feat: 添加激光子弹功能，更新相关资源和着色器

scripts/Statemachine/BulletBase.gd

@@ -25,7 +25,8 @@ func _process(_delta: float) -> void:
 		if position.distance_to(spawnInWhere) >= lifeDistance:
 			destroy()
 func _physics_process(_delta: float) -> void:
-	ai()
+	if is_instance_valid(launcher) and (launcher.isPlayer() or is_instance_valid(launcher.currentFocusedBoss)):
+		ai()
 
 func hit(target: Node):
 	var entity: EntityBase = EntityTool.fromHurtbox(target)

scripts/Statemachine/ItemShow.gd

@@ -8,6 +8,6 @@ class_name ItemShow
 @onready var avatarTexture: TextureRect = $"%avatar"
 @onready var countLabel: Label = $"%count"
 
-func _ready():
+func _physics_process(_delta):
 	avatarTexture.texture = ItemStore.getTexture(type)
 	countLabel.text = str(count)