/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_draw_handweap.c                                 :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: rbousset <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/02/22 20:02:47 by rbousset          #+#    #+#             */
/*   Updated: 2020/02/22 20:02:48 by rbousset         ###   ########lyon.fr   */
/*                                                                            */
/* ************************************************************************** */

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

static void
	ft_put_weapon_image(int8_t w_id, int16_t y, int16_t x, t_cub *cl)
{
	*(cl->img.ptr + x * 4 + (cl->img.sizeline * y)) =
		*(cl->tweap[w_id].ptr + cl->tweap[w_id].tex_x * 4 + 4 *
		cl->tweap[w_id].img_w * cl->tweap[w_id].tex_y);
	*(cl->img.ptr + x * 4 + (cl->img.sizeline * y) + 1) =
		*(cl->tweap[w_id].ptr + cl->tweap[w_id].tex_x * 4 + 4 *
		cl->tweap[w_id].img_w * cl->tweap[w_id].tex_y + 1);
	*(cl->img.ptr + x * 4 + (cl->img.sizeline * y) + 2) =
		*(cl->tweap[w_id].ptr + cl->tweap[w_id].tex_x * 4 + 4 *
		cl->tweap[w_id].img_w * cl->tweap[w_id].tex_y + 2);
}

static int16_t
	ft_set_move(t_cub *cl)
{
	static int8_t	more = 0;
	static int8_t	less = 39;

	if (more < 38)
	{
		if (!cl->moves)
			return (more);
		more += FT_BOUNCE_FACTOR;
		return (more);
	}
	else
	{
		if (!cl->moves)
			return (less);
		less -= FT_BOUNCE_FACTOR;
		if (less < 1)
		{
			more = 0;
			less = 39;
			return (more);
		}
		return (less);
	}
}

static void
	ft_put_handweap(int8_t w_id, int32_t y_ratio, int32_t x_ratio, t_cub *cl)
{
	int16_t			x;
	int16_t			y;
	int16_t			move;

	y = 0;
	move = (cl->plist.fire == 1) ? (0) : (ft_set_move(cl));
	while (y < (int16_t)cl->wlist.y_size)
	{
		cl->tweap[w_id].tex_y = ((y * y_ratio) >> 16);
		cl->tweap[w_id].tex_y += move;
		x = 0;
		while (x < (int16_t)cl->wlist.x_size)
		{
			cl->tweap[w_id].tex_x = ((x * x_ratio) >> 16);
			cl->tweap[w_id].tex_x += move / 4;
			if (cl->tweap[w_id].ptr[cl->tweap[w_id].tex_x * 4 + 4 *
				cl->tweap[w_id].img_h * cl->tweap[w_id].tex_y])
				ft_put_weapon_image(w_id, y, x, cl);
			x++;
		}
		y++;
	}
}

void
	ft_draw_handweap(t_cub *cl)
{
	int32_t			x_ratio;
	int32_t			y_ratio;
	int8_t			w_id;

	w_id = cl->plist.handles_weapon;
	w_id += (cl->plist.fire == 1) ? (1) : (0);
	x_ratio = (int32_t)(((cl->tweap[w_id].img_w - 50) << 16)
		/ cl->wlist.x_size) + 1;
	y_ratio = (int32_t)(((cl->tweap[w_id].img_h - 50) << 16)
		/ cl->wlist.y_size) + 1;
	ft_put_handweap(w_id, y_ratio, x_ratio, cl);
}