private void DrawBall(Ball ball, Color ballColor)
{
// Turn it into ints
MyVector topLeft = ball.Position.Clone();
topLeft.X -= ball.Radius;
topLeft.Y -= ball.Radius;
Point topLeftInt = topLeft.ToPoint();
int size = Convert.ToInt32(ball.Radius * 2);
// Draw the ball
_graphics.DrawEllipse(new Pen(ballColor, 3), topLeftInt.X, topLeftInt.Y, size, size);
}
private void DrawVector(MyVector fromPoint, MyVector toPoint, Color color)
{
_graphics.DrawLine(new Pen(color), fromPoint.ToPoint(), toPoint.ToPoint());
}
/// <summary>
/// This function draws the vector on the middle of the picturebox (from the middle to the vector coord)
/// The picturebox is scaled to -10 to 10
/// </summary>
private void DrawVector(MyVector vector, Color color)
{
const double SCALEFACTOR = 500d / 20d;
MyVector scaledVector = vector * SCALEFACTOR;
scaledVector.Y *= -1; // Invert Y
scaledVector.Add(250, 250, 0);
pictureBox1.CreateGraphics().DrawLine(new Pen(color, 5), new Point(250, 250), scaledVector.ToPoint());
}