EMPulseClass

The EMPulse class controls EMP effects in the game which can be enabled by the EMEffect tag.

Class specifications

Property	Value
General:
Derivation	AbstractClass → EMPulseClass
GUID	{B825CB22-11D2-200E-6000-A99F58D49A08}
VT address (YR 1.001)	0x7E87A8
Size of member data (YR 1.001)	0x34 bytes
AbstractClass derivative:
AbstractDerivation ID	0x37

Member variables

Offset	Type	Name	Description
AbstractClass:
0x0	ptr	VirtualTable	Pointer to the class's Virtual Table
0x4	ptr	IRTTITypeInfo VTable	Pointer to an extended VTable (not sure what exactly it does)
0x8	ptr	INoticeSink VTable	Pointer to an extended VTable (not sure what exactly it does)
0xC	ptr	INoticeSource VTable	Pointer to an extended VTable (not sure what exactly it does)
0x10	DWORD	unknown
0x14	DWORD	DerivationFlags	Bit 0: set if the instance is or derives from a TechnoClass Bit 1: set if the instance is or derives from a ObjectClass Bit 2: set if the instance is or derives from a FootClass
0x18	DWORD	unknown
0x1C	DWORD	unknown
0x20	bool	Dirty	Was the object changed since it was last saved?
0x21	BYTE	unused
0x22	WORD	unused
EMPulseClass:
0x24	short	OriginCell_X	X coordinate of the origin cell of the EMP effect
0x26	short	OriginCell_Y	Y coordinate of the origin cell of the EMP effect
0x28	int	Spread	Cell spreading radius of the EMP effect
0x2C	int	CreationTime	Time point at which this EMPulse instance has been created
0x30	int	Duration	Duration the EMP effect lasts

Go to Member Variables Virtual Table Offset Return Type Name Arguments Description IUnknown: 0x0 HRESULT QueryInterface REFIID iid void ** ppvObject MSDN: "Returns a pointer to a specified interface on an object to which a client currently holds an interface pointer." 0x4 ULONG AddRef none MSDN: "[...] increments the reference count for an interface on an object. It should be called for every new copy of a pointer to an interface on a given object." 0x8 ULONG Release none MSDN: "Decrements the reference count for the calling interface on a object. If the reference count on the object falls to 0, the object is freed from memory." IPersist: 0xC HRESULT GetClassID CLSID * pClassID MSDN: "Retrieves the class identifier (CLSID) of an object. The CLSID is a unique value that identifies the code that can manipulate the persistent data." IPersistStream: 0x10 HRESULT IsDirty none MSDN: "Checks the object for changes since it was last saved." 0x14 HRESULT Load IStream* stream AbstractClass* dst MSDN: "Initializes an object from the stream where it was previously saved." 0x18 HRESULT Save IStream* stream AbstractClass* src (3rd is unknown) MSDN: "Saves an object to the specified stream." 0x1C HRESULT GetMaxSize ULARGE_INTEGER * pcbSize MSDN: "Returns the size in bytes of the stream needed to save the object." AbstractClass: 0x20 none (DTOR) Destructor none Frees memory and removes this instance from global arrays. 0x24 unknown unknown unknown 0x28 unknown unknown unknown 0x2C int GetAbstractDerivationID none Gets the AbstractDerivationID of this class. Used to find out "what something is". 0x30 int GetSize none Gets the size of the member data. 0x34 unsigned long GetCRC unknown Calculates a CRC sum of this instance. 0x38 int GetOwningHouseIndex none Gets the index of the House (player) who owns this object. 0x3C HouseClass* GetOwningHouse none Gets a pointer to the House (player) who owns this object. 0x40 int GetArrayIndex none Gets the index of this class instance in the global array. This will return 0 for abstract classes. 0x44 bool IsDead none Finds out whether this instance is dead. This is only used for "living" objects with a health. 0x48 void Get3DCoords int* dst_xyz Loads 3D coordinates into dst_xyz. 0x4C void Get3DCoords_var int* dst_xyz Loads 3D coordinates into variables, then into dst_xyz. This method is obsolete (use 0x48). 0x50 unknown unknown unknown 0x54 unknown unknown unknown 0x58 unknown unknown unknown 0x5C void AdvanceFrame none This is an updating routine, called every frame. Member functions Address (YR 1.001) Return Type Name Arguments Description 0x4C52B0 ptr (CTOR) Constructor DWORD CellCoords int CellSpread int Duration (4th unknown) Creates an instance. 0x4C5370 ptr (CTOR) Constructor none Creates an instance without any initialization. 0x4C54E0 void Init 1, unknown Initializes the EMP and freezes nearby units (see EMEffect)