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