Hacking My function to draw a line (not just horiz or vert) that works In libwiiu

[brienj]

The function drawLine in libwiiu only draws a horizontal or vertical line. So what if you want to draw a 30, 45, or 60 degree angle? I was doing some testing, and found the DDA Algorithm, modified to work with libwiiu, to be the best. So here is the code for the DDA Algorithm I modified. You can replace the normal drawLine function with it if you want, it works just as well.

void draw2DLine(int x1, int y1, int x2, int y2, char r, char g, char b)
{
	int s, dx, dy, m;
	float xi, yi, x, y;
	dx = x2 - x1;
	dy = y2 - y1;
	if (abs(dx) > abs(dy)) {
		s = dx;
	}
	else {
		s = dy;
	}
	xi = dx / (float) s;
	yi = dy / (float) s;
	x = x1;
	y = y1;

	drawPixel(x1, y1, r, g, b);
	if (s > m) {
		m = 0;
		for (m; m < s; m++) {
			x += xi;
			y += yi;
			drawPixel(x, y, r, g, b);
		}
	}
	else {
		m = 0;
		for (m; m > s; m--) {
			x -= xi;
			y -= yi;
			drawPixel(x, y, r, g, b);
		}
	}
}

 

[Deleted User]

Awesome! Why don't you create a merge pull request in the libwiiu repo on github?

...unless you already have done?

 

[brienj]

Awesome! Why don't you create a merge pull request in the libwiiu repo on github?

...unless you already have done?

I'm not even on github. I really need to one of these days though.

 

[Deleted User]

I'm not even on github. I really need to one of these days though.

i don't even know how to set up a repository still.