/* SPDX-License-Identifier: GPL-3.0-or-later */
/* Copyright (C) 2021 KikooDX */

#include "particles.h"
#include <gint/display.h>

extern struct Particle particles[MAX_PARTICLES];

void
particle_create(img_t *texture, int x, int y, int frame_width,
                int frame_duration, int looping, int flip_h)
{
	/* find unused slot */
	int i = MAX_PARTICLES;
	while (i-- > 0)
		if (!particles[i].life)
			break;
	particles[i] = particle_init(texture, x, y, frame_width, frame_duration,
	                             looping, flip_h);
}

struct Particle
particle_init(img_t *texture, int x, int y, int frame_width, int frame_duration,
              int looping, int flip_h)
{
	struct Particle particle;

	particle.texture = texture;
	particle.x = x;
	particle.y = y;
	particle.frame_width = frame_width;
	particle.frame_height = texture->height;
	particle.frame_duration = frame_duration;
	particle.frame = 0;
	particle.life_ini = frame_duration * texture->width / frame_width;
	particle.life = particle.life_ini;
	particle.looping = looping;
	particle.flip_h = flip_h;

	return particle;
}