void ReadConf()
{
//设置工作目录为exe所在目录
MySetCurrentDirectory(std::string(""));
Lua::LuaContext conf;
try
{
conf.executeCode(std::ifstream("init.conf"));
//初始化窗体大小
ClientRect.right = conf.readVariable<int>("窗口设置.宽");
ClientRect.bottom = conf.readVariable<int>("窗口设置.高");
std::string ctile = conf.readVariable<std::string>("窗口设置.标题");
szTitle = ctow(ctile.c_str());
//初始化渲染表面大小
RenderRect.right = conf.readVariable<int>("渲染表面.宽");
RenderRect.bottom = conf.readVariable<int>("渲染表面.高");
//读取各种目录属性
data_path = conf.readVariable<std::string>("公用数据目录");
games_path = conf.readVariable<std::string>("游戏目录");
//设置字库路径
font_lib = conf.readVariable<std::string>("字库");
if(!font_lib.length())
font_lib = "default.ttf";
//设置脚本入口
fs_entry = conf.readVariable<std::string>("脚本入口");
if(!fs_entry.length())
fs_entry = "0.txt";
}
catch(Lua::LuaContext::ExecutionErrorException &err) {MessageBoxA(0,err.what(),"读取配置出错",0);}
catch(Lua::LuaContext::VariableDoesntExistException &err) {MessageBoxA(0,err.what(),"读取配置出错",0);}
catch(Lua::LuaContext::SyntaxErrorException &err) {MessageBoxA(0,err.what(),"读取配置出错",0);}
catch(Lua::LuaContext::WrongTypeException &err) {MessageBoxA(0,err.what(),"读取配置出错",0);}
}
// these are basic tests just to see if I broke something when modifying the code
void test() {
// test 1: writing basic types and reading again
{
Lua::LuaContext lua;
lua.writeVariable("a", 5);
lua.writeVariable("b", true);
lua.writeVariable("c", 5.2);
lua.writeVariable("d", "test");
lua.executeCode("a = a + 2;");
lua.executeCode("b = not b;");
lua.executeCode("c = c * 2;");
lua.executeCode("d = d .. \"test\";");
lua.executeCode("e = \"7\";");
assert(lua.readVariable<int>("a") == 7);
assert(lua.readVariable<bool>("b") == false);
assert(lua.readVariable<float>("c") == 10.4f);
assert(lua.readVariable<std::string>("d") == "testtest");
assert(lua.readVariable<double>("e") == 7.);
}
// test 2: writing a function and calling it within lua
// strangely enough, GCC terminates the program because of the exception voluntary triggered inside the try-catch block
{
# ifndef __GNUC__
Lua::LuaContext lua;
lua.writeVariable("increment", [](int x) { return x + 1; });
lua.executeCode("x = increment(3);");
try { lua.executeCode("x = increment(increment);"); assert(false); } catch(...) { }
assert(lua.readVariable<int>("x") == 4);
# endif
}
// test 3: calling a lua function
{
Lua::LuaContext lua;
lua.writeVariable("increment", [](int x) { return x + 1; });
lua.executeCode("function test(a) \r return increment(a); \r end");
assert(lua.callLuaFunction<int>("test", 3) == 4);
assert(lua.callLuaFunction<int>("test", "3.1") == 4);
assert(lua.callLuaFunction<int>("test", 3, 8, 12, true, "hello") == 4);
}
// test 4: calling a lua function returning multiple values
{
Lua::LuaContext lua;
std::shared_ptr<std::vector<char>> ptr(new std::vector<char>());
lua.writeVariable("obj", ptr);
lua.executeCode("function test() \r return 4, 8, \"test\", obj; \r end");
const auto r = lua.callLuaFunction<std::tuple<std::string,float,std::string,std::shared_ptr<std::vector<char>>>>("test");
assert(std::get<0>(r) == "4");
assert(std::get<1>(r) == 8.f);
assert(std::get<2>(r) == "test");
assert(std::get<3>(r) == ptr);
assert(std::get<3>(r));
}
// test 5: using a custom type (std::vector<char>)
{
class MyType {
public:
MyType(int x) : _variable(x) {}
void increment() { _variable++; }
void decrement() { _variable--; }
int& getVariable() { return _variable; }
int read() const { return _variable; }
private:
int _variable;
};
Lua::LuaContext lua;
lua.writeVariable("increment", [](std::shared_ptr<MyType> ptr) { ptr->increment(); });
lua.registerFunction("increment", &MyType::increment);
lua.registerFunction("decrement", &MyType::decrement);
lua.registerFunction("read", &MyType::read);
lua.registerFunction("getValue", [](std::shared_ptr<MyType> ptr) -> int { return ptr->getVariable(); });
std::shared_ptr<MyType> ptr(new MyType(5));
lua.writeVariable("create", [ptr]() { return ptr; });
lua.executeCode("t = create(); increment(t); x = t:getValue(); t:increment();");
assert(ptr);
assert(ptr->getVariable() == 7);
assert(lua.readVariable<int>("x") == 6);
}
// test 6: reading arrays
{
Lua::LuaContext lua;
lua.writeArrayIntoVariable("a");
lua.writeArrayIntoVariable("a.b");
lua.writeVariable("a.b.c", 9);
std::shared_ptr<std::vector<char>> ptr(new std::vector<char>());
lua.writeVariable("a.b.d", ptr);
lua.executeCode("x = a[\"b\"][\"c\"];");
lua.executeCode("y = a[\"b\"][\"d\"];");
assert(lua.readVariable<int>("x") == 9);
assert(ptr);
assert(lua.readVariable<std::shared_ptr<std::vector<char>>>("y") == ptr);
}
// test 7: member functions that return a tuple
{
class A {
public:
std::tuple<int,float> f1() const { return std::make_tuple(2, 3.7f); }
};
Lua::LuaContext lua;
lua.registerFunction("f1", &A::f1);
lua.writeVariable("f", []() { return std::make_tuple(2, 3.7); });
}
// test 8: executeCode returning a value
{
Lua::LuaContext lua;
assert(lua.executeCode<int>("return 5;") == 5);
}
// test 9: thread safety
{
// GCC seems to have some problems with their <thread> implementation
// this has nothing to do with lua
# ifndef __GNUC__
/*Lua::LuaContext lua;
lua.executeCode("a = 1; b = 2;");
std::thread checkA([&]() {
for (int i = 0; i < 100000; ++i) {
lua.writeVariable("f", [](int x) { return x + 1; });
assert(lua.readVariable<int>("a") == 1);
}
});
std::thread checkB([&]() {
for (int i = 0; i < 100000; ++i)
assert(lua.readVariable<int>("b") == 2);
});
checkA.join();
checkB.join();*/
# endif
}
// test 10: writing entire arrays
{
Lua::LuaContext lua;
Lua::LuaContext::Table table;
table.insert("test", 5);
table.insert(5, "test");
assert(table.read<int>("test") == 5);
lua.writeVariable("t", table);
Lua::LuaContext::Table table2;
table2.insert("f", [](int x) { return x + 1; });
lua.writeVariable("f", table2);
assert(lua.executeCode<int>("return t[\"test\"];") == 5);
assert(lua.executeCode<std::string>("return t[5];") == "test");
assert(lua.executeCode<int>("return f.f(2);") == 3);
}
// test 11: reading entire arrays
{
/*Lua::LuaContext lua;
lua.writeVariable("handleTable", [](Lua::LuaContext::Table table) {
assert(table.read<std::string>(0) == "value 0");
assert(table.read<std::string>(1) == "value 1");
assert(table.read<std::string>(2) == "value 2");
});
lua.executeCode("handleTable({ [0] = \"value 0\", [1] = \"value 1\", [2] = \"value 2\" });");*/
}
// test 12: reading/writing maps
{
Lua::LuaContext lua;
std::map<std::string,int> map;
map["test"] = 5;
map["haha"] = 3;
lua.writeVariable("arr", map);
assert(lua.readVariable<std::string>("arr.haha") == "3");
}
}
