feat(武器): 增强HXD武器效果并调整MTY角色属性

为HXD武器添加同类敌人额外暴击伤害效果，并修正反弹次数描述
调整MTY角色的攻击冷却时间并优化冲刺逻辑

scripts/Contents/Bullets/HXD.gd

@@ -3,12 +3,17 @@ class_name HXDBullet
 
 var bouncedTime: int = 0
 var maxBouncedTime: int = 0
+var lastHit: EntityBase
 
 func spawn():
 	texture.play(str(randi_range(0, 2)))
 func ai():
 	PresetBulletAI.forward(self, rotation)
 func succeedToHit(_dmg: float, entity: EntityBase):
+	if is_instance_valid(lastHit):
+		if lastHit.get_class() == entity.get_class():
+			entity.bulletHit(self, true)
+	lastHit = entity
 	if bouncedTime < maxBouncedTime:
 		var newEntity = EntityTool.findClosetEntity(position, get_tree(), !launcher.isPlayer(), launcher.isPlayer(), [entity])
 		if is_instance_valid(newEntity):

scripts/Contents/Characters/MTY.gd

@@ -4,7 +4,7 @@ class_name MTY
 func register():
 	fields[FieldStore.Entity.MAX_HEALTH] = 400
 	fields[FieldStore.Entity.MOVEMENT_SPEED] = 0.9
-	attackCooldownMap[0] = 1000
+	attackCooldownMap[0] = 2000
 	attackCooldownMap[1] = 250
 	sprintMultiplier = 5
 func spawn():
@@ -22,5 +22,6 @@ func attack(type: int):
 func sprint():
 	var target = BulletTool.findClosetBulletCanDamage(position, get_tree(), self)
 	if is_instance_valid(target):
-		var dir = (target.position - position).rotated(MathTool.randomChoiceFrom([-1, 1]) * deg_to_rad(90))
-		move(dir.normalized() * sprintMultiplier, true)
+		if position.distance_to(target.position) <= 200:
+			var dir = (target.position - position).rotated(MathTool.randomChoiceFrom([-1, 1]) * deg_to_rad(90))
+			move(dir.normalized() * sprintMultiplier, true)