From: Christian Heller <c.heller@plomlompom.de>
Date: Thu, 26 Sep 2013 03:00:09 +0000 (+0200)
Subject: New animate map objects are never placed on a square with other animated map objects... 
X-Git-Tag: tce~947
X-Git-Url: https://plomlompom.com/repos/%7B%7Bdb.prefix%7D%7D/static/blog?a=commitdiff_plain;h=2c2521789dc5c8bb77eb36362d4244606f878420;p=plomrogue

New animate map objects are never placed on a square with other animated map objects; also fixed a bug that hindered compilation.
---

diff --git a/src/map_object_actions.c b/src/map_object_actions.c
index 3e9ead2..387b18a 100644
--- a/src/map_object_actions.c
+++ b/src/map_object_actions.c
@@ -15,7 +15,7 @@
  * reach zero in the process, killing it. Generates appropriate log message.
  */
 static void actor_hits_actor(struct World * world, struct MapObj * hitter,
-                             struct MapObj * hitted)
+                             struct MapObj * hitted);
 
 
 
diff --git a/src/map_objects.c b/src/map_objects.c
index e825755..93f4684 100644
--- a/src/map_objects.c
+++ b/src/map_objects.c
@@ -11,6 +11,7 @@
 #include "misc.h" /* for try_malloc(), try_calloc(), find_passable_pos() */
 #include "main.h" /* for World struct */
 #include "rexit.h" /* for err_exit() */
+#include "yx_uint16.h" /* for yx_uint16 struct, yx_uint16_cmp() */
 
 
 
@@ -109,7 +110,27 @@ extern void add_map_object(struct World * world, uint8_t type)
     world->map_obj_count++;
     mo->type = mod->id;
     mo->lifepoints = mod->lifepoints;
-    mo->pos = find_passable_pos(world->map);
+    while (1)
+    {
+        struct yx_uint16 pos = find_passable_pos(world->map);
+        struct MapObj * mo_ptr;
+        uint8_t clear = 1;
+        for (mo_ptr = world->map_objs;
+             mo_ptr != NULL;
+             mo_ptr = mo_ptr->next)
+        {
+            if (yx_uint16_cmp(&pos, &mo_ptr->pos) && 0 != mo_ptr->lifepoints)
+            {
+                clear = 0;
+                break;
+            }
+        }
+        if (1 == clear)
+        {
+            mo->pos = pos;
+            break;
+        }
+    }
     mo->next = NULL;
     if (NULL == world->last_map_obj)
     {
diff --git a/src/map_objects.h b/src/map_objects.h
index a56595f..5cbab7b 100644
--- a/src/map_objects.h
+++ b/src/map_objects.h
@@ -49,7 +49,10 @@ extern void free_map_object_defs(struct MapObjDef * mod_start);
 
 
 
-/* Add new object(s) ("n": how many?) of "type" to map on random position(s). */
+/* Add new object(s) ("n": how many?) of "type" to map on random position(s).
+ * New animate objects are never placed in the same square with other animated
+ * ones.
+ */
 extern void add_map_object(struct World * world, uint8_t type);
 extern void add_map_objects(struct World * world, uint8_t type, uint8_t n);