mirrors/PocketMine-MP
1
0
Fork 0
mirror of https://github.com/pmmp/PocketMine-MP.git synced 2025-06-10 13:35:29 +00:00
Code Issues Projects Releases Wiki Activity

Check for mismatched inventory slot predictions in transactions

Browse Source 
this should limit the problems caused by mismatched gameplay features that result in ghost items, such as #4896.
This commit is contained in:
Dylan K. Taylor 2022-03-22 17:42:19 +00:00
parent bf71eb448a
commit 90a8595a40
No known key found for this signature in database
GPG Key ID: 8927471A91CAFD3D
2 changed files with 31 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
src/network/mcpe/InventoryManager.php
View File

@ -304,6 +304,28 @@ class InventoryManager{
}
}
public function syncMismatchedPredictedSlotChanges() : void{
foreach($this->initiatedSlotChanges as $windowId => $slots){
if(!isset($this->windowMap[$windowId])){
continue;
}
$inventory = $this->windowMap[$windowId];
foreach($slots as $slot => $expectedItem){
if(!$inventory->slotExists($slot)){
continue; //TODO: size desync ???
}
$actualItem = $inventory->getItem($slot);
if(!$actualItem->equalsExact($expectedItem)){
$this->session->getLogger()->debug("Detected prediction mismatch in inventory " . get_class($inventory) . "#" . spl_object_id($inventory) . " slot $slot");
$this->syncSlot($inventory, $slot);
}
}
}
$this->initiatedSlotChanges = [];
}
public function syncData(Inventory $inventory, int $propertyId, int $value) : void{
$windowId = $this->getWindowId($inventory);
if($windowId !== null){

12
src/network/mcpe/handler/InGamePacketHandler.php
View File

@ -234,9 +234,13 @@ class InGamePacketHandler extends PacketHandler{
$packetHandled = true;
$useItemTransaction = $packet->getItemInteractionData();
if($useItemTransaction !== null && !$this->handleUseItemTransaction($useItemTransaction->getTransactionData())){
$packetHandled = false;
$this->session->getLogger()->debug("Unhandled transaction in PlayerAuthInputPacket (type " . $useItemTransaction->getTransactionData()->getActionType() . ")");
if($useItemTransaction !== null){
if(!$this->handleUseItemTransaction($useItemTransaction->getTransactionData())){
$packetHandled = false;
$this->session->getLogger()->debug("Unhandled transaction in PlayerAuthInputPacket (type " . $useItemTransaction->getTransactionData()->getActionType() . ")");
}else{
$this->inventoryManager->syncMismatchedPredictedSlotChanges();
}
}
$blockActions = $packet->getBlockActions();
@ -304,6 +308,8 @@ class InGamePacketHandler extends PacketHandler{
if(!$result){
$this->inventoryManager->syncAll();
}else{
$this->inventoryManager->syncMismatchedPredictedSlotChanges();
}
return $result;
}