HalfEdge.prev | Yuka.js开发手册

AABB

AlignmentBehavior

AlignmentBehavior.active AlignmentBehavior.weight AlignmentBehavior.calculate AlignmentBehavior.fromJSON AlignmentBehavior.resolveReferences AlignmentBehavior.toJSON

ArriveBehavior

ArriveBehavior.active ArriveBehavior.deceleration ArriveBehavior.target ArriveBehavior.tolerance ArriveBehavior.weight ArriveBehavior.calculate ArriveBehavior.fromJSON ArriveBehavior.resolveReferences ArriveBehavior.toJSON

AStar

AStar.found AStar.graph AStar.heuristic AStar.source AStar.target AStar.clear AStar.getPath AStar.getSearchTree AStar.search

BFS

BFS.found BFS.graph BFS.source BFS.target BFS.clear BFS.getPath BFS.getSearchTree BFS.search

BoundingSphere

BoundingSphere.center BoundingSphere.radius BoundingSphere.applyMatrix4 BoundingSphere.clampPoint BoundingSphere.clone BoundingSphere.containsPoint BoundingSphere.copy BoundingSphere.equals BoundingSphere.fromJSON BoundingSphere.fromPoints BoundingSphere.getNormalFromSurfacePoint BoundingSphere.intersectsBoundingSphere BoundingSphere.intersectsPlane BoundingSphere.set BoundingSphere.toJSON

BVH

BVH.branchingFactor BVH.depth BVH.primitivesPerNode BVH.root BVH.fromMeshGeometry BVH.traverse

BVHNode

BVHNode.boundingVolume BVHNode.centroids BVHNode.children BVHNode.parent BVHNode.primitives BVHNode.build BVHNode.computeBoundingVolume BVHNode.computeSplitAxis BVHNode.getDepth BVHNode.intersectRay BVHNode.intersectsRay BVHNode.leaf BVHNode.root BVHNode.split BVHNode.traverse

Cell

Cell.aabb Cell.entries Cell.add Cell.empty Cell.fromJSON Cell.intersects Cell.makeEmpty Cell.remove Cell.resolveReferences Cell.toJSON

CellSpacePartitioning

CohesionBehavior

CohesionBehavior.active CohesionBehavior.weight CohesionBehavior.calculate CohesionBehavior.fromJSON CohesionBehavior.resolveReferences CohesionBehavior.toJSON

CompositeGoal

ConvexHull

ConvexHull.centroid ConvexHull.edges ConvexHull.faces ConvexHull.mergeFaces ConvexHull.vertices ConvexHull.computeCentroid ConvexHull.computeUniqueEdges ConvexHull.computeUniqueVertices ConvexHull.containsPoint ConvexHull.fromAABB ConvexHull.fromPoints ConvexHull.intersectsAABB ConvexHull.intersectsConvexHull

Corridor

Corridor.portalEdges Corridor.generate Corridor.push

CostTable

CostTable.clear CostTable.fromJSON CostTable.get CostTable.init CostTable.set CostTable.size CostTable.toJSON

DFS

DFS.found DFS.graph DFS.source DFS.target DFS.clear DFS.getPath DFS.getSearchTree DFS.search

Dijkstra

Dijkstra.found Dijkstra.graph Dijkstra.source Dijkstra.target Dijkstra.clear Dijkstra.getPath Dijkstra.getSearchTree Dijkstra.search

Edge

Edge.cost Edge.from Edge.to Edge.clone Edge.copy Edge.fromJSON Edge.toJSON

EntityManager

EntityManager.entities EntityManager.spatialIndex EntityManager.add EntityManager.clear EntityManager.fromJSON EntityManager.getEntityByName EntityManager.processTrigger EntityManager.registerType EntityManager.remove EntityManager.sendMessage EntityManager.toJSON EntityManager.update EntityManager.updateEntity EntityManager.updateNeighborhood

EvadeBehavior

EvadeBehavior.active EvadeBehavior.panicDistance EvadeBehavior.predictionFactor EvadeBehavior.pursuer EvadeBehavior.weight EvadeBehavior.calculate EvadeBehavior.fromJSON EvadeBehavior.resolveReferences EvadeBehavior.toJSON

EventDispatcher

EventDispatcher.addEventListener EventDispatcher.dispatchEvent EventDispatcher.hasEventListener EventDispatcher.removeEventListener

Behavior

Behavior.active Behavior.panicDistance Behavior.target Behavior.weight Behavior.calculate Behavior.fromJSON Behavior.resolveReferences Behavior.toJSON

FollowPathBehavior

FollowPathBehavior.active FollowPathBehavior.nextWaypointDistance FollowPathBehavior.path FollowPathBehavior.weight FollowPathBehavior.calculate FollowPathBehavior.fromJSON FollowPathBehavior.resolveReferences FollowPathBehavior.toJSON

FuzzyAND

FuzzyAND.terms FuzzyAND.clearDegreeOfMembership FuzzyAND.getDegreeOfMembership FuzzyAND.toJSON FuzzyAND.updateDegreeOfMembership

FuzzyCompositeTerm

FuzzyCompositeTerm.terms FuzzyCompositeTerm.clearDegreeOfMembership FuzzyCompositeTerm.getDegreeOfMembership FuzzyCompositeTerm.toJSON FuzzyCompositeTerm.updateDegreeOfMembership

FuzzyFAIRLY

FuzzyFAIRLY.terms FuzzyFAIRLY.clearDegreeOfMembership FuzzyFAIRLY.getDegreeOfMembership FuzzyFAIRLY.toJSON FuzzyFAIRLY.updateDegreeOfMembership

FuzzyModule

FuzzyModule.flvs FuzzyModule.rules FuzzyModule.addFLV FuzzyModule.addRule FuzzyModule.defuzzify FuzzyModule.fromJSON FuzzyModule.fuzzify FuzzyModule.removeFLV FuzzyModule.removeRule FuzzyModule.toJSON

FuzzyOR

FuzzyOR.terms FuzzyOR.clearDegreeOfMembership FuzzyOR.getDegreeOfMembership FuzzyOR.toJSON FuzzyOR.updateDegreeOfMembership

FuzzyRule

FuzzyRule.antecedent FuzzyRule.consequence FuzzyRule.evaluate FuzzyRule.fromJSON FuzzyRule.initConsequence FuzzyRule.toJSON

FuzzySet

FuzzySet.degreeOfMembership FuzzySet.left FuzzySet.representativeValue FuzzySet.right FuzzySet.uuid FuzzySet.clearDegreeOfMembership FuzzySet.computeDegreeOfMembership FuzzySet.fromJSON FuzzySet.getDegreeOfMembership FuzzySet.toJSON FuzzySet.updateDegreeOfMembership

FuzzyTerm

FuzzyTerm.clearDegreeOfMembership FuzzyTerm.getDegreeOfMembership FuzzyTerm.toJSON FuzzyTerm.updateDegreeOfMembership

FuzzyVariable

FuzzyVariable.fuzzySets FuzzyVariable.maxRange FuzzyVariable.minRange FuzzyVariable.add FuzzyVariable.defuzzifyCentroid FuzzyVariable.defuzzifyMaxAv FuzzyVariable.fromJSON FuzzyVariable.fuzzify FuzzyVariable.remove FuzzyVariable.toJSON

FuzzyVERY

FuzzyVERY.terms FuzzyVERY.clearDegreeOfMembership FuzzyVERY.getDegreeOfMembership FuzzyVERY.toJSON FuzzyVERY.updateDegreeOfMembership

GameEntity

Goal

Goal.owner Goal.status Goal.activate Goal.activateIfInactive Goal.active Goal.completed Goal.execute Goal.failed Goal.fromJSON Goal.handleMessage Goal.inactive Goal.replanIfFailed Goal.resolveReferences Goal.terminate Goal.toJSON

GoalEvaluator

GoalEvaluator.characterBias GoalEvaluator.calculateDesirability GoalEvaluator.fromJSON GoalEvaluator.setGoal GoalEvaluator.toJSON

Graph

Graph.digraph Graph.addEdge Graph.addNode Graph.clear Graph.fromJSON Graph.getEdge Graph.getEdgeCount Graph.getEdgesOfNode Graph.getNode Graph.getNodeCount Graph.getNodes Graph.hasEdge Graph.hasNode Graph.removeEdge Graph.removeNode Graph.toJSON

GraphUtils

GraphUtils.createGridLayout

HalfEdge

HalfEdge.next HalfEdge.polygon HalfEdge.prev HalfEdge.twin HalfEdge.vertex HalfEdge.getDirection HalfEdge.head HalfEdge.length HalfEdge.linkOpponent HalfEdge.squaredLength HalfEdge.tail

HeuristicPolicyDijkstra

HeuristicPolicyDijkstra.calculate

HeuristicPolicyEuclid

HeuristicPolicyEuclid.calculate

HeuristicPolicyEuclidSquared

HeuristicPolicyEuclidSquared.calculate

HeuristicPolicyManhattan

HeuristicPolicyManhattan.calculate

InterposeBehavior

InterposeBehavior.active InterposeBehavior.deceleration InterposeBehavior.entity1 InterposeBehavior.entity2 InterposeBehavior.weight InterposeBehavior.calculate InterposeBehavior.fromJSON InterposeBehavior.resolveReferences InterposeBehavior.toJSON

LeftSCurveFuzzySet

LeftSCurveFuzzySet.degreeOfMembership LeftSCurveFuzzySet.left LeftSCurveFuzzySet.midpoint LeftSCurveFuzzySet.representativeValue LeftSCurveFuzzySet.right LeftSCurveFuzzySet.uuid LeftSCurveFuzzySet.clearDegreeOfMembership LeftSCurveFuzzySet.computeDegreeOfMembership LeftSCurveFuzzySet.fromJSON LeftSCurveFuzzySet.getDegreeOfMembership LeftSCurveFuzzySet.toJSON LeftSCurveFuzzySet.updateDegreeOfMembership

LeftShoulderFuzzySet

LeftShoulderFuzzySet.degreeOfMembership LeftShoulderFuzzySet.left LeftShoulderFuzzySet.midpoint LeftShoulderFuzzySet.representativeValue LeftShoulderFuzzySet.right LeftShoulderFuzzySet.uuid LeftShoulderFuzzySet.clearDegreeOfMembership LeftShoulderFuzzySet.computeDegreeOfMembership LeftShoulderFuzzySet.fromJSON LeftShoulderFuzzySet.getDegreeOfMembership LeftShoulderFuzzySet.toJSON LeftShoulderFuzzySet.updateDegreeOfMembership

LineSegment

LineSegment.from LineSegment.to LineSegment.at LineSegment.clone LineSegment.closestPointToPoint LineSegment.closestPointToPointParameter LineSegment.copy LineSegment.delta LineSegment.equals LineSegment.set

Logger

Logger.error Logger.log Logger.setLevel Logger.warn

MathUtils

MathUtils.area MathUtils.argmax MathUtils.choice MathUtils.clamp MathUtils.generateUUID MathUtils.randFloat MathUtils.randInt

Matrix3

Matrix4

MemoryRecord

MemoryRecord.entity MemoryRecord.lastSensedPosition MemoryRecord.timeBecameVisible MemoryRecord.timeLastSensed MemoryRecord.visible MemoryRecord.fromJSON MemoryRecord.resolveReferences MemoryRecord.toJSON

MemorySystem

MemorySystem.memorySpan MemorySystem.owner MemorySystem.records MemorySystem.recordsMap MemorySystem.clear MemorySystem.createRecord MemorySystem.deleteRecord MemorySystem.fromJSON MemorySystem.getRecord MemorySystem.getValidMemoryRecords MemorySystem.hasRecord MemorySystem.resolveReferences MemorySystem.toJSON

MeshGeometry

MeshGeometry.aabb MeshGeometry.backfaceCulling MeshGeometry.boundingSphere MeshGeometry.indices MeshGeometry.vertices MeshGeometry.computeBoundingVolume MeshGeometry.fromJSON MeshGeometry.intersectRay MeshGeometry.toJSON MeshGeometry.toTriangleSoup

MessageDispatcher

MessageDispatcher.delayedTelegrams MessageDispatcher.clear MessageDispatcher.deliver MessageDispatcher.dispatch MessageDispatcher.dispatchDelayedMessages MessageDispatcher.fromJSON MessageDispatcher.resolveReferences MessageDispatcher.toJSON

MovingEntity

MovingEntity.active MovingEntity.boundingRadius MovingEntity.canActivateTrigger MovingEntity.children MovingEntity.forward MovingEntity.manager MovingEntity.maxSpeed MovingEntity.maxTurnRate MovingEntity.name MovingEntity.neighborhoodRadius MovingEntity.neighbors MovingEntity.parent MovingEntity.position MovingEntity.rotation MovingEntity.scale MovingEntity.up MovingEntity.updateNeighborhood MovingEntity.updateOrientation MovingEntity.uuid MovingEntity.velocity MovingEntity.worldMatrix MovingEntity.add MovingEntity.fromJSON MovingEntity.getDirection MovingEntity.getSpeed MovingEntity.getSpeedSquared MovingEntity.getWorldDirection MovingEntity.getWorldPosition MovingEntity.handleMessage MovingEntity.lineOfSightTest MovingEntity.lookAt MovingEntity.remove MovingEntity.resolveReferences MovingEntity.rotateTo MovingEntity.sendMessage MovingEntity.setRenderComponent MovingEntity.start MovingEntity.toJSON MovingEntity.update

NavEdge

NavEdge.cost NavEdge.from NavEdge.to NavEdge.clone NavEdge.copy NavEdge.fromJSON NavEdge.toJSON

NavMesh

NavMesh.epsilonContainsTest NavMesh.epsilonCoplanarTest NavMesh.graph NavMesh.mergeConvexRegions NavMesh.regions NavMesh.spatialIndex NavMesh.clampMovement NavMesh.clear NavMesh.findPath NavMesh.fromPolygons NavMesh.getClosestRegion NavMesh.getNodeIndex NavMesh.getRandomRegion NavMesh.getRegionForPoint NavMesh.updateSpatialIndex

NavMeshLoader

NavMeshLoader.load NavMeshLoader.parse

NavNode

NavNode.index NavNode.position NavNode.userData NavNode.fromJSON NavNode.toJSON

Node

Node.index Node.fromJSON Node.toJSON

NormalDistFuzzySet

NormalDistFuzzySet.degreeOfMembership NormalDistFuzzySet.left NormalDistFuzzySet.midpoint NormalDistFuzzySet.representativeValue NormalDistFuzzySet.right NormalDistFuzzySet.standardDeviation NormalDistFuzzySet.uuid NormalDistFuzzySet.clearDegreeOfMembership NormalDistFuzzySet.computeDegreeOfMembership NormalDistFuzzySet.fromJSON NormalDistFuzzySet.getDegreeOfMembership NormalDistFuzzySet.toJSON NormalDistFuzzySet.updateDegreeOfMembership

OBB

OBB.center OBB.halfSizes OBB.rotation OBB.clampPoint OBB.clone OBB.containsPoint OBB.copy OBB.equals OBB.fromAABB OBB.fromJSON OBB.fromPoints OBB.getSize OBB.intersectsAABB OBB.intersectsBoundingSphere OBB.intersectsOBB OBB.intersectsPlane OBB.set OBB.toJSON

ObstacleAvoidanceBehavior

ObstacleAvoidanceBehavior.active ObstacleAvoidanceBehavior.brakingWeight ObstacleAvoidanceBehavior.dBoxMinLength ObstacleAvoidanceBehavior.obstacles ObstacleAvoidanceBehavior.weight ObstacleAvoidanceBehavior.calculate ObstacleAvoidanceBehavior.fromJSON ObstacleAvoidanceBehavior.resolveReferences ObstacleAvoidanceBehavior.toJSON

OffsetPursuitBehavior

OffsetPursuitBehavior.active OffsetPursuitBehavior.leader OffsetPursuitBehavior.offset OffsetPursuitBehavior.weight OffsetPursuitBehavior.calculate OffsetPursuitBehavior.fromJSON OffsetPursuitBehavior.resolveReferences OffsetPursuitBehavior.toJSON

OnPathBehavior

OnPathBehavior.active OnPathBehavior.path OnPathBehavior.predictionFactor OnPathBehavior.radius OnPathBehavior.weight OnPathBehavior.calculate OnPathBehavior.fromJSON OnPathBehavior.resolveReferences OnPathBehavior.toJSON

Path

Path.loop Path.add Path.advance Path.clear Path.current Path.finished Path.fromJSON Path.toJSON

Plane

Plane.constant Plane.normal Plane.clone Plane.copy Plane.distanceToPoint Plane.equals Plane.fromCoplanarPoints Plane.fromNormalAndCoplanarPoint Plane.intersectPlane Plane.intersectsPlane Plane.projectPoint Plane.set

Polygon

Polygon.centroid Polygon.edge Polygon.plane Polygon.computeCentroid Polygon.contains Polygon.convex Polygon.coplanar Polygon.distanceToPoint Polygon.fromContour Polygon.getContour

Polyhedron

Polyhedron.centroid Polyhedron.edges Polyhedron.faces Polyhedron.vertices Polyhedron.computeCentroid Polyhedron.computeUniqueEdges Polyhedron.computeUniqueVertices Polyhedron.fromAABB

PriorityQueue

PriorityQueue.compare PriorityQueue.data PriorityQueue.length PriorityQueue.peek PriorityQueue.pop PriorityQueue.push

PursuitBehavior

PursuitBehavior.active PursuitBehavior.evader PursuitBehavior.predictionFactor PursuitBehavior.weight PursuitBehavior.calculate PursuitBehavior.fromJSON PursuitBehavior.resolveReferences PursuitBehavior.toJSON

Quaternion

Ray

RectangleTriggerRegion

RectangleTriggerRegion.size RectangleTriggerRegion.fromJSON RectangleTriggerRegion.toJSON RectangleTriggerRegion.touching RectangleTriggerRegion.update

Regular

Regular.updateFrequency Regular.ready

RightSCurveFuzzySet

RightSCurveFuzzySet.degreeOfMembership RightSCurveFuzzySet.left RightSCurveFuzzySet.midpoint RightSCurveFuzzySet.representativeValue RightSCurveFuzzySet.right RightSCurveFuzzySet.uuid RightSCurveFuzzySet.clearDegreeOfMembership RightSCurveFuzzySet.computeDegreeOfMembership RightSCurveFuzzySet.fromJSON RightSCurveFuzzySet.getDegreeOfMembership RightSCurveFuzzySet.toJSON RightSCurveFuzzySet.updateDegreeOfMembership

RightShoulderFuzzySet

RightShoulderFuzzySet.degreeOfMembership RightShoulderFuzzySet.left RightShoulderFuzzySet.midpoint RightShoulderFuzzySet.representativeValue RightShoulderFuzzySet.right RightShoulderFuzzySet.uuid RightShoulderFuzzySet.clearDegreeOfMembership RightShoulderFuzzySet.computeDegreeOfMembership RightShoulderFuzzySet.fromJSON RightShoulderFuzzySet.getDegreeOfMembership RightShoulderFuzzySet.toJSON RightShoulderFuzzySet.updateDegreeOfMembership

SAT

SAT.intersects

SeekBehavior

SeekBehavior.active SeekBehavior.target SeekBehavior.weight SeekBehavior.calculate SeekBehavior.fromJSON SeekBehavior.resolveReferences SeekBehavior.toJSON

SeparationBehavior

SeparationBehavior.active SeparationBehavior.weight SeparationBehavior.calculate SeparationBehavior.fromJSON SeparationBehavior.resolveReferences SeparationBehavior.toJSON

SingletonFuzzySet

SingletonFuzzySet.degreeOfMembership SingletonFuzzySet.left SingletonFuzzySet.midpoint SingletonFuzzySet.representativeValue SingletonFuzzySet.right SingletonFuzzySet.uuid SingletonFuzzySet.clearDegreeOfMembership SingletonFuzzySet.computeDegreeOfMembership SingletonFuzzySet.fromJSON SingletonFuzzySet.getDegreeOfMembership SingletonFuzzySet.toJSON SingletonFuzzySet.updateDegreeOfMembership

Smoother

Smoother.count Smoother.calculate Smoother.fromJSON Smoother.toJSON

SphericalTriggerRegion

SphericalTriggerRegion.radius SphericalTriggerRegion.fromJSON SphericalTriggerRegion.toJSON SphericalTriggerRegion.touching SphericalTriggerRegion.update

State

State.enter State.execute State.exit State.fromJSON State.onMessage State.resolveReferences State.toJSON

StateMachine

StateMachine.currentState StateMachine.globalState StateMachine.owner StateMachine.previousState StateMachine.states StateMachine.add StateMachine.changeTo StateMachine.fromJSON StateMachine.get StateMachine.handleMessage StateMachine.in StateMachine.registerType StateMachine.remove StateMachine.resolveReferences StateMachine.revert StateMachine.toJSON StateMachine.update

SteeringBehavior

SteeringBehavior.active SteeringBehavior.weight SteeringBehavior.calculate SteeringBehavior.fromJSON SteeringBehavior.resolveReferences SteeringBehavior.toJSON

SteeringManager

SteeringManager.behaviors SteeringManager.vehicle SteeringManager.add SteeringManager.calculate SteeringManager.clear SteeringManager.fromJSON SteeringManager.registerType SteeringManager.remove SteeringManager.resolveReferences SteeringManager.toJSON

Task

Task.execute

TaskQueue

TaskQueue.options TaskQueue.tasks TaskQueue.enqueue TaskQueue.update

Telegram.data Telegram.delay Telegram.message Telegram.receiver Telegram.sender Telegram.fromJSON Telegram.resolveReferences Telegram.toJSON

Think

Time

Time.disableFixedDelta Time.dispose Time.enableFixedDelta Time.getDelta Time.getElapsed Time.getFixedDelta Time.getTimescale Time.reset Time.setFixedDelta Time.setTimescale Time.update

TriangularFuzzySet

TriangularFuzzySet.degreeOfMembership TriangularFuzzySet.left TriangularFuzzySet.midpoint TriangularFuzzySet.representativeValue TriangularFuzzySet.right TriangularFuzzySet.uuid TriangularFuzzySet.clearDegreeOfMembership TriangularFuzzySet.computeDegreeOfMembership TriangularFuzzySet.fromJSON TriangularFuzzySet.getDegreeOfMembership TriangularFuzzySet.toJSON TriangularFuzzySet.updateDegreeOfMembership

Trigger

TriggerRegion

TriggerRegion.fromJSON TriggerRegion.toJSON TriggerRegion.touching TriggerRegion.update

Vector3

Vehicle

Version

Version.fieldOfView Version.obstacles Version.owner Version.range Version.addObstacle Version.fromJSON Version.removeObstacle Version.resolveReferences Version.toJSON Version.visible

WanderBehavior

WanderBehavior.active WanderBehavior.distance WanderBehavior.jitter WanderBehavior.radius WanderBehavior.weight WanderBehavior.calculate WanderBehavior.fromJSON WanderBehavior.resolveReferences WanderBehavior.toJSON

简介

prev() 方法返回与当前HalfEdge相邻的上一个HalfEdge。

语法

var prevHalfEdge = halfEdge.prev();

参数

无参数。

返回值

返回一个HalfEdge对象，即与当前HalfEdge相邻的上一个HalfEdge。

示例

var prevHalfEdge = halfEdge.prev();

备注

调用prev()方法前，应该先确保该HalfEdge对象已经被添加到HalfEdge数据结构中，否则可能会出现错误。