59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
int CheckInventoryFullHandler(void* player, void* item) {
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for (DLL* dll: modDLLs) {
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if (dll->HandleCheckInventoryFull) {
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if ( int result = ((int(*)(void*, void*))dll->HandleCheckInventoryFull)(player, item) ){
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return result;
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}
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}
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}
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return 0;
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}
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void* CheckInventoryFullHandler_ptr = (void*)&CheckInventoryFullHandler;
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void* ASMCheckInventoryFullHandler_jmpback;
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void* ASMCheckInventoryFullHandler_retn;
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void no_optimize ASMCheckInventoryFullHandler() {
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asm(PUSH_ALL
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PREPARE_STACK
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"call [CheckInventoryFullHandler_ptr] \n"
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RESTORE_STACK
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// Did the handler return 1? true
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"cmp eax, 1 \n"
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"je 1f \n"
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// Did the handler return 2? false
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"cmp eax, 2 \n"
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"je 2f \n"
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// Otherwise? Do nothing
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POP_ALL
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// original code
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"mov [rsp+0x20], rbp \n"
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"push r12 \n"
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"push r14 \n"
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"push r15 \n"
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"sub rsp, 0x20 \n"
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"jmp [ASMCheckInventoryFullHandler_jmpback] \n"
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"1: \n" //full
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POP_ALL
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"xor al,al \n"
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"jmp [ASMCheckInventoryFullHandler_retn] \n"
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"2: \n" //not
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POP_ALL
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"mov al,1 \n"
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"jmp [ASMCheckInventoryFullHandler_retn] \n"
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);
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}
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void SetupCheckInventoryFullHandler() {
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WriteFarJMP(base+0x50670, (void*)&ASMCheckInventoryFullHandler);
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ASMCheckInventoryFullHandler_jmpback = (void*)base+0x5067F;
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ASMCheckInventoryFullHandler_retn = (void*)base+0x507A0;
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}
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