/// <summary>
/// This is called when the game should draw itself.
/// </summary>
protected override void Draw(GameTime gameTime)
{
GraphicsDevice device = graphics.GraphicsDevice;
device.Clear(Color.DarkGray);
// Calculate the camera matrices.
float time = (float)gameTime.TotalGameTime.TotalSeconds;
Matrix rotation = Matrix.CreateRotationY(time * 0.1f);
Matrix view = Matrix.CreateLookAt(new Vector3(1000, 500, 0),
new Vector3(0, 150, 0),
Vector3.Up);
Matrix projection = Matrix.CreatePerspectiveFieldOfView(MathHelper.PiOver4,
device.Viewport.AspectRatio,
10,
10000);
// Draw the tank model.
tank.Draw(rotation, view, projection);
base.Draw(gameTime);
}
private void OnDraw(object sender, DrawEventArgs e)
{
float time = (float)e.TotalTime.TotalSeconds;
// Update the animation properties on the tank object. In a real game
// you would probably take this data from user inputs or the physics
// system, rather than just making everything rotate like this!
tank.WheelRotation = time * 5;
tank.SteerRotation = (float)Math.Sin(time * 0.75f) * 0.5f;
tank.TurretRotation = (float)Math.Sin(time * 0.333f) * 1.25f;
tank.CannonRotation = (float)Math.Sin(time * 0.25f) * 0.333f - 0.333f;
tank.HatchRotation = MathHelper.Clamp((float)Math.Sin(time * 2) * 2, -1, 0);
GraphicsDevice graphicsDevice = GraphicsDeviceManager.Current.GraphicsDevice;
Color darkGray = new Color(0xA9, 0xA9, 0xA9, 0xFF);
graphicsDevice.Clear(darkGray);
// Calculate the camera matrices.
Matrix rotation = Matrix.CreateRotationY(time * 0.1f);
Matrix view = Matrix.CreateLookAt(new Vector3(1000, 500, 0),
new Vector3(0, 150, 0),
Vector3.Up);
Matrix projection = Matrix.CreatePerspectiveFieldOfView(MathHelper.PiOver4,
graphicsDevice.Viewport.AspectRatio,
10,
10000);
// Draw the tank model.
tank.Draw(rotation, view, projection);
// Force a redraw so this control will continuously animate.
e.InvalidateSurface();
}
