1 files changed, 37 insertions, 0 deletions
diff --git a/arm9/src/play_timer.c b/arm9/src/play_timer.c
new file mode 100644
index 00000000..9675e179
--- /dev/null
+++ b/arm9/src/play_timer.c
@@ -0,0 +1,37 @@
+
+#include "play_timer.h"
+
+u64 sTimer3Start;
+u64 sUnused;
+u64 sDuration;
+struct IGT * sIGT_p;
+BOOL sTimerActive;
+
+THUMB_FUNC void PlayTimerInit()
+{
+    sTimerActive = FALSE;
+}
+
+THUMB_FUNC void PlayTimerStart(struct IGT *igt)
+{
+    sTimerActive = TRUE;
+    sUnused = 0;
+    sDuration = 0;
+    sIGT_p = igt;
+
+    sTimer3Start = GetTimer3Count();
+}
+
+THUMB_FUNC void PlayTimerUpdate(void)
+{
+    if (sTimerActive)
+    {
+        u64 res = Timer3CountToSeconds(GetTimer3Count() - sTimer3Start);
+
+        if (sDuration < res)
+        {
+            AddIGTSeconds(sIGT_p, (u32)(res - sDuration));
+            sDuration = res;
+        }
+    }
+}