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