public void Start()
{
if (State != SpriteDissipatorState.Ready)
{
return;
}
State = SpriteDissipatorState.Running;
}
public void Reset()
{
if (State != SpriteDissipatorState.Finished)
{
return;
}
var zeroGameTime = new GameTime();
foreach (var a in _animators)
{
a.Reset();
a.Update(zeroGameTime);
}
State = SpriteDissipatorState.Ready;
}
public void Update(GameTime gameTime)
{
if (State != SpriteDissipatorState.Running)
{
return;
}
foreach (var a in _animators)
{
a.Update(gameTime);
}
if (!_animators.All(a => a.Finished))
{
return;
}
State = SpriteDissipatorState.Finished;
}
public SpriteDissipator(Texture2D texture, Vector2 position)
{
State = SpriteDissipatorState.Ready;
_texture = texture;
_center = _upLeft = _upRight = _downLeft = _downRight = position;
const float duration = 1f;
int movementDelta = _texture.Width / 10;
_animators = new[] {
new Animator(Easing.Linear, _center.X, val => _upLeft.X = val, -movementDelta, duration),
new Animator(Easing.Linear, _center.Y, val => _upLeft.Y = val, -movementDelta, duration),
new Animator(Easing.Linear, _center.X, val => _upRight.X = val, movementDelta, duration),
new Animator(Easing.Linear, _center.Y, val => _upRight.Y = val, -movementDelta, duration),
new Animator(Easing.Linear, _center.X, val => _downLeft.X = val, -movementDelta, duration),
new Animator(Easing.Linear, _center.Y, val => _downLeft.Y = val, movementDelta, duration),
new Animator(Easing.Linear, _center.X, val => _downRight.X = val, movementDelta, duration),
new Animator(Easing.Linear, _center.Y, val => _downRight.Y = val, movementDelta, duration),
new Animator(Easing.Linear, _outerOpacity, val => _outerOpacity = val, -0.5f, duration),
new Animator(Easing.Linear, _centerOpacity, val => _centerOpacity = val, -1f, duration),
};
}
