1 files changed, 44 insertions, 0 deletions
diff --git a/arm9/src/coins.c b/arm9/src/coins.c
new file mode 100644
index 00000000..80efb768
--- /dev/null
+++ b/arm9/src/coins.c
@@ -0,0 +1,44 @@
+#include "global.h"
+#include "coins.h"
+
+#pragma thumb on
+
+void InitCoins(u16 * coins)
+{
+    *coins = 0;
+}
+
+void SetCoins(u16 * coins, u16 value)
+{
+    GF_ASSERT(value <= MAX_COINS);
+    *coins = value;
+}
+
+u16 CheckCoins(u16 * coins)
+{
+    return *coins;
+}
+
+BOOL GiveCoins(u16 * coins, u16 amount)
+{
+    if (*coins >= MAX_COINS)
+        return FALSE;
+    *coins += amount;
+    if (*coins > MAX_COINS)
+        *coins = MAX_COINS;
+    return TRUE;
+}
+
+BOOL CanGiveCoins(u16 * coins, u16 amount)
+{
+
+    return (u32)(amount + *coins) <= MAX_COINS;
+}
+
+BOOL TakeCoins(u16 * coins, u16 amount)
+{
+    if (*coins < amount)
+        return FALSE;
+    *coins -= amount;
+    return TRUE;
+}