42_cube3D/game/raycasting.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   raycasting.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: erey-bet <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/04/27 14:30:29 by erey-bet          #+#    #+#             */
/*   Updated: 2023/05/05 13:59:57 by erey-bet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "game.h"

int	raycasting(t_game *game)
{
	t_ply	*p;
	t_ray	*ray;
	double	camera;
	int		x;

	x = 0;
	p = &game->ply;
	ray = &game->ray;
	while (x < WIDTH)
	{
		camera = 2 * x / (double)WIDTH - 1;
		ray->dir_x = p->dir_x + p->pla_x * camera;
		ray->dir_y = p->dir_y + p->pla_y * camera;
		dda(game, x);
		x++;
	}
	return (0);
}