[source lang=c#]
private int Min(float A, float B)
		{
			if(A < B)
			{
				int newA = Convert.ToInt32(A + 0.5);
				return newA;
			}
			else
			{
				int newB = Convert.ToInt32(B + 0.5);
				return newB;
			}
		}

		private float Distance2D(float X, float Y)
		{
			X = Math.Abs(X);
			Y = Math.Abs(Y);
			int Distance = Min(X, Y);
			return (X + Y - (Distance >> 1) - (Distance >> 2) + (Distance >> 4));
		}
	
		private void Player1Collision(float paddleForceP1)
		{
			float p1NormalX = puck_x - paddle1_x;
			float p1NormalY = puck_y - paddle1_y;

			float p1Distance = Distance2D(p1NormalX, p1NormalY);
			if(p1Distance <= 2.0f * (paddleWidth / 2))
			{
				p1NormalX /= p1Distance;
				p1NormalY /= p1Distance;

				x_vel = (p1NormalX - -p1NormalY) * paddleForceP1;
				y_vel = (p1NormalY - p1NormalX) * paddleForceP1;
			}   
		}

		private void CheckPlayer1HitPuck()
		{
			if(rgnPaddle1.IsVisible(puckRect))
			{
				player1PuckHit = true;
			}
			
			if(player1PuckHit == true)
			{
				Player1Collision(10);
			}

			player1PuckHit = false;
		}