crystal-tower/src/shatter.c

#include "shatter.h"
#include "anim.h"
#include "conf.h"
#include "level.h"
#include "particles.h"
#include "raygint/display.h"
#include "tile.h"
#include "vec.h"
#include <stddef.h>

static void callback(struct Anim *);

void
shatter(int x, int y)
{
#ifdef GINT
	extern bopti_image_t bimg_shatter;
#endif
#ifdef RAYLIB
	bopti_image_t bimg_shatter = 0;
#endif
	const int ax = (int)(x / TILE_SIZE) * TILE_SIZE;
	const int ay = (int)(y / TILE_SIZE) * TILE_SIZE;
	struct Anim p = anim_new(&bimg_shatter, ax, ay, TILE_SIZE, 2, false);
	p.callback = callback;
	if (level_get_px(ax, ay) == TILE_SOLID && !particles_here(ax, ay))
		particles_add(p);
}

static void
callback(struct Anim *a)
{
	const int x = a->pos.x / TILE_SIZE;
	const int y = a->pos.y / TILE_SIZE;
	level_set(x, y, TILE_SHATTERED);
	if (level_get(x - 1, y) == TILE_SPIKE_L)
		level_set(x - 1, y, TILE_VOID);
	if (level_get(x + 1, y) == TILE_SPIKE_R)
		level_set(x + 1, y, TILE_VOID);
	if (level_get(x, y - 1) == TILE_SPIKE_U)
		level_set(x, y - 1, TILE_VOID);
	if (level_get(x, y + 1) == TILE_SPIKE_D)
		level_set(x, y + 1, TILE_VOID);
}