protected override void Update(GameTime gameTime)
{
GamePadState padState = GamePad.GetState(PlayerIndex.One);
KeyboardState keyState = Keyboard.GetState();
//if (padState.Buttons.Back == ButtonState.Pressed || keyState.IsKeyDown(Keys.Escape))
// Exit();
if (IsKeyDown(keyState, Keys.R))
{
ResetSelectedPlugIn();
}
if (IsKeyDown(keyState, Keys.S))
{
SelectNextVehicle();
}
if (IsKeyDown(keyState, Keys.A))
{
_annotations.IsEnabled = !_annotations.IsEnabled;
}
if (IsKeyDown(keyState, Keys.Space))
{
Clock.TogglePausedState();
}
if (IsKeyDown(keyState, Keys.C))
{
Camera.SelectNextMode();
}
if (IsKeyDown(keyState, Keys.F))
{
SelectNextPresetFrameRate();
}
if (IsKeyDown(keyState, Keys.Tab))
{
SelectNextPlugin();
}
for (Keys key = Keys.F1; key <= Keys.F10; key++)
{
if (IsKeyDown(keyState, key))
{
_selectedPlugIn.HandleFunctionKeys(key);
}
}
_prevKeyState = keyState;
// update global simulation clock
Clock.Update();
// start the phase timer (XXX to accurately measure "overhead" time this
// should be in displayFunc, or somehow account for time outside this
// routine)
InitPhaseTimers();
// run selected PlugIn (with simulation's current time and step size)
UpdateSelectedPlugIn(Clock.TotalSimulationTime, Clock.ElapsedSimulationTime);
WorldMatrix = Matrix.Identity;
Vector3 pos = Camera.Position.ToXna();
Vector3 lookAt = Camera.Target.ToXna();
Vector3 up = Camera.Up.ToXna();
ViewMatrix = Matrix.CreateLookAt(new Vector3(pos.X, pos.Y, pos.Z), new Vector3(lookAt.X, lookAt.Y, lookAt.Z), new Vector3(up.X, up.Y, up.Z));
ProjectionMatrix = Matrix.CreatePerspectiveFieldOfView(
MathHelper.ToRadians(45), // 45 degree angle
Graphics.GraphicsDevice.Viewport.Width / (float)Graphics.GraphicsDevice.Viewport.Height,
1.0f, 400.0f);
base.Update(gameTime);
}
