feat(战斗系统): 添加小鸡冲刺攻击技能及相关特效

实现小鸡的冲刺攻击能力，包括：
1. 新增ChickSprint子弹类型及场景
2. 为EntityBase添加拖尾粒子效果
3. 添加攻击蓄力特效和音效
4. 调整小鸡的攻击冷却时间和冲刺倍率
5. 优化TickTool工具类添加until方法
6. 修改世界背景z-index避免遮挡

调整战斗平衡性：
1. 降低默认冲刺倍率
2. 修改测试波次配置
3. 增加新的攻击方式选项

scripts/Contents/Bullets/ChickSprint.gd

@@ -0,0 +1,11 @@
+extends BulletBase
+class_name ChickSprint
+
+func register():
+	speed = 0
+	damage = 30
+	penerate = 1
+func ai():
+	PresetsAI.lockLauncher(self, launcher, true)
+	if !launcher.sprinting:
+		tryDestroy()

scripts/Contents/Characters/Chick.gd

@@ -8,9 +8,11 @@ const laserCount = 4
 func register():
 	fields[FieldStore.Entity.MAX_HEALTH] = 2000
 	fields[FieldStore.Entity.MOVEMENT_SPEED] = 0.35
-	attackCooldownMap[0] = 2000
+	attackCooldownMap[0] = 500
 	attackCooldownMap[1] = 6000
 	attackCooldownMap[2] = 100
+	attackCooldownMap[3] = 500
+	sprintMultiplier = 60
 func spawn():
 	texture.play("walk")
 
@@ -21,7 +23,8 @@ func ai():
 	elif currentFocusedBoss.position.distance_to(position) < 700:
 		tryAttack(1)
 	else:
-		tryAttack(0)
+		var method = MathTool.randc_from([0, 3])
+		tryAttack(method, method == 3)
 func attack(type):
 	if type == 0:
 		var weaponPos = findWeaponAnchor("normal")
@@ -36,4 +39,11 @@ func attack(type):
 		firepot.global_rotation = target
 		firepot.shot()
 		BulletBase.generate(preload("res://components/Bullets/FireScan.tscn"), self, weaponPos, target)
+	elif type == 3:
+		trailing = true
+		BulletBase.generate(preload("res://components/Bullets/ChickSprint.tscn"), self, position, 0)
+		await trySprint()
+		trailing = false
 	return true
+func sprint():
+	move((currentFocusedBoss.position - position).normalized() * sprintMultiplier, true)

scripts/Contents/Wave.gd

@@ -11,8 +11,9 @@ var per: int = 0
 static var current: int = 0
 static var data: Array[Wave] = [
 	# entity, minCount, maxCount, isBoss, from, to, per
-	create(preload("res://components/Characters/Hen.tscn"), 1, 5, false, 0, INF, 1),
-	create(preload("res://components/Characters/Chick.tscn"), 0, 0, true, 8, INF, 6),
+	# create(preload("res://components/Characters/Hen.tscn"), 1, 5, false, 0, INF, 1),
+	# create(preload("res://components/Characters/Chick.tscn"), 0, 0, true, 8, INF, 6),
+	create(preload("res://components/Characters/Chick.tscn"), 1, 1, true, 0, INF, 1),
 ]
 
 static func create(

scripts/Statemachine/EffectController.gd

@@ -2,12 +2,17 @@ extends Node2D
 class_name EffectController
 
 @export var oneShot: bool = true
+@export var spawnSound: String = ""
 
 @onready var particles: GPUParticles2D = $"%particles"
+@onready var sounds = $"%sounds"
 
 func _ready():
 	particles.emitting = false
 	particles.one_shot = oneShot
+	var sound = sounds.get_node_or_null(spawnSound)
+	if sound and sound.stream:
+		sound.play()
 func shot():
 	var cloned = particles.duplicate() as GPUParticles2D
 	cloned.emitting = true

scripts/Statemachine/EntityBase.gd

@@ -55,7 +55,7 @@ var inventoryMax = {
 @export var defaultCooldownUnit: float = 100
 @export var isBoss: bool = false
 @export var displayName: String = "未知实体"
-@export var sprintMultiplier: float = 4
+@export var sprintMultiplier: float = 3
 @export var drops: Array[ItemStore.ItemType] = []
 @export var dropCounts: Array[Vector2] = []
 @export var appleCount: Vector2i = Vector2(0, 2) # 死亡后掉落的苹果数量
@@ -67,15 +67,18 @@ var inventoryMax = {
 @onready var sounds: Node2D = $"%sounds"
 @onready var hurtAnimator: AnimationPlayer = $"%hurtAnimator"
 @onready var damageAnchor: Node2D = $"%damageAnchor"
+@onready var trailParticle: GPUParticles2D = $"%trailParticle"
 var statebar: EntityStateBar
 
 var health: float = 0
 var energy: float = 0
 var sprinting: bool = false
+var trailing: bool = false
 
 var lastDirection: int = 1
 var lastAttack: int = 0
 var currentFocusedBoss: EntityBase = null
+var charginup: bool = false
 
 func _ready():
 	register()
@@ -127,10 +130,11 @@ func _physics_process(_delta: float) -> void:
 			sprinting = false
 	else:
 		velocity = Vector2.ZERO
-		if isPlayer() or is_instance_valid(currentFocusedBoss):
+		if (isPlayer() or is_instance_valid(currentFocusedBoss)) and not charginup:
 			ai()
 	move_and_slide()
 	storeEnergy(0.01 * fields.get(FieldStore.Entity.ENERGY_REGENERATION))
+	trailParticle.emitting = trailing
 
 # 通用方法
 func applyLevel():
@@ -187,16 +191,22 @@ func startCooldown(type: int):
 	if state:
 		lastAttack = WorldManager.getTime()
 	return state
-func tryAttack(type: int):
+func tryAttack(type: int, needChargeUp: bool = false):
 	var state = startCooldown(type)
 	if state:
-		if attack(type):
+		if needChargeUp:
+			charginup = true
+			await EffectController.create(preload("res://components/Effects/AttackStar.tscn"), damageAnchor.global_position).shot()
+			charginup = false
+		else:
 			playSound("attack" + str(type))
+		attack(type)
 	return state
 func trySprint():
 	playSound("sprint")
 	sprint()
 	sprinting = true
+	await TickTool.until(func(): return !sprinting)
 func tryDie(by: BulletBase):
 	for drop in range(min(len(drops), len(dropCounts))):
 		var item = drops[drop]

scripts/Tools/TickTool.gd

@@ -5,3 +5,6 @@ static func millseconds(ms: int):
 static func frame(count: int = 1):
 	for i in range(count):
 		await WorldManager.tree.physics_frame
+static func until(predicate: Callable):
+	while not predicate.call():
+		await frame()