void TestTank::MoveInHeadingDirection(float deltaTime)
{
mSteeringForce = mSteering->Calculate(deltaTime);
//cout << mSteeringForce.x << ":" << mSteeringForce.y << endl;
//Acceleration = Force/Mass
Vector2D acceleration = mSteeringForce / GetMass();
//Update velocity.
mVelocity += acceleration * deltaTime;
//Don't allow the tank does not go faster than max speed.
mVelocity.Truncate(GetMaxSpeed());
if (mVelocity.Length() > 0.0001)
{
if (mVelocity.x != mVelocity.x || mVelocity.y != mVelocity.y) return;
Vector2D newPosition = GetPosition();
newPosition.x += mVelocity.x*deltaTime;
newPosition.y += (mVelocity.y)*deltaTime; //Y flipped as adding to Y moves down screen.
SetPosition(newPosition);
Vector2D ahead = Vec2DNormalize(mVelocity);
if (ahead.Length() == 0)
ahead = mHeading;
Vector2D cenPos = GetCentrePosition();
Vector2D aheadDistance = cenPos + ahead * 30;
RotateHeadingToFacePosition(aheadDistance);
}
}
void PlayerBase::TrackBall()
{
RotateHeadingToFacePosition(Ball()->Pos());
}
