src/ft_draw_verline.c


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#include <cub3d.h>

int8_t
ft_draw_verline(t_cub *cl, int32_t x, int32_t y1, int32_t y2, int32_t color)
{
	int32_t y;
	int32_t t;

	if (y1 < 0)
		y1 = 0;
	if (y2 < 0)
		y2 = 0;
	if (y2 >= cl->wlist->y_size)
		y2 = cl->wlist->x_size - 1;
	if (y1 > y2)
	{
		t = y1;
		y1 = y2;
		y2 = t;
	}
	y = y1;
	while (y <= y2)
	{
		*(int*)(cl->img.ptr + (x * 4 + (y * cl->img.sizeline))) = color;
		y++;
	}
	return (0);
}