/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   move.c                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mcolonna <mcolonna@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/10/15 12:47:34 by mcolonna          #+#    #+#             */
/*   Updated: 2024/10/15 12:52:05 by mcolonna         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "algo.h"

int keypress(int keycode)
{
	double dirX, dirY, planeX, planeY;
	vector_from_rotation(&dirX, &dirY, g_ray.rot, 1);
	vector_from_rotation(&planeX, &planeY, g_ray.rot + PI/2, FOV);

	//move forward if no wall in front of you
	if (keycode == XK_Up || keycode == XK_z || keycode == XK_w)
	{
		if (worldMap[(int)((g_ray.posX + dirX * MOVE_SPEED))][(int)(g_ray.posY)] != 1)
			g_ray.posX += dirX * MOVE_SPEED;
		if (worldMap[(int)(g_ray.posX)][(int)(g_ray.posY + dirY * MOVE_SPEED)] != 1)
			g_ray.posY += dirY * MOVE_SPEED;
	}
	//move backwards if no wall behind you
	if (keycode == XK_Down || keycode == XK_s)
	{
		if (worldMap[(int)(g_ray.posX - dirX * MOVE_SPEED)][(int)(g_ray.posY)] != 1)
			g_ray.posX -= dirX * MOVE_SPEED;
		if (worldMap[(int)(g_ray.posX)][(int)(g_ray.posY - dirY * MOVE_SPEED)] != 1)
			g_ray.posY -= dirY * MOVE_SPEED;
	}
	//rotate to the right
	if (keycode == XK_Right || keycode == XK_d)
	{
		g_ray.rot += ROT_SPEED;
		// double oldDirX;
		// double oldPlaneX;
		// //both camera direction and camera plane must be rotated
		// oldDirX = dirX;
		// dirX = dirX * cos(-ROT_SPEED) - dirY * sin(-ROT_SPEED);
		// dirY = oldDirX * sin(-ROT_SPEED) + dirY * cos(-ROT_SPEED);
		// oldPlaneX = planeX;
		// planeX = planeX * cos(-ROT_SPEED) - planeY * sin(-ROT_SPEED);
		// planeY = oldPlaneX * sin(-ROT_SPEED) + planeY * cos(-ROT_SPEED);
	}
	//rotate to the left
	if (keycode == XK_Left || keycode == XK_q || keycode == XK_a)
	{
		g_ray.rot -= ROT_SPEED;
		// double oldDirX;
		// double oldPlaneX;
		// //both camera direction and camera plane must be rotated
		// oldDirX = dirX;
		// dirX = dirX * cos(ROT_SPEED) - dirY * sin(ROT_SPEED);
		// dirY = oldDirX * sin(ROT_SPEED) + dirY * cos(ROT_SPEED);
		// oldPlaneX = planeX;
		// planeX = planeX * cos(ROT_SPEED) - planeY * sin(ROT_SPEED);
		// planeY = oldPlaneX * sin(ROT_SPEED) + planeY * cos(ROT_SPEED);
	}

	if (keycode == XK_Escape)
		exit(0);

	printf("x:%f y:%f\n", g_ray.posX, g_ray.posY);
	// render the updated frame after key press
	draw_screen();
	return (0);
}