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Decrypting LocalPlayer pointer in Apex Legends (Source engine variant)

apex_kraber_god
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1개월 전 · Jul 4, 2026 10:01 PM
#1

Respawn applies dynamic pointer permutation to LocalPlayer in r5apex.exe:

CPP
uintptr_t DecryptLocalPlayer(uintptr_t baseAddress) {
    uintptr_t encryptedPtr = Read<uintptr_t>(baseAddress + OFFSET_LOCAL_ENT);
    if (!encryptedPtr) return 0;
    
    // Rotate right and XOR with dynamically generated session key
    uintptr_t key = Read<uintptr_t>(baseAddress + OFFSET_DECRYPTION_KEY);
    uintptr_t decrypted = _rotr64(encryptedPtr ^ key, 0x17);
    return decrypted;
}

Reverse engineered directly from the player view render initialization routine.

vtable_slayer
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1개월 전 · Jul 5, 2026 3:12 AM
#2

The rotation shift (0x17) changes slightly between major seasonal updates. Good disassembly breakdown.

raycast_ryan
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1개월 전 · Jul 5, 2026 11:10 AM
#3

Works cleanly. Local player origin and view angles read without issues.