Tweening

Tween property animation, easing curves, chaining, and lifecycle management define smooth programmatic motion.

Available Scripts

juice_manager.gd

Expert tween-based juice system with reusable effect presets (bounce, shake, pulse, etc.).

NEVER Do in Tweening

• NEVER create tweens without killing previous — Spam click button, create 100 tweens? Memory leak + conflicting animations. ALWAYS if tween: tween.kill() before creating new.
• NEVER tween in _process without create_tween() — create_tween() every frame? 60 tweens/second × 60 frames = 3600 tween objects. Create ONCE, reuse OR kill old.
• NEVER forget to set_parallel for simultaneous — Chain tween_property() expecting simultaneous? Sequential by default. Use tween.set_parallel(true) first.
• NEVER use 0-duration tweens for instant changes — tween_property(x, 0.0) for teleport? Overhead of tween system. Just set property: sprite.position = target.
• NEVER skip finished signal for cleanup — Tween completes, node still references it? Memory held. Connect tween.finished for cleanup OR null reference.
• NEVER use linear interpolation for UI — TRANS_LINEAR for button hover? Robotic feel. Use EASE_OUT + TRANS_QUAD OR EASE_IN_OUT + TRANS_CUBIC for organic motion.