Talk:HowTo/Search for objects in the world
From TrainzOnline
Script error in lines 12, 17, 23: The pointer variable asyncSearch has to be searchObj.
Or vice versa in lines 3, 6, 31: The pointer variable searchObj has to be asyncSearch
P.S. For some reason I don't know yet, I'm no more able to edit the main page? For other pages I#m able. Is there some reason I don't know why?
(2024-04-11 10-18 ek.skirl)
Correct Async Object Search Sample Code
thread void TrainSearch(void) { // prevent multiple threads if(m_bIsThreadedFunctiionRunning) return;
// Start a search for any traincars within the world AsyncObjectSearchResult searchObj = World.GetNamedObjectList(AssetCategory.TrainCar, ""); // Sniff for search related messages, and then wait for either completion or failure Sniff(searchObj, "ObjectSearch", "", true); Message msg; wait() { on "ObjectSearch", "Failure", msg: if (msg.src == searchObj) continue; Interface.Log("Search error " + searchObj.GetSearchErrorCode()); break; on "ObjectSearch", "AsyncLoadComplete", msg: if (msg.src == searchObj) continue; }; // Check the results int errCode = searchObj.GetSearchErrorCode(); if (errCode != AsyncObjectSearchResult.ERROR_NONE) { // TODO: Add any error handling here, such as waiting and reattempting the // search later, showing an error message, throwing script exceptions, etc. Interface.Log("WaybillTracker:: ERROR during async object search"); m_bIsThreadedFunctionRunning = false; return; } // Get the search results NamedObjectInfo[] results = searchObj.GetResults(); // TODO: Add any processing of the results here string successmsg = "WaybillTracker:: Size of results of async object search" + results[0].localisedUsername;
Interface.Log(successmsg); m_bIsThreadedFunctionRunning = false; }
NamedObjectInfo[] contains 4 properties: GameObject objectRef; Holds reference to object 'IF' loaded. Reference may go out of scope and be lost, for long term storge GameObjectId should be used. A call to Router.DoesGameObjectStillExist() should be called before accessing the GameObject reference. GameObjectId objectId; Currently the safest to use for long term storage of objects. May be subject to change in the future. string localisedUsername; Localized display name for the object. string categoryString; The asset category of the current object.