feat(战斗系统): 改进攻击逻辑和Kernyr角色技能

重构tryAttack方法，将needChargeUp参数改为更灵活的chargeConfig配置
优化Kernyr角色的攻击2技能，改为持续旋转发射子弹

scripts/Contents/Characters/Kernyr.gd

@@ -3,6 +3,7 @@ class_name Kernyr
 
 var attack1Angle = 0
 var attack0State = 0
+var attack2Start = 0
 
 func register():
 	fields[FieldStore.Entity.MAX_HEALTH] = 2000
@@ -13,7 +14,7 @@ func register():
 	attackMutexes = [2]
 func ai():
 	for i in 3:
-		tryAttack(i)
+		tryAttack(i, [2])
 func attack(type: int):
 	if type == 0:
 		for i in randi_range(7, 16):
@@ -38,19 +39,26 @@ func attack(type: int):
 	elif type == 2:
 		var anchor = currentFocusedBoss.position
 		var radius = 600
-		await sprintTo(anchor + Vector2(0, -radius), 0.1)
-		await TickTool.millseconds(500)
-		await chargeUp()
 		var count = 10.0
-		for i in count:
-			await sprintTo(anchor + Vector2.from_angle(deg_to_rad(i / count * 360.0 - 90)) * radius, 0.5)
-			for bullet in BulletBase.generate(
-				ComponentManager.getBullet("Egg"),
-				self ,
-				position,
-				0
-			):
-				if bullet is EggBullet:
-					bullet.look_at(anchor)
+		var i = 0
+		var currentAngle = 0
+		var time = 500.0
+		await sprintTo(anchor + Vector2(0, -radius), 0.1)
+		attack2Start = timeLived()
+		while timeLived() - attack2Start <= time:
+			var targetAngle = deg_to_rad(i / count * 360.0 - 90)
+			currentAngle = deg_to_rad((timeLived() - attack2Start) / time * 360.0 - 90)
+			position = anchor + Vector2.from_angle(currentAngle) * radius
+			if currentAngle >= targetAngle:
+				i += 1
+				for bullet in BulletBase.generate(
+					ComponentManager.getBullet("Egg"),
+					self ,
+					position,
+					0
+				):
+					if bullet is EggBullet:
+						bullet.look_at(anchor)
+			await TickTool.frame()
 		await TickTool.millseconds(2000)
 		await chargeUp()