cleaned up patching of virtual functions; started CAutomobile

src/core/Instance.cpp

@@ -0,0 +1,13 @@
+#include "common.h"
+#include "patcher.h"
+#include "Instance.h"
+
+class CInstance_ : public CInstance
+{
+public:
+	void dtor() { CInstance::~CInstance(); }
+};
+
+STARTPATCHES
+	InjectHook(0x50BE90, &CInstance_::dtor, PATCH_JUMP);
+ENDPATCHES

src/core/Instance.h

@@ -0,0 +1,10 @@
+#pragma once
+
+#include "Placeable.h"
+
+// unused
+
+class CInstance : CPlaceable
+{
+public:
+};

src/core/Placeable.cpp

@@ -63,9 +63,17 @@ CPlaceable::IsWithinArea(float x1, float y1, float z1, float x2, float y2, float
 	       z1 <= GetPosition().z && GetPosition().z <= z2;
 }
 
+class CPlaceable_ : public CPlaceable
+{
+public:
+	CPlaceable *ctor(void) { return ::new (this) CPlaceable(); }
+	void dtor(void) { CPlaceable::~CPlaceable(); }
+};
+
 STARTPATCHES
-	InjectHook(0x49F9A0, &CPlaceable::ctor, PATCH_JUMP);
-	InjectHook(0x49F9E0, &CPlaceable::dtor, PATCH_JUMP);
+	InjectHook(0x49F9A0, &CPlaceable_::ctor, PATCH_JUMP);
+	InjectHook(0x49F9E0, &CPlaceable_::dtor, PATCH_JUMP);
+
 	InjectHook(0x49FA00, &CPlaceable::SetHeading, PATCH_JUMP);
 	InjectHook(0x49FA50, (bool (CPlaceable::*)(float, float, float, float))&CPlaceable::IsWithinArea, PATCH_JUMP);
 	InjectHook(0x49FAF0, (bool (CPlaceable::*)(float, float, float, float, float, float))&CPlaceable::IsWithinArea, PATCH_JUMP);

src/core/Placeable.h

@@ -19,8 +19,5 @@ public:
 	void SetHeading(float angle);
 	bool IsWithinArea(float x1, float y1, float x2, float y2);
 	bool IsWithinArea(float x1, float y1, float z1, float x2, float y2, float z2);
-
-	CPlaceable *ctor(void) { return ::new (this) CPlaceable(); }
-	void dtor(void) { this->CPlaceable::~CPlaceable(); }
 };
 static_assert(sizeof(CPlaceable) == 0x4C, "CPlaceable: error");