feat(掉落物): 将物品拾取半径改为可配置属性

将硬编码的物品拾取半径改为从FieldStore中获取的可配置属性，并增加默认值60。同时调整了EntityBase中的初始物品数量配置。

scripts/Statemachine/EntityBase.gd

@@ -37,19 +37,21 @@ var fields = {
 	FieldStore.Entity.ENERGY_MULTIPILER: 1,
 	FieldStore.Entity.SAVE_ENERGY: 1,
 	FieldStore.Entity.ENERGY_REGENERATION: 1,
+	# 掉落物
+	FieldStore.Entity.DROPPED_ITEM_COLLECT_RADIUS: 60,
 }
 var attackCooldownMap = {
 	0: 100
 }
 var inventory = {
-	ItemStore.ItemType.BASEBALL: 100,
-	ItemStore.ItemType.BASKETBALL: 100,
-	ItemStore.ItemType.APPLE: 5, # 初始苹果数量
+	ItemStore.ItemType.BASEBALL: 500,
+	ItemStore.ItemType.BASKETBALL: 500,
+	ItemStore.ItemType.APPLE: 5,
 }
 var inventoryMax = {
 	ItemStore.ItemType.BASEBALL: INF, # 无限
 	ItemStore.ItemType.BASKETBALL: INF,
-	ItemStore.ItemType.APPLE: 5, # 最多5个苹果
+	ItemStore.ItemType.APPLE: 5,
 }
 
 @export var defaultCooldownUnit: float = 100

scripts/Statemachine/ItemDropped.gd

@@ -23,7 +23,7 @@ func _physics_process(_delta):
 			var direction = (targetPlayer.position - position).normalized()
 			var speed = 5000.0 / ((targetPlayer.position - position).length() ** (1 / 3.0))
 			apply_central_force(direction * speed)
-			if position.distance_to(targetPlayer.position) < 60:
+			if position.distance_to(targetPlayer.position) < targetPlayer.fields.get(FieldStore.Entity.DROPPED_ITEM_COLLECT_RADIUS):
 				targetPlayer.collectItem(item, stackCount)
 				collect()