X-Git-Url: https://plomlompom.com/repos/feed.xml?a=blobdiff_plain;f=src%2Fmap_object_actions.c;h=9d1721e936fab21bd8e6c3634812f409e9adb6e9;hb=42f6cd9789e06f0257a078a33fa13aaea0714fce;hp=c9bdea3343d225039670b543001bb79f27277c5e;hpb=a037841b38d73f59839731eb3ffaf4edc43d9cf0;p=plomrogue

diff --git a/src/map_object_actions.c b/src/map_object_actions.c
index c9bdea3..9d1721e 100644
--- a/src/map_object_actions.c
+++ b/src/map_object_actions.c
@@ -1,89 +1,252 @@
+/* map_object_actions.c */
+
 #include "map_object_actions.h"
-#include <stdlib.h>
-#include "yx_uint16.h"
-#include "misc.h"
-#include "map.h"
-#include "main.h"
-#include "map_objects.h"
-
-extern char is_passable (struct Map * map, struct yx_uint16 pos) {
-// Check if coordinate on (or beyond) map is accessible to actor movement.
-  char passable = 0;
-  if (0 <= pos.x && pos.x < map->size.x && 0 <= pos.y && pos.y < map->size.y)
-    if ('.' == map->cells[pos.y * map->size.x + pos.x])
-      passable = 1;
-  return passable; }
-
-extern void move_monster (struct World * world, struct Monster * monster) {
-// Move monster in random direction, trigger fighting when hindered by player/monster.
-  char d = rrand(0, 0) % 5;
-  struct yx_uint16 t = mv_yx_in_dir (d, monster->map_obj.pos);
-  char * msg = malloc(100);
-  struct MapObjDef * mod = get_map_obj_def (world, monster->map_obj.type);
-  char * desc = mod->desc;
-  char * desc_other;
-  if (yx_uint16_cmp (t, world->player->pos)) {
-    sprintf(msg, "\nThe %s hits you.", desc);
-    update_log (world, msg);
-    world->player->hitpoints--;
-    if (0 == world->player->hitpoints)
-      update_log (world, "\nYou are dead.");
-    return; }
-  struct Monster * other_monster;
-  for (other_monster = world->monster; other_monster != 0; other_monster = other_monster->map_obj.next) {
-    if (other_monster == monster)
-      continue;
-    if (yx_uint16_cmp (t, other_monster->map_obj.pos)) {
-      mod = get_map_obj_def (world, monster->map_obj.type);
-      desc_other = mod->desc;
-      sprintf(msg, "\n%s bumps into %s.", desc, desc_other);
-      update_log (world, msg);
-      return; } }
-  free (msg);
-  if (is_passable(world->map, t))
-    monster->map_obj.pos = t; }
-
-extern void move_player (struct World * world, enum dir d) {
-// Move player in direction d, update log and turn over to the enemy.
-  struct yx_uint16 t = mv_yx_in_dir (d, world->player->pos);
-  struct Monster * monster;
-  struct MapObjDef * mod;
-  char * msg = calloc(100, sizeof(char));
-  char * desc;
-  for (monster = world->monster; monster != 0; monster = monster->map_obj.next)
-    if (yx_uint16_cmp (t, monster->map_obj.pos)) {
-      mod = get_map_obj_def (world, monster->map_obj.type);
-      desc = mod->desc;
-      sprintf (msg, "\nYou hit the %s.", desc);
-      update_log (world, msg);
-      monster->hitpoints--;
-      if (0 == monster->hitpoints) {
-        sprintf (msg, "\nYou kill the %s.", desc);
-        update_log (world, msg);
-        if (world->monster == monster)
-          world->monster = world->monster->map_obj.next;
-        else {
-          struct Monster * m_prev;
-          for (m_prev = world->monster; m_prev->map_obj.next != monster; m_prev = m_prev->map_obj.next);
-          m_prev->map_obj.next = monster->map_obj.next; }
-        free(monster); }
-      turn_over (world, d);
-      return; }
-  char * msg_content = "You fail to move";
-  char * dir;
-  if      (NORTH == d) dir = "north";
-  else if (EAST  == d) dir = "east" ;
-  else if (SOUTH == d) dir = "south";
-  else if (WEST  == d) dir = "west" ;
-  if (is_passable(world->map, t)) {
-    msg_content = "You move";
-    world->player->pos = t; }
-  sprintf(msg, "\n%s %s.", msg_content, dir);
-  update_log (world, msg);
-  free(msg);
-  turn_over (world, d); }
-
-extern void player_wait (struct World * world) {
-// Make player wait one turn.
-  update_log (world, "\nYou wait.");
-  turn_over (world, 0); }
+#include <string.h> /* for strlen() */
+#include "yx_uint16.h" /* for yx_uint16 struct, mv_yx_in_dir(),
+                        * yx_uint16_cmp()
+                        */
+#include "map_objects.h" /* for MapObj, MapObjDef structs, get_player(),
+                          * set_object_position(), own_map_object()
+                          */
+#include "misc.h" /* for update_log(), turn_over() */
+#include "map.h" /* for Map struct */
+#include "main.h" /* for world global */
+#include "command_db.h" /* for get_command_id() */
+
+
+
+/* One actor "wounds" another actor, decrementing his lifepoints and, if they
+ * reach zero in the process, killing it. Generates appropriate log message.
+ */
+static void actor_hits_actor(struct MapObj * hitter, struct MapObj * hitted);
+
+
+
+static void actor_hits_actor(struct MapObj * hitter, struct MapObj * hitted)
+{
+    struct MapObjDef * mod_hitter = get_map_object_def(hitter->type);
+    struct MapObjDef * mod_hitted = get_map_object_def(hitted->type);
+    struct MapObj * player = get_player();
+    char * msg1 = "You";
+    char * msg2 = "wound";
+    char * msg3 = "you";
+    if      (player != hitter)
+    {
+        msg1 = mod_hitter->name;
+        msg2 = "wounds";
+    }
+    if (player != hitted)
+    {
+        msg3 = mod_hitted->name;
+    }
+    uint8_t len = 1 + strlen(msg1) + 1 + strlen(msg2) + 1 + strlen(msg3) + 2;
+    char msg[len];
+    sprintf(msg, "\n%s %s %s.", msg1, msg2, msg3);
+    update_log(msg);
+    hitted->lifepoints--;
+    if (0 == hitted->lifepoints)
+    {
+        hitted->type = mod_hitted->corpse_id;
+        if (player == hitted)
+        {
+            update_log(" You die.");
+        }
+        else
+        {
+            update_log(" It dies.");
+            if (player == hitter)
+            {
+                world.score = world.score + mod_hitted->lifepoints;
+            }
+        }
+    }
+}
+
+
+
+extern uint8_t move_actor(struct MapObj * actor, char d)
+{
+    struct yx_uint16 target = mv_yx_in_dir(d, actor->pos);
+    struct MapObj * other_actor;
+    for (other_actor = world.map_objs;
+         other_actor != 0;
+         other_actor = other_actor->next)
+    {
+        if (0 == other_actor->lifepoints || other_actor == actor)
+        {
+            continue;
+        }
+        if (yx_uint16_cmp(&target, &other_actor->pos))
+        {
+            actor_hits_actor(actor, other_actor);
+            return 2;
+        }
+    }
+    if (is_passable(world.map, target))
+    {
+        set_object_position(actor, target);
+        return 0;
+    }
+    return 1;
+}
+
+
+
+extern void move_player(char d)
+{
+    char * dsc_dir;
+    char * action_dsc_prototype = "player_";
+    uint8_t len_action_dsc_prototype = strlen(action_dsc_prototype);
+    char action_dsc[len_action_dsc_prototype + 2];
+    memcpy(action_dsc, action_dsc_prototype, len_action_dsc_prototype);
+    if      ('N' == d)
+    {
+        dsc_dir = "north";
+        action_dsc[len_action_dsc_prototype] = 'u';
+    }
+    else if ('E' == d)
+    {
+        dsc_dir = "east" ;
+        action_dsc[len_action_dsc_prototype] = 'r';
+    }
+    else if ('S' == d)
+    {
+        dsc_dir = "south";
+        action_dsc[len_action_dsc_prototype] = 'd';
+    }
+    else if ('W' == d)
+    {
+        dsc_dir = "west" ;
+        action_dsc[len_action_dsc_prototype] = 'l';
+    }
+    action_dsc[len_action_dsc_prototype + 1] = '\0';
+    uint8_t res = move_actor(get_player(), d);
+    if (1 >= res)
+    {
+        char * dsc_move = "You fail to move ";
+        if   (0 == res)
+        {
+            dsc_move = "You move ";
+        }
+        char msg[strlen(dsc_move) + strlen (dsc_dir) + 3];
+        sprintf(msg, "\n%s%s.", dsc_move, dsc_dir);
+        update_log(msg);
+    }
+    turn_over(get_command_id(action_dsc));
+}
+
+
+
+extern void player_wait()
+{
+    update_log("\nYou wait.");
+    turn_over(get_command_id("wait"));
+}
+
+
+
+extern char is_passable(struct Map * map, struct yx_uint16 pos)
+{
+    uint8_t passable = 0;
+    if (0 <= pos.x && pos.x < map->size.x && 0 <= pos.y && pos.y < map->size.y)
+    {
+        passable = (('.' == map->cells[pos.y * map->size.x + pos.x]));
+    }
+    return passable;
+}
+
+
+
+extern void player_drop()
+{
+    struct MapObj * player = get_player();
+    if (NULL == player->owns)
+    {
+        update_log("\nYou try to drop an object, but you own none.");
+        world.old_inventory_select = 0;
+    }
+    else
+    {
+        world.old_inventory_select = world.inventory_select;
+        struct MapObj * owned = player->owns;
+        uint8_t i = 0;
+        for (; i != world.inventory_select; i++, owned = owned->next);
+        if (0 < world.inventory_select)
+        {
+            world.inventory_select--;
+        }
+        own_map_object(&world.map_objs, &player->owns, owned->id);
+        update_log("\nYou drop an object.");
+    }
+    turn_over(get_command_id("drop"));
+}
+
+
+
+extern void player_pick()
+{
+    struct MapObj * player = get_player();
+    struct MapObj * picked;
+    for (picked = world.map_objs; NULL != picked; picked = picked->next)
+    {
+        if (picked != player && yx_uint16_cmp(&picked->pos, &player->pos))
+        {
+            break;
+        }
+    }
+    if (NULL == picked)
+    {
+        update_log("\nYou try to pick up an object, but there is none.");
+    }
+    else
+    {
+        own_map_object(&player->owns, &world.map_objs, picked->id);
+        set_object_position(picked, player->pos);
+        update_log("\nYou pick up an object.");
+    }
+    turn_over(get_command_id("pick"));
+}
+
+
+
+extern void player_use()
+{
+    struct MapObj * player = get_player();
+    if (NULL == player->owns)
+    {
+        update_log("\nYou try to use an object, but you own none.");
+        world.old_inventory_select = 0;
+    }
+    else
+    {
+        uint8_t i = 0;
+        struct MapObj * selected = player->owns;
+        for (; i != world.inventory_select; i++, selected = selected->next);
+        struct MapObjDef * mod = get_map_object_def(selected->type);
+        if (!strcmp("MAGIC MEAT", mod->name))
+        {
+            struct MapObj * next = selected->next;
+            free(selected);
+            if (0 < world.inventory_select)
+            {
+                world.old_inventory_select = world.inventory_select;
+                world.inventory_select--;
+                for (i = 0, selected = player->owns;
+                     i != world.inventory_select;
+                     i++, selected = selected->next);
+                selected->next = next;
+            }
+            else
+            {
+                player->owns = next;
+            }
+            player->lifepoints++;
+            update_log("\nYou consume MAGIC MEAT.");
+            }
+        else
+        {
+            update_log("\nYou try to use this object, but fail.");
+        }
+    }
+    turn_over(get_command_id("use"));
+}