1 /* map_object_actions.c */
3 #include "map_object_actions.h"
4 #include <stdlib.h> /* for malloc(), calloc(), free() */
5 #include <string.h> /* for strlen() */
6 #include "yx_uint16.h" /* for yx_uint16 struct, mv_yx_in_dir(), yx_uint16_cmp */
7 #include "misc.h" /* for update_log(), turn_over()*/
8 #include "map.h" /* for Map struct */
9 #include "main.h" /* for World struct */
10 #include "map_objects.h" /* for map object (definition) structs */
11 #include "rrand.h" /* for rrand() */
15 /* Log monster bumping into monster. */
16 static void monster_bumps_monster(struct World * world, char * desc_monster1,
17 struct Monster * monster2);
19 /* Decrement player HPs due to attack of monster, kill him if necessary and log
22 static void monster_hits_player(struct World * world, char * desc_monster);
26 static void monster_bumps_monster(struct World * world, char * desc_monster1,
27 struct Monster * monster2)
29 char * bumpdesc = " bumps into ";
30 struct MapObjDef * mod = get_map_obj_def(world, monster2->map_obj.type);
31 char * msg = malloc(strlen(desc_monster1) + strlen(bumpdesc)
32 + strlen(mod->desc) + 3);
33 sprintf(msg, "\n%s%s%s.", desc_monster1, bumpdesc, mod->desc);
34 update_log(world, msg);
40 static void monster_hits_player(struct World * world, char * desc_monster)
42 char * hitdesc = " hits you.";
43 char * msg = malloc(strlen(desc_monster) + strlen(hitdesc) + 2);
44 sprintf(msg, "\n%s%s", desc_monster, hitdesc);
45 update_log(world, msg);
47 world->player->hitpoints--;
48 if (0 == world->player->hitpoints)
50 update_log(world, "\nYou are dead.");
56 extern void move_monster(struct World * world, struct Monster * monster)
59 struct yx_uint16 t = mv_yx_in_dir(d, monster->map_obj.pos);
60 struct MapObjDef * mod = get_map_obj_def(world, monster->map_obj.type);
61 char * desc = mod->desc;
62 if (yx_uint16_cmp(&t, &world->player->pos))
64 monster_hits_player(world, desc);
67 struct Monster * other_monster;
68 for (other_monster = world->monster;
70 other_monster = other_monster->map_obj.next)
72 if (other_monster == monster)
76 if (yx_uint16_cmp(&t, &other_monster->map_obj.pos))
78 monster_bumps_monster(world, desc, other_monster);
82 if (is_passable(world->map, t))
84 monster->map_obj.pos = t;
90 extern void move_player (struct World * world, enum dir d)
92 struct yx_uint16 t = mv_yx_in_dir(d, world->player->pos);
93 struct Monster * monster;
94 struct MapObjDef * mod;
95 char * msg = calloc(100, sizeof(char));
97 for (monster = world->monster;
99 monster = monster->map_obj.next)
101 if (yx_uint16_cmp(&t, &monster->map_obj.pos))
103 mod = get_map_obj_def(world, monster->map_obj.type);
105 sprintf(msg, "\nYou hit the %s.", desc);
106 update_log(world, msg);
107 monster->hitpoints--;
108 if (0 == monster->hitpoints)
110 sprintf(msg, "\nYou kill the %s.", desc);
111 update_log(world, msg);
112 if (world->monster == monster)
114 world->monster = world->monster->map_obj.next;
118 struct Monster * m_prev;
119 for (m_prev = world->monster;
120 m_prev->map_obj.next != monster;
121 m_prev = m_prev->map_obj.next);
122 m_prev->map_obj.next = monster->map_obj.next;
130 char * msg_content = "You fail to move";
148 if (is_passable(world->map, t))
150 msg_content = "You move";
151 world->player->pos = t;
153 sprintf(msg, "\n%s %s.", msg_content, dir);
154 update_log(world, msg);
161 extern void player_wait (struct World * world)
163 update_log(world, "\nYou wait.");
169 extern char is_passable (struct Map * map, struct yx_uint16 pos)
172 if (0 <= pos.x && pos.x < map->size.x && 0 <= pos.y && pos.y < map->size.y)
174 if ('.' == map->cells[pos.y * map->size.x + pos.x])