Ejemplo n.º 1
0
int CLuaVector2Defs::Create ( lua_State* luaVM )
{
    CVector2D vector;

    CScriptArgReader argStream ( luaVM );
    if ( argStream.NextIsTable () )
    {
        lua_pushvalue ( luaVM, 1 );

        lua_pushstring ( luaVM, "x" );
        lua_rawget ( luaVM, -2 );
        if ( lua_isnumber ( luaVM, -1 ) )
        {
            vector.fX = ( float ) lua_tonumber ( luaVM, -1 );
            lua_pop ( luaVM, 1 );
        }
        else
        {
            lua_pop ( luaVM, 1 );
            lua_rawgeti ( luaVM, -1, 1 );
            if ( lua_isnumber ( luaVM, -1 ) )
                vector.fX = ( float ) lua_tonumber ( luaVM, -1 );
            lua_pop ( luaVM, 1 );
        }

        lua_pushstring ( luaVM, "y" );
        lua_rawget ( luaVM, -2 );
        if ( lua_isnumber ( luaVM, -1 ) )
        {
            vector.fY = ( float ) lua_tonumber ( luaVM, -1 );
            lua_pop ( luaVM, 1 );
        }
        else
        {
            lua_pop ( luaVM, 1 );
            lua_rawgeti ( luaVM, -1, 2 );
            if ( lua_isnumber ( luaVM, -1 ) )
                vector.fY = ( float ) lua_tonumber ( luaVM, -1 );
            lua_pop ( luaVM, 1 );
        }
    }
    else if ( argStream.NextIsNumber () )
    {
        argStream.ReadNumber ( vector.fX );
        if ( argStream.NextIsNumber () )
        {
            argStream.ReadNumber ( vector.fY );
        }
    }
    else if ( argStream.NextIsVector2D () )
    {
        argStream.ReadVector2D ( vector );
    }

    lua_pushvector ( luaVM, vector );
    return 1;
}