feat(子弹系统): 完善乾坤剑和格挡子弹的逻辑

添加乾坤剑的追踪和攻击逻辑，包括命中目标后的效果
调整格挡子弹的伤害值和生成气的逻辑
优化子弹动画和碰撞箱设置
为乾坤剑添加基础伤害和穿透属性

scripts/Contents/Bullets/Parrier.gd

@@ -3,17 +3,19 @@ class_name ParrierBullet
 
 @export var parryRate: float = 1
 
-func hitBullet(bullet: BulletBase):
-	if BulletTool.canDamage(bullet, launcher):
+func hitBullet(bullet: BulletBase): # 当前子弹与其他子弹相撞
+	if BulletTool.canDamage(bullet, launcher): # 其他子弹可以使当前子弹的发射者受伤吗？
 		if MathTool.rate(parryRate):
-			var eff = EffectController.create(ComponentManager.getEffect("Parry"), position + (bullet.position - position).normalized() * 150)
+			# 生成格挡特效
+			var eff = EffectController.create(ComponentManager.getEffect("Parry"), position + (bullet.position - position).normalized() * 150) # 从子弹位置，面向其他子弹的方向前进150
 			eff.modulate = bullet.modulate.blend(bullet.texture.modulate)
 			eff.shot()
+			# 摧毁其他子弹
 			bullet.tryDestroy()
 			var cycler = launcher.getOrCreateCycleTimer("parry", 2000, 100)
-			if len(cycler.bullets) < 5:
+			if len(cycler.bullets) < 5: # 玩家最多只能拥有5点气
 				for b in BulletBase.generate(
-					ComponentManager.getBullet("ParryBall"),
+					ComponentManager.getBullet("ParryBall"), # 生成气的子弹
 					launcher,
 					position,
 					0

scripts/Contents/Bullets/ParryBall.gd

@@ -6,10 +6,13 @@ var cycler: CycleTimer
 func spawn():
 	cycler = launcher.getOrCreateCycleTimer("parry")
 	cycler.host(self )
+	launcher.sprintMultiplier += 1
+func destroy(_beacuseMap: bool):
+	launcher.sprintMultiplier -= 1
 func ai():
 	PresetBulletAI.selfRotate(self , 5)
-	hitbox.disabled = !launcher.sprinting
-func succeedToHit(_dmg: float, entity: EntityBase):
+	hitbox.disabled = !launcher.sprinting # 玩家在冲刺时气的碰撞箱才生效
+func succeedToHit(_dmg: float, entity: EntityBase): # 当撞到敌人时
 	for bullet in BulletBase.generate(
 		ComponentManager.getBullet("QKSword"),
 		launcher,
@@ -19,4 +22,4 @@ func succeedToHit(_dmg: float, entity: EntityBase):
 		if bullet is QKSwordBullet:
 			bullet.position = entity.texture.global_position + MathTool.sampleInRing(50, 200)
 			bullet.tracer = entity
-			bullet.look_at(entity.position)
+			bullet.look_at(entity.getTrackingAnchor()) # 生成的乾坤剑面向敌人

scripts/Contents/Bullets/QKSword.gd

@@ -2,9 +2,20 @@ extends BulletBase
 class_name QKSwordBullet
 
 var tracer: EntityBase
+var attackedTracer: bool = false
 
 func ai():
-	if is_instance_valid(tracer):
-		look_at(tracer.position)
+	if is_instance_valid(tracer) && !attackedTracer:
+		look_at(tracer.getTrackingAnchor())
 	if timeLived() > 1000:
-		PresetBulletAI.forward(self , rotation)
+		PresetBulletAI.forward(self , rotation) # 前进
+		hitbox.disabled = false
+	else:
+		hitbox.disabled = true
+func succeedToHit(_dmg: float, entity: EntityBase):
+	if entity == tracer:
+		attackedTracer = true # 只需要命中一次目标就不需要继续前进了
+	EffectController.create(
+		ComponentManager.getEffect("CatBoom"),
+		entity.texture.global_position
+	).shot()