public FirstpersonCamera(Game game, IFollowable target=null)
: base(game)
{
this.Target = target;
this.start = this.real = null;
time = 0;
Enabled = false;
UpdateProjection();
game.GraphicsDevice.DeviceReset += delegate(object s, EventArgs a)
{
UpdateProjection();
};
}
public void HardSet(IFollowable target = null)
{
if (target != null)
{
start = new Followable(target);
real = new Followable(target);
this.time = FirstpersonCamera.Delay;
this.Enabled = true;
}
else
{
time = 0;
this.start = this.real = null;
this.Enabled = false;
}
}
public override void Update(GameTime gameTime)
{
float dt = (float)gameTime.ElapsedGameTime.TotalSeconds;
if (time > 0)
{
this.real.Position = Vector3.Lerp(this.Target.Position, this.start.Position, time / FirstpersonCamera.Delay);
this.real.Orientation = Quaternion.Slerp(this.Target.Orientation, this.start.Orientation, time / FirstpersonCamera.Delay);
time -= dt;
}
else
{
time = 0;
this.start = this.real = null;
this.Enabled = false;
}
base.Update(gameTime);
}