start coins decomp

src/coins.c

@@ -0,0 +1,77 @@
+#include "global.h"
+#include "coins.h"
+#include "text.h"
+#include "window.h"
+#include "text_window.h"
+#include "string_util.h"
+
+#define MAX_COINS 9999
+
+EWRAM_DATA u8 sCoinsWindowId = 0;
+
+extern s32 GetStringRightAlignXOffset(u8 fontId, u8 *str, s32 totalWidth);
+extern void SetWindowTemplateFields(struct WindowTemplate* template, u8 priority, u8 tilemapLeft, u8 tilemapTop, u8 width, u8 height, u8 palNum, u16 baseBlock);
+extern void SetWindowBorderStyle(u8 windowId, bool8 copyToVram, s16 tileStart, s8 palette);
+extern void sub_819746C(u8 windowId, bool8 copyToVram);
+
+extern const u8 gOtherText_Coins2[];
+
+void PrintCoinsString(u32 coinAmount)
+{
+    u32 xAlign;
+
+    ConvertIntToDecimalStringN(gStringVar1, coinAmount, STR_CONV_MODE_RIGHT_ALIGN, 4);
+    StringExpandPlaceholders(gStringVar4, gOtherText_Coins2);
+
+    xAlign = GetStringRightAlignXOffset(1, gStringVar4, 0x40);
+    PrintTextOnWindow(sCoinsWindowId, 1, gStringVar4, xAlign, 1, 0, NULL);
+}
+
+void ShowCoinsWindow(u32 coinAmount, u8 x, u8 y)
+{
+    struct WindowTemplate template;
+    SetWindowTemplateFields(&template, 0, x, y, 8, 2, 0xF, 0x141);
+    sCoinsWindowId = AddWindow(&template);
+    FillWindowPixelBuffer(sCoinsWindowId, 0);
+    PutWindowTilemap(sCoinsWindowId);
+    SetWindowBorderStyle(sCoinsWindowId, FALSE, 0x214, 0xE);
+    PrintCoinsString(coinAmount);
+}
+
+void HideCoinsWindow(void)
+{
+    sub_819746C(sCoinsWindowId, TRUE);
+    RemoveWindow(sCoinsWindowId);
+}
+
+u16 GetCoins(void)
+{
+    return gSaveBlock1Ptr->coins ^ gSaveBlock2Ptr->encryptionKey;
+}
+
+void SetCoins(u16 coinAmount)
+{
+    gSaveBlock1Ptr->coins = coinAmount ^ gSaveBlock2Ptr->encryptionKey;
+}
+
+/* Can't match it lol
+bool8 AddCoins(u16 toAdd)
+{
+    u16 newAmount;
+    u16 ownedCoins = GetCoins();
+    if (ownedCoins >= MAX_COINS)
+        return FALSE;
+    // check overflow, can't have less coins than previously
+    if (ownedCoins > ownedCoins + toAdd)
+    {
+        newAmount = MAX_COINS;
+    }
+    else
+    {
+        newAmount = ownedCoins + toAdd;
+        if (newAmount > MAX_COINS)
+            newAmount = MAX_COINS;
+    }
+    SetCoins(newAmount);
+    return TRUE;
+}*/