plugins/cherry/cherry.c

   1 #include <stddef.h>
   2 #include <stdlib.h>
   3 #include "../game/game.h"
   4 #include "../score/score.h"
   5 #include "../inventory/inventory.h"
   6 #include "../loot/loot.h"
   7
   8 static bool use_cherry(struct itemstack *stack)
   9 {
  10         add_health(&player, 2);
  11         return true;
  12 }
  13
  14 static struct item cherry_item = {
  15         .name = "Cherry",
  16         .stackable = true,
  17
  18         .on_use = &use_cherry,
  19         .on_destroy = NULL,
  20         .on_create = NULL,
  21 };
  22
  23 static void cherry_step(struct entity *self, struct entity_step_data stepdata)
  24 {
  25         if (stepdata.dx == 0 && stepdata.dy == 0) {
  26                 add_score(2);
  27                 inventory_add(&player_inventory, (struct itemstack) {
  28                         .item = &cherry_item,
  29                         .count = 1,
  30                         .meta = NULL,
  31                 });
  32                 self->remove = true;
  33         }
  34 }
  35
  36 static struct entity cherry_entity = {
  37         .name = "cherry",
  38         .x = 0,
  39         .y = 0,
  40         .color = {0},
  41         .use_color = false,
  42         .texture = "🍒",
  43         .remove = false,
  44         .meta = NULL,
  45         .health = 1,
  46         .max_health = 1,
  47         .collide_with_entities = false,
  48
  49         .on_step = &cherry_step,
  50         .on_collide = NULL,
  51         .on_collide_with_entity = NULL,
  52         .on_spawn = NULL,
  53         .on_remove = NULL,
  54         .on_death = NULL,
  55         .on_damage = NULL,
  56 };
  57
  58 static void spawn_cherry(int x, int y, enum mg_context ctx)
  59 {
  60         spawn(cherry_entity, x, y, NULL);
  61 }
  62
  63 __attribute__((constructor)) static void init()
  64 {
  65         register_air_function((struct generator_function) {
  66                 .corridor_chance = 100,
  67                 .room_chance = 100,
  68                 .callback = &spawn_cherry,
  69         });
  70
  71         register_loot((struct loot) {
  72                 .item = &cherry_item,
  73                 .chance = 2,
  74                 .min = 3,
  75                 .max = 10,
  76         });
  77 }
  78