feat: 更新饲料和物品显示逻辑，添加香蕉饲料场景，重构字段显示功能

scripts/Statemachine/BulletBase.gd

@@ -56,7 +56,7 @@ static func generate(
 	var instance: BulletBase = bullet.instantiate()
 	instance.launcher = launchBy
 	instance.position = spawnPosition
-	instance.rotation = spawnRotation
+	instance.rotation = spawnRotation + randf_range(-launchBy.fields.get(FieldStore.Entity.OFFSET_SHOOT), launchBy.fields.get(FieldStore.Entity.OFFSET_SHOOT))
 	if addToWorld:
 		WorldManager.rootNode.add_child(instance)
 	return instance

scripts/Statemachine/EntityBase.gd

@@ -9,6 +9,7 @@ var fields = {
 	FieldStore.Entity.CRIT_RATE: 0.05,
 	FieldStore.Entity.CRIT_DAMAGE: 1,
 	FieldStore.Entity.PENERATE: 0,
+	FieldStore.Entity.OFFSET_SHOOT: 3
 }
 
 @export var cooldownUnit: float = 100 # 100毫秒每次攻击

scripts/Statemachine/FieldShow.gd

@@ -1,12 +1,21 @@
 @tool
 extends HBoxContainer
+class_name FieldShow
 
 @export var field: FieldStore.Entity = FieldStore.Entity.MAX_HEALTH
-@export var value: String = ""
+@export var value: float = 0
 
 @onready var nameLabel: Label = $"%name"
 @onready var valueLabel: Label = $"%value"
 
-func _process(_delta):
+func _ready():
 	nameLabel.text = FieldStore.entityMap[field]
-	valueLabel.text = value
+	var formattedValue: String
+	var dataType = FieldStore.entityMapType[field]
+	if dataType == FieldStore.DataType.VALUE:
+		formattedValue = str(value)
+	elif dataType == FieldStore.DataType.ANGLE:
+		formattedValue = str(value) + "°"
+	elif dataType == FieldStore.DataType.PERCENT:
+		formattedValue = "%.1f" % (value * 100) + "%"
+	valueLabel.text = formattedValue

scripts/Statemachine/ItemShow.gd

@@ -1,5 +1,6 @@
 @tool
 extends HBoxContainer
+class_name ItemShow
 
 @export var type: ItemStore.ItemType = ItemStore.ItemType.BASEBALL
 @export var count: int = 0
@@ -7,6 +8,6 @@ extends HBoxContainer
 @onready var avatarTexture: TextureRect = $"%avatar"
 @onready var countLabel: Label = $"%count"
 
-func _process(_delta):
+func _ready():
 	avatarTexture.texture = load("res://resources/items/%s.svg" % ItemStore.idMap[type])
 	countLabel.text = str(count)