style: apply dart format across project

lib/widgets/spring_animation_widget.dart

@@ -8,7 +8,7 @@ class SpringAnimationWidget extends StatefulWidget {
   final Offset? initialOffset;
   final double? initialScale;
   final double? initialRotation;
-  
+
   const SpringAnimationWidget({
     super.key,
     required this.child,
@@ -41,7 +41,7 @@ class _SpringAnimationWidgetState extends State<SpringAnimationWidget>
       vsync: this,
       duration: const Duration(seconds: 2),
     );
-    
+
     // 오프셋 애니메이션
     _offsetAnimation = Tween<Offset>(
       begin: widget.initialOffset ?? const Offset(0, 50),
@@ -50,7 +50,7 @@ class _SpringAnimationWidgetState extends State<SpringAnimationWidget>
       parent: _controller,
       curve: Curves.elasticOut,
     ));
-    
+
     // 스케일 애니메이션
     _scaleAnimation = Tween<double>(
       begin: widget.initialScale ?? 0.5,
@@ -59,7 +59,7 @@ class _SpringAnimationWidgetState extends State<SpringAnimationWidget>
       parent: _controller,
       curve: Curves.elasticOut,
     ));
-    
+
     // 회전 애니메이션
     _rotationAnimation = Tween<double>(
       begin: widget.initialRotation ?? 0.0,
@@ -68,7 +68,7 @@ class _SpringAnimationWidgetState extends State<SpringAnimationWidget>
       parent: _controller,
       curve: Curves.elasticOut,
     ));
-    
+
     // 지연 후 애니메이션 시작
     Future.delayed(widget.delay, () {
       if (mounted) {
@@ -110,7 +110,7 @@ class BouncyButton extends StatefulWidget {
   final VoidCallback? onPressed;
   final EdgeInsetsGeometry? padding;
   final BoxDecoration? decoration;
-  
+
   const BouncyButton({
     super.key,
     required this.child,
@@ -127,7 +127,7 @@ class _BouncyButtonState extends State<BouncyButton>
     with SingleTickerProviderStateMixin {
   late AnimationController _controller;
   late Animation<double> _scaleAnimation;
-  
+
   @override
   void initState() {
     super.initState();
@@ -135,7 +135,7 @@ class _BouncyButtonState extends State<BouncyButton>
       duration: const Duration(milliseconds: 200),
       vsync: this,
     );
-    
+
     _scaleAnimation = Tween<double>(
       begin: 1.0,
       end: 0.95,
@@ -144,26 +144,26 @@ class _BouncyButtonState extends State<BouncyButton>
       curve: Curves.easeInOut,
     ));
   }
-  
+
   @override
   void dispose() {
     _controller.dispose();
     super.dispose();
   }
-  
+
   void _handleTapDown(TapDownDetails details) {
     _controller.forward();
   }
-  
+
   void _handleTapUp(TapUpDetails details) {
     _controller.reverse();
     widget.onPressed?.call();
   }
-  
+
   void _handleTapCancel() {
     _controller.reverse();
   }
-  
+
   @override
   Widget build(BuildContext context) {
     return GestureDetector(
@@ -193,7 +193,7 @@ class GravityAnimation extends StatefulWidget {
   final double gravity;
   final double bounceFactor;
   final double initialVelocity;
-  
+
   const GravityAnimation({
     super.key,
     required this.child,
@@ -221,7 +221,7 @@ class _GravityAnimationState extends State<GravityAnimation>
       vsync: this,
       duration: const Duration(seconds: 10),
     )..addListener(_updatePhysics);
-    
+
     _controller.repeat();
   }
 
@@ -229,15 +229,15 @@ class _GravityAnimationState extends State<GravityAnimation>
     setState(() {
       // 속도 업데이트 (중력 적용)
       _velocity += widget.gravity * 0.016; // 60fps 가정
-      
+
       // 위치 업데이트
       _position += _velocity;
-      
+
       // 바닥 충돌 감지
       if (_position >= _floor) {
         _position = _floor;
         _velocity = -_velocity * widget.bounceFactor;
-        
+
         // 너무 작은 바운스는 멈춤
         if (_velocity.abs() < 1) {
           _velocity = 0;
@@ -266,7 +266,7 @@ class RippleAnimation extends StatefulWidget {
   final Widget child;
   final Color rippleColor;
   final Duration duration;
-  
+
   const RippleAnimation({
     super.key,
     required this.child,
@@ -290,7 +290,7 @@ class _RippleAnimationState extends State<RippleAnimation>
       duration: widget.duration,
       vsync: this,
     );
-    
+
     _animation = Tween<double>(
       begin: 0.0,
       end: 1.0,
@@ -325,8 +325,8 @@ class _RippleAnimationState extends State<RippleAnimation>
                 height: 100 + 200 * _animation.value,
                 decoration: BoxDecoration(
                   shape: BoxShape.circle,
-                  color: widget.rippleColor.withValues(alpha: 
-                    (1 - _animation.value) * 0.3,
+                  color: widget.rippleColor.withValues(
+                    alpha: (1 - _animation.value) * 0.3,
                   ),
                 ),
               );
@@ -337,4 +337,4 @@ class _RippleAnimationState extends State<RippleAnimation>
       ),
     );
   }
-}
+}