56 lines
1 KiB
C
56 lines
1 KiB
C
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#include "global.h"
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#include "money.h"
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#define MAX_MONEY 999999
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u32 GetMoney(u32* moneyPtr)
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{
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return *moneyPtr ^ gSaveBlock2Ptr->encryptionKey;
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}
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void SetMoney(u32* moneyPtr, u32 newValue)
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{
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*moneyPtr = gSaveBlock2Ptr->encryptionKey ^ newValue;
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}
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bool8 IsEnoughMoney(u32* moneyPtr, u32 cost)
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{
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if (GetMoney(moneyPtr) >= cost)
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return TRUE;
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else
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return FALSE;
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}
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void AddMoney(u32* moneyPtr, u32 toAdd)
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{
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u32 toSet = GetMoney(moneyPtr);
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// can't have more money than MAX
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if (toSet + toAdd > MAX_MONEY)
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{
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toSet = MAX_MONEY;
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}
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else
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{
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toSet += toAdd;
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// check overflow, can't have less money after you receive more
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if (toSet < GetMoney(moneyPtr))
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toSet = MAX_MONEY;
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}
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SetMoney(moneyPtr, toSet);
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}
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void SubtractMoney(u32* moneyPtr, u32 toSub)
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{
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u32 toSet = GetMoney(moneyPtr);
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// can't subtract more than you already have
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if (toSet < toSub)
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toSet = 0;
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else
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toSet -= toSub;
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SetMoney(moneyPtr, toSet);
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}
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