SceneDropManager = SceneDropManager or BaseClass()
local SceneDropManager = SceneDropManager


local resMgr = resMgr
local Array_New = Array.New

function SceneDropManager:__init()
	SceneDropManager.Instance = self
	--assetbundle包资源引用列表
	self.ref_count_list = {}
	--资源对象池
	self.obj_pool_list = {}

	--对象池总ab包对象数量
	self.obj_pool_ab_count = 0

	self.is_load_effect = false
end

function SceneDropManager:getInstance()
	if SceneDropManager.Instance == nil then
		SceneDropManager.Instance = SceneDropManager.New()
	end
	return SceneDropManager.Instance
end


function SceneDropManager:CreateDropEffectToPool()

	if self.is_load_effect then
		return
	end

	self.is_load_effect = true

	local effect_res_list = {
							-- "function_getobj_yellow","function_getobj_yellow","function_getobj_yellow","function_getobj_yellow","function_getobj_yellow","function_getobj_yellow",
							-- "function_getobj_perple","function_getobj_perple","function_getobj_perple","function_getobj_perple","function_getobj_perple","function_getobj_perple",
							-- "function_getobj_red","function_getobj_red","function_getobj_red","function_getobj_red"
						}


	local load_effect_count = #effect_res_list
	local cur_effect_index = 1

	local function load_effect_func()
		if cur_effect_index <= load_effect_count then
			local res = effect_res_list[cur_effect_index]
			cur_effect_index = cur_effect_index + 1
			local function load_call_back(objs, is_gameObject)
				if objs and objs[0] then
					local effect_go = is_gameObject and objs[0] or newObject(objs[0])
					self:AddObjToPool(self, res, res, effect_go)
				end
				setTimeout(load_effect_func,0.1)
			end

			local ignore_pool = true

			lua_resM:loadPrefab(self, res, res, load_call_back, ignore_pool)
		end
	end

	load_effect_func()
end

--添加游戏对象进入缓存池 通过loadPrefab加载的资源对象
function SceneDropManager:AddObjToPool(ref_tar, abName, resName, gameObject, alpha, is_default_color)
	if gameObject then
		--非静态缓存对象
		if abName then 
			self:CreateABObjPool(abName)
			local res_list = self.obj_pool_list[abName]["res_name_list"][resName]
			if res_list == nil then
				res_list = Array_New()
				self.obj_pool_list[abName]["res_name_list"][resName] = res_list
			end

			if not IsNull(gameObject) then
				--放入缓存后减少引用计数
				gameObject.transform:SetParent(self.obj_pool_list[abName].container)
				res_list:PushBack(gameObject)
			end
		end
	end
end

--添加缓存对象时初始化缓存信息
function SceneDropManager:CreateABObjPool(abName)
	if not self.obj_pool_container then
		self.obj_pool_container = UiFactory.createChild(panelMgr:GetParent("SceneObjContainer"), UIType.EmptyObject, "obj_drop_pool_container").transform
		self.obj_pool_container.gameObject:SetActive(false)
	end
	
	
	if self.obj_pool_list[abName] == nil then
		self.obj_pool_ab_count = self.obj_pool_ab_count + 1
		self.obj_pool_list[abName] = {res_name_list = {}, container = UiFactory.createChild(self.obj_pool_container, UIType.EmptyObject, abName .. "_container").transform}
	end
end

--从缓存池中获取游戏对象
function SceneDropManager:GetObjFormPool(ref_tar, abName, resName)
	if self.obj_pool_list[abName] and self.obj_pool_list[abName]["res_name_list"][resName] then
		local gameObject = self.obj_pool_list[abName]["res_name_list"][resName]:PopBack()
		if gameObject then
			return gameObject
		end
	end
end

--清除所有缓存池游戏对象，切换场景时调用
function SceneDropManager:ClearAllObjPool()
	if not self.obj_pool_container then
		return
	end

	destroy(self.obj_pool_container.gameObject, true)
	self.obj_pool_container = nil

	self.obj_pool_list = {}
	self.obj_pool_ab_count = 0
	self.is_load_effect = false
end