//拾取以摄像机为中心，半径为radius的区域内的物品。并把物品加入背包
void PickSurroundingItems()
{
Collider[] colliders = Physics.OverlapSphere(tr.position, radius, mask.value);
Debug.Log("范围内选中 " + colliders.Length);
List <ItemInfo> itemList = new List <ItemInfo>();
for (int i = 0; i < colliders.Length; i++)
{
Collider ht = colliders[i];
GameObject gameobj = ht.gameObject;
ToolItem item = gameobj.GetComponent <ToolItem>();
if (item != null)
{//把物品加入背包
ItemInfo itemInfo = item.OnGetItemInfo();
itemList.Add(itemInfo);
}
}
}
