diff --git a/ISLE/isle.cpp b/ISLE/isle.cpp
index bfb41e03..9f3c50c4 100644
--- a/ISLE/isle.cpp
+++ b/ISLE/isle.cpp
@@ -1,10 +1,8 @@
 #include "isle.h"
 
-#include "define.h"
 #include "legoanimationmanager.h"
 #include "legobuildingmanager.h"
 #include "legomodelpresenter.h"
-#include "legoomni.h"
 #include "legopartpresenter.h"
 #include "legoworldpresenter.h"
 #include "mxdirectdraw.h"
@@ -574,67 +572,3 @@ MxResult Isle::SetupWindow(HINSTANCE hInstance)
 
   return SUCCESS;
 }
-
-// OFFSET: ISLE 0x402c20
-void Isle::Tick(BOOL sleepIfNotNextFrame)
-{
-  if (this->m_windowActive) {
-    if (!Lego()) return;
-    if (!TickleManager()) return;
-    if (!Timer()) return;
-
-    long currentTime = Timer()->GetRealTime();
-    if (currentTime < g_lastFrameTime) {
-      g_lastFrameTime = -this->m_frameDelta;
-    }
-    if (this->m_frameDelta + g_lastFrameTime < currentTime) {
-      if (!Lego()->vtable40()) {
-        TickleManager()->Tickle();
-      }
-      g_lastFrameTime = currentTime;
-
-      if (g_startupDelay == 0) {
-        return;
-      }
-
-      g_startupDelay--;
-      if (g_startupDelay != 0) {
-        return;
-      }
-
-      LegoOmni::GetInstance()->CreateBackgroundAudio();
-      BackgroundAudioManager()->Enable(this->m_useMusic);
-
-      MxStreamController *stream = Streamer()->Open("\\lego\\scripts\\isle\\isle", 0);
-      MxDSAction ds;
-
-      if (!stream) {
-        stream = Streamer()->Open("\\lego\\scripts\\nocd", 0);
-        if (!stream) {
-          return;
-        }
-
-        ds.SetAtomId(stream->atom);
-        ds.SetUnknown24(-1);
-        ds.SetUnknown1c(0);
-        VideoManager()->EnableFullScreenMovie(TRUE, TRUE);
-
-        if (Start(&ds) != SUCCESS) {
-          return;
-        }
-      } else {
-        ds.SetAtomId(stream->atom);
-        ds.SetUnknown24(-1);
-        ds.SetUnknown1c(0);
-        if (Start(&ds) != SUCCESS) {
-          return;
-        }
-        this->m_gameStarted = 1;
-      }
-      return;
-    }
-    if (sleepIfNotNextFrame == 0) return;
-  }
-
-  Sleep(0);
-}
diff --git a/ISLE/isle.h b/ISLE/isle.h
index 4d6b73c4..46b7c08f 100644
--- a/ISLE/isle.h
+++ b/ISLE/isle.h
@@ -3,6 +3,9 @@
 
 #include <windows.h>
 
+#include "define.h"
+
+#include "legoomni.h"
 #include "mxresult.h"
 #include "mxvideoparam.h"
 
@@ -77,4 +80,68 @@ class Isle
 
 };
 
+// OFFSET: ISLE 0x402c20
+inline void Isle::Tick(BOOL sleepIfNotNextFrame)
+{
+  if (this->m_windowActive) {
+    if (!Lego()) return;
+    if (!TickleManager()) return;
+    if (!Timer()) return;
+
+    long currentTime = Timer()->GetRealTime();
+    if (currentTime < g_lastFrameTime) {
+      g_lastFrameTime = -this->m_frameDelta;
+    }
+    if (this->m_frameDelta + g_lastFrameTime < currentTime) {
+      if (!Lego()->vtable40()) {
+        TickleManager()->Tickle();
+      }
+      g_lastFrameTime = currentTime;
+
+      if (g_startupDelay == 0) {
+        return;
+      }
+
+      g_startupDelay--;
+      if (g_startupDelay != 0) {
+        return;
+      }
+
+      LegoOmni::GetInstance()->CreateBackgroundAudio();
+      BackgroundAudioManager()->Enable(this->m_useMusic);
+
+      MxStreamController *stream = Streamer()->Open("\\lego\\scripts\\isle\\isle", 0);
+      MxDSAction ds;
+
+      if (!stream) {
+        stream = Streamer()->Open("\\lego\\scripts\\nocd", 0);
+        if (!stream) {
+          return;
+        }
+
+        ds.SetAtomId(stream->atom);
+        ds.SetUnknown24(-1);
+        ds.SetUnknown1c(0);
+        VideoManager()->EnableFullScreenMovie(TRUE, TRUE);
+
+        if (Start(&ds) != SUCCESS) {
+          return;
+        }
+      } else {
+        ds.SetAtomId(stream->atom);
+        ds.SetUnknown24(-1);
+        ds.SetUnknown1c(0);
+        if (Start(&ds) != SUCCESS) {
+          return;
+        }
+        this->m_gameStarted = 1;
+      }
+      return;
+    }
+    if (sleepIfNotNextFrame == 0) return;
+  }
+
+  Sleep(0);
+}
+
 #endif // ISLE_H