47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* mlx_draw_line.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: gbrochar <marvin@42.fr> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2016/05/04 16:05:13 by gbrochar #+# #+# */
|
|
/* Updated: 2016/05/05 23:49:25 by gbrochar ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "fdf.h"
|
|
|
|
void init_tool(int tool[6], t_mlx mlx)
|
|
{
|
|
tool[0] = ABS(mlx.x2 - mlx.x1);
|
|
tool[1] = mlx.x1 < mlx.x2 ? 1 : -1;
|
|
tool[2] = -ABS(mlx.y2 - mlx.y1);
|
|
tool[3] = mlx.y1 < mlx.y2 ? 1 : -1;
|
|
tool[4] = tool[0] + tool[2];
|
|
}
|
|
|
|
void mlx_draw_line(t_mlx mlx)
|
|
{
|
|
int tool[6];
|
|
|
|
init_tool(tool, mlx);
|
|
while (1)
|
|
{
|
|
mlx_pixel_put(mlx.ptr, mlx.win, mlx.x1, mlx.y1, mlx.color);
|
|
if (mlx.x1 == mlx.x2 && mlx.y1 == mlx.y2)
|
|
break ;
|
|
tool[5] = 2 * tool[4];
|
|
if (tool[5] >= tool[2])
|
|
{
|
|
tool[4] += tool[2];
|
|
mlx.x1 += tool[1];
|
|
}
|
|
if (tool[5] <= tool[0])
|
|
{
|
|
tool[4] += tool[0];
|
|
mlx.y1 += tool[3];
|
|
}
|
|
}
|
|
}
|