feat(战斗系统): 添加实体惯性系统并改进击退效果

为实体添加惯性系统，包括inertia属性和impluse方法
修改Parrier子弹碰撞时的击退逻辑，使用平方根计算更真实的冲击效果
调整Wave测试数据，在非发布版本使用测试Boss数据

scripts/Contents/Bullets/Parrier.gd

@@ -29,7 +29,7 @@ func hitBullet(bullet: BulletBase): # 当前子弹与其他子弹相撞
 			eff.rotation = position.angle_to_point(bullet.position)
 			eff.shot()
 			CameraManager.shake(200, 250)
-			launcher.position -= (bullet.position - position).normalized() * 50
+			launcher.impluse((position - bullet.position).normalized() * sqrt(bullet.speed) * 500)
 			# 摧毁其他子弹
 			bullet.tryDestroy()
 			var cycler = launcher.getOrCreateCycleTimer("parry", 2000, 100)

scripts/Contents/Wave.gd

@@ -50,7 +50,7 @@ static var WAVE_JUSTJOKE = [
 	Wave.create("Kernyr", 0, 0, true, 0, INF, 1),
 ]
 static var WAVE_EMPTY = []
-static var data = WAVE_NORMAL if WorldManager.isRelease() else WAVE_NORMAL
+static var data = WAVE_NORMAL if WorldManager.isRelease() else WAVE_TESTBOSS_KUKE
 
 static func create(
 		entity_: String,

scripts/Statemachine/EntityBase.gd

@@ -113,6 +113,7 @@ var canRunAi: bool = true
 var currentStage: int = 0
 var spawnTime: float = 0
 var cycleTimers: Dictionary = {}
+var inertia: Vector2 = Vector2.ZERO
 
 func _ready():
 	if useStatic:
@@ -197,6 +198,8 @@ func _physics_process(_delta: float) -> void:
 				ai()
 		elif isSummon():
 			ai()
+		velocity += inertia
+		inertia *= 0.9
 	move_and_slide()
 	storeEnergy(randf_range(0.01, 0.05 + fields.get(FieldStore.Entity.ENERGY_REGENERATION) - 1), true)
 	trailParticle.emitting = trailing
@@ -205,6 +208,8 @@ func _physics_process(_delta: float) -> void:
 			cycler.apply()
 
 # 通用方法
+func impluse(force: Vector2):
+	inertia += force
 func getOrCreateCycleTimer(timerName: String, period: float = 1000, distance: float = 200, start: bool = true) -> CycleTimer:
 	if !cycleTimers.has(timerName):
 		var newTimer = CycleTimer.new()