local Material_Utility = {}
local private = {}

local CIRCLE_HP_MATERIAL_PATH = ConstAssetPathConfig.CIRCLE_HP_MATERIAL_PATH

function Material_Utility.OnStartup()
	private.circleHpMaterial = nil
	private.hpMaterialCount = 0
	private.hpMaterialPool = {1, 2, 3, 4}
end

function Material_Utility.OnShutdown()
    if not private.circleHpMaterial then
        return
    end
    for _, v in pairs(private.hpMaterialPool) do
        UnityEngine.Object.Destroy(v)
    end
    TK2API.ReturnAsset(CIRCLE_HP_MATERIAL_PATH, private.circleHpMaterial)
end

function Material_Utility.InitCircleHpMaterialPool()
	--防止调用多遍
    if private.circleHpMaterial then
        return
    end
    private.circleHpMaterial = TK2API.GetAsset(CIRCLE_HP_MATERIAL_PATH)
    for i = 1, 4 do
       private.hpMaterialPool[i] = TK2API.InstantiateObject(private.circleHpMaterial)
    end
    private.hpMaterialCount = 4 
end

function Material_Utility.GetCircleHpMaterial()
    if private.hpMaterialCount > 0 then
        private.hpMaterialCount = private.hpMaterialCount - 1
        return private.hpMaterialPool[private.hpMaterialCount+1]
    else
        local circleHpMaterial = TK2API.InstantiateObject(private.circleHpMaterial)
        table.insert(private.hpMaterialPool, circleHpMaterial) 
        return circleHpMaterial
    end
end

function Material_Utility.ResetHpMaterialPoolCount()
    private.hpMaterialCount = #private.hpMaterialPool
end
return Material_Utility