AABB
AlignmentBehavior
ArriveBehavior
AStar
BFS
BoundingSphere
BVH
BVHNode
Cell
CellSpacePartitioning
CohesionBehavior
CompositeGoal
ConvexHull
Corridor
CostTable
DFS
Dijkstra
Edge
EntityManager
EvadeBehavior
EventDispatcher
Behavior
FollowPathBehavior
FuzzyAND
FuzzyCompositeTerm
FuzzyFAIRLY
FuzzyModule
FuzzyOR
FuzzyRule
FuzzySet
FuzzyTerm
FuzzyVariable
FuzzyVERY
GameEntity
Goal
GoalEvaluator
Graph
GraphUtils
HalfEdge
HeuristicPolicyDijkstra
HeuristicPolicyEuclid
HeuristicPolicyEuclidSquared
HeuristicPolicyManhattan
InterposeBehavior
LeftSCurveFuzzySet
LeftShoulderFuzzySet
LineSegment
Logger
MathUtils
Matrix3
Matrix4
MemoryRecord
MemorySystem
MeshGeometry
MessageDispatcher
MovingEntity
NavEdge
NavMesh
NavMeshLoader
NavNode
Node
NormalDistFuzzySet
OBB
ObstacleAvoidanceBehavior
OffsetPursuitBehavior
OnPathBehavior
Path
Plane
Polygon
Polyhedron
PriorityQueue
PursuitBehavior
Quaternion
Ray
RectangleTriggerRegion
Regular
RightSCurveFuzzySet
RightShoulderFuzzySet
SAT
SeekBehavior
SeparationBehavior
SingletonFuzzySet
Smoother
SphericalTriggerRegion
State
StateMachine
SteeringBehavior
SteeringManager
Task
TaskQueue
Telegram
Think
Time
TriangularFuzzySet
Trigger
TriggerRegion
Vector3
Vehicle
Version
WanderBehavior

getPath

描述

该方法用于通过Dijkstra算法获得两个节点之间的最短路径。

语法

getPath(startNode, endNode, graph)

参数

  • startNode - 起始节点对象或字符串
  • endNode - 终止节点对象或字符串
  • graph - 图对象

返回值

返回一个包含最短路径上节点对象的数组。

示例

const graph = {
  A: { B: 2, C: 4 },
  B: { C: 1, D: 7 },
  C: { D: 3 },
  D: { C: 2 },
};
const startNode = 'A';
const endNode = 'D';

const path = getPath(startNode, endNode, graph);
console.log(path); // ['A', 'B', 'C', 'D']

异常

  • 如果找不到起始节点,则会抛出异常。
  • 如果找不到到达终止节点的路径,则会返回空数组。