public bool collided(XNACS1Primitive other)
{
if (other != null && ballList != null)
{
foreach (Ball ball in ballList)
{
if (ball.Collided(other))
{
return(true);
}
}
}
return(false);
}
protected void reflectionVelocityResolution(XNACS1Primitive other)
{
if (other != null)
{
if (other.CenterY >= CenterY + Height / 2f || other.CenterY <= CenterY - Height / 2f)
{
other.VelocityY *= -1;
}
else
{
other.VelocityX *= -1;
}
}
}
protected void reflectHelper(XNACS1Primitive other)
{
if (other != null)
{
// Reflect
if (other.CenterY >= CenterY + Radius || other.CenterY <= CenterY - Radius)
{
other.VelocityY *= -1;
}
else
{
other.VelocityX *= -1;
}
}
}
public void Update(XNACS1Primitive target, float turnRate)
{
if (!Collided(target))
{
Vector2 targetDir = target.Center - Center;
targetDir.Normalize();
float theta = MathHelper.ToDegrees((float)Math.Acos(
(double)(Vector2.Dot(FrontDirection, targetDir))));
if (theta > 0.001f)
{ // not quite aligned ...
Vector3 fIn3D = new Vector3(FrontDirection, 0f);
Vector3 tIn3D = new Vector3(targetDir, 0f);
Vector3 sign = Vector3.Cross(fIn3D, tIn3D);
RotateAngle += Math.Sign(sign.Z) * theta * turnRate;
VelocityDirection = FrontDirection;
}
mShowV.SetEndPoints(Center, Center + kDrawFactor * Velocity, kDrawWidth);
mShowV.Color = Color.Blue;
}
}