src/ft_draw_traps_extra.c


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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_draw_traps_extra.c                              :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: rbousset <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/02/24 20:22:45 by rbousset          #+#    #+#             */
/*   Updated: 2020/03/09 18:56:01 by rbousset         ###   ########lyon.fr   */
/*                                                                            */
/* ************************************************************************** */

#include <libft.h>
#include <cub3d.h>
#include <stdint.h>
#include <stdlib.h>
#include <math.h>

void
	ft_calc_trap(t_cub *cl)
{
	t_sprite	sprite;
	int32_t		i;

	i = 0;
	while (i < cl->mlist.traps_nbr)
	{
		sprite = cl->traps[i];
		sprite.spritey = sprite.s_pos_x - (cl->plist.pos_x - 0.5);
		sprite.spritex = sprite.s_pos_y - (cl->plist.pos_y - 0.5);
		sprite.invdet = 1.0 / (cl->plist.plane_x * cl->plist.dir_y
			- cl->plist.dir_x * cl->plist.plane_y);
		sprite.transformx = sprite.invdet * (cl->plist.dir_y * sprite.spritex
			- cl->plist.dir_x * sprite.spritey);
		sprite.transformy = sprite.invdet * (-cl->plist.plane_y * sprite.spritex
			+ cl->plist.plane_x * sprite.spritey);
		sprite.spritescreenx = (int)(cl->wlist.x_size / 2) *
			(1 + sprite.transformx / sprite.transformy);
		ft_sprite_height(cl, &sprite);
		ft_sprite_width(cl, &sprite);
		ft_draw_traps(cl, &sprite);
		i++;
	}
}