feat(物品收集): 为物品掉落添加收集动画效果

添加动画播放器组件并实现收集时的缩放淡出动画效果，提升物品收集时的视觉反馈

components/UI/ItemDropped.tscn

@@ -1,8 +1,87 @@
-[gd_scene load_steps=13 format=3 uid="uid://cxcvc1rjvm8i2"]
+[gd_scene load_steps=16 format=3 uid="uid://cxcvc1rjvm8i2"]
 
 [ext_resource type="Script" path="res://scripts/Statemachine/ItemDropped.gd" id="1_v2djl"]
 [ext_resource type="Texture2D" uid="uid://bks8jmctleina" path="res://resources/items/baseball.svg" id="2_4hl42"]
 
+[sub_resource type="Animation" id="Animation_l0b83"]
+resource_name = "collect"
+length = 0.3
+tracks/0/type = "bezier"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath(".:scale:x")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"handle_modes": PackedInt32Array(0, 0),
+"points": PackedFloat32Array(0.5, -0.15, 0, 0.15, 0, 2, -0.15, 0, 0.15, 0),
+"times": PackedFloat32Array(0, 0.3)
+}
+tracks/1/type = "bezier"
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/path = NodePath(".:scale:y")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/keys = {
+"handle_modes": PackedInt32Array(0, 0),
+"points": PackedFloat32Array(0.5, -0.15, 0, 0.15, 0, 2, -0.15, 0, 0.15, 0),
+"times": PackedFloat32Array(0, 0.3)
+}
+tracks/2/type = "bezier"
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/path = NodePath(".:modulate:a")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/keys = {
+"handle_modes": PackedInt32Array(0, 0),
+"points": PackedFloat32Array(1, -0.15, 0, 0.15, 0, 0, -0.15, 0, 0.15, 0),
+"times": PackedFloat32Array(0, 0.3)
+}
+
+[sub_resource type="Animation" id="Animation_5i70v"]
+length = 0.001
+tracks/0/type = "bezier"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath(".:scale:x")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"handle_modes": PackedInt32Array(0),
+"points": PackedFloat32Array(0.5, -0.15, 0, 0.15, 0),
+"times": PackedFloat32Array(0)
+}
+tracks/1/type = "bezier"
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/path = NodePath(".:scale:y")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/keys = {
+"handle_modes": PackedInt32Array(0),
+"points": PackedFloat32Array(0.5, -0.15, 0, 0.15, 0),
+"times": PackedFloat32Array(0)
+}
+tracks/2/type = "bezier"
+tracks/2/imported = false
+tracks/2/enabled = true
+tracks/2/path = NodePath(".:modulate:a")
+tracks/2/interp = 1
+tracks/2/loop_wrap = true
+tracks/2/keys = {
+"handle_modes": PackedInt32Array(0),
+"points": PackedFloat32Array(1, -0.15, 0, 0.15, 0),
+"times": PackedFloat32Array(0)
+}
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_2q7p1"]
+_data = {
+"RESET": SubResource("Animation_5i70v"),
+"collect": SubResource("Animation_l0b83")
+}
+
 [sub_resource type="CircleShape2D" id="CircleShape2D_7lt1c"]
 radius = 2.0
 
@@ -57,6 +136,12 @@ unique_name_in_owner = true
 scale = Vector2(0.5, 0.5)
 texture = ExtResource("2_4hl42")
 
+[node name="animator" type="AnimationPlayer" parent="texture"]
+unique_name_in_owner = true
+libraries = {
+"": SubResource("AnimationLibrary_2q7p1")
+}
+
 [node name="hitbox" type="CollisionShape2D" parent="."]
 shape = SubResource("CircleShape2D_7lt1c")
 

scripts/Statemachine/ItemDropped.gd

@@ -6,6 +6,7 @@ var stackCount: int = 1
 var targetPlayer: EntityBase = null
 
 @onready var texture: Sprite2D = $"%texture"
+@onready var animator: AnimationPlayer = $"%animator"
 
 func _ready():
 	apply_force(MathTool.randv2_range(30000), MathTool.randv2_range(10))
@@ -18,7 +19,7 @@ func _physics_process(_delta):
 		apply_central_force((targetPlayer.position - position).normalized() * 1000)
 		if position.distance_to(targetPlayer.position) < 60:
 			targetPlayer.collectItem(item, stackCount)
-			queue_free()
+			collect()
 
 func findPlayer() -> EntityBase:
 	var result = null
@@ -29,6 +30,10 @@ func findPlayer() -> EntityBase:
 				lastDistance = position.distance_to(player.position)
 				result = player
 	return result
+func collect():
+	animator.play("collect")
+	await animator.animation_finished
+	queue_free()
 
 static func generate(
 		itemType: ItemStore.ItemType,