The U4DParticle class contains all the kinetic properties of a 3D particle. More...

Inherits U4DEngine::U4DEntity.

Public Member Functions
	U4DParticle ()
	Constructor of class.

	~U4DParticle ()
	Destructor of class.

void	setVelocity (U4DVector3n &uVelocity)
	sets the velocity of the 3D particle More...

void	addForce (U4DVector3n &uForce)
	adds the new force acting on the 3D particle on the current forces More...

void	clearForce ()
	clears all forces More...

U4DVector3n	getVelocity ()
	current velocity of the 3D Particle More...

void	initMass (float uMass)
	initializes the 3D particle with a mass. Default mass is 1.0 More...

float	getMass ()
	gets current mass of 3D particle More...

U4DVector3n	getForce ()
	gets the current sum of all forces acting on the 3D particle More...

U4DVector3n	getGravity ()
	gets the gravity of the particle More...

void	setGravity (U4DVector3n &uGravity)
	sets the gravity of the particle More...

void	setParticleRadialAcceleration (float uParticleRadialAcceleration)
	sets the particle radial acceleration More...

void	setParticleTangentialAcceleration (float uParticleTangentialAcceleration)
	sets the particle tangential acceleration More...

float	getParticleRadialAcceleration ()
	gets the particle radial acceleration More...

float	getParticleTangentialAcceleration ()
	gets the particle tangent acceleration More...

Public Member Functions inherited from U4DEngine::U4DEntity
	U4DEntity ()
	Entity Constructor. It creates the entity with the local orientation set to zero and local position set to the origin. The forwad vector is set to (0.0,0.0,-1.0). Parent and Next pointer set to null.

	~U4DEntity ()
	Entity Destructor.

	U4DEntity (const U4DEntity &value)
	Entity Copy Constructor.

U4DEntity &	operator= (const U4DEntity &value)
	Entity Copy Constructor. More...

void	setName (std::string uName)
	Method which sets the name of the Entity. More...

std::string	getName ()
	Method which returns the name of the Entity. More...

void	setEntityType (ENTITYTYPE uType)
	Method which sets the type of the Entity. More...

ENTITYTYPE	getEntityType ()
	Method which returns the type of the Entity. More...

void	setLocalSpace (U4DDualQuaternion &uLocalSpace)
	Method which sets the local space of the Entity. More...

void	setLocalSpace (U4DMatrix4n &uMatrix)
	Method which sets the local space of the Entity. More...

U4DDualQuaternion	getLocalSpace ()

U4DDualQuaternion	getAbsoluteSpace ()
	Method which returns the absolute space of the Entity. More...

U4DQuaternion	getLocalSpaceOrientation ()
	Method which returns the local orientation space of the Entity. More...

U4DQuaternion	getLocalSpacePosition ()
	Method which returns the local position space of the Entity. More...

U4DQuaternion	getAbsoluteSpaceOrientation ()
	Method which returns the absolute orientation space of the Entity. More...

U4DQuaternion	getAbsoluteSpacePosition ()
	Method which returns the absolute position space of the Entity. More...

void	setLocalSpaceOrientation (U4DQuaternion &uOrientation)
	Method which sets the local space orientation of the Entity. More...

void	setLocalSpacePosition (U4DQuaternion &uPosition)
	Method which sets the local space position of the Entity. More...

U4DVector3n	getLocalOrientation ()
	Method which returns the Local orientation of the Entity. More...

U4DVector3n	getLocalPosition ()
	Method which returns the local position of the Entity. More...

U4DVector3n	getAbsoluteOrientation ()
	Method which returns the absolute orientation of the Entity. More...

U4DVector3n	getAbsolutePosition ()
	Method which returns the absolute position of the Entity. More...

U4DVector3n	getEntityForwardVector ()
	Method which returns the forwad vector of the Entity. More...

void	setEntityForwardVector (U4DVector3n &uForwardVector)
	Method which sets the forward vectof of the Entity. The default value is (0.0,0.0,-1.0) More...

U4DMatrix3n	getAbsoluteMatrixOrientation ()
	Method which returns the absolute orientation of the Entity. More...

U4DMatrix3n	getLocalMatrixOrientation ()
	Method which returns the local orientation of the Entity. More...

void	translateTo (U4DVector3n &translation)
	Method which translates entity to a new position. More...

void	translateTo (float x, float y, float z)
	Method which translates entity to a new position. More...

void	translateTo (U4DVector2n &translation)
	Method which translates entity to a new position. More...

void	translateBy (float x, float y, float z)
	Method which translates entity by certain amount. More...

void	translateBy (U4DVector3n &translation)
	Method which translates entity by a certain amount. More...

void	rotateTo (U4DQuaternion &rotation)
	Method which rotates entity to a new orientation. More...

void	rotateBy (U4DQuaternion &rotation)
	Method which rotates entity by a certain amount. More...

void	rotateTo (float angle, U4DVector3n &axis)
	Method which rotates entity to a new orientation. More...

void	rotateBy (float angle, U4DVector3n &axis)
	Method which rotates entity by certain amount. More...

void	rotateTo (float angleX, float angleY, float angleZ)
	Method which rotates entity to a new orientation. More...

void	rotateBy (float angleX, float angleY, float angleZ)
	Method which rotates entity by a certain amount. More...

void	rotateAboutAxis (float angle, U4DVector3n &axisOrientation, U4DVector3n &axisPosition)
	Method which rotates entity about an axis. More...

void	rotateAboutAxis (U4DQuaternion &uOrientation, U4DVector3n &axisPosition)
	Method which rotates entity about an axis. More...

virtual void	viewInDirection (U4DVector3n &uDestinationPoint)
	Method which sets the view direction of the entity. More...

virtual U4DVector3n	getViewInDirection ()
	Method which rotates the view direction of the entiy. More...

virtual void	render (id< MTLRenderCommandEncoder > uRenderEncoder)
	Renders the current entity. More...

virtual void	update (double dt)
	Updates the state of each entity. More...

virtual void	updateAllUniforms ()

void	setZDepth (int uZDepth)
	Loads all rendering information for the entiy ‍/ virtual void loadRenderingInformation(){};. More...

int	getZDepth ()
	Gets the z-depth value used for rendering ordering. More...

virtual bool	changeState (INPUTELEMENTACTION uInputAction, U4DVector2n uPosition)

virtual U4DRenderEntity *	getRenderEntity ()

Public Member Functions inherited from U4DEngine::U4DEntityNode< U4DEntity >
	U4DEntityNode ()
	Constructor for the class.

	U4DEntityNode (std::string uNodeName)

	~U4DEntityNode ()
	Destructor for the class.

void	addChild (U4DEntity *uChild)
	Method which adds a child node to a scenegraph. More...

void	addChild (U4DEntity uChild, U4DEntity uNext)

void	addChild (U4DEntity *uChild, int uZDepth)
	Method which adds a child entity to a scenegraph at a particular location. More...

void	removeChild (U4DEntity *uChild)
	Method which removes a child node from the scenegraph. More...

void	changeLastDescendant (U4DEntity *uNewLastDescendant)
	Method which changes the node's last descendant in the scenegraph. More...

U4DEntity *	getFirstChild ()
	Method which returns the node's first child in the scenegraph. More...

U4DEntity *	getLastChild ()
	Method which returns the node's last child in the scenegraph. More...

U4DEntity *	getNextSibling ()
	Method which returns the node's next sibling in the scenegraph. More...

U4DEntity *	getPrevSibling ()
	Method which returns the node's previous sibling in the scenegraph. More...

U4DEntity *	prevInPreOrderTraversal ()
	Method which returns the node's previous sibling in pre-order traversal order. More...

U4DEntity *	nextInPreOrderTraversal ()
	Method which returns the node's next pointer in pre-order traversal order. More...

bool	isLeaf ()
	Method which returns true if the node represents a leaf node in the scenegraph. More...

bool	isRoot ()
	Method which returns true if the node represents a root node in the scenegraph. More...

U4DEntity *	getParent ()
	Gets the parent to the entity. More...

U4DEntity *	getRootParent ()
	Gets the root parent (top parent in the scenegraph) of the entity. More...

U4DEntity *	searchChild (std::string uName)

Public Attributes
U4DParticleData	particleData
	The particle Data contains information such as start-color, end-color, emit angle, life and speed of the 3D particle.

Public Attributes inherited from U4DEngine::U4DEntity
U4DDualQuaternion	localSpace
	Local Space of the entity.

U4DDualQuaternion	absoluteSpace
	Absolute Space of the entity.

U4DTransformation *	transformation
	U4DTransformation object pointer in charge of translating/rotating the entity.

U4DVector3n	entityForwardVector
	Forward vector of the entity. This is used to compute the view-direction vector.

int	zDepth
	z-depth used for rendering ordering

Public Attributes inherited from U4DEngine::U4DEntityNode< U4DEntity >
U4DEntity *	parent
	Tree parent pointer.

U4DEntity *	prevSibling
	Tree previous sibling pointer.

U4DEntity *	next
	Tree next pointer.

U4DEntity *	lastDescendant
	Tree last descendant pointer.

Additional Inherited Members
Protected Attributes inherited from U4DEngine::U4DEntity
U4DVector3n	localOrientation
	Entity local orientation.

U4DVector3n	localPosition
	Entity local position.

U4DVector3n	absoluteOrientation
	Entity absolute orientation.

U4DVector3n	absolutePosition
	Entity absolute position.

Detailed Description

The U4DParticle class contains all the kinetic properties of a 3D particle.

Member Function Documentation

◆ addForce()

void U4DEngine::U4DParticle::addForce ( U4DVector3n & uForce )

adds the new force acting on the 3D particle on the current forces

Parameters

uForce force vector

◆ clearForce()

void U4DEngine::U4DParticle::clearForce ( )

clears all forces

clears all forces currently acting on the particle. However, the only forces acting on the particle is gravity. No need to add other forces.

◆ getForce()

U4DVector3n U4DEngine::U4DParticle::getForce ( )

gets the current sum of all forces acting on the 3D particle

Returns: force vector

◆ getGravity()

U4DVector3n U4DEngine::U4DParticle::getGravity ( )

gets the gravity of the particle

Returns: gravity vector

◆ getMass()

float U4DEngine::U4DParticle::getMass ( )

gets current mass of 3D particle

Returns: mass value

◆ getParticleRadialAcceleration()

float U4DEngine::U4DParticle::getParticleRadialAcceleration ( )

gets the particle radial acceleration

Returns: radial acceleration magnitude

◆ getParticleTangentialAcceleration()

float U4DEngine::U4DParticle::getParticleTangentialAcceleration ( )

gets the particle tangent acceleration

Returns: tangent acceleration magnitude

◆ getVelocity()

U4DVector3n U4DEngine::U4DParticle::getVelocity ( )

current velocity of the 3D Particle

Returns: velocity vector

◆ initMass()

void U4DEngine::U4DParticle::initMass ( float uMass )

initializes the 3D particle with a mass. Default mass is 1.0

Parameters

uMass mass value

◆ setGravity()

void U4DEngine::U4DParticle::setGravity ( U4DVector3n & uGravity )

sets the gravity of the particle

Parameters

uGravity gravity vector

◆ setParticleRadialAcceleration()

void U4DEngine::U4DParticle::setParticleRadialAcceleration ( float uParticleRadialAcceleration )

sets the particle radial acceleration

Parameters

particle radial acceleration magnitude

◆ setParticleTangentialAcceleration()

void U4DEngine::U4DParticle::setParticleTangentialAcceleration ( float uParticleTangentialAcceleration )

sets the particle tangential acceleration

Parameters

particle tangential acceleration magnitude

◆ setVelocity()

void U4DEngine::U4DParticle::setVelocity ( U4DVector3n & uVelocity )

sets the velocity of the 3D particle

Parameters

uVelocity velocity vector

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ addForce()

◆ clearForce()

◆ getForce()

◆ getGravity()

◆ getMass()

◆ getParticleRadialAcceleration()

◆ getParticleTangentialAcceleration()

◆ getVelocity()

◆ initMass()

◆ setGravity()

◆ setParticleRadialAcceleration()

◆ setParticleTangentialAcceleration()

◆ setVelocity()