From 2b3486b05fa356a71b3292806bcff2ddc7713aeb Mon Sep 17 00:00:00 2001
From: Sean Miller <seanmiller999@gmail.com>
Date: Thu, 9 Apr 2026 23:32:06 +0100
Subject: 100% eggSystem.cpp

---
 include/d/d_sys.h                     |  2 +-
 include/egg/core/eggPerformanceView.h | 26 ++++++++++++++++++++++++++
 include/egg/core/eggProcessMeter.h    | 14 --------------
 include/egg/core/eggSceneManager.h    | 20 ++++++++++++++++++++
 include/egg/core/eggSystem.h          | 14 ++++++++------
 5 files changed, 55 insertions(+), 21 deletions(-)
 create mode 100644 include/egg/core/eggPerformanceView.h
 delete mode 100644 include/egg/core/eggProcessMeter.h
 create mode 100644 include/egg/core/eggSceneManager.h

(limited to 'include')

diff --git a/include/d/d_sys.h b/include/d/d_sys.h
index cf602af8..25b07596 100644
--- a/include/d/d_sys.h
+++ b/include/d/d_sys.h
@@ -3,7 +3,7 @@
 
 #include "common.h"
 #include "egg/core/eggHeap.h"
-#include "egg/core/eggProcessMeter.h"
+#include "egg/core/eggPerformanceView.h"
 #include "egg/core/eggSystem.h"
 #include "nw4r/ut/ut_Color.h"
 
diff --git a/include/egg/core/eggPerformanceView.h b/include/egg/core/eggPerformanceView.h
new file mode 100644
index 00000000..98cff48e
--- /dev/null
+++ b/include/egg/core/eggPerformanceView.h
@@ -0,0 +1,26 @@
+#ifndef EGG_PROCESS_METER_H
+#define EGG_PROCESS_METER_H
+
+#include "egg/core/eggThread.h"
+
+namespace EGG {
+
+class PerformanceView {
+public:
+    // vtable at 0x0
+    /* 0x08 */ virtual void measureBeginFrame() = 0;
+    /* 0x0C */ virtual void measureEndFrame() = 0;
+    /* 0x10 */ virtual void measureBeginRender() = 0;
+    /* 0x14 */ virtual void measureEndRender() = 0;
+    /* 0x18 */ virtual void callbackDrawSync(u16 token) = 0;
+    /* 0x1C */ virtual void unused() = 0;
+    /* 0x20 */ virtual void draw() = 0;
+    /* 0x24 */ virtual void setVisible(bool visible) = 0;
+    /* 0x28 */ virtual bool isVisible() = 0;
+};
+
+class ProcessMeter : public Thread, public PerformanceView {};
+
+}; // namespace EGG
+
+#endif // EGG_PROCESS_METER_H
diff --git a/include/egg/core/eggProcessMeter.h b/include/egg/core/eggProcessMeter.h
deleted file mode 100644
index 3641c43d..00000000
--- a/include/egg/core/eggProcessMeter.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef EGG_PROCESS_METER_H
-#define EGG_PROCESS_METER_H
-
-#include "egg/core/eggThread.h"
-
-namespace EGG {
-
-class PerformanceView {};
-
-class ProcessMeter : public Thread, public PerformanceView {};
-
-};
-
-#endif // EGG_PROCESS_METER_H
diff --git a/include/egg/core/eggSceneManager.h b/include/egg/core/eggSceneManager.h
new file mode 100644
index 00000000..6f9a4ed9
--- /dev/null
+++ b/include/egg/core/eggSceneManager.h
@@ -0,0 +1,20 @@
+#ifndef EGG_SCENE_MANAGER_H
+#define EGG_SCENE_MANAGER_H
+
+namespace EGG {
+
+class SceneManager {
+public:
+    // vtable at 0x0
+    /* 0x08 */ virtual void calc();
+    /* 0x0C */ virtual void draw();
+    /* 0x10 */ virtual void calcCurrentScene();
+    /* 0x14 */ virtual void calcCurrentFader();
+    /* 0x18 */ virtual void drawCurrentScene();
+    /* 0x1C */ virtual void drawCurrentFader();
+    /* 0x20 */ virtual void createDefaultFader();
+};
+
+} // namespace EGG
+
+#endif // EGG_SCENE_MANAGER_H
diff --git a/include/egg/core/eggSystem.h b/include/egg/core/eggSystem.h
index 634b7578..ef4a0968 100644
--- a/include/egg/core/eggSystem.h
+++ b/include/egg/core/eggSystem.h
@@ -4,6 +4,8 @@
 #include "common.h"
 #include "egg/core/eggVideo.h"
 
+struct OSBootInfo;
+
 namespace EGG {
 
 class Display;
@@ -35,18 +37,18 @@ public:
     /* vt 0x38 */ virtual void initialize() = 0;
 
 public:
-    /* 0x04 */ u32 mRoot1HeapStart;
-    /* 0x08 */ u32 mRoot1HeapEnd;
-    /* 0x0C */ u32 mRoot2HeapStart;
-    /* 0x10 */ u32 mRoot2HeapEnd;
+    /* 0x04 */ void *mRoot1HeapStart;
+    /* 0x08 */ void *mRoot1HeapEnd;
+    /* 0x0C */ void *mRoot2HeapStart;
+    /* 0x10 */ void *mRoot2HeapEnd;
     /* 0x14 */ u32 mMemSize;
     /* 0x18 */ Heap *mRootHeapMem1;
     /* 0x1C */ Heap *mRootHeapMem2;
     /* 0x20 */ Heap *mRootHeapDebug;
     /* 0x24 */ Heap *mSystemHeap;
     /* 0x28 */ Thread *mSystemThread;
-    /* 0x2C */ u32 field_0x2C;
-    /* 0x30 */ u32 mSystemHeapStart;
+    /* 0x2C */ OSBootInfo *mBootInfo;
+    /* 0x30 */ void *mSystemHeapStart;
     /* 0x34 */ u32 mSystemHeapSize;
 };
 class BaseSystem {
-- 
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