42_cube3D/game/init.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   init.c                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: erey-bet <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/04/27 14:50:22 by erey-bet          #+#    #+#             */
/*   Updated: 2023/06/01 13:28:15 by erey-bet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "game.h"

void	init_ply(t_map map, t_ply *ply)
{
	ply->pos_x = map.ply_x + 0.5;
	ply->pos_y = map.ply_y + 0.5;
	ply->dir_x = 0.0;
	ply->dir_y = 0.0;
	if (map.direction == 'N')
		ply->dir_y = -1.0;
	if (map.direction == 'S')
		ply->dir_y = 1.0;
	if (map.direction == 'E')
		ply->dir_x = 1.0;
	if (map.direction == 'W')
		ply->dir_x = -1.0;
	ply->pla_x = -(ply->dir_y) * 0.66;
	ply->pla_y = (ply->dir_x) * 0.66;
}

void	init_ray(t_ray *ray)
{
	ray->dir_x = 0;
	ray->dir_y = 0;
}

int	init_textures(t_map map, mlx_texture_t *textures[4])
{
	textures[0] = mlx_load_png(map.img_path[0]);
	if (!textures[0])
		return (1);
	textures[1] = mlx_load_png(map.img_path[1]);
	if (!textures[1])
		return (1);
	textures[2] = mlx_load_png(map.img_path[2]);
	if (!textures[2])
		return (1);
	textures[3] = mlx_load_png(map.img_path[3]);
	if (!textures[3])
		return (1);
	return (0);
}

int	init(t_map map, t_game *game)
{
	if (init_textures(map, game->textures))
		return (2);
	game->mlx = mlx_init(WIDTH, HEIGHT, "jan lili", true);
	if (!game->mlx)
		return (1);
	game->map = map;
	init_ply(map, &game->ply);
	init_ray(&game->ray);
	return (0);
}