feat(武器系统): 为链式枪和紫水晶子弹添加能量循环机制

- 在紫水晶子弹类中添加能量循环相关变量和方法
- 修改链式枪子弹生成逻辑以传递能量循环属性
- 为链式枪武器添加5个新的升华选项，包括能量回收功能
- 更新攻击方法以处理新增的穿透和能量循环属性

scripts/Contents/Bullets/ChainGun.gd

@@ -1,21 +1,27 @@
 extends BulletBase
+class_name ChainGunBullet
 
 var count: int = 0
 var splits: float = 0
+var cycleRate: float = 0
+var cycleCount: float = 0
 
 @onready var anchor: Node2D = $"%anchor"
 
 func spawn():
-	for j in count:
-		for i in BulletBase.generate(
+	for i in count:
+		for bullet in BulletBase.generate(
 			ComponentManager.getBullet("PurpleCrystalSmall"),
 			launcher,
 			anchor.global_position,
 			rotation + deg_to_rad(splits * randf_range(-1, 1))
 		):
-			if i is BulletBase:
-				var dir = Vector2.from_angle(i.rotation).rotated(deg_to_rad(-90))
-				i.baseDamage = baseDamage
-				i.position += dir * (count - j * 2) * 10 / 2
+			if bullet is PurpleCrystalBullet:
+				var dir = Vector2.from_angle(bullet.rotation).rotated(deg_to_rad(-90))
+				bullet.baseDamage = baseDamage
+				bullet.position += dir * (count - i * 2) * 10 / 2
+				bullet.penerate += penerate
+				bullet.cycleRate = cycleRate
+				bullet.cycleCount = cycleCount
 func ai():
 	PresetBulletAI.lockLauncher(self , launcher, true)

scripts/Contents/Bullets/PurpleCrystal.gd

@@ -1,4 +1,9 @@
 extends BulletBase
+class_name PurpleCrystalBullet
+
+var cycleRate: float = 0
+var cycleCount: float = 0
+var cycled: bool = false
 
 func ai():
 	PresetBulletAI.forward(self , rotation)
@@ -6,3 +11,7 @@ func destroy(_beacuseMap: bool):
 	var eff = EffectController.create(ComponentManager.getEffect("PurpleCrystalExplosion"), global_position)
 	eff.rotation = rotation
 	eff.shot()
+func succeedToHit(_dmg: float, entity: EntityBase):
+	if MathTool.rate(cycleRate):
+		entity.storeEnergy(cycleCount)
+		cycled = true

scripts/Contents/Weapons/ChainGun.gd

@@ -1,15 +1,63 @@
 @tool
 extends Weapon
 
+func sublimateOptions() -> Array[SublimateOption]:
+	return [
+		SublimateOption.new(
+			"聚焦校准",
+			"散射-2°",
+			func(w: Weapon, _e):
+				w.addStoreExtra("split", -2),
+			1,
+			CategoryStore.Quality.RARE
+		),
+		SublimateOption.new(
+			"晶核过载",
+			"伤害+5，但散射+4°",
+			func(w: Weapon, _e):
+				w.addStoreExtra("atk", 5)
+				w.addStoreExtra("split", 4),
+			1,
+			CategoryStore.Quality.LEGENDARY
+		),
+		SublimateOption.new(
+			"弹头塑形",
+			"穿透+5%",
+			func(w: Weapon, _e):
+				w.addStoreExtra("penerate", 0.1),
+			1,
+			CategoryStore.Quality.EPIC
+		),
+		SublimateOption.new(
+			"晶能循环",
+			"能量消耗-0.05",
+			func(_w, _e):
+				needEnergy -= 0.05,
+			1,
+			CategoryStore.Quality.COMMON
+		),
+		SublimateOption.new(
+			"动能压制",
+			"命中敌人时有5%概率回收0.25点能量",
+			func(w: Weapon, _e):
+				w.addStoreExtra("cycleRate", 0.05)
+				w.addStoreExtra("cycleCount", 0.25),
+			1,
+			CategoryStore.Quality.COMMON
+		),
+	]
 func update(to, origin, _entity):
 	origin["atk"] += 1 * to * soulLevel
 	origin["count"] = 1 * soulLevel
 	origin["split"] /= 1 + 0.005 * to * soulLevel
 	return origin
 func attack(entity: EntityBase):
-	for i in BulletBase.generate(ComponentManager.getBullet("ChainGun"), entity, entity.texture.global_position, (get_global_mouse_position() - entity.texture.global_position).angle()):
-		if i is BulletBase:
-			i.baseDamage = readStore("atk")
-			i.count = floor(readStore("count"))
-			i.splits = readStore("split")
+	for bullet in BulletBase.generate(ComponentManager.getBullet("ChainGun"), entity, entity.texture.global_position, (get_global_mouse_position() - entity.texture.global_position).angle()):
+		if bullet is ChainGunBullet:
+			bullet.baseDamage = readStore("atk")
+			bullet.count = floor(readStore("count"))
+			bullet.splits = readStore("split")
+			bullet.penerate += readStoreExtra("penerate")
+			bullet.cycleRate = readStoreExtra("cycleRate")
+			bullet.cycleCount = readStoreExtra("cycleCount")
 	return true