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Use persistent XUID for all pads in GetXUID

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All pads now get unique XUIDs derived from the persistent uid.dat value
(base + iPad offset). This gives each split-screen player a globally
unique identity that works for both local play and online multiplayer.

The host legacy XUID override for save compatibility still happens in
Minecraft.cpp after GetXUID is called, so old worlds are unaffected.
This commit is contained in:
MrTheShy 2026-03-07 02:25:51 +01:00
parent 1b131ef7c1
commit 21f70fc930
1 changed files with 5 additions and 9 deletions
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14
Minecraft.Client/Extrax64Stubs.cpp
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@ -606,15 +606,11 @@ bool C_4JProfile::QuerySigninStatus(void) { return true; }
void C_4JProfile::GetXUID(int iPad, PlayerUID * pXuid, bool bOnlineXuid)
{
#ifdef _WINDOWS64
// Split-screen local players (pad 1-3) need unique XUIDs derived from the
// legacy base so the save system and per-player data can tell them apart.
// Only pad 0 participates in networking with a "real" identity.
if (IQNet::s_isHosting)
*pXuid = Win64Xuid::GetLegacyEmbeddedHostXuid() + iPad;
else if (iPad == 0)
*pXuid = Win64Xuid::ResolvePersistentXuid();
else
*pXuid = Win64Xuid::GetLegacyEmbeddedBaseXuid() + iPad;
// Each pad gets a unique XUID based on the persistent uid.dat value.
// Pad 0 uses the base persistent XUID, pads 1-3 offset from it.
// Minecraft.cpp overrides pad 0 with legacy XUID when hosting for
// save compatibility, but that's handled there, not here.
*pXuid = Win64Xuid::ResolvePersistentXuid() + iPad;
#else
* pXuid = 0xe000d45248242f2e + iPad;
#endif