Consolidate state and building entity classes (#989)

LEGO1/lego/legoomni/include/gasstation.h

@@ -3,12 +3,55 @@
 
 #include "decomp.h"
 #include "legogamestate.h"
+#include "legostate.h"
 #include "legoworld.h"
 #include "radio.h"
 
-class GasStationState;
 class MxStillPresenter;
 
+// VTABLE: LEGO1 0x100d46e0
+// SIZE 0x24
+class GasStationState : public LegoState {
+public:
+	// SIZE 0x04
+	struct Unknown0x14 {
+		undefined4 m_unk0x00; // 0x00
+	};
+
+	GasStationState();
+
+	// FUNCTION: LEGO1 0x100061d0
+	inline const char* ClassName() const override // vtable+0x0c
+	{
+		// STRING: LEGO1 0x100f0174
+		return "GasStationState";
+	}
+
+	// FUNCTION: LEGO1 0x100061e0
+	inline MxBool IsA(const char* p_name) const override // vtable+0x10
+	{
+		return !strcmp(p_name, GasStationState::ClassName()) || LegoState::IsA(p_name);
+	}
+
+	MxResult Serialize(LegoFile* p_legoFile) override; // vtable+0x1c
+
+	// SYNTHETIC: LEGO1 0x10006290
+	// GasStationState::`scalar deleting destructor'
+
+	void FUN_10006430(undefined4);
+	void FUN_10006490();
+
+	// TODO: Most likely getters/setters are not used according to BETA.
+
+	undefined4 m_unk0x08[3]; // 0x08
+	Unknown0x14 m_unk0x14;   // 0x14
+	MxS16 m_unk0x18;         // 0x18
+	MxS16 m_unk0x1a;         // 0x1a
+	MxS16 m_unk0x1c;         // 0x1c
+	MxS16 m_unk0x1e;         // 0x1e
+	MxS16 m_unk0x20;         // 0x20
+};
+
 // VTABLE: LEGO1 0x100d4650
 // SIZE 0x128
 class GasStation : public LegoWorld {