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