refactor(CameraManager): 重构相机震动系统并添加强度参数

- 移除shaking布尔变量，改用shakeIntensity控制震动强度
- 修改shake方法接受强度参数，支持叠加震动效果
- 简化震动逻辑，移除调试打印语句

feat(ItemDropped): 添加物品自动收集功能

- 当物品与玩家距离小于60时自动收集并销毁
- 调用玩家collectItem方法处理收集逻辑

refactor(EntityBase): 重构物品收集逻辑

- 将物品收集逻辑从信号回调移至collectItem方法
- 移除itemCollected信号及相关UI更新代码
- 简化hurtbox连接逻辑

style(World): 调整动画资源顺序

- 交换两个动画资源的定义顺序

scripts/Contents/Bullets/BigLaser.gd

@@ -2,7 +2,7 @@ extends BulletBase
 class_name BigLaser
 
 func spawn():
-	CameraManager.shake(5000)
+	CameraManager.shake(5000, 100)
 	CameraManager.playAnimation("bigLaser")
 func ai():
 	rotation = lerp_angle(rotation, ((get_global_mouse_position() - position).angle()), 0.1)

scripts/Statemachine/EntityBase.gd

@@ -7,8 +7,6 @@ signal healthChanged(health: float)
 
 signal energyChanged(energy: float)
 
-signal itemCollected(itemType: ItemStore.ItemType, amount: int)
-
 var fields = {
 	FieldStore.Entity.MAX_HEALTH: 100,
 	FieldStore.Entity.DAMAGE_MULTIPILER: 1,
@@ -76,24 +74,11 @@ func _ready():
 	if isPlayer():
 		statebar.levelLabels.hide()
 		UIState.player = self
-		hurtbox.body_entered.connect(
-			func(body):
-				if body is ItemDropped:
-					inventory[body.item] += body.stackCount
-					playSound("collect")
-					itemCollected.emit(body.item, body.stackCount)
-					body.queue_free()
-		)
 		energyChanged.connect(
 			func(newEnergy):
 				UIState.energyPercent.maxValue = fields.get(FieldStore.Entity.MAX_ENERGY)
 				UIState.energyPercent.setCurrent(newEnergy)
 		)
-		itemCollected.connect(
-			func(itemType, amount):
-				if MathTool.rate(GameRule.tipSpawnRateWhenGetDroppedItem):
-					UIState.itemCollect.add_child(ItemShow.generate(itemType, amount, true))
-		)
 	else:
 		currentFocusedBoss = get_tree().get_nodes_in_group("players")[0]
 		applyLevel()
@@ -166,6 +151,9 @@ func takeDamage(bullet: BulletBase, crit: bool):
 			bullet.launcher.storeEnergy(energy * 0.35)
 			bullet.launcher.setBoss(null)
 		tryDie(bullet)
+func collectItem(itemType: ItemStore.ItemType, amount: int):
+	inventory[itemType] += amount
+	playSound("collect")
 func storeEnergy(value: float):
 	energy += value * fields.get(FieldStore.Entity.ENERGY_MULTIPILER)
 	energyChanged.emit(energy)

scripts/Statemachine/ItemDropped.gd

@@ -16,6 +16,9 @@ func _physics_process(_delta):
 		targetPlayer = findPlayer()
 	if is_instance_valid(targetPlayer):
 		apply_central_force((targetPlayer.position - position).normalized() * 1000)
+		if position.distance_to(targetPlayer.position) < 60:
+			targetPlayer.collectItem(item, stackCount)
+			queue_free()
 
 func findPlayer() -> EntityBase:
 	var result = null

scripts/Tools/CameraManager.gd

@@ -2,11 +2,9 @@
 extends Camera2D
 class_name CameraManager
 
-@export var shakeOffset: float = 100
-
 @onready var animator: AnimationPlayer = $"%animator"
 
-var shaking: bool = false
+var shakeIntensity: float = 0
 
 static var instance: CameraManager = null
 
@@ -15,14 +13,11 @@ func _ready():
 func _physics_process(_delta):
 	if is_instance_valid(UIState.player):
 		position = UIState.player.position
-		if shaking:
-			position += MathTool.randv2_range(shakeOffset)
+		position += MathTool.randv2_range(shakeIntensity)
 
-static func shake(millseconds: int = 1000):
-	print("shake start")
-	instance.shaking = true
+static func shake(millseconds: int, intensity: float = 10):
+	instance.shakeIntensity += intensity
 	await TickTool.millseconds(millseconds)
-	instance.shaking = false
-	print("shake end")
+	instance.shakeIntensity -= intensity
 static func playAnimation(animation: String):
 	instance.animator.play(animation)