Method SetSceneNodeTracking

src/lua/LuaSceneNode.cpp:519–560

int LuaSceneNodeMgr::SetSceneNodeTracking(lua_State* L) {
  LuaSceneNode* sceneNode = CheckLuaSceneNode(L, 1);
  if (sceneNode == NULL) {
    lua_settop(L, 1);
    return 1;
  }

  if (lua_isnil(L, 2)) {
    sceneNode->trackMode = LuaSceneNode::TrackNone;
    sceneNode->trackTarget = -1;
    lua_settop(L, 1);
    return 1;
  }

  if (!L2H(L)->HasFullRead()) {
    luaL_error(L, "this script can not use positional tracking");
  }

  const std::string mode = luaL_checkstring(L, 2);
  if (mode == "none") {
    sceneNode->trackMode = LuaSceneNode::TrackNone;
    sceneNode->trackTarget = -1;
  }
  else if (mode == "tank") {
    sceneNode->trackMode = LuaSceneNode::TrackTank;
    sceneNode->trackTarget = luaL_checkint(L, 3);
  }
  else if (mode == "flag") {
    sceneNode->trackMode = LuaSceneNode::TrackFlag;
    sceneNode->trackTarget = luaL_checkint(L, 3);
  }
  else if (mode == "shot") {
    sceneNode->trackMode = LuaSceneNode::TrackShot;
    sceneNode->trackTarget = luaL_checkint(L, 3);
  }
  else {
    luaL_error(L, "bad tracking type");
  }

  lua_settop(L, 1);
  return 1;
}


int LuaSceneNodeMgr::GetSceneNodeInfo(lua_State* L) {