iid in ids:
+                tid = world_db["Things"][iid]["T_TYPE"] 
+                if lowest_tid == -1 or tid < lowest_tid:
+                    if (t != world_db["Things"][0] and  # #
+                        (world_db["ThingTypes"][tid]["TT_TOOL"] != "food"  # #
+                         or (world_db["ThingTypes"][tid]["TT_TOOLPOWER"]  # #
+                             <= eat_cost))):  # #
+                        continue  # #
+                    id = iid
+                    lowest_tid = tid
+            world_db["Things"][id]["carried"] = True
+            type = world_db["Things"][id]["T_TYPE"]  # #
+            if (t != world_db["Things"][0] # #
+                and world_db["Things"][id]["T_PLAYERDROP"]  # #
+                and world_db["ThingTypes"][type]["TT_TOOL"] == "food"):  # #
+                score = world_db["ThingTypes"][type]["TT_TOOLPOWER"] / 32  # #
+                world_db["GOD_FAVOR"] += score  # #
+                world_db["Things"][id]["T_PLAYERDROP"] = 0  # #
+            t["T_CARRIES"].append(id)
+            if t == world_db["Things"][0]:
+                log("You PICK UP an object.")
+        elif t == world_db["Things"][0]:
+            log("You try to pick up an object, but there is none.")
+    elif t == world_db["Things"][0]: # #
+        log("CAN'T pick up object: No storage room to carry more.") # #
 
 
 def actor_drop(t):
@@ -664,102 +999,163 @@ def actor_drop(t):
         t["T_CARRIES"].remove(id)
         world_db["Things"][id]["carried"] = False
         if t == world_db["Things"][0]:
-            strong_write(io_db["file_out"], "LOG You drop an object.\n")
+            log("You DROP an object.")
+            world_db["Things"][id]["T_PLAYERDROP"] = 1  # #
     elif t == world_db["Things"][0]:
-        err = "You try to drop an object, but you own none."
-        strong_write(io_db["file_out"], "LOG " + err + "\n")
+       log("You try to drop an object, but you own NONE.")
 
 
 def actor_use(t):
     """Make t use (for now: consume) T_ARGUMENT-indexed Thing in inventory."""
     # TODO: Handle case where T_ARGUMENT matches nothing.
+    # 7DLR: Handle SLIPPERS-type Thing use.
+    # 7DRL: Player with fertilizer fertilizes
     if len(t["T_CARRIES"]):
         id = t["T_CARRIES"][t["T_ARGUMENT"]]
         type = world_db["Things"][id]["T_TYPE"]
-        if world_db["ThingTypes"][type]["TT_CONSUMABLE"]:
+        if type == world_db["SLIPPERS"]:  # #
+            if t == world_db["Things"][0]:  # #
+                log("You use the " + world_db["ThingTypes"][type]["TT_NAME"]  # #
+                    + ". It glows in wondrous colors, and emits a sound as "  # #
+                    + "if from a dying cat. The Island God laughs.\n")  # #
+            t["T_LIFEPOINTS"] = 1  # #
+            decrement_lifepoints(t)  # #
+        elif (world_db["ThingTypes"][type]["TT_TOOL"] == "axe"  # #
+              and t == world_db["Things"][0]):  # #
+                log("To use this item for chopping, move towards a tree while "
+                     + "carrying it in your inventory.")  # #
+        elif (world_db["ThingTypes"][type]["TT_TOOL"] == "carpentry"):  # #
+            pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
+            if (world_db["MAP"][pos] == ord("X")  # #
+                or world_db["MAP"][pos] == ord("|")):  # #
+                log("CAN'T build when standing on barrier.")  # #
+                return
+            for id in [id for id in world_db["Things"]
+                       if not world_db["Things"][id] == t
+                       if not world_db["Things"][id]["carried"]
+                       if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
+                       if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]:
+                 log("CAN'T build when standing objects.")  # #
+                 return
+            for id in t["T_CARRIES"]:  # #
+                type_tool = world_db["Things"][id]["T_TYPE"]  # #
+                if (world_db["ThingTypes"][type_tool]["TT_TOOL"]  # #
+                    == "carpentry"):  # #
+                    break  # #
+            wood_id = None  # #
+            for id in t["T_CARRIES"]:  # #
+                type_material = world_db["Things"][id]["T_TYPE"]  # #
+                if (world_db["ThingTypes"][type_material]["TT_TOOL"]  # #
+                    == "wood"):  # #
+                    wood_id = id  # #
+                    break  # #
+            if wood_id != None:  # #
+                t["T_CARRIES"].remove(wood_id)  # #
+                del world_db["Things"][wood_id]  # #
+                world_db["MAP"][pos] = ord("|")  # #
+                log("With your "  # #
+                    + world_db["ThingTypes"][type_tool]["TT_NAME"]  # #
+                    + " you build a WOODEN BARRIER from your "  # #
+                    + world_db["ThingTypes"][type_material]["TT_NAME"]  # #
+                    + ".")  # #
+            else:  # #
+                log("You CAN'T use a "  # #
+                    + world_db["ThingTypes"][type_tool]["TT_NAME"]  # #
+                    + " without some wood in your inventory.")  # #
+        elif world_db["ThingTypes"][type]["TT_TOOL"] == "fertilizer":  # #
+            pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
+            if world_db["MAP"][pos] == ord("."):
+                log("You create SOIL.")
+                world_db["MAP"][pos] = ord(":")
+            else:
+                log("Can only make soil out of NON-SOIL earth.")
+        elif world_db["ThingTypes"][type]["TT_TOOL"] == "food":
             t["T_CARRIES"].remove(id)
             del world_db["Things"][id]
-            t["T_SATIATION"] += world_db["ThingTypes"][type]["TT_CONSUMABLE"]
+            t["T_SATIATION"] += world_db["ThingTypes"][type]["TT_TOOLPOWER"]
             if t == world_db["Things"][0]:
-                strong_write(io_db["file_out"],
-                             "LOG You consume this object.\n")
+                log("You eat this thing.")
         elif t == world_db["Things"][0]:
-            strong_write(io_db["file_out"],
-                         "LOG You try to use this object, but fail.\n")
+            log("You try to use this object, but FAIL.")
     elif t == world_db["Things"][0]:
-        strong_write(io_db["file_out"],
-                     "LOG You try to use an object, but you own none.\n")
+        log("You try to use an object, but you own NONE.")
 
 
-def thingproliferation(t):
-    """To chance of 1/TT_PROLIFERATE, create t offspring in neighbor cell.
+def thingproliferation(t, prol_map):
+    """To chance of 1/TT_PROLIFERATE, create t offspring in open neighbor cell.
 
-    Naturally only works with TT_PROLIFERATE > 0. The neighbor cell must be
-    passable and not be inhabited by a Thing of the same type, or, if Thing is
-    animate, any other animate Thing. If there are several map cell candidates,
-    one is selected randomly.
+    Naturally only works with TT_PROLIFERATE > 0. The neighbor cell must be be
+    marked "." in prol_map. If there are several map cell candidates, one is
+    selected randomly.
     """
-    def test_cell(t, y, x):
-        if "." == chr(world_db["MAP"][(y * world_db["MAP_LENGTH"]) + x]):
-            for id in [id for id in world_db["Things"]
-                       if y == world_db["Things"][id]["T_POSY"]
-                       if x == world_db["Things"][id]["T_POSX"]
-                       if (t["T_TYPE"] == world_db["Things"][id]["T_TYPE"])
-                       or (t["T_LIFEPOINTS"] and
-                           world_db["Things"][id]["T_LIFEPOINTS"])]:
-                return False
-            return True
-        return False
+    # 7DRL: success increments God's mood
+    # 7DRL: Plants (no TT_LIFEPOINTS) proliferate only on ":" ground.
+    # 7DRL: Animals only proliferate when >= 0.9 their max HP.
     prolscore = world_db["ThingTypes"][t["T_TYPE"]]["TT_PROLIFERATE"]
-    if prolscore and (1 == prolscore or 1 == (rand.next() % prolscore)):
+    if prolscore and \
+      (world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"] == 0 or  # #
+       t["T_LIFEPOINTS"] >= 0.9 *  # #
+                        world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]) \
+       and \
+      (1 == prolscore or 1 == (rand.next() % prolscore)):
         candidates = []
         for dir in [directions_db[key] for key in directions_db]:
             mv_result = mv_yx_in_dir_legal(dir, t["T_POSY"], t["T_POSX"])
-            if mv_result[0] and test_cell(t, mv_result[1], mv_result[2]):
+            pos = mv_result[1] * world_db["MAP_LENGTH"] + mv_result[2]
+            if mv_result[0] and \
+               (ord(":") == prol_map[pos]  # #
+                or (world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]  # #
+                    and ord(".") == prol_map[pos])):
+            # if mv_result[0] and ord(".") == prol_map[mv_result[1]
+            #                                          * world_db["MAP_LENGTH"]
+            #                                          + mv_result[2]]:
                 candidates.append((mv_result[1], mv_result[2]))
         if len(candidates):
             i = rand.next() % len(candidates)
             id = id_setter(-1, "Things")
             newT = new_Thing(t["T_TYPE"], (candidates[i][0], candidates[i][1]))
             world_db["Things"][id] = newT
+            if (world_db["FAVOR_STAGE"] > 0  # #
+                and t["T_TYPE"] == world_db["PLANT_0"]):  # #
+                world_db["GOD_FAVOR"] += 5  # #
+            elif t["T_TYPE"] == world_db["PLANT_1"]:  # #
+                world_db["GOD_FAVOR"] += 25  # #
+            elif world_db["FAVOR_STAGE"] >= 4 and \
+                 t["T_TYPE"] == world_db["ANIMAL_1"]:
+                log("The Island God SMILES upon a new-born bear baby.")
+                world_db["GOD_FAVOR"] += 750
 
 
 def try_healing(t):
-    """Grow t's HP to a 1/32 chance if < HP max, satiation > 0, and waiting.
+    """If t's HP < max, increment them if well-nourished, maybe waiting."""
+    # 7DRL: Successful heals increment God's mood.
+    if t["T_LIFEPOINTS"] < \
+       world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]:
+        wait_id = [id for id in world_db["ThingActions"]
+                      if world_db["ThingActions"][id]["TA_NAME"] == "wait"][0]
+        wait_divider = 8 if t["T_COMMAND"] == wait_id else 1
+        testval = int(abs(t["T_SATIATION"]) / wait_divider)
+        if (testval <= 1 or 1 == (rand.next() % testval)):
+            t["T_LIFEPOINTS"] += 1
+            if t == world_db["Things"][0]:
+                log("You HEAL.")
 
-    On success, decrease satiation score by 32.
-    """
-    if t["T_SATIATION"] > 0 \
-       and t["T_LIFEPOINTS"] < \
-           world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"] \
-       and 0 == (rand.next() % 31) \
-       and t["T_COMMAND"] == [id for id in world_db["ThingActions"]
-                              if world_db["ThingActions"][id]["TA_NAME"] ==
-                                 "wait"][0]:
-        t["T_LIFEPOINTS"] += 1
-        t["T_SATIATION"] -= 32
-        if t == world_db["Things"][0]:
-            strong_write(io_db["file_out"], "LOG You heal.\n")
-        else:
-            name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
-            strong_write(io_db["file_out"], "LOG " + name + "heals.\n")
+
+def hunger_per_turn(type_id):
+    """The amount of satiation score lost per turn for things of given type."""
+    return int(math.sqrt(world_db["ThingTypes"][type_id]["TT_LIFEPOINTS"]))
 
 
 def hunger(t):
     """Decrement t's satiation,dependent on it trigger lifepoint dec chance."""
     if t["T_SATIATION"] > -32768:
-        t["T_SATIATION"] -= 1
-    testbase = t["T_SATIATION"] if t["T_SATIATION"] >= 0 else -t["T_SATIATION"]
-    if not world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"]:
-        raise RuntimeError("A thing that should not hunger is hungering.")
-    stomach = int(32767 / world_db["ThingTypes"][t["T_TYPE"]]["TT_LIFEPOINTS"])
-    if int(int(testbase / stomach) / ((rand.next() % stomach) + 1)):
+        t["T_SATIATION"] -= hunger_per_turn(t["T_TYPE"])
+    if 0 != t["T_SATIATION"] and 0 == int(rand.next() / abs(t["T_SATIATION"])):
         if t == world_db["Things"][0]:
-            strong_write(io_db["file_out"], "LOG You suffer from hunger.\n")
-        else:
-            name = world_db["ThingTypes"][t["T_TYPE"]]["TT_NAME"]
-            strong_write(io_db["file_out"], "LOG " + name +
-                                            " suffers from hunger.\n")
+            if t["T_SATIATION"] < 0:
+                log("You SUFFER from hunger.")
+            else:
+                log("You SUFFER from over-eating.")
         decrement_lifepoints(t)
 
 
@@ -769,27 +1165,33 @@ def get_dir_to_target(t, filter):
     The path-wise nearest target is chosen, via the shortest available path.
     Target must not be t. On succcess, return positive value, else False.
     Filters:
-    "a": Thing in FOV is below a certain distance, animate, but of ThingType
-         that is not t's, and starts out weaker than t is; build path as
-         avoiding things of t's ThingType
-    "f": neighbor cell (not inhabited by any animate Thing) further away from
-         animate Thing not further than x steps away and in FOV and of a
-         ThingType that is not t's, and starts out stronger or as strong as t
-         is currently; or (cornered), if no such flight cell, but Thing of
-         above criteria is too near,1 a cell closer to it, or, if less near,
-         just wait
-    "c": Thing in memorized map is consumable
+    "a": Thing in FOV is animate, but of ThingType, starts out weaker than t
+         is, and its corpse would be healthy food for t
+    "f": move away from an enemy – any visible actor whose thing type has more
+         TT_LIFEPOINTS than t LIFEPOINTS, and might find t's corpse healthy
+         food – if it is closer than n steps, where n will shrink as t's hunger
+         grows; if enemy is too close, move towards (attack) the enemy instead;
+         if no fleeing is possible, nor attacking useful, wait; don't tread on
+         non-enemies for fleeing
+    "c": Thing in memorized map is consumable of sufficient nutrition for t
     "s": memory map cell with greatest-reachable degree of unexploredness
     """
 
     def zero_score_map_where_char_on_memdepthmap(c):
-        maptype = ctypes.c_char * len(t["T_MEMDEPTHMAP"])
-        map = maptype.from_buffer(t["T_MEMDEPTHMAP"])
-        test = libpr.zero_score_map_where_char_on_memdepthmap(c, map)
-        if test:
+        # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
+        # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
+        #           if t["T_MEMDEPTHMAP"][i] == mem_depth_c[0]]:
+        #     set_map_score(i, 0)
+        map = c_pointer_to_bytearray(t["T_MEMDEPTHMAP"])
+        if libpr.zero_score_map_where_char_on_memdepthmap(c, map):
             raise RuntimeError("No score map allocated for "
                                "zero_score_map_where_char_on_memdepthmap().")
 
+    def set_map_score_at_thingpos(id, score):
+        pos = world_db["Things"][id]["T_POSY"] * world_db["MAP_LENGTH"] \
+                                     + world_db["Things"][id]["T_POSX"]
+        set_map_score(pos, score)
+
     def set_map_score(pos, score):
         test = libpr.set_map_score(pos, score)
         if test:
@@ -801,72 +1203,108 @@ def get_dir_to_target(t, filter):
             raise RuntimeError("No score map allocated for get_map_score().")
         return result
 
+    def animate_in_fov(Thing, maplength): # maplength needed for optimization?
+        if not Thing["T_LIFEPOINTS"] or Thing["carried"] or Thing == t:
+            return False
+        pos = Thing["T_POSY"] * maplength + Thing["T_POSX"]
+        if 118 == t["fovmap"][pos]: # optimization: 118 = ord("v")
+            return True
+
+    def good_attack_target(v):
+        eat_cost = eat_vs_hunger_threshold(t["T_TYPE"])
+        type = world_db["ThingTypes"][v["T_TYPE"]]
+        type_corpse = world_db["ThingTypes"][type["TT_CORPSE_ID"]]
+        if t["T_LIFEPOINTS"] > type["TT_LIFEPOINTS"] \
+        and type_corpse["TT_TOOL"] == "food" \
+        and type_corpse["TT_TOOLPOWER"] > eat_cost:
+            return True
+        return False
+
+    def good_flee_target(m):
+        own_corpse_id = world_db["ThingTypes"][t["T_TYPE"]]["TT_CORPSE_ID"]
+        corpse_type = world_db["ThingTypes"][own_corpse_id]
+        targetness = 0 if corpse_type["TT_TOOL"] != "food" \
+                       else corpse_type["TT_TOOLPOWER"]
+        type = world_db["ThingTypes"][m["T_TYPE"]]
+        if t["T_LIFEPOINTS"] < type["TT_LIFEPOINTS"] \
+        and targetness > eat_vs_hunger_threshold(m["T_TYPE"]):
+            return True
+        return False
+
     def seeing_thing():
-        if t["fovmap"] and ("a" == filter or "f" == filter):
+        maplength = world_db["MAP_LENGTH"]
+        if t["fovmap"] and "a" == filter:
+            for id in world_db["Things"]:
+                if animate_in_fov(world_db["Things"][id], maplength):
+                    if good_attack_target(world_db["Things"][id]):
+                        return True
+        elif t["fovmap"] and "f" == filter:
             for id in world_db["Things"]:
-                Thing = world_db["Things"][id]
-                if Thing != t and Thing["T_LIFEPOINTS"] and \
-                   t["T_TYPE"] != Thing["T_TYPE"] and \
-                   'v' == chr(t["fovmap"][(Thing["T_POSY"]
-                                          * world_db["MAP_LENGTH"])
-                                          + Thing["T_POSX"]]):
-                    ThingType = world_db["ThingTypes"][Thing["T_TYPE"]]
-                    if ("f" == filter and ThingType["TT_LIFEPOINTS"] >=
-                                          t["T_LIFEPOINTS"]) \
-                       or ("a" == filter and ThingType["TT_LIFEPOINTS"] <
-                                             t["T_LIFEPOINTS"]):
+                if animate_in_fov(world_db["Things"][id], maplength):
+                    if good_flee_target(world_db["Things"][id]):
                         return True
         elif t["T_MEMMAP"] and "c" == filter:
+            eat_cost = eat_vs_hunger_threshold(t["T_TYPE"])
+            ord_blank = ord(" ")
             for mt in t["T_MEMTHING"]:
-                if ' ' != chr(t["T_MEMMAP"][(mt[1] * world_db["MAP_LENGTH"])
-                                         + mt[2]]) \
-                   and world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]:
+                if ord_blank != t["T_MEMMAP"][(mt[1] * world_db["MAP_LENGTH"])
+                                            + mt[2]] and \
+                   (t != world_db["Things"][0] or \
+                    (world_db["ThingTypes"][mt[0]]["TT_TOOL"] == "food"
+                      and world_db["ThingTypes"][mt[0]]["TT_TOOLPOWER"]
+                       > eat_cost)):
                     return True
         return False
 
+    def set_cells_passable_on_memmap_to_65534_on_scoremap():
+        # OUTSOURCED FOR PERFORMANCE REASONS TO libplomrogue.so:
+        # ord_dot = ord(".")
+        # memmap = t["T_MEMMAP"]
+        # for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
+        #            if ord_dot == memmap[i]]:
+        #     set_map_score(i, 65534) # i.e. 65535-1
+        map = c_pointer_to_bytearray(t["T_MEMMAP"])
+        if libpr.set_cells_passable_on_memmap_to_65534_on_scoremap(map):
+            raise RuntimeError("No score map allocated for "
+                        "set_cells_passable_on_memmap_to_65534_on_scoremap().")
+
     def init_score_map():
         test = libpr.init_score_map()
         if test:
             raise RuntimeError("Malloc error in init_score_map().")
-        ord_dot = ord(".")
-        ord_v = ord("v")
-        ord_blank = ord(" ")
-        for i in [i for i in range(world_db["MAP_LENGTH"] ** 2)
-                  if ord_dot == t["T_MEMMAP"][i]]:
-            set_map_score(i, 65535 - 1)
+        set_cells_passable_on_memmap_to_65534_on_scoremap()
+        maplength = world_db["MAP_LENGTH"]
         if "a" == filter:
-            for id in world_db["Things"]:
-                Thing = world_db["Things"][id]
-                pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
-                      + Thing["T_POSX"]
-                if t != Thing and Thing["T_LIFEPOINTS"] and \
-                   t["T_TYPE"] != Thing["T_TYPE"] and \
-                   ord_v == t["fovmap"][pos] and \
-                   t["T_LIFEPOINTS"] > \
-                   world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
-                    set_map_score(pos, 0)
-                elif t["T_TYPE"] == Thing["T_TYPE"]:
-                    set_map_score(pos, 65535)
+            [set_map_score_at_thingpos(id, 0)
+             for id in world_db["Things"]
+             if animate_in_fov(world_db["Things"][id], maplength)
+             if good_attack_target(world_db["Things"][id])]
         elif "f" == filter:
-            for id in [id for id in world_db["Things"]
-                       if world_db["Things"][id]["T_LIFEPOINTS"]]:
-                Thing = world_db["Things"][id]
-                pos = Thing["T_POSY"] * world_db["MAP_LENGTH"] \
-                      + Thing["T_POSX"]
-                if t["T_TYPE"] != Thing["T_TYPE"] and \
-                   ord_v == t["fovmap"][pos] and \
-                   t["T_LIFEPOINTS"] <= \
-                   world_db["ThingTypes"][Thing["T_TYPE"]]["TT_LIFEPOINTS"]:
-                    set_map_score(pos, 0)
+            [set_map_score_at_thingpos(id, 0)
+             for id in world_db["Things"]
+             if animate_in_fov(world_db["Things"][id], maplength)
+             if good_flee_target(world_db["Things"][id])]
         elif "c" == filter:
-            for mt in [mt for mt in t["T_MEMTHING"]
-                       if ord_blank != t["T_MEMMAP"][mt[1]
-                                                    * world_db["MAP_LENGTH"]
-                                                    + mt[2]]
-                       if world_db["ThingTypes"][mt[0]]["TT_CONSUMABLE"]]:
-                set_map_score(mt[1] * world_db["MAP_LENGTH"] + mt[2], 0)
+            eat_cost = eat_vs_hunger_threshold(t["T_TYPE"])
+            ord_blank = ord(" ")
+            [set_map_score(mt[1] * maplength + mt[2], 0)
+             for mt in t["T_MEMTHING"]
+             if ord_blank != t["T_MEMMAP"][mt[1] * maplength + mt[2]]
+             if t != world_db["Things"][0] or
+                (world_db["ThingTypes"][mt[0]]["TT_TOOL"] == "food" and
+                 world_db["ThingTypes"][mt[0]]["TT_TOOLPOWER"] > eat_cost)]
         elif "s" == filter:
             zero_score_map_where_char_on_memdepthmap(mem_depth_c[0])
+        if "f" == filter:
+            [set_map_score_at_thingpos(id, 65535)
+             for id in world_db["Things"]
+             if animate_in_fov(world_db["Things"][id], maplength)
+             if get_map_score(world_db["Things"][id]["T_POSY"] * maplength
+                              + world_db["Things"][id]["T_POSX"])]
+        elif "a" != filter:
+            [set_map_score_at_thingpos(id, 65535)
+             for id in world_db["Things"]
+             if animate_in_fov(world_db["Things"][id], maplength)]
 
     def rand_target_dir(neighbors, cmp, dirs):
         candidates = []
@@ -891,19 +1329,6 @@ def get_dir_to_target(t, filter):
         dirs = "edcxsw"
         eye_pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
         neighbors = get_neighbor_scores(dirs, eye_pos)
-        if "f" == filter:
-            inhabited = [world_db["Things"][id]["T_POSY"]
-                         * world_db["MAP_LENGTH"]
-                         + world_db["Things"][id]["T_POSX"]
-                         for id in world_db["Things"]
-                         if world_db["Things"][id]["T_LIFEPOINTS"]]
-            for i in range(len(dirs)):
-                mv_yx_in_dir_legal(dirs[i], t["T_POSY"], t["T_POSX"])
-                pos_cmp = libpr.result_y() * world_db["MAP_LENGTH"] \
-                          + libpr.result_x()
-                for pos in [pos for pos in inhabited if pos == pos_cmp]:
-                    neighbors[i] = 65535
-                    break
         minmax_start = 0 if "f" == filter else 65535 - 1
         minmax_neighbor = minmax_start
         for i in range(len(dirs)):
@@ -914,19 +1339,23 @@ def get_dir_to_target(t, filter):
         if minmax_neighbor != minmax_start:
             dir_to_target = rand_target_dir(neighbors, minmax_neighbor, dirs)
         if "f" == filter:
+            distance = get_map_score(eye_pos)
+            fear_distance = world_db["MAP_LENGTH"]
+            if t["T_SATIATION"] < 0 and math.sqrt(-t["T_SATIATION"]) > 0:
+                fear_distance = fear_distance / math.sqrt(-t["T_SATIATION"])
+            attack_distance = 1
             if not dir_to_target:
-                if 1 == get_map_score(eye_pos):
-                    dir_to_target = rand_target_dir(neighbors, 0, dirs)
-                elif 3 >= get_map_score(eye_pos):
+                if attack_distance >= distance:
+                    dir_to_target = rand_target_dir(neighbors,
+                                                    distance - 1, dirs)
+                elif fear_distance >= distance:
                     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
                                       if
                                       world_db["ThingActions"][id]["TA_NAME"]
                                          == "wait"][0]
                     return 1
-            elif dir_to_target and 3 < get_map_score(eye_pos):
+            elif dir_to_target and fear_distance < distance:
                 dir_to_target = 0
-        elif "a" == filter and 10 <= get_map_score(eye_pos):
-            dir_to_target = 0
         return dir_to_target
 
     dir_to_target = False
@@ -949,65 +1378,80 @@ def get_dir_to_target(t, filter):
     return dir_to_target
 
 
-def standing_on_consumable(t):
-    """Return True/False whether t is standing on a consumable."""
+def standing_on_food(t):
+    """Return True/False whether t is standing on healthy consumable."""
+    eat_cost = eat_vs_hunger_threshold(t["T_TYPE"])
     for id in [id for id in world_db["Things"] if world_db["Things"][id] != t
+               if not world_db["Things"][id]["carried"]
                if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
                if world_db["Things"][id]["T_POSX"] == t["T_POSX"]
                if world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
-                          ["TT_CONSUMABLE"]]:
+                  ["TT_TOOL"] == "food"
+               if world_db["ThingTypes"][world_db["Things"][id]["T_TYPE"]]
+                  ["TT_TOOLPOWER"] > eat_cost]:
         return True
     return False
 
 
 def get_inventory_slot_to_consume(t):
-    """Return slot Id of strongest consumable in t's inventory, else -1."""
-    cmp_consumability = 0
+    """Return invent. slot of healthiest consumable(if any healthy),else -1."""
+    cmp_food = -1
     selection = -1
     i = 0
+    eat_cost = eat_vs_hunger_threshold(t["T_TYPE"])
     for id in t["T_CARRIES"]:
         type = world_db["Things"][id]["T_TYPE"]
-        if world_db["ThingTypes"][type]["TT_CONSUMABLE"] > cmp_consumability:
-            cmp_consumability = world_db["ThingTypes"][type]["TT_CONSUMABLE"]
-            selection = i
+        if world_db["ThingTypes"][type]["TT_TOOL"] == "food" \
+           and world_db["ThingTypes"][type]["TT_TOOLPOWER"]:
+            nutvalue = world_db["ThingTypes"][type]["TT_TOOLPOWER"]
+            tmp_cmp = abs(t["T_SATIATION"] + nutvalue - eat_cost)
+            if (cmp_food < 0 and tmp_cmp < abs(t["T_SATIATION"])) \
+            or tmp_cmp < cmp_food:
+                cmp_food = tmp_cmp
+                selection = i
         i += 1
     return selection
 
 
 def ai(t):
-    """Determine next command/argment for actor t via AI algorithms.
-
-    AI will look for, and move towards, enemies (animate Things not of their
-    own ThingType); if they see none, they will consume consumables in their
-    inventory; if there are none, they will pick up what they stand on if they
-    stand on consumables; if they stand on none, they will move towards the
-    next consumable they see or remember on the map; if they see or remember
-    none, they will explore parts of the map unseen since ever or for at least
-    one turn; if there is nothing to explore, they will simply wait.
-    """
+    """Determine next command/argment for actor t via AI algorithms."""
+    # 7DRL add: Don't pick up or search things when inventory is full.
     t["T_COMMAND"] = [id for id in world_db["ThingActions"]
                       if world_db["ThingActions"][id]["TA_NAME"] == "wait"][0]
-    if not get_dir_to_target(t, "f"):
-        sel = get_inventory_slot_to_consume(t)
-        if -1 != sel:
-            t["T_COMMAND"] = [id for id in world_db["ThingActions"]
-                              if world_db["ThingActions"][id]["TA_NAME"]
-                                 == "use"][0]
-            t["T_ARGUMENT"] = sel
-        elif standing_on_consumable(t):
+    if get_dir_to_target(t, "f"):
+        return
+    sel = get_inventory_slot_to_consume(t)
+    if -1 != sel:
+        t["T_COMMAND"] = [id for id in world_db["ThingActions"]
+                          if world_db["ThingActions"][id]["TA_NAME"]
+                             == "use"][0]
+        t["T_ARGUMENT"] = sel
+    elif standing_on_food(t):
+        if  (len(t["T_CARRIES"]) <  # #
+             world_db["ThingTypes"][t["T_TYPE"]]["TT_STORAGE"]):  # #
             t["T_COMMAND"] = [id for id in world_db["ThingActions"]
-                              if world_db["ThingActions"][id]["TA_NAME"]
+                                 if world_db["ThingActions"][id]["TA_NAME"]
                                  == "pick_up"][0]
-        elif (not get_dir_to_target(t, "c")) and \
-             (not get_dir_to_target(t, "a")):
-            get_dir_to_target(t, "s")
+    else:
+        going_to_known_food_spot = get_dir_to_target(t, "c")
+        if not going_to_known_food_spot:
+            aiming_for_walking_food = get_dir_to_target(t, "a")
+            if not aiming_for_walking_food:
+                get_dir_to_target(t, "s")
 
 
 def turn_over():
     """Run game world and its inhabitants until new player input expected."""
+    # 7DRL: effort of move action is TA_EFFORT / sqrt(TT_LIFEPOINTS)
     id = 0
     whilebreaker = False
     while world_db["Things"][0]["T_LIFEPOINTS"]:
+        proliferable_map = world_db["MAP"][:]
+        for id in [id for id in world_db["Things"]
+                   if not world_db["Things"][id]["carried"]]:
+            y = world_db["Things"][id]["T_POSY"]
+            x = world_db["Things"][id]["T_POSX"]
+            proliferable_map[y * world_db["MAP_LENGTH"] + x] = ord("X")
         for id in [id for id in world_db["Things"]]:  # Only what's from start!
             if not id in world_db["Things"] or \
                world_db["Things"][id]["carried"]:   # May have been consumed or
@@ -1021,16 +1465,24 @@ def turn_over():
                         break
                     ai(Thing)
                 try_healing(Thing)
-                Thing["T_PROGRESS"] += 1
-                taid = [a for a in world_db["ThingActions"]
-                          if a == Thing["T_COMMAND"]][0]
-                ThingAction = world_db["ThingActions"][taid]
-                if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
-                    eval("actor_" + ThingAction["TA_NAME"])(Thing)
-                    Thing["T_COMMAND"] = 0
-                    Thing["T_PROGRESS"] = 0
                 hunger(Thing)
-            thingproliferation(Thing)
+                if Thing["T_LIFEPOINTS"]:
+                    Thing["T_PROGRESS"] += 1
+                    taid = [a for a in world_db["ThingActions"]
+                              if a == Thing["T_COMMAND"]][0]
+                    ThingAction = world_db["ThingActions"][taid]
+                    #if Thing["T_PROGRESS"] == ThingAction["TA_EFFORT"]:
+                    effort = ThingAction["TA_EFFORT"]  # #
+                    if ThingAction["TA_NAME"] == "move":  # #
+                        type = Thing["T_TYPE"]  # #
+                        max_hp = (world_db["ThingTypes"][type]  # #
+                                 ["TT_LIFEPOINTS"])  # #
+                        effort = int(effort / math.sqrt(max_hp))  # #
+                    if Thing["T_PROGRESS"] == effort:  # #
+                        eval("actor_" + ThingAction["TA_NAME"])(Thing)
+                        Thing["T_COMMAND"] = 0
+                        Thing["T_PROGRESS"] = 0
+            thingproliferation(Thing, proliferable_map)
         if whilebreaker:
             break
         world_db["TURN"] += 1
@@ -1044,6 +1496,7 @@ def new_Thing(type, pos=(0, 0)):
         "T_PROGRESS": 0,
         "T_SATIATION": 0,
         "T_COMMAND": 0,
+        "T_PLAYERDROP": 0,  # #
         "T_TYPE": type,
         "T_POSY": pos[0],
         "T_POSX": pos[1],
@@ -1096,13 +1549,16 @@ def command_ping():
 
 def command_quit():
     """Abort server process."""
-    save_world()
-    atomic_write(io_db["path_record"], io_db["record_chunk"], do_append=True)
+    if None == opts.replay:
+        if world_db["WORLD_ACTIVE"]:
+            save_world()
+        atomic_write(io_db["path_record"], io_db["record_chunk"], do_append=True)
     raise SystemExit("received QUIT command")
 
 
 def command_thingshere(str_y, str_x):
     """Write to out file list of Things known to player at coordinate y, x."""
+    # 7DRL: terrain, too
     if world_db["WORLD_ACTIVE"]:
         y = integer_test(str_y, 0, 255)
         x = integer_test(str_x, 0, 255)
@@ -1110,19 +1566,38 @@ def command_thingshere(str_y, str_x):
         if None != y and None != x and y < length and x < length:
             pos = (y * world_db["MAP_LENGTH"]) + x
             strong_write(io_db["file_out"], "THINGS_HERE START\n")
+            pos = y * world_db["MAP_LENGTH"] + x;  # #
             if "v" == chr(world_db["Things"][0]["fovmap"][pos]):
-                for id in world_db["Things"]:
-                    if y == world_db["Things"][id]["T_POSY"] \
-                       and x == world_db["Things"][id]["T_POSX"] \
-                       and not world_db["Things"][id]["carried"]:
-                        type = world_db["Things"][id]["T_TYPE"]
-                        name = world_db["ThingTypes"][type]["TT_NAME"]
-                        strong_write(io_db["file_out"], name + "\n")
+                for id in [id for tid in sorted(list(world_db["ThingTypes"]))
+                              for id in world_db["Things"]
+                              if not world_db["Things"][id]["carried"]
+                              if world_db["Things"][id]["T_TYPE"] == tid
+                              if y == world_db["Things"][id]["T_POSY"]
+                              if x == world_db["Things"][id]["T_POSX"]]:
+                    type = world_db["Things"][id]["T_TYPE"]
+                    name = world_db["ThingTypes"][type]["TT_NAME"]
+                    strong_write(io_db["file_out"], name + "\n")
             else:
-                for mt in world_db["Things"][0]["T_MEMTHING"]:
-                    if y == mt[1] and x == mt[2]:
-                        name = world_db["ThingTypes"][mt[0]]["TT_NAME"]
-                        strong_write(io_db["file_out"], name + "\n")
+                for mt in [mt for tid in sorted(list(world_db["ThingTypes"]))
+                              for mt in world_db["Things"][0]["T_MEMTHING"]
+                              if mt[0] == tid if y == mt[1] if x == mt[2]]:
+                    name = world_db["ThingTypes"][mt[0]]["TT_NAME"]
+                    strong_write(io_db["file_out"], name + "\n")
+            if world_db["Things"][0]["T_MEMMAP"][pos] == ord("~"):  # #
+                name = "(terrain: SEA)"  # #
+            elif world_db["Things"][0]["T_MEMMAP"][pos] == ord("."):  # #
+                name = "(terrain: EARTH)"  # #
+            elif world_db["Things"][0]["T_MEMMAP"][pos] == ord(":"):  # #
+                name = "(terrain: SOIL)"  # #
+            elif world_db["Things"][0]["T_MEMMAP"][pos] == ord("X"):  # #
+                name = "(terrain: TREE)"  # #
+            elif world_db["Things"][0]["T_MEMMAP"][pos] == ord("|"):  # #
+                name = "(terrain: WALL)"  # #
+            elif world_db["Things"][0]["T_MEMMAP"][pos] == ord("_"):  # #
+                name = "(terrain: ALTAR)"  # #
+            else:  # #
+                name = "(?)"  # #
+            strong_write(io_db["file_out"], name + "\n")  # #
             strong_write(io_db["file_out"], "THINGS_HERE END\n")
         else:
             print("Ignoring: Invalid map coordinates.")
@@ -1137,6 +1612,105 @@ def play_commander(action, args=False):
     """
 
     def set_command():
+
+        if action == "drop":
+            t = world_db["Things"][0]
+            if 0 == len(t["T_CARRIES"]):
+                log("You have NOTHING to drop in your inventory.")
+                return
+
+        elif action == "pick_up":
+            t = world_db["Things"][0]
+            ids = [id for id in world_db["Things"] if id
+                   if not world_db["Things"][id]["carried"]
+                   if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
+                   if world_db["Things"][id]["T_POSX"] == t["T_POSX"]]
+            if not len(ids):
+                log("NOTHING to pick up.")
+                return
+            used_slots = len(t["T_CARRIES"]) # #
+            if used_slots >= world_db["ThingTypes"][t["T_TYPE"]] \
+                ["TT_STORAGE"]: # #
+                log("CAN'T pick up: No storage room to carry anything more.")
+                return
+
+        elif action == "move":
+            t = world_db["Things"][0]
+            passable = False
+            move_result = mv_yx_in_dir_legal(chr(t["T_ARGUMENT"]),
+                                             t["T_POSY"], t["T_POSX"])
+            if 1 == move_result[0]:
+                pos = (move_result[1] * world_db["MAP_LENGTH"]) + move_result[2]
+                if ord("~") == world_db["MAP"][pos]:
+                    log("You can't SWIM.")
+                    return
+                if (ord("X") == world_db["MAP"][pos]  # #
+                    or ord("|") == world_db["MAP"][pos]):  # #
+                    carries_axe = False  # #
+                    for id in t["T_CARRIES"]:  # #
+                        type = world_db["Things"][id]["T_TYPE"]  # #
+                        if world_db["ThingTypes"][type]["TT_TOOL"] == "axe":  # #
+                            carries_axe = True  # #
+                            break  # #
+                    if not carries_axe:  # #
+                        log("You CAN'T move there.")
+                        return
+            else:
+                log("You CAN'T move there.")
+                return
+
+        elif action == "use":
+            t = world_db["Things"][0]
+            if len(t["T_CARRIES"]):
+                id = t["T_CARRIES"][t["T_ARGUMENT"]]
+                type = world_db["Things"][id]["T_TYPE"]
+                if world_db["ThingTypes"][type]["TT_TOOL"] == "axe":
+                    log("To use this item for chopping, move towards a tree "
+                         + "while carrying it in your inventory.")
+                    return
+                elif world_db["ThingTypes"][type]["TT_TOOL"] == "carpentry":
+                    pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
+                    if (world_db["MAP"][pos] == ord("X")  # #
+                        or world_db["MAP"][pos] == ord("|")):  # #
+                        log("CAN'T build when standing on barrier.")  # #
+                        return
+                    for id in [id for id in world_db["Things"]
+                               if not world_db["Things"][id] == t
+                               if not world_db["Things"][id]["carried"]
+                               if world_db["Things"][id]["T_POSY"] == t["T_POSY"]
+                               if world_db["Things"][id]["T_POSX"] ==t["T_POSX"]]:
+                         log("CAN'T build when standing objects.")  # #
+                         return
+                    for id in t["T_CARRIES"]:  # #
+                        type_tool = world_db["Things"][id]["T_TYPE"]  # #
+                        if (world_db["ThingTypes"][type_tool]["TT_TOOL"]  # #
+                            == "carpentry"):  # #
+                            break  # #
+                    wood_id = None  # #
+                    for id in t["T_CARRIES"]:  # #
+                        type_material = world_db["Things"][id]["T_TYPE"]  # #
+                        if (world_db["ThingTypes"][type_material]["TT_TOOL"]  # #
+                            == "wood"):  # #
+                            wood_id = id  # #
+                            break  # #
+                    if wood_id == None:  # #
+                        log("You CAN'T use a "  # #
+                            + world_db["ThingTypes"][type_tool]["TT_NAME"]  # #
+                            + " without some wood in your inventory.")  # #
+                        return
+                elif world_db["ThingTypes"][type]["TT_TOOL"] == "fertilizer":  # #
+                    pos = t["T_POSY"] * world_db["MAP_LENGTH"] + t["T_POSX"]
+                    if not world_db["MAP"][pos] == ord("."):
+                        log("Can only make soil out of NON-SOIL earth.")
+                        return
+                elif world_db["ThingTypes"][type]["TT_TOOL"] == "wood":  # #
+                        log("To use wood, you NEED a carpentry tool.")  # #
+                        return
+            else:
+                log("You have NOTHING to use in your inventory.")
+                return
+
+
         id = [x for x in world_db["ThingActions"]
                 if world_db["ThingActions"][x]["TA_NAME"] == action][0]
         world_db["Things"][0]["T_COMMAND"] = id
@@ -1170,32 +1744,31 @@ def command_seedrandomness(seed_string):
         rand.seed = val
 
 
-def command_seedmap(seed_string):
-    """Set world_db["SEED_MAP"] to int(seed_string), then (re-)make map."""
-    setter(None, "SEED_MAP", 0, 4294967295)(seed_string)
-    remake_map()
-
-
 def command_makeworld(seed_string):
     """(Re-)build game world, i.e. map, things, to a new turn 1 from seed.
 
-    Seed rand with seed, fill it into world_db["SEED_MAP"]. Do more only with a
-    "wait" ThingAction and world["PLAYER_TYPE"] matching ThingType of
-    TT_START_NUMBER > 0. Then, world_db["Things"] emptied, call remake_map()
-    and set world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
+    Seed rand with seed. Do more only with a "wait" ThingAction and
+    world["PLAYER_TYPE"] matching ThingType of TT_START_NUMBER > 0. Then,
+    world_db["Things"] emptied, call make_map() and set
+    world_db["WORLD_ACTIVE"], world_db["TURN"] to 1. Build new Things
     according to ThingTypes' TT_START_NUMBERS, with Thing of ID 0 to ThingType
     of ID = world["PLAYER_TYPE"]. Place Things randomly, and actors not on each
     other. Init player's memory map. Write "NEW_WORLD" line to out file.
+    Call log_help().
     """
 
-    def free_pos():
+    # def free_pos(plant=False):
+    def free_pos(plant=False):  # #
         i = 0
         while 1:
             err = "Space to put thing on too hard to find. Map too small?"
             while 1:
                 y = rand.next() % world_db["MAP_LENGTH"]
                 x = rand.next() % world_db["MAP_LENGTH"]
-                if "." == chr(world_db["MAP"][y * world_db["MAP_LENGTH"] + x]):
+                pos = y * world_db["MAP_LENGTH"] + x;
+                if (not plant  # #
+                    and "." == chr(world_db["MAP"][pos])) \
+                   or ":" == chr(world_db["MAP"][pos]):  # #
                     break
                 i += 1
                 if i == 65535:
@@ -1213,7 +1786,6 @@ def command_makeworld(seed_string):
     if None == val:
         return
     rand.seed = val
-    world_db["SEED_MAP"] = val
     player_will_be_generated = False
     playertype = world_db["PLAYER_TYPE"]
     for ThingType in world_db["ThingTypes"]:
@@ -1222,31 +1794,38 @@ def command_makeworld(seed_string):
                 player_will_be_generated = True
             break
     if not player_will_be_generated:
-        print("Ignoring beyond SEED_MAP: " +
-              "No player type with start number >0 defined.")
+        print("Ignoring: No player type with start number >0 defined.")
         return
     wait_action = False
     for ThingAction in world_db["ThingActions"]:
         if "wait" == world_db["ThingActions"][ThingAction]["TA_NAME"]:
             wait_action = True
     if not wait_action:
-        print("Ignoring beyond SEED_MAP: " +
-              "No thing action with name 'wait' defined.")
+        print("Ignoring: No thing action with name 'wait' defined.")
         return
+    for name in specials:  # #
+        if world_db[name] not in world_db["ThingTypes"]:  # #
+            print("Ignoring: No valid " + name + " set.")  # #
+            return  # #
     world_db["Things"] = {}
-    remake_map()
+    make_map()
     world_db["WORLD_ACTIVE"] = 1
     world_db["TURN"] = 1
     for i in range(world_db["ThingTypes"][playertype]["TT_START_NUMBER"]):
         id = id_setter(-1, "Things")
         world_db["Things"][id] = new_Thing(playertype, free_pos())
+    if not world_db["Things"][0]["fovmap"]:
+        empty_fovmap = bytearray(b" " * world_db["MAP_LENGTH"] ** 2)
+        world_db["Things"][0]["fovmap"] = empty_fovmap
     update_map_memory(world_db["Things"][0])
     for type in world_db["ThingTypes"]:
         for i in range(world_db["ThingTypes"][type]["TT_START_NUMBER"]):
             if type != playertype:
                 id = id_setter(-1, "Things")
-                world_db["Things"][id] = new_Thing(type, free_pos())
+                plantness = world_db["ThingTypes"][type]["TT_PROLIFERATE"]  # #
+                world_db["Things"][id] = new_Thing(type, free_pos(plantness))
     strong_write(io_db["file_out"], "NEW_WORLD\n")
+    log_help()
 
 
 def command_maplength(maplength_string):
@@ -1254,6 +1833,7 @@ def command_maplength(maplength_string):
     val = integer_test(maplength_string, 1, 256)
     if None != val:
         world_db["MAP_LENGTH"] = val
+        world_db["MAP"] = False
         set_world_inactive()
         world_db["Things"] = {}
         libpr.set_maplength(val)
@@ -1263,12 +1843,13 @@ def command_worldactive(worldactive_string):
     """Toggle world_db["WORLD_ACTIVE"] if possible.
 
     An active world can always be set inactive. An inactive world can only be
-    set active with a "wait" ThingAction, and a player Thing (of ID 0). On
-    activation, rebuild all Things' FOVs, and the player's map memory.
+    set active with a "wait" ThingAction, and a player Thing (of ID 0), and a
+    map. On activation, rebuild all Things' FOVs, and the player's map memory.
+    Also call log_help().
     """
-    # In original version, map existence was also tested (unnecessarily?).
+    # 7DRL: altar must be on map, and specials must be set for active world.
     val = integer_test(worldactive_string, 0, 1)
-    if val:
+    if None != val:
         if 0 != world_db["WORLD_ACTIVE"]:
             if 0 == val:
                 set_world_inactive()
@@ -1285,13 +1866,45 @@ def command_worldactive(worldactive_string):
                 if 0 == Thing:
                     player_exists = True
                     break
-            if wait_exists and player_exists:
+            specials_set = True  # #
+            for name in specials:  # #
+                if world_db[name] not in world_db["ThingTypes"]:  # #
+                    specials_set = False  # #
+            altar_found = False  # #
+            if world_db["MAP"]:  # #
+                pos = world_db["MAP"].find(b'_')  # #
+                if pos > 0:  # #
+                    y = int(pos / world_db["MAP_LENGTH"])  # #
+                    x = pos % world_db["MAP_LENGTH"]  # #
+                    world_db["altar"] = (y, x)  # #
+                    altar_found = True  # #
+            if wait_exists and player_exists and world_db["MAP"] \
+               and specials_set:  # #
                 for id in world_db["Things"]:
                     if world_db["Things"][id]["T_LIFEPOINTS"]:
                         build_fov_map(world_db["Things"][id])
                         if 0 == id:
                             update_map_memory(world_db["Things"][id], False)
+                if not world_db["Things"][0]["T_LIFEPOINTS"]:
+                    empty_fovmap = bytearray(b" " * world_db["MAP_LENGTH"] ** 2)
+                    world_db["Things"][0]["fovmap"] = empty_fovmap
                 world_db["WORLD_ACTIVE"] = 1
+                log_help()
+            else:
+                print("Ignoring: Not all conditions for world activation met.")
+
+
+def specialtypesetter(name):  # #
+    """Setter world_db[name], deactivating world if set int no ThingType."""
+    def helper(str_int):
+        val = integer_test(str_int, 0)
+        if None != val:
+            world_db[name] = val
+            if world_db["WORLD_ACTIVE"] \
+               and world_db[name] not in world_db["ThingTypes"]:
+                world_db["WORLD_ACTIVE"] = 0
+                print(name + " fits no known ThingType, deactivating world.")
+    return helper
 
 
 def test_for_id_maker(object, category):
@@ -1387,12 +2000,12 @@ def command_tmemthing(str_t, str_y, str_x):
 
 
 def setter_map(maptype):
-    """Set selected Thing's map of maptype's int(str_int)-th line to mapline.
+    """Set (world or Thing's) map of maptype's int(str_int)-th line to mapline.
 
-    If Thing has no map of maptype yet, initialize it with ' ' bytes first.
+    If no map of maptype exists yet, initialize it with ' ' bytes first.
     """
-    @test_Thing_id
-    def helper(str_int, mapline):
+
+    def valid_map_line(str_int, mapline):
         val = integer_test(str_int, 0, 255)
         if None != val:
             if val >= world_db["MAP_LENGTH"]:
@@ -1400,15 +2013,35 @@ def setter_map(maptype):
             elif len(mapline) != world_db["MAP_LENGTH"]:
                 print("Map line length is unequal map width.")
             else:
-                length = world_db["MAP_LENGTH"]
-                map = None
-                if not world_db["Things"][command_tid.id][maptype]:
-                    map = bytearray(b' ' * (length ** 2))
-                else:
-                    map = world_db["Things"][command_tid.id][maptype]
-                map[val * length:(val * length) + length] = mapline.encode()
+                return val
+        return None
+
+    def nonThingMap_helper(str_int, mapline):
+        val = valid_map_line(str_int, mapline)
+        if None != val:
+            length = world_db["MAP_LENGTH"]
+            if not world_db["MAP"]:
+                map = bytearray(b' ' * (length ** 2))
+            else:
+                map = world_db["MAP"]
+            map[val * length:(val * length) + length] = mapline.encode()
+            if not world_db["MAP"]:
+                world_db["MAP"] = map
+
+    @test_Thing_id
+    def ThingMap_helper(str_int, mapline):
+        val = valid_map_line(str_int, mapline)
+        if None != val:
+            length = world_db["MAP_LENGTH"]
+            if not world_db["Things"][command_tid.id][maptype]:
+                map = bytearray(b' ' * (length ** 2))
+            else:
+                map = world_db["Things"][command_tid.id][maptype]
+            map[val * length:(val * length) + length] = mapline.encode()
+            if not world_db["Things"][command_tid.id][maptype]:
                 world_db["Things"][command_tid.id][maptype] = map
-    return helper
+
+    return nonThingMap_helper if maptype == "MAP" else ThingMap_helper
 
 
 def setter_tpos(axis):
@@ -1435,18 +2068,21 @@ def setter_tpos(axis):
 def command_ttid(id_string):
     """Set ID of ThingType to manipulate. ID unused? Create new one.
 
-    Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, others: 0.
+    Default new ThingType's TT_SYMBOL to "?", TT_CORPSE_ID to self, TT_TOOL to
+    "", others: 0.
     """
     id = id_setter(id_string, "ThingTypes", command_ttid)
     if None != id:
         world_db["ThingTypes"][id] = {
             "TT_NAME": "(none)",
-            "TT_CONSUMABLE": 0,
+            "TT_TOOLPOWER": 0,
             "TT_LIFEPOINTS": 0,
             "TT_PROLIFERATE": 0,
             "TT_START_NUMBER": 0,
+            "TT_STORAGE": 0, # #
             "TT_SYMBOL": "?",
-            "TT_CORPSE_ID": id
+            "TT_CORPSE_ID": id,
+            "TT_TOOL": ""
         }
 
 
@@ -1459,6 +2095,12 @@ def command_ttname(name):
     world_db["ThingTypes"][command_ttid.id]["TT_NAME"] = name
 
 
+@test_ThingType_id
+def command_tttool(name):
+    """Set TT_TOOL of selected ThingType."""
+    world_db["ThingTypes"][command_ttid.id]["TT_TOOL"] = name
+
+
 @test_ThingType_id
 def command_ttsymbol(char):
     """Set TT_SYMBOL of selected ThingType. """
@@ -1536,28 +2178,38 @@ commands_db = {
     "PING": (0, True, command_ping),
     "THINGS_HERE": (2, True, command_thingshere),
     "MAKE_WORLD": (1, False, command_makeworld),
-    "SEED_MAP": (1, False, command_seedmap),
     "SEED_RANDOMNESS": (1, False, command_seedrandomness),
     "TURN": (1, False, setter(None, "TURN", 0, 65535)),
-    "GOD_MOOD": (1, False, setter(None, "GOD_MOOD", -32768, 32767)), ##
-    "GOD_FAVOR": (1, False, setter(None, "GOD_FAVOR", -32768, 32767)), ##
+    "GOD_FAVOR": (1, False, setter(None, "GOD_FAVOR", -32768, 32767)),  # #
     "PLAYER_TYPE": (1, False, setter(None, "PLAYER_TYPE", 0)),
     "MAP_LENGTH": (1, False, command_maplength),
     "WORLD_ACTIVE": (1, False, command_worldactive),
+    "MAP": (2, False, setter_map("MAP")),
+    "FAVOR_STAGE": (1, False, setter(None, "FAVOR_STAGE", 0, 65535)),  # #
+    "SLIPPERS": (1, False, specialtypesetter("SLIPPERS")),  # #
+    "PLANT_0": (1, False, specialtypesetter("PLANT_0")),  # #
+    "PLANT_1": (1, False, specialtypesetter("PLANT_1")),  # #
+    "LUMBER": (1, False, specialtypesetter("LUMBER")),  # #
+    "TOOL_0": (1, False, specialtypesetter("TOOL_0")),  # #
+    "TOOL_1": (1, False, specialtypesetter("TOOL_1")),  # #
+    "ANIMAL_0": (1, False, specialtypesetter("ANIMAL_0")),  # #
+    "ANIMAL_1": (1, False, specialtypesetter("ANIMAL_1")),  # #
+    "EMPATHY": (1, False, setter(None, "EMPATHY", 0, 1)),  # #
     "TA_ID": (1, False, command_taid),
     "TA_EFFORT": (1, False, setter("ThingAction", "TA_EFFORT", 0, 255)),
     "TA_NAME": (1, False, command_taname),
     "TT_ID": (1, False, command_ttid),
     "TT_NAME": (1, False, command_ttname),
+    "TT_TOOL": (1, False, command_tttool),
     "TT_SYMBOL": (1, False, command_ttsymbol),
     "TT_CORPSE_ID": (1, False, command_ttcorpseid),
-    "TT_CONSUMABLE": (1, False, setter("ThingType", "TT_CONSUMABLE",
-                                       0, 65535)),
+    "TT_TOOLPOWER": (1, False, setter("ThingType", "TT_TOOLPOWER", 0, 65535)),
     "TT_START_NUMBER": (1, False, setter("ThingType", "TT_START_NUMBER",
                                          0, 255)),
     "TT_PROLIFERATE": (1, False, setter("ThingType", "TT_PROLIFERATE",
-                                        0, 255)),
+                                        0, 65535)),
     "TT_LIFEPOINTS": (1, False, setter("ThingType", "TT_LIFEPOINTS", 0, 255)),
+    "TT_STORAGE": (1, False, setter("ThingType", "TT_STORAGE", 0, 255)),  # #
     "T_ID": (1, False, command_tid),
     "T_ARGUMENT": (1, False, setter("Thing", "T_ARGUMENT", 0, 255)),
     "T_PROGRESS": (1, False, setter("Thing", "T_PROGRESS", 0, 255)),
@@ -1571,6 +2223,7 @@ commands_db = {
     "T_MEMTHING": (3, False, command_tmemthing),
     "T_POSY": (1, False, setter_tpos("Y")),
     "T_POSX": (1, False, setter_tpos("X")),
+    "T_PLAYERDROP": (1, False, setter("Thing", "T_PLAYERDROP", 0, 1)),  # #
     "wait": (0, False, play_commander("wait")),
     "move": (1, False, play_commander("move")),
     "pick_up": (0, False, play_commander("pick_up")),
@@ -1578,22 +2231,37 @@ commands_db = {
     "use": (1, False, play_commander("use", True)),
     "ai": (0, False, command_ai)
 }
+# TODO: Unhandled cases: (Un-)killing animates (esp. player!) with T_LIFEPOINTS.
 
 
 """World state database. With sane default values. (Randomness is in rand.)"""
 world_db = {
     "TURN": 0,
     "MAP_LENGTH": 64,
-    "SEED_MAP": 0,
     "PLAYER_TYPE": 0,
     "WORLD_ACTIVE": 0,
-    "GOD_MOOD": 0, ##
-    "GOD_FAVOR": 0, ##
+    "GOD_FAVOR": 0,  # #
+    "MAP": False,
+    "FAVOR_STAGE": 0,  # #
+    "SLIPPERS": 0,  # #
+    "PLANT_0": 0,  # #
+    "PLANT_1": 0,  # #
+    "ANIMAL_0": 0,  # #
+    "ANIMAL_1": 0,  # #
+    "LUMBER": 0,  # #
+    "TOOL_0": 0,  # #
+    "TOOL_1": 0,  # #
+    "EMPATHY": 0,  # #
     "ThingActions": {},
     "ThingTypes": {},
     "Things": {}
 }
 
+# 7DRL-specific!
+"""Special type settings."""
+specials = ["SLIPPERS", "PLANT_0", "PLANT_1", "LUMBER", "TOOL_0", "TOOL_1",
+            "ANIMAL_0", "ANIMAL_1"]
+
 """Mapping of direction names to internal direction chars."""
 directions_db = {"east": "d", "south-east": "c", "south-west": "x",
                  "west": "s", "north-west": "w", "north-east": "e"}