feat(战斗系统): 添加招架球子弹和循环计时器功能

实现新的招架球子弹类型(ParryBallBullet)及其相关行为
新增CycleTimer类用于管理子弹的周期性运动
在EntityBase中添加计时器管理功能，支持创建和应用周期计时器
添加招架球子弹的资源文件和相关配置

scripts/Contents/Bullets/Parrier.gd

@@ -10,3 +10,13 @@ func hitBullet(bullet: BulletBase):
 			eff.modulate = bullet.modulate.blend(bullet.texture.modulate)
 			eff.shot()
 			bullet.tryDestroy()
+			var cycler = launcher.getOrCreateCycleTimer("parry", 2000, 100)
+			if len(cycler.bullets) < 5:
+				for b in BulletBase.generate(
+					ComponentManager.getBullet("ParryBall"),
+					launcher,
+					position,
+					0
+				):
+					if b is ParryBallBullet:
+						pass

scripts/Contents/Bullets/ParryBall.gd

@@ -0,0 +1,11 @@
+extends BulletBase
+class_name ParryBallBullet
+
+var cycler: CycleTimer
+
+func spawn():
+	cycler = launcher.getOrCreateCycleTimer("parry")
+	cycler.host(self )
+func ai():
+	PresetBulletAI.selfRotate(self , 5)
+	hitbox.disabled = !launcher.sprinting

scripts/Contents/Bullets/ParryBall.gd.uid

@@ -0,0 +1 @@
+uid://6to3ptrfe6dr

scripts/Statemachine/CycleTimer.gd

@@ -0,0 +1,23 @@
+class_name CycleTimer
+
+@export var period: float = 1
+
+var startTime: float = 0
+var running: bool = false
+var distance: float = 200
+var bullets: Array[BulletBase] = []
+
+func start():
+	startTime = Time.get_ticks_msec()
+	running = true
+func lifetime():
+	return Time.get_ticks_msec() - startTime
+func periodPercent(count: int):
+	return lifetime() / period * deg_to_rad(360) - deg_to_rad(360.0 * count / len(bullets))
+func apply():
+	bullets = bullets.filter(is_instance_valid)
+	for index in len(bullets):
+		var bullet = bullets[index]
+		bullet.position = bullet.launcher.position + Vector2.from_angle(periodPercent(index)) * distance
+func host(bullet: BulletBase):
+	bullets.append(bullet)

scripts/Statemachine/CycleTimer.gd.uid

@@ -0,0 +1 @@
+uid://b3k5h2vs6uwi2

scripts/Statemachine/EntityBase.gd

@@ -112,6 +112,7 @@ var weaponBag: Array[String] = []
 var canRunAi: bool = true
 var currentStage: int = 0
 var spawnTime: float = 0
+var cycleTimers: Dictionary = {}
 
 func _ready():
 	if useStatic:
@@ -199,8 +200,19 @@ func _physics_process(_delta: float) -> void:
 	move_and_slide()
 	storeEnergy(randf_range(0.01, 0.05 + fields.get(FieldStore.Entity.ENERGY_REGENERATION) - 1), true)
 	trailParticle.emitting = trailing
+	for cycler in cycleTimers.values():
+		if cycler is CycleTimer:
+			cycler.apply()
 
 # 通用方法
+func getOrCreateCycleTimer(timerName: String, period: float = 1000, distance: float = 200, start: bool = true) -> CycleTimer:
+	if !cycleTimers.has(timerName):
+		var newTimer = CycleTimer.new()
+		newTimer.period = period
+		newTimer.distance = distance
+		if start: newTimer.start()
+		cycleTimers[timerName] = newTimer
+	return cycleTimers[timerName]
 func initHealth(maxHealth: float):
 	fields[FieldStore.Entity.MAX_HEALTH] = maxHealth
 	health = maxHealth
@@ -276,7 +288,7 @@ func bulletHit(bullet: BulletBase, crit: bool):
 	healthChanged.emit(health)
 	DamageLabel.create(damage, crit || perfectMiss, damageAnchor.global_position + MathTool.sampleInCircle(GameRule.damageLabelSpawnOffset))
 	if isBoss and bullet.launcher.isPlayer():
-		bullet.launcher.setBoss(self)
+		bullet.launcher.setBoss(self )
 	if health <= 0:
 		if isBoss:
 			bullet.launcher.storeEnergy(energy * 0.35)
@@ -324,7 +336,7 @@ func tryAttack(type: int, needChargeUp: bool = false):
 			await EffectController.create(ComponentManager.getEffect("AttackStar"), damageAnchor.global_position).shot()
 			charginup = false
 		if isPlayer() and !isSummon():
-			if await weapon.tryAttack(self):
+			if await weapon.tryAttack(self ):
 				weapon.playSound("attack")
 		else:
 			if await attack(type):