/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   move.c                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mcolonna <mcolonna@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/10/15 12:47:34 by mcolonna          #+#    #+#             */
/*   Updated: 2024/10/15 16:01:08 by mcolonna         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "algo.h"

static int	move_forward(void)
{
	t_point_double	dir;

	vector_from_rotation(&dir, g_ray.rot, 1);
	if (g_world_map[(int)((g_ray.pos.x + dir.x * MOVE_SPEED))]
		[(int)(g_ray.pos.y)] != 1
	)
		g_ray.pos.x += dir.x * MOVE_SPEED;
	if (g_world_map[(int)(g_ray.pos.x)]
		[(int)(g_ray.pos.y + dir.y * MOVE_SPEED)] != 1
	)
		g_ray.pos.y += dir.y * MOVE_SPEED;
	return (0);
}

static int	move_backward(void)
{
	t_point_double	dir;

	vector_from_rotation(&dir, g_ray.rot, 1);
	if (g_world_map[(int)(g_ray.pos.x - dir.x * MOVE_SPEED)]
		[(int)(g_ray.pos.y)] != 1
	)
		g_ray.pos.x -= dir.x * MOVE_SPEED;
	if (g_world_map[(int)(g_ray.pos.x)]
		[(int)(g_ray.pos.y - dir.y * MOVE_SPEED)] != 1
	)
		g_ray.pos.y -= dir.y * MOVE_SPEED;
	return (0);
}

static int	move_right(void)
{
	g_ray.rot += PI / ROT_SPEED_DIVIDE_PI;
	return (0);
}

static int	move_left(void)
{
	g_ray.rot -= PI / ROT_SPEED_DIVIDE_PI;
	return (0);
}

// TODO leaks when quit?

int	keypress(int keycode)
{
	if (keycode == XK_Up || keycode == XK_z || keycode == XK_w)
		move_forward();
	if (keycode == XK_Down || keycode == XK_s)
		move_backward();
	if (keycode == XK_Right || keycode == XK_d)
		move_right();
	if (keycode == XK_Left || keycode == XK_q || keycode == XK_a)
		move_left();
	if (keycode == XK_Escape)
	{
		mlx_destroy_window(g_mlx, g_win);
		exit(0);
	}
	draw_screen();
	return (0);
}