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name: Path
type: class
memory_category: Instances
summary: |
  Stores the result of paths created by `Class.PathfindingService:CreatePath()`.
description: |
  **Path** objects store the result of paths created by
  `Class.PathfindingService:CreatePath()`.

  Once a path object is created, you can call `Class.Path:ComputeAsync()` with a
  starting point and ending point. This will attempt to compute a valid path for
  a character to move along, based on default or custom parameters passed to
  `Class.PathfindingService:CreatePath()|CreatePath()`. If
  `Class.Path:ComputeAsync()|ComputeAsync()` successfully finds a path, the
  `Class.Path` object will have a `Class.Path.Status` value of
  `Enum.PathStatus.Success`. Otherwise the status will be
  `Enum.PathStatus.NoPath` which can occur if there are obstacles between the
  two points (and no way around) or if the points are inside of solid objects.

  In addition to `Class.Path:ComputeAsync()|ComputeAsync()`, `Class.Path`
  objects have the `Class.Path:GetWaypoints()|GetWaypoints()` method which
  returns a list of waypoints representing the points a character should follow
  in sequence to get from the beginning to the end of the path.

  Finally, `Class.Path` objects can be **connected** to the `Class.Path.Blocked`
  event. This event will fire if, at any time during the path's existence, the
  path is blocked. Note that this can occur **behind** a character moving along
  the path, not just in front of it.
code_samples: []
inherits:
  - Instance
descendants: []
tags:
  - NotCreatable
  - NotReplicated
deprecation_message: ''
properties:
  - name: Path.Status
    summary: |
      The success of the generated `Class.Path`.
    description: |
      The success of the generated `Class.Path`.
    code_samples: []
    type: PathStatus
    tags:
      - ReadOnly
      - NotReplicated
    deprecation_message: ''
    security:
      read: None
      write: None
    thread_safety: ReadSafe
    category: Data
    serialization:
      can_load: false
      can_save: true
    capabilities:
      - Basic
methods:
  - name: Path:CheckOcclusionAsync
    summary: |
      Checks if a path is blocked starting at a specific waypoint.
    description: |
      This function checks if a path is blocked starting at the waypoint
      indicated by **start**.

      It returns the first waypoint of occlusion if blocked, -1 if not. it
      returns an error if **start** is less than 0 or greater than the number of
      waypoints in the `Class.Path`.
    code_samples: []
    parameters:
      - name: start
        type: int
        default:
        summary: ''
    returns:
      - type: int
        summary: ''
    tags:
      - Yields
    deprecation_message: |
      This function has been superseded by the `Class.Path.Blocked` event which
      you can connect to a `Class.Path` object and should be used instead. This
      lets you detect if the path becomes blocked at any time during its
      existence.
    security: None
    thread_safety: Unsafe
    capabilities:
      - Basic
  - name: Path:ComputeAsync
    summary: |
      Computes a `Class.Path` from a start position to an end position.
    description: |
      This function computes a `Class.Path` from a start position to an end
      position. This function is not automatically called when a path is created
      and must be invoked each time the path needs to be updated.

      Once the Path is computed, it will have a series of waypoints that, when
      followed, can lead a character along the path. These points are gathered
      with the `Class.Path:GetWaypoints()` function.
    code_samples:
      - using-the-pathfinding-service
    parameters:
      - name: start
        type: Vector3
        default:
        summary: |
          The world position where the computed path begins.
      - name: finish
        type: Vector3
        default:
        summary: |
          The world position where the computed path finishes.
    returns:
      - type: ()
        summary: ''
    tags:
      - Yields
    deprecation_message: ''
    security: None
    thread_safety: Unsafe
    capabilities:
      - Basic
  - name: Path:GetPointCoordinates
    summary: |
      Returns a table of `Class.Path` instances.
    description: |
      This function returns a table of `Class.Path` instances.
    code_samples: []
    parameters: []
    returns:
      - type: Array
        summary: ''
    tags:
      - Deprecated
    deprecation_message: |
      This item has been superseded by `Class.Path:GetWaypoints()` which should
      be used in all new work instead.
    security: None
    thread_safety: Unsafe
    capabilities:
      - Basic
  - name: Path:GetWaypoints
    summary: |
      Returns an array of points in the path.
    description: |
      This function returns an array of all the
      `Datatype.PathWaypoint|PathWaypoints` in a `Class.Path`, as computed by
      `Class.Path:ComputeAsync()`.

      Each waypoint in the array specifies a `Datatype.Vector3` position and
      `Enum.PathWaypointAction|action` to take when this PathWaypoint is
      reached. The array is arranged in the order of waypoints from the path
      start to path end.

      If a path could not be computed, this function will return an empty array.
    code_samples:
      - Path-GetWaypoints1
    parameters: []
    returns:
      - type: Array
        summary: |
          An array of `Datatype.PathWaypoint|PathWaypoints` ordered from path
          start to path end.
    tags: []
    deprecation_message: ''
    security: None
    thread_safety: Unsafe
    capabilities:
      - Basic
events:
  - name: Path.Blocked
    summary: |
      Fires when the computed path becomes blocked.
    description: |
      Fires when the computed path becomes blocked. Note that paths may become
      blocked somewhere **behind** the agent, such as a pile of rubble falling
      on a path as the agent runs away. See
      [Handling Blocked Paths](../../../characters/pathfinding.md#handling-blocked-paths)
      for details on checking the forward waypoint progress of an agent along a
      path.
    code_samples: []
    parameters:
      - name: blockedWaypointIdx
        type: int
        default:
        summary: ''
    tags: []
    deprecation_message: ''
    security: None
    capabilities:
      - Basic
  - name: Path.Unblocked
    summary: |
      Fires when a computed path that was blocked becomes unblocked.
    description: |
      Fires when a computed path that was blocked becomes unblocked. Note that a
      blocked path may become unblocked somewhere **behind** the agent,
      effectively making reaction to this event unnecessary. See
      [Handling Blocked Paths](../../../characters/pathfinding.md#handling-blocked-paths)
      for details on checking the forward waypoint progress of an agent along a
      path.
    code_samples: []
    parameters:
      - name: unblockedWaypointIdx
        type: int
        default:
        summary: ''
    tags: []
    deprecation_message: ''
    security: None
    capabilities:
      - Basic
callbacks: []