utils.h

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#ifndef UTILS_H
#define UTILS_H
 
inline int VisualisationState::lua_setText(lua_State * lua)
{
    if (lua_gettop(lua) >= 1 && lua_isstring(lua, 1) && std::string(lua_tostring(lua, 1)) == "help")
    {
        lua_writestring("setText:\n  Arguments:\n    message [string]\n  Set the info message.\n");
        return 0;
    };
    int args = lua_gettop(lua);
    if (args != 1)
    {
        const std::string msg = "setText expects a string as argument.\n";
        lua_pushlstring(lua, msg.c_str(), msg.length());
        return lua_error(lua);
    }
 
    LuaString s;
    s.read(lua, 1);
 
    text = s.characters;
 
    return 0;
}
 
inline int VisualisationState::lua_getFrame(lua_State * lua)
{
    if (lua_gettop(lua) >= 1 && lua_isstring(lua, 1) && std::string(lua_tostring(lua, 1)) == "help")
    {
        lua_writestring("getFrame:\n  Arguments: none\n  Get the current frame number.");
        return 0;
    };
    lua_pushinteger(lua, frame);
    return 1;
}
 
#endif /* UTILS_H */