UGCProjects/InfFire/Script/Global/Tool/UGCEventSystem.lua

UGCEventSystem = UGCEventSystem or {}
UGCEventSystem.Events = {};

-- 添加监听
function UGCEventSystem.AddListener(EventType, Func, Object)
    if UE_BUILD_DEBUG or WITH_ENGINE then
        assert(EventType ~= nil, string.format("[UGCEventSystem.AddListener] EventType 为空，这是不被允许的"));
    end
    if Func == nil or type(Func) ~= "function" then
        UGCLogSystem.LogError("[UGCEventSystem.AddListener] EventType or Func is nil!")
        return
    end

    local FuncData = {}
    FuncData.Object = Object
    FuncData.Func = Func

    if UGCEventSystem.Events[EventType]==nil then
        local NewEventFuncs={}
        table.insert(NewEventFuncs ,FuncData)
        UGCEventSystem.Events[EventType] = NewEventFuncs
        UGCLogSystem.Log("[UGCEventSystem.AddListener] EventType[%s], Func[%s]", tostring(EventType), tostring(Func))
    else
        table.insert(UGCEventSystem.Events[EventType], FuncData)
        UGCLogSystem.Log("[UGCEventSystem.AddListener] EventType[%s], Func[%s]", tostring(EventType), tostring(Func))
    end
end

-- 移除监听
function UGCEventSystem.RemoveListener(EventType, Func, Object)
    if UE_BUILD_DEBUG or WITH_ENGINE then
        assert(EventType ~= nil, string.format("[UGCEventSystem.RemoveListener] EventType 为空，这是不被允许的"));
    end
    if Func == nil then
        UGCLogSystem.LogError("[UGCEventSystem.RemoveListener] EventType or Func is nil!")
        return;
    end
    if UGCEventSystem.Events[EventType] ~= nil then
        for i = #UGCEventSystem.Events[EventType], 1, -1 do
            local FuncData = UGCEventSystem.Events[EventType][i]
            if FuncData.Func == Func and FuncData.Object == Object then
                local result = table.removeKey(UGCEventSystem.Events[EventType], i)
                UGCLogSystem.Log("[UGCEventSystem.RemoveListener] EventType[%s], Func[%s]", tostring(EventType), tostring(result))
                break
            end
        end
    else
        UGCLogSystem.LogError("[UGCEventSystem.RemoveListener] EventFuncs[%s] is nil!", tostring(EventType))
    end
end

-- 派发事件
function UGCEventSystem.SendEvent(EventType, ...)
    print(string.format("[UGCEventSystem.SendEvent] EventType: %s", tostring(EventType)))
    if UE_BUILD_DEBUG or WITH_ENGINE then
        assert(EventType ~= nil, string.format("[UGCEventSystem.SendEvent] EventType 为空，这是不被允许的"));
    end
    if EventType ~= nil then
        local EventFuncs = UGCEventSystem.Events[EventType];
        if EventFuncs ~= nil then
            for i, FuncData in pairs(EventFuncs) do
                if FuncData.Object ~= nil then
                    FuncData.Func(FuncData.Object, ...)
                else
                    FuncData.Func(...)
                end
            end
        end
    end
end

--- SetTimer
---@param Obj UObject
---@param Fun fun()
---@param IntevalSeconds float
---@return FTimerHandle
function UGCEventSystem.SetTimer(Obj, Fun, IntevalSeconds)
    UGCLogSystem.Log("[UGCEventSystem:SetTimer] 设置定时器 %s:%s", UE.GetPathName(Obj), tostring(Fun))
    local TimerDelegate = ObjectExtend.CreateDelegate(Obj, Fun, Obj)
    local Handle = KismetSystemLibrary.K2_SetTimerDelegateForLua(TimerDelegate, Obj, IntevalSeconds, false)
    return {
        Object = Obj,
        Handle = Handle,
    };
end

--- SetTimerLoop
---@param Obj UObject
---@param Fun fun()
---@param IntevalSeconds float
---@return FTimerHandle
function UGCEventSystem.SetTimerLoop(Obj, Fun, IntevalSeconds)
    local TimerDelegate = ObjectExtend.CreateDelegate(Obj, Fun, Obj);
    local Handle = KismetSystemLibrary.K2_SetTimerDelegateForLua(TimerDelegate, Obj, IntevalSeconds, true);
    local R = {
        Object = Obj,
        Handle = Handle,
    };
    UGCLogSystem.Log("[UGCEventSystem:SetTimerLoop] 设置循环定时器 %s:%s H:%s", UE.GetPathName(Obj), tostring(Fun), tostring(R));
    return R;
end

--- StopTimer
---@param HandlePair FTimerHandle
function UGCEventSystem.StopTimer(HandlePair)    
    if HandlePair == nil then
        UGCLogSystem.LogError("[UGCEventSystem:StopTimer] HandlePair is nil")
    else
        UGCLogSystem.Log("[UGCEventSystem:StopTimer] 停止定时器 Object:%s Handle:%s", UE.GetPathName(HandlePair.Object), tostring(HandlePair.Handle));        
        KismetSystemLibrary.K2_ClearTimerHandle(HandlePair.Object, HandlePair.Handle);
        HandlePair = nil
    end
end

return UGCEventSystem