Planet Chili

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void Graphics::DrawCircle( int x,int y,int radius,Color c )
{
	const int rad_sq = radius * radius;
	for( int y_loop = y - radius + 1; y_loop < y + radius; y_loop++ )
	{		
		for( int x_loop = x - radius + 1; x_loop < x + radius; x_loop++ )
		{
			const int x_diff = x - x_loop;
			const int y_diff = y - y_loop;
			if( x_diff * x_diff + y_diff * y_diff <= rad_sq )
			{
				PutPixel( x_loop,y_loop,c );
			}
		}
	}
}