/* map_object_actions.c */
#include "map_object_actions.h"
-#include <stdlib.h> /* for malloc(), calloc(), free() */
#include <string.h> /* for strlen() */
#include "yx_uint16.h" /* for yx_uint16 struct, mv_yx_in_dir(), yx_uint16_cmp */
-#include "misc.h" /* for update_log(), turn_over()*/
+#include "misc.h" /* for update_log(), turn_over() */
#include "map.h" /* for Map struct */
#include "main.h" /* for World struct */
-#include "map_objects.h" /* for map object (definition) structs */
+#include "map_objects.h" /* for structs MapObj, MapObjDef,
+ * get_map_object_def()
+ */
#include "rrand.h" /* for rrand() */
+#include "command_db.h" /* for get_command_id() */
-/* Log monster bumping into monster. */
-static void monster_bumps_monster(struct World * world, char * desc_monster1,
- struct Monster * monster2);
+/* Log monster (described by "dsc_monster1") bumping into "monster2". */
+static void monster_bumps_monster(struct World * world, char * dsc_monster1,
+ struct MapObj * monster2);
-/* Decrement player HPs due to attack of monster, kill him if necessary and log
- * the whole action.
+/* Decrement player HPs due to attack of monster described by "dsc_monster",
+ * kill player if his HP hit zero; log the whole action.
*/
-static void monster_hits_player(struct World * world, char * desc_monster);
+static void monster_hits_player(struct World * world, char * dsc_monster);
+/* Decrement HP of "monster" hit by player, kill it if its HP hit zero, create a
+ * corpse and increment player's score by the amount of hitpoints the monster
+ * started with; log the whole action.
+ */
+static void player_hits_monster(struct World * world, struct MapObj * monster);
+
+/* Try moving the player in direction "d" towards coordinate "target"; log
+ * success or failure of the whole action.
+ */
+static void try_player_move(struct World * world,
+ enum dir d, struct yx_uint16 target);
-static void monster_bumps_monster(struct World * world, char * desc_monster1,
- struct Monster * monster2)
+
+static void monster_bumps_monster(struct World * world, char * dsc_monster1,
+ struct MapObj * monster2)
{
- char * bumpdesc = " bumps into ";
- struct MapObjDef * mod = get_map_obj_def(world, monster2->map_obj.type);
- char * msg = malloc(strlen(desc_monster1) + strlen(bumpdesc)
- + strlen(mod->desc) + 3);
- sprintf(msg, "\n%s%s%s.", desc_monster1, bumpdesc, mod->desc);
+ char * bump_dsc = " bumps into ";
+ struct MapObjDef * mod = get_map_object_def(world, monster2->type);
+ char msg[strlen(dsc_monster1) + strlen(bump_dsc) + strlen(mod->name) + 3];
+ sprintf(msg, "\n%s%s%s.", dsc_monster1, bump_dsc, mod->name);
update_log(world, msg);
- free(msg);
}
-static void monster_hits_player(struct World * world, char * desc_monster)
+static void monster_hits_player(struct World * world, char * dsc_monster)
{
- char * hitdesc = " hits you.";
- char * msg = malloc(strlen(desc_monster) + strlen(hitdesc) + 2);
- sprintf(msg, "\n%s%s", desc_monster, hitdesc);
+ char * hit_dsc = " hits you";
+ char msg[strlen(dsc_monster) + strlen(hit_dsc) + 3];
+ sprintf(msg, "\n%s%s.", dsc_monster, hit_dsc);
update_log(world, msg);
- free(msg);
world->player->hitpoints--;
+
if (0 == world->player->hitpoints)
{
update_log(world, "\nYou are dead.");
-extern void move_monster(struct World * world, struct Monster * monster)
+static void player_hits_monster(struct World * world, struct MapObj * monster)
+{
+ struct MapObjDef * mod = get_map_object_def(world, monster->type);
+ char * hit_dsc = "You hit the ";
+ char * monster_dsc = mod->name;
+ char hitmsg[strlen(hit_dsc) + strlen(monster_dsc) + 3];
+ sprintf(hitmsg, "\n%s%s.", hit_dsc, monster_dsc);
+ update_log(world, hitmsg);
+ monster->lifepoints--;
+ if (0 == monster->lifepoints)
+ {
+ hit_dsc = "You kill the ";
+ char kill_msg[strlen(hit_dsc) + strlen(monster_dsc) + 3];
+ sprintf(kill_msg, "\n%s%s.", hit_dsc, monster_dsc);
+ update_log(world, kill_msg);
+ struct MapObjDef * md = mod;
+ monster->type = md->corpse_id;
+ uint8_t score = md->lifepoints;
+ world->score = world->score + score;
+ }
+}
+
+
+
+static void try_player_move(struct World * world,
+ enum dir d, struct yx_uint16 target)
+{
+ char * dsc_dir;
+ if (NORTH == d)
+ {
+ dsc_dir = "north";
+ }
+ else if (EAST == d)
+ {
+ dsc_dir = "east" ;
+ }
+ else if (SOUTH == d)
+ {
+ dsc_dir = "south";
+ }
+ else if (WEST == d)
+ {
+ dsc_dir = "west" ;
+ }
+ char * dsc_move = "You fail to move ";
+ if (is_passable(world->map, target))
+ {
+ dsc_move = "You move ";
+ world->player->pos = target;
+ }
+ char msg[strlen(dsc_move) + strlen (dsc_dir) + 3];
+ sprintf(msg, "\n%s%s.", dsc_move, dsc_dir);
+ update_log(world, msg);
+}
+
+
+
+extern void move_monster(struct World * world, struct MapObj * monster)
{
char d = rrand() % 5;
- struct yx_uint16 t = mv_yx_in_dir(d, monster->map_obj.pos);
- struct MapObjDef * mod = get_map_obj_def(world, monster->map_obj.type);
- char * desc = mod->desc;
+ struct yx_uint16 t = mv_yx_in_dir(d, monster->pos);
+ struct MapObjDef * mod = get_map_object_def(world, monster->type);
+ char * dsc = mod->name;
if (yx_uint16_cmp(&t, &world->player->pos))
{
- monster_hits_player(world, desc);
+ monster_hits_player(world, dsc);
return;
}
- struct Monster * other_monster;
- for (other_monster = world->monster;
+ struct MapObj * other_monster;
+ for (other_monster = world->map_objs;
other_monster != 0;
- other_monster = other_monster->map_obj.next)
+ other_monster = other_monster->next)
{
- if (other_monster == monster)
+ if (0 == other_monster->lifepoints || other_monster == monster)
{
continue;
}
- if (yx_uint16_cmp(&t, &other_monster->map_obj.pos))
+ if (yx_uint16_cmp(&t, &other_monster->pos))
{
- monster_bumps_monster(world, desc, other_monster);
+ monster_bumps_monster(world, dsc, other_monster);
return;
}
}
if (is_passable(world->map, t))
{
- monster->map_obj.pos = t;
+ monster->pos = t;
}
}
-extern void move_player (struct World * world, enum dir d)
+extern void move_player(struct World * world, enum dir d)
{
+ char * action_dsc_prototype = "player_";
+ uint8_t len = strlen(action_dsc_prototype);
+ char action_dsc[len + 2];
+ memcpy(action_dsc, action_dsc_prototype, len);
+ if (NORTH == d)
+ {
+ action_dsc[len] = 'u';
+ }
+ else if (SOUTH == d)
+ {
+ action_dsc[len] = 'd';
+ }
+ else if (WEST == d)
+ {
+ action_dsc[len] = 'l';
+ }
+ else if (EAST == d)
+ {
+ action_dsc[len] = 'r';
+ }
+ action_dsc[len + 1] = '\0';
+ uint8_t action_id = get_command_id(world, action_dsc);
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;
+ struct MapObj * monster;
+ for (monster = world->map_objs;
monster != 0;
- monster = monster->map_obj.next)
+ monster = monster->next)
{
- if (yx_uint16_cmp(&t, &monster->map_obj.pos))
+ if (0 < monster->lifepoints && yx_uint16_cmp(&t, &monster->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);
+ player_hits_monster(world, monster);
+ turn_over(world, action_id);
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);
+ }
+ try_player_move(world, d, t);
+ turn_over(world, action_id);
}
extern void player_wait (struct World * world)
{
update_log(world, "\nYou wait.");
- turn_over(world, 0);
+ turn_over(world, get_command_id(world, "wait"));
}
}
return passable;
}
-