+ struct ThingType * tt = get_thing_type(t->type);
+ if (tt->consumable > compare_consumability)
+ {
+ compare_consumability = tt->consumable;
+ selection = i;
+ }
+ }
+ return selection;
+}
+
+
+
+static uint8_t standing_on_consumable(struct Thing * t_standing)
+{
+ struct Thing * t = world.things;
+ for (; t != NULL; t = t->next)
+ {
+ if ( t_standing != t
+ && t->pos.y == t_standing->pos.y && t->pos.x == t_standing->pos.x)
+ {
+ struct ThingType * tt = get_thing_type(t->type);
+ if (tt->consumable)
+ {
+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+
+
+
+extern void ai(struct Thing * t)
+{
+ t->command = get_thing_action_id_by_name(s[S_CMD_WAIT]);
+ if (seeing_enemies(t))
+ {
+ char sel = t->fov_map ? get_dir_to_nearest_enemy(t) : 0;
+ if (0 != sel)
+ {
+ t->command = get_thing_action_id_by_name(s[S_CMD_MOVE]);
+ t->arg = sel;
+ }
+ }
+ else
+ {
+ int16_t sel = get_inventory_slot_to_consume(t);
+ if (-1 != sel)
+ {
+ t->command = get_thing_action_id_by_name(s[S_CMD_USE]);
+ t->arg = (uint8_t) sel;
+ }
+ else if (standing_on_consumable(t))
+ {
+ t->command = get_thing_action_id_by_name(s[S_CMD_PICKUP]);
+ }