private static int DeleteSelf(IntPtr L)
{
IntPtr ppMyClass = XLLRTWarper.luaL_checkudata(L, 1, "HelloBolt.MyClass");
IntPtr myclassIndex = new IntPtr(Marshal.ReadInt32(ppMyClass));
allLuaMyClassObj[myclassIndex.ToInt32()] = null;
return(0);
}
private static int CreateMyClassInstance(IntPtr luaState)
{
//这里要把一个C#的obj instance传递到lua虚拟机中
//注意result的生命周期管理
MyClass result = new MyClass();
result.myname = "MyClass:" + s_currentIndex;
allLuaMyClassObj[s_currentIndex] = result;
XLLRTWarper.XLLRT_PushXLObject(luaState, "HelloBolt.MyClass", new IntPtr(s_currentIndex));
s_currentIndex++;
return(1);
}
private static int AttachResultListener(IntPtr L)
{
IntPtr ppMyClass = XLLRTWarper.luaL_checkudata(L, 1, "HelloBolt.MyClass");
IntPtr myclassIndex = new IntPtr(Marshal.ReadInt32(ppMyClass));
MyClass theObj = allLuaMyClassObj[myclassIndex.ToInt32()];
if (XLLRTWarper.lua_type(L, 2) == (int)LuaTypes.LUA_TFUNCTION)
{
int functionRef = XLLRTWarper.luaL_ref(L, (int)LuaInnerIndex.LUA_REGISTRYINDEX);
LuaMyClassAddOb theOb = new LuaMyClassAddOb(L, functionRef);
theObj.OnAddFinish += theOb.OnAddFinish;
}
return(0);
}
private static int Add(IntPtr L)
{
//考虑到unsafe代码里传递对象指针生命周期管理非常麻烦，这里配合s_currentIndex,allLuaMyClassObj
//牺牲了一点性能实现了一个简单的方案.
//每个封装函数的开始就是得到对象的C# object instance
IntPtr ppMyClass = XLLRTWarper.luaL_checkudata(L, 1, "HelloBolt.MyClass");
IntPtr myclassIndex = new IntPtr(Marshal.ReadInt32(ppMyClass));
MyClass theObj = allLuaMyClassObj[myclassIndex.ToInt32()];
int lhs = XLLRTWarper.lua_tointeger(L, 2);
int rhs = XLLRTWarper.lua_tointeger(L, 3);
int result = theObj.Add(lhs, rhs);
XLLRTWarper.lua_pushinteger(L, result);
return(1);
}
public void OnAddFinish(int lhs, int rhs, int result)
{
int nNowTop = XLLRTWarper.lua_gettop(m_luaState);
//C#->Lua,注意维护lua栈平衡！
XLLRTWarper.lua_rawgeti(m_luaState, (int)LuaInnerIndex.LUA_REGISTRYINDEX, m_luaFunctionRef);
XLLRTWarper.lua_pushinteger(m_luaState, result);
//Bolt中要求使用XLLRT_LuaCall代替调用lua_pcall
//以获得更高稳定性和更多虚拟机状态信息
int nLuaResult = XLLRTWarper.XLLRT_LuaCall(m_luaState, 1, 0, null);
//调用完成之后回退luaState到调用之前的状态
//如果被调用的lua代码段有返回值，
//请在此前处理并且注意XLLRT_LuaCall的返回值（nLuaResult变量）确认脚本正确执行
XLLRTWarper.lua_settop(m_luaState, nNowTop);
}
public static void RegisterClass()
{
//得到Lua环境句柄
IntPtr pNULL = new IntPtr(0);
IntPtr hEnv;
hEnv = XLLRTWarper.XLLRT_GetEnv(pNULL);
//注册MyClassFactory 工厂类，通常这个类只有一个方法就是创造MyClass 实例
IntPtr pMember = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(XLLRTGlobalAPI)) * 2);
XLLRTGlobalAPI pAPI = new XLLRTGlobalAPI();
pAPI.funName = "CreateInstance";
pAPI.permission = 0;
pAPI.func = _CreateInstance;//注意delegate对象的生命周期管理
Marshal.StructureToPtr(pAPI, pMember, true);
IntPtr pMember2 = new IntPtr(pMember.ToInt32() + Marshal.SizeOf(typeof(XLLRTGlobalAPI)));
XLLRTGlobalAPI pAPI2 = new XLLRTGlobalAPI();
pAPI.func = null;
pAPI.funName = null;
pAPI.permission = 0;
Marshal.StructureToPtr(pAPI2, pMember2, true);
fnGetObject pFun = new fnGetObject(LuaMyClassFactoryInstance);
XLLRTObject theObject = new XLLRTObject();
theObject.className = "HelloBolt.MyClass.Factory.Class";
theObject.objName = "HelloBolt.MyClass.Factory";
theObject.userData = pNULL;
theObject.pfnGetObject = pFun;
theObject.memberFunctions = pMember;
//真正注册
XLLRTWarper.XLLRT_RegisterGlobalObj(hEnv, theObject);
//注册MyClass的类型信息
IntPtr pMyClassMember = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(XLLRTGlobalAPI)) * 4);
XLLRTGlobalAPI pMyClassAPI = new XLLRTGlobalAPI();
pMyClassAPI.permission = 0;
pMyClassAPI.funName = "Add";
pMyClassAPI.func = _Add;//注意delegate对象的生命周期管理
Marshal.StructureToPtr(pMyClassAPI, pMyClassMember, false);
IntPtr pMyClassMember2 = new IntPtr(pMyClassMember.ToInt32() + Marshal.SizeOf(typeof(XLLRTGlobalAPI)));
pMyClassAPI.funName = "AttachResultListener";
pMyClassAPI.func = _AttachResultListener;//注意delegate对象的生命周期管理
Marshal.StructureToPtr(pMyClassAPI, pMyClassMember2, false);
IntPtr pMyClassMember3 = new IntPtr(pMyClassMember2.ToInt32() + Marshal.SizeOf(typeof(XLLRTGlobalAPI)));
pMyClassAPI.funName = "__gc";
pMyClassAPI.func = _DeleteSelf;//注意delegate对象的生命周期管理
Marshal.StructureToPtr(pMyClassAPI, pMyClassMember3, false);
IntPtr pMyClassMember4 = new IntPtr(pMyClassMember3.ToInt32() + Marshal.SizeOf(typeof(XLLRTGlobalAPI)));
pMyClassAPI.func = null;
pMyClassAPI.funName = null;
Marshal.StructureToPtr(pMyClassAPI, pMyClassMember4, false);
//真正注册
XLLRTWarper.XLLRT_RegisterClass(hEnv, "HelloBolt.MyClass", pMyClassMember, null, 0);
//清理资源
Marshal.FreeHGlobal(pMember);
Marshal.FreeHGlobal(pMyClassMember);
}