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Installation

1. Import the RTween package into your Unity project
2. Add the RTween namespace: using RG.Tweening;
3. Start tweening with simple API calls

Your First Tween

// Move object to position over 1 second
RTween.Move(transform, new Vector3(10, 0, 0), 1f)
    .SetEase(EaseType.OutQuad)
    .OnComplete(() => Debug.Log("Animation complete!"));

Zero Garbage Collection

RTween uses object pooling and struct-based design to eliminate GC allocations during runtime. This ensures smooth performance even on mobile devices.

Tween Lifecycle

• Creation: Tween is initialized from pool
• Execution: Updates every frame until duration completes
• Completion: Callbacks fire and tween returns to pool
• Cancellation: Manual stop returns tween to pool immediately

Performance Tips

• Cache tween references when possible
• Use SetRecyclable(false) for tweens you'll reuse
• Prefer Transform tweens over GameObject tweens

Transform Tweens

• Move(Transform target, Vector3 to, float duration) - Move to position
• LocalMove(Transform target, Vector3 to, float duration) - Move local position
• Rotation(Transform target, Quaternion to, float duration) - Rotate to euler angles
• LocalRotation(Transform target, Quaternion to, float duration) - Rotate local
• Scale(Transform target, Vector3 to, float duration) - Scale transform

Color & Material Tweens

• Color(Image target, Color to, float duration) - Fade material color
• Alpha(CanvasGroup target, float to, float duration) - Fade transparency

UI Tweens

• UIMove(RectTransform target, Vector2 to, float duration)
• SizeDelta(RectTransform target, Vector2 to, float duration)

Camera Tweens

• FieldOfView(Camera target, float to, float duration)
• OrthographicSize(Camera target, float to, float duration)

Creating Sequences

RTween.Sequence()
    .Add(RTween.Move(transform, Vector3.up * 5, 1f))
    .Add(RTween.Rotation(transform, Quaternion.Euler(0, 180, 0), 0.5f))
    .Add(RTween.Scale(transform, Vector3.one * 2, 1f))
    .SetRepeat(-1, RepeatType.Yoyo)
    .Play();

Parallel Tweens

sequence.With(RTween.Move(transform, targetPos, 1f))
    .With(RTween.Rotation(transform, targetRot, 1f));

Callbacks

tween.OnStart(() => Debug.Log("Started"))
    .OnUpdate(() => Debug.Log("Updating"))
    .OnComplete(() => Debug.Log("Finished"));

Using the Visual Animator

1. Add RTween Animator component to your GameObject
2. Click "Add Tween" to create a new animation
3. Select tween type from dropdown (Position, Rotation, Scale, etc.)
4. Set target values and duration
5. Choose easing function from visual curve editor
6. Configure play settings (Auto Start, Loop, Delay)
7. Test in Edit Mode with Preview button

Timeline Editor

The timeline view lets you visualize and edit multiple tweens at once, adjusting their timing and order with drag-and-drop.

Presets

Save your favorite tween configurations as presets for quick reuse across your project.