public void Update(Stopwatch gameTime, KeyboardState state, KeyboardState prevstate, ref Matrix4 cameraPosition, ref Matrix4 cameraRotation, MouseState mousestate, MouseState prevmousestate)
{
foreach (gameObject g in gameObjects)
{
g.Update(gameTime, state);
}
cameraheight.Y += mousestate.ScrollWheelValue - prevmousestate.ScrollWheelValue;
Matrix4 carTransform = carbody.CalcFinalTransform();
cameraPosition = Matrix4.Invert(carTransform.ClearRotation()) * Matrix4.CreateTranslation(cameraheight);
cameraRotation = Matrix4.Invert(carTransform.ClearTranslation()) * Matrix4.CreateRotationY((float)Math.PI) * Matrix4.CreateRotationX((float)(0.5 * Math.PI));
if (state.IsKeyDown(Key.H) && !prevstate.IsKeyDown(Key.H))
{
if (headlight)
{
spotlights = spotlights.GetRange(0, spotlights.Count - 4);
headlight = false;
}
else
{
spotlights.Add(new Spotlight(new Vector4(-0.25f, 0.2f, 0.75f, 1), new Vector4(0, 0, 1, 0), 50, new Vector3(1, 1, 1), carbody, 0.8f));
spotlights.Add(new Spotlight(new Vector4(0.25f, 0.2f, 0.75f, 1), new Vector4(0, 0, 1, 0), 50, new Vector3(1, 1, 1), carbody, 0.8f));
spotlights.Add(new Spotlight(new Vector4(-0.25f, 0.2f, -0.5f, 1), new Vector4(0, 0, -1, 0), 30, new Vector3(1, 0, 0), carbody, 0.95f));
spotlights.Add(new Spotlight(new Vector4(0.25f, 0.2f, -0.5f, 1), new Vector4(0, 0, -1, 0), 30, new Vector3(1, 0, 0), carbody, 0.95f));
headlight = true;
}
}
}
public void calc()
{
if (parent != null)
{
Matrix4 parentmatrix = parent.CalcFinalTransform();
position = localPosition * parentmatrix.ClearScale();
}
}
// calculate final transformation
public Matrix4 CalcFinalTransform()
{
if (parent != null)
{
return(localScale * localRotation * localTranslation * parent.CalcFinalTransform());
}
else
{
return(localScale * localRotation * localTranslation);
}
}