path: root/src/collision.c

/*
 * Copyright (c) 2019-2020, yzrh <yzrh@noema.org>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <stdbool.h>

#include <SDL2/SDL.h>

#include "screen.h"
#include "renderer.h"

bool
collision(int *a, int *b)
{
	if (a[0] < b[0] + b[2] &&
		a[0] + a[2] > b[0] &&
		a[1] < b[1] + b[3] &&
		a[1] + a[3] > b[1])
		return 1;
	return 0;
}

bool
collision_block(int *a, int *b)
{
	return collision(
		(int[]) {a[0], a[1], SCREEN_UNIT, SCREEN_UNIT},
		(int[]) {b[0], b[1], SCREEN_UNIT, SCREEN_UNIT});
}

bool
collision_bound(float x, float y, Snake_Text *message)
{
	if (x > message->pos.x &&
		x < message->pos.x + message->pos.w &&
		y > message->pos.y &&
		y < message->pos.y + message->pos.h)
		return 1;
	return 0;
}