/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_darken_rgb.c                                    :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: rbousset <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/03/05 16:04:28 by rbousset          #+#    #+#             */
/*   Updated: 2020/03/05 16:04:29 by rbousset         ###   ########lyon.fr   */
/*                                                                            */
/* ************************************************************************** */

#include <cub3d.h>
#include <stdint.h>
#include <stdio.h>

uint32_t
	ft_darken_ceil(t_rgb rgb, int32_t y, t_cub *cl)
{
	t_rgb		darker;
	float		calc;

	darker = rgb;
	calc = ((float)(y - (75000.0 / cl->wlist.y_size))
			/ (cl->wlist.y_size / 2));
	calc = (calc < 0) ? (0) : (calc);
	darker.r *= 1 - calc;
	darker.g *= 1 - calc;
	darker.b *= 1 - calc;
	return (ft_rgb_to_hex(darker));
}

uint32_t
	ft_darken_floor(t_rgb rgb, int32_t y, t_cub *cl)
{
	t_rgb		darker;
	float		calc;

	calc = ((float)(y + (75000.0 / cl->wlist.y_size))
			/ (cl->wlist.y_size / 2)) - 1.0;
	calc = (calc < 0) ? (0) : (calc);
	darker = rgb;
	darker.r *= calc;
	darker.g *= calc;
	darker.b *= calc;
	return (ft_rgb_to_hex(darker));
}