109 lines
2.4 KiB
Lua
109 lines
2.4 KiB
Lua
EventManager = {
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Language = 1
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}
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-- 兼容 Lua 5.1 和 5.2+
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local unpack = unpack or table.unpack
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function EventManager:Init()
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EventManager._events = {}
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end
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-- 注册事件监听器
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function EventManager:EventAdd(eventName, callback)
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if not self._events[eventName] then
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self._events[eventName] = {}
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end
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-- 防止重复添加
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for _, listener in ipairs(self._events[eventName]) do
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if listener == callback then
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return false
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end
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end
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table.insert(self._events[eventName], callback)
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return true
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end
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-- 取消注册
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function EventManager:EventRemove(eventName, callback)
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if not self._events[eventName] then
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return false
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end
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for i, listener in ipairs(self._events[eventName]) do
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if listener == callback then
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table.remove(self._events[eventName], i)
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return true
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end
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end
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return false
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end
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-- 触发事件（使用兼容的 unpack）
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function EventManager:Call(eventName, ...)
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if not self._events[eventName] then
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return 0
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end
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local count = 0
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-- 使用兼容的 unpack 函数
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local listeners = { unpack(self._events[eventName]) }
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for _, callback in ipairs(listeners) do
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if type(callback) == "function" then
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local success, result = pcall(callback, ...)
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if not success then
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print("事件回调错误:", result)
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end
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count = count + 1
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end
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end
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return count
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end
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-- 替代方案：使用更安全的方式（推荐）
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function EventManager:CallSafe(eventName, ...)
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if not self._events[eventName] then
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return 0
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end
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local count = 0
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-- 安全复制数组
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local listeners = {}
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for i, v in ipairs(self._events[eventName]) do
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listeners[i] = v
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end
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for _, callback in ipairs(listeners) do
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if type(callback) == "function" then
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local success, result = pcall(callback, ...)
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if not success then
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print("事件回调错误:", result)
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end
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count = count + 1
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end
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end
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return count
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end
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-- 清空事件
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function EventManager:clear(eventName)
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if eventName then
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self._events[eventName] = nil
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else
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self._events = {}
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end
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end
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-- 获取监听器数量
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function EventManager:getListenerCount(eventName)
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if not self._events[eventName] then
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return 0
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end
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return #self._events[eventName]
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end |