plugins/sword/sword.c

   1 #include <stdlib.h>
   2 #include <stddef.h>
   3 #include "../game/game.h"
   4 #include "../movement/movement.h"
   5 #include "../inventory/inventory.h"
   6 #include "../recharge/recharge.h"
   7 #include "../loot/loot.h"
   8
   9 static bool use_broken_sword(struct itemstack *stack)
  10 {
  11         return true;
  12 }
  13
  14 static struct item broken_sword = {
  15         .name = "Broken Sword",
  16         .stackable = false,
  17
  18         .on_use = &use_broken_sword,
  19         .on_destroy = NULL,
  20         .on_create = NULL,
  21 };
  22
  23 static bool use_sword(struct itemstack *stack)
  24 {
  25         if (! is_charged())
  26                 return false;
  27
  28         int x, y;
  29         x = player.x;
  30         y = player.y;
  31
  32         dir_to_xy(last_player_move, &x, &y);
  33
  34         struct entity *entity = entity_collision_map[x][y];
  35
  36         if (entity) {
  37                 add_health(entity, -1);
  38
  39                 if (rand() % 100 == 0)
  40                         stack->item = &broken_sword;
  41
  42                 recharge(1.0, "⚔ ");
  43         }
  44
  45         return false;
  46 }
  47
  48 static struct item sword = {
  49         .name = "Sword",
  50         .stackable = false,
  51
  52         .on_use = &use_sword,
  53         .on_destroy = NULL,
  54         .on_create = NULL,
  55 };
  56
  57 static void handle_e()
  58 {
  59         struct itemstack *stack = inventory_find(&player_inventory, &sword);
  60
  61         if (stack)
  62                 use_sword(stack);
  63 }
  64
  65 __attribute__((constructor)) static void init()
  66 {
  67         inventory_add(&player_inventory, (struct itemstack) {
  68                 .item = &sword,
  69                 .count = 1,
  70                 .meta = NULL,
  71         });
  72
  73         register_input_handler('e', (struct input_handler) {
  74                 .run_if_dead = false,
  75                 .callback = &handle_e,
  76         });
  77
  78         register_loot((struct loot) {
  79                 .chance = 7,
  80                 .item = &sword,
  81                 .min = 1,
  82                 .max = 1,
  83         });
  84 }