Tier2

Tier2 is an engine library containing utility functionality for VConfig, cameras, file handling, primitive rendering and sound. It is closed source and compiled as a static library.

Tier2 header files can be found in <project_path>\src\public\tier2.

Components

Note:The items listed here are symbols defined in tier2's header files. Therefore this list is probably far from being complete, as ordinary mortals lack access and knowledge to things happening under the hood.

tier2.h

A higher level link library for general use in the game and tools.

Note:This header file #includes tier1.h

Type	Name	Description (according to header comments)
global function	ConnectTier2Libraries	Call this to connect to all tier 2 libraries.
global function	DisconnectTier2Libraries	Call this to disconnect from all tier 2 libraries.
global function	InitDefaultFileSystem	Call this to get the file system set up to stdio for utilities, etc.
global function	ShutdownDefaultFileSystem
global function	InitCommandLineProgram	For simple utilities using valve libraries, call the entry point below (Note: this function) in main(). It will init a filesystem for you, init mathlib, and create the command line.
template class	CTier2AppSystem	Helper empty implementation of an IAppSystem for tier2 libraries

beamsegdraw.h

Type	Name	Description (according to header comments)
struct	BeamSeg_t
class	CBeamSegDraw	a simple interface to beam rendering
class	CBeamSegDrawArbitrary
global function	DrawSprite

camerautils.h

A set of utilities to deal with camera transforms.

Type	Name	Description (according to header comments)
struct	Camera_t	Camera state
global function	ComputeViewMatrix	accessor for generated matrices
global function	ComputeProjectionMatrix	accessor for generated matrices
global function	ComputeScreenSpacePosition	Computes the screen space position given a screen size

fileutils.h

A higher level link library for general use in the game and tools.

Type	Name	Description (according to header comments)
global function	GetModSubdirectory	Builds a directory which is a subdirectory of the current mod
global function	GetModContentSubdirectory	Builds a directory which is a subdirectory of the current mod's content
global function	AddFilesToList	Builds a list of all files under a directory with a particular extension
global function	GetSearchPath	Returns the search path as a list of paths
class	CBaseFile	Simple file classes. File I/O mode (text/binary, read/write) is based upon the subclass chosen. Classes with the word Required on them abort with a message if the file can't be opened. Destructores close the file handle, or it can be explicitly closed with the Close() method.
class	COutputFile
class	COutputTextFile
class	CInputFile
class	CInputTextFile
class	CRequiredInputTextFile
class	CRequiredInputFile

keybindings.h

Type	Name	Description (according to header comments)
class	CKeyBindings

meshutils.h

A set of utilities to help with generating meshes.

Type	Name	Description (according to header comments)
global function	GenerateSequentialIndexBuffer
global function	GenerateQuadIndexBuffer
global function	GeneratePolygonIndexBuffer
global function	GenerateLineStripIndexBuffer
global function	GenerateLineLoopIndexBuffer

p4helpers.h

Type	Name	Description (according to header comments)
class	CP4File	Class representing file operations
class	CP4File_Dummy	An override of CP4File performing no Perforce interaction
class	CP4Factory	Class representing a factory for creating other helper objects
class	CP4AutoEditFile	edits the file upon construction
class	CP4AutoAddFile	adds the file upon construction
class	CP4AutoEditAddFile	edits the file upon construction / adds upon destruction

renderutils.h

Type	Name	Description (according to header comments)
global function	RenderWireframeSphere	Renders a wireframe sphere
global function	RenderSphere	Renders a sphere
global function	RenderWireframeBox	Renders a wireframe box relative to an origin
global function	RenderWireframeSweptBox	Renders a swept wireframe box
global function	RenderBox	Renders a solid Box
global function	RenderAxes	Renders axes, red->x, green->y, blue->z (axis aligned)
global function	RenderLine	Renders a line
global function	RenderTriangle	Renders a triangle
global function	RenderQuad	Renders a axis-aligned quad
global function	DrawScreenSpaceRectangle	Renders a screen space quad

riff.h

Type	Name	Description (according to header comments)
interface	IFileReadBinary	This is a simple abstraction that the RIFF classes use to read from files/memory
class	InFileRIFF	Used to read/parse a RIFF format file
class	IterateRIFF	Used to iterate over an InFileRIFF
interface	IFileWriteBinary
class	OutFileRIFF	Used to write a RIFF format file
class	IterateOutputRIFF	Used to iterate over an InFileRIFF Note:This is probably a typo, as IterateOutputRIFF sounds more like iterating over an OutFileRIFF

soundutils.h

Helper methods + classes for sound

Type	Name	Description (according to header comments)
global function	GetWavSoundDuration	Returns the duration of a wav file

tier2dm.h

Type	Name	Description (according to header comments)
global function	ConnectDataModel
global function	InitDataModel
global function	ShutdownDataModel
global function	DisconnectDataModel
template class	CTier2DmAppSystem	Helper empty implementation of an IAppSystem for tier2 libraries

utlstreambuffer.h

Type	Name	Description (according to header comments)
class	CUtlStreamBuffer	Command parsing

vconfig.h

Utilities for setting vproject settings.

Type	Name	Description (according to header comments)
global function	SetVConfigRegistrySetting
global function	GetVConfigRegistrySetting
global function, Win32 only	RemoveObsoleteVConfigRegistrySetting
global function	ConvertObsoleteVConfigRegistrySetting