feat(武器系统): 完善武器获取和提炼逻辑

- 在WeaponShow.gd中修改操作标签文本为"获得武器"和"提炼灵魂"
- 在Feed.gd中添加武器获取逻辑，区分已有武器和新增武器情况
- 在EntityBase.gd中重构武器图标更新逻辑，提取为rebuildWeaponIcons方法

scripts/Statemachine/EntityBase.gd

@@ -85,7 +85,7 @@ var inventoryMax = {
 @onready var stageAnimator: AnimationPlayer = $"%stageAnimator"
 @onready var damageAnchor: Node2D = $"%damageAnchor"
 @onready var trailParticle: GPUParticles2D = $"%trailParticle"
-@onready var weaponStore = $"%weaponStore"
+@onready var weaponStore: Node2D = $"%weaponStore"
 var statebar: EntityStateBar
 
 var health: float = 0
@@ -127,10 +127,7 @@ func _ready():
 				else:
 					UIState.energyPercent.setCurrent(newEnergy)
 		)
-		for i in weapons:
+		rebuildWeaponIcons()
-			var icon: SkillIcon = ComponentManager.getUIComponent("SkillIcon").instantiate()
-			icon.weapon = i
-			UIState.skillIconContainer.add_child(icon)
 	else:
 		if !currentFocusedBoss:
 			currentFocusedBoss = get_tree().get_nodes_in_group("players")[0]
@@ -174,6 +171,14 @@ func _physics_process(_delta: float) -> void:
 	trailParticle.emitting = trailing
 
 # 通用方法
+func rebuildWeaponIcons():
+	if isPlayer():
+		for i in UIState.skillIconContainer.get_children():
+			i.queue_free()
+		for i in weapons:
+			var icon: SkillIcon = ComponentManager.getUIComponent("SkillIcon").instantiate()
+			icon.weapon = i
+			UIState.skillIconContainer.add_child(icon)
 func timeLived():
 	return WorldManager.getTime() - spawnTime
 func setStage(stage: int):

scripts/Statemachine/WeaponShow.gd

@@ -21,12 +21,12 @@ func _ready():
 	nameLabel.text = weaponInstance.displayName
 	soulShow.count = weaponInstance.soulLevel
 	if operation == Operation.GET:
-		operationLabel.text = "获得"
+		operationLabel.text = "获得武器"
 		avatarRect.visible = true
 		nameLabel.visible = true
 		soulShow.visible = false
 	else:
-		operationLabel.text = "提炼"
+		operationLabel.text = "提炼灵魂"
 		avatarRect.visible = false
 		nameLabel.visible = false
 		soulShow.visible = true

scripts/Structs/Feed.gd

@@ -51,6 +51,18 @@ func apply(entity: EntityBase):
 			if !applier or applier.call(entity, value):
 				entity.fields[field] += value
 				entity.fields[field] = clamp(entity.fields[field], 0, FieldStore.entityMaxValueMap.get(field, INF))
+		for i in weapons:
+			var instance = i.instantiate() as Weapon
+			if UIState.player.weaponBag.has(instance.displayName):
+				UIState.player.getItem({
+					ItemStore.ItemType.SOUL: instance.soulLevel
+				})
+			else:
+				instance.hide()
+				entity.weapons.append(instance)
+				entity.weaponBag.append(instance.displayName)
+				entity.weaponStore.add_child(instance)
+				entity.rebuildWeaponIcons()
 		hide()
 	selected.emit(allHave)
 	return allHave