feat(战斗系统): 重构子弹追踪逻辑，使用实体当前焦点位置替代鼠标位置

修改所有子弹追踪逻辑，统一使用launcher.currentFocusedPosition作为目标位置
在EntityBase中新增currentFocusedPosition字段，用于存储当前焦点位置
调整MTY角色的攻击距离参数，使用常量定义最小招架和攻击距离

scripts/Contents/Characters/MTY.gd

@@ -1,6 +1,9 @@
 extends EntityBase
 class_name MTY
 
+var MIN_PARRY_DISTANCE = 300
+var MIN_ATTACK_DISTANCE = 400
+
 func register():
 	fields[FieldStore.Entity.MAX_HEALTH] = 400
 	fields[FieldStore.Entity.MOVEMENT_SPEED] = 0.9
@@ -13,24 +16,29 @@ func spawn():
 func ai():
 	PresetEntityAI.follow(self , currentFocusedBoss)
 	for i in 3:
-		tryAttack(i)
+		if i == 1:
+			var track = getTrackingAnchor()
+			if is_instance_valid(BulletTool.findClosetBulletCanDamage(track, get_tree(), self , MIN_PARRY_DISTANCE)):
+				tryAttack(1)
+		else:
+			tryAttack(i)
 func attack(type: int):
 	if type == 0:
 		trySprint()
 	elif type == 1:
 		var track = getTrackingAnchor()
-		var bullet = BulletTool.findClosetBulletCanDamage(track, get_tree(), self , 450)
+		var bullet = BulletTool.findClosetBulletCanDamage(track, get_tree(), self , MIN_PARRY_DISTANCE)
 		if is_instance_valid(bullet):
 			BulletBase.generate(ComponentManager.getBullet("Parrier"), self , track, track.angle_to_point(bullet.position))
 	elif type == 2:
 		if is_instance_valid(currentFocusedBoss):
 			var track = getTrackingAnchor()
-			if currentFocusedBoss.position.distance_to(track) <= 400:
+			if currentFocusedBoss.position.distance_to(track) <= MIN_ATTACK_DISTANCE:
 				BulletBase.generate(ComponentManager.getBullet("Parrier"), self , track, track.angle_to_point(currentFocusedBoss.position))
 	return true
 func sprint():
 	var track = getTrackingAnchor()
-	var target = BulletTool.findClosetBulletCanDamage(track, get_tree(), self , 300)
+	var target = BulletTool.findClosetBulletCanDamage(track, get_tree(), self , MIN_PARRY_DISTANCE)
 	if is_instance_valid(target):
 		var dir = (target.position - track).rotated(MathTool.randomChoiceFrom([-1, 1]) * deg_to_rad(90))
 		move(dir.normalized() * sprintMultiplier, true)

scripts/Contents/Characters/Rooster.gd

@@ -17,6 +17,7 @@ func register():
 	chargeParticle.emitting = false
 
 func ai():
+	currentFocusedPosition = get_global_mouse_position()
 	texture.play("walk")
 	var direction = Vector2(
 		Input.get_axis("m_left", "m_right"),