IParticleVar Class Reference

Interface for particle state variables, which get evaluated for each newly constructed particle. More...

Inheritance diagram for IParticleVar:

Public Member Functions
	IParticleVar ()
virtual	~IParticleVar ()
float	Evaluate (CParticleEmitter &emitter)
	Computes and returns a new value. More...
float	LastValue ()
	Returns the last value that Evaluate returned. More...
virtual float	Min (CParticleEmitterType &type)=0
	Returns the minimum value that Evaluate might ever return, for computing bounds. More...
virtual float	Max (CParticleEmitterType &type)=0
	Returns the maximum value that Evaluate might ever return, for computing bounds. More...

Protected Member Functions
virtual float	Compute (CParticleEmitterType &type, CParticleEmitter &emitter)=0

Private Attributes
float	m_LastValue

Detailed Description

Interface for particle state variables, which get evaluated for each newly constructed particle.

Definition at line 40 of file ParticleEmitterType.cpp.

Constructor & Destructor Documentation

IParticleVar::IParticleVar ( )

inline

Definition at line 43 of file ParticleEmitterType.cpp.

virtual IParticleVar::~IParticleVar ( )

inlinevirtual

Definition at line 44 of file ParticleEmitterType.cpp.

Member Function Documentation

virtual float IParticleVar::Compute ( CParticleEmitterType &  type, CParticleEmitter &  emitter  )

protectedpure virtual

Implemented in CParticleVarExpr, CParticleVarCopy, CParticleVarUniform, and CParticleVarConstant.

float IParticleVar::Evaluate ( CParticleEmitter &  emitter )

inline

Computes and returns a new value.

Definition at line 47 of file ParticleEmitterType.cpp.

float IParticleVar::LastValue ( )

inline

Returns the last value that Evaluate returned.

This is used for variables that depend on other variables (which is kind of fragile since it's very order-dependent), so they don't get re-randomised and don't have a danger of infinite recursion.

Definition at line 59 of file ParticleEmitterType.cpp.

virtual float IParticleVar::Max ( CParticleEmitterType &  type )

pure virtual

Returns the maximum value that Evaluate might ever return, for computing bounds.

Implemented in CParticleVarExpr, CParticleVarCopy, CParticleVarUniform, and CParticleVarConstant.

virtual float IParticleVar::Min ( CParticleEmitterType &  type )

pure virtual

Returns the minimum value that Evaluate might ever return, for computing bounds.

Implemented in CParticleVarExpr, CParticleVarCopy, CParticleVarUniform, and CParticleVarConstant.

Member Data Documentation

float IParticleVar::m_LastValue

private

Definition at line 77 of file ParticleEmitterType.cpp.

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The documentation for this class was generated from the following file:

• /home/sathyam/0ad.svn/source/graphics/ParticleEmitterType.cpp