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fix: stale GO interaction guard broke future casts; premature LOOT interfered

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Two remaining GO interaction bugs:

1. pendingGameObjectInteractGuid_ was never cleared after SMSG_SPELL_GO
   or SMSG_CAST_FAILED, leaving it stale. This suppressed CMSG_CANCEL_CAST
   for ALL subsequent spell casts (not just GO casts), causing the server
   to think the player was still casting when they weren't.

2. For chest-like GOs, CMSG_LOOT was sent simultaneously with
   CMSG_GAMEOBJ_USE. If the server starts a timed cast ("Opening"),
   the GO isn't lootable until the cast completes — the premature LOOT
   gets an empty response or is dropped, potentially corrupting the
   server's loot state. Now defers LOOT to handleSpellGo which sends it
   after the cast completes (via lastInteractedGoGuid_).
This commit is contained in:
Kelsi 2026-03-29 22:36:30 -07:00
parent 6b5e924027
commit 785f03a599
2 changed files with 13 additions and 5 deletions
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11
src/game/game_handler.cpp
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@ -6226,10 +6226,13 @@ void GameHandler::performGameObjectInteractionNow(uint64_t guid) {
lastInteractedGoGuid_ = guid;
if (chestLike) {
// Chest-like GOs also need a CMSG_LOOT to open the loot window.
// Sent in the same frame: USE transitions the GO to lootable state,
// then LOOT requests the contents.
lootTarget(guid);
// Don't send CMSG_LOOT immediately — the server may start a timed cast
// (e.g., "Opening") and the GO isn't lootable until the cast finishes.
// Sending LOOT prematurely gets an empty response or is silently dropped,
// which can interfere with the server's loot state machine.
// Instead, handleSpellGo will send LOOT after the cast completes
// (using lastInteractedGoGuid_ set above). For instant-open chests
// (no cast), the server sends SMSG_LOOT_RESPONSE directly after USE.
} else if (isMailbox) {
LOG_INFO("Mailbox interaction: opening mail UI and requesting mail list");
mailboxGuid_ = guid;