circle code

void DrawCircle(int texture_size_x, int texture_size_y, int center_x, int center_y, int r, Color color)
{
	// basically, find out the box around the circle
	// iterate inside the box only for optimziation
	int box_x_min = max(0, center_x - r); 
	int box_y_min = max(0, center_y - r); 
	int box_x_max = min(texture_size_x, center_x + r); 
	int box_y_max = min(texture_size_y, center_y + r); 
	
	// go thru each position within the box that surrounds the circle
	for ( int x = box_x_min; x <= box_x_max; ++x )
	{
		for ( int y = box_y_min; y <= box_y_max; ++y )
		{
			// calculate distance from current point to the center of the circle
			// if the distance is less than the radius, that means you are *inside* the circle, so color that shit BLACK 
			float x_diff = x - center_x;
			float y_diff = y - center_y;
			float length = Math.sqrt( x_diff*x_diff + y_diff*y_diff );
			
			// test if inside circle
			if ( length < r )
			{
				newTex.SetPixel(x,y,color);
			}
		}	
	}
}