Package openmw.nearby¶

openmw.nearby provides read-only access to the nearest area of the game world.

Can be used only from local scripts.

Usage:

local nearby = require('openmw.nearby')

Type `nearby`

nearby.COLLISION_TYPE	Collision types that are used in `castRay`.
nearby.activators	List of nearby activators.
nearby.actors	List of nearby actors.
nearby.asyncCastRenderingRay(callback, from, to)	Asynchronously cast ray from one point to another and find the first visual intersection with anything in the scene.
nearby.castNavigationRay(from, to, options)	Finds a nearest to the ray target position starting from the initial position with resulting curve drawn on the navigation mesh surface.
nearby.castRay(from, to, options)	Cast ray from one point to another and return the first collision.
nearby.castRenderingRay(from, to)	Cast ray from one point to another and find the first visual intersection with anything in the scene.
nearby.containers	List of nearby containers.
nearby.doors	List of nearby doors.
nearby.findPath(source, destination, options)	Find path over navigation mesh from source to destination with given options.
nearby.findRandomPointAroundCircle(position, maxRadius, options)	Returns random location on navigation mesh within the reach of specified location.
nearby.items	Everything that can be picked up in the nearby.

Type `COLLISION_SHAPE_TYPE`

COLLISION_SHAPE_TYPE.Aabb	Axis-Aligned Bounding Box is used for NPC and symmetric Creatures;
COLLISION_SHAPE_TYPE.Cylinder	is used for NPC and symmetric Creatures.
COLLISION_SHAPE_TYPE.RotatingBox	is used for Creatures with big difference in width and height;

Type `COLLISION_TYPE`

COLLISION_TYPE.Actor
COLLISION_TYPE.AnyPhysical	: World+Door+Actor+HeightMap+Projectile+Water
COLLISION_TYPE.Camera	Objects that should collide only with camera
COLLISION_TYPE.Default	Used by default: World+Door+Actor+HeightMap
COLLISION_TYPE.Door
COLLISION_TYPE.HeightMap
COLLISION_TYPE.Projectile
COLLISION_TYPE.VisualOnly	Objects that were not intended to be part of the physics world
COLLISION_TYPE.Water
COLLISION_TYPE.World

Type `FIND_PATH_STATUS`

FIND_PATH_STATUS.EndPolygonNotFound	`destination` position is too far from available navigation mesh. The status may appear when navigation mesh is not fully generated or position is outside of covered area;
FIND_PATH_STATUS.FindPathOverPolygonsFailed	Path over navigation mesh from `source` to `destination` does not exist or navigation mesh is not fully generated to provide the path;
FIND_PATH_STATUS.InitNavMeshQueryFailed	Couldn't initialize required data due to bad input or bad navigation mesh data.
FIND_PATH_STATUS.MoveAlongSurfaceFailed	Found path couldn't be smoothed due to imperfect algorithm implementation or bad navigation mesh data;
FIND_PATH_STATUS.NavMeshNotFound	Provided `agentBounds` don't have corresponding navigation mesh. For interior cells it means an agent with such `agentBounds` is present on the scene. For exterior cells only default `agentBounds` is supported;
FIND_PATH_STATUS.PartialPath	Last path point is not a destination but a nearest position among found;
FIND_PATH_STATUS.StartPolygonNotFound	`source` position is too far from available navigation mesh. The status may appear when navigation mesh is not fully generated or position is outside of covered area;
FIND_PATH_STATUS.Success	Path is found;

Type `NAVIGATOR_FLAGS`

NAVIGATOR_FLAGS.OpenDoor	allow agent to open doors on the way;
NAVIGATOR_FLAGS.Swim	allow agent to swim on the water surface;
NAVIGATOR_FLAGS.UsePathgrid	allow agent to use predefined pathgrid imported from ESM files.
NAVIGATOR_FLAGS.Walk	allow agent to walk on the ground area;

Type `RayCastingResult`

RayCastingResult.hit	Is there a collision? (true/false)
RayCastingResult.hitNormal	Normal to the surface in the collision point (nil if no collision)
RayCastingResult.hitObject	The object the ray has collided with (can be nil)
RayCastingResult.hitPos	Position of the collision point (nil if no collision)

Type `nearby`

Field(s)

#COLLISION_TYPE nearby.COLLISION_TYPE

Collision types that are used in castRay.

Several types can be combined with '+'.

openmw.core#ObjectList nearby.activators: List of nearby activators.

openmw.core#ObjectList nearby.actors: List of nearby actors.

nearby.asyncCastRenderingRay(callback, from, to)

Asynchronously cast ray from one point to another and find the first visual intersection with anything in the scene.

Parameters

openmw.async#Callback callback : The callback to pass the result to (should accept a single argument openmw.nearby#RayCastingResult).
openmw.util#Vector3 from : Start point of the ray.
openmw.util#Vector3 to : End point of the ray.

nearby.castNavigationRay(from, to, options)

Finds a nearest to the ray target position starting from the initial position with resulting curve drawn on the navigation mesh surface.

Parameters

openmw.util#Vector3 from : Initial ray position.
openmw.util#Vector3 to : Target ray position.
#table options : An optional table with additional optional arguments. Can contain:
- agentBounds - a table identifying which navmesh to use, can contain:
  - shapeType - one of #COLLISION_SHAPE_TYPE values;
  - halfExtents - openmw.util#Vector3 defining agent bounds size;
- includeFlags - allowed areas for agent to move, a sum of #NAVIGATOR_FLAGS values (default: NAVIGATOR_FLAGS.Walk + NAVIGATOR_FLAGS.Swim + NAVIGATOR_FLAGS.OpenDoor + NAVIGATOR_FLAGS.UsePathgrid);

Return value

openmw.util#Vector3 or nil

Usages:

local position = nearby.castNavigationRay(from, to)

local position = nearby.castNavigationRay(from, to, {
    includeFlags = nearby.NAVIGATOR_FLAGS.Swim,
})

local position = nearby.castNavigationRay(from, to, {
    agentBounds = Actor.getPathfindingAgentBounds(self),
})

nearby.castRay(from, to, options)

Cast ray from one point to another and return the first collision.

Parameters

openmw.util#Vector3 from : Start point of the ray.
openmw.util#Vector3 to : End point of the ray.
#table options : An optional table with additional optional arguments. Can contain:
ignore - an object to ignore (specify here the source of the ray);
collisionType - object types to work with (see openmw.nearby#COLLISION_TYPE), several types can be combined with '+';
radius - the radius of the ray (zero by default). If not zero then castRay actually casts a sphere with given radius.
NOTE: currently ignore is not supported if radius>0.

Return value

#RayCastingResult:

Usages:

if nearby.castRay(pointA, pointB).hit then print('obstacle between A and B') end

local res = nearby.castRay(self.position, enemy.position, {ignore=self})
if res.hitObject and res.hitObject ~= enemy then obstacle = res.hitObject end

local res = nearby.castRay(self.position, targetPos, {
    collisionType=nearby.COLLISION_TYPE.HeightMap + nearby.COLLISION_TYPE.Water,
    radius = 10,
})

nearby.castRenderingRay(from, to)

Cast ray from one point to another and find the first visual intersection with anything in the scene.

As opposite to castRay can find an intersection with an object without collisions. In order to avoid threading issues can be used only in player scripts only in onFrame or in engine handlers for user input. In other cases use asyncCastRenderingRay instead.

Parameters

openmw.util#Vector3 from : Start point of the ray.
openmw.util#Vector3 to : End point of the ray.

Return value

#RayCastingResult:

openmw.core#ObjectList nearby.containers: List of nearby containers.

openmw.core#ObjectList nearby.doors: List of nearby doors.

nearby.findPath(source, destination, options)

Find path over navigation mesh from source to destination with given options.

Result is unstable since navigation mesh generation is asynchronous.

Parameters

openmw.util#Vector3 source : Initial path position.
openmw.util#Vector3 destination : Final path position.
#table options : An optional table with additional optional arguments. Can contain:
- agentBounds - a table identifying which navmesh to use, can contain:
  - shapeType - one of #COLLISION_SHAPE_TYPE values;
  - halfExtents - openmw.util#Vector3 defining agent bounds size;
- stepSize - a floating point number to define frequency of path points (default: 2 * math.max(halfExtents:x, halfExtents:y))
- includeFlags - allowed areas for agent to move, a sum of #NAVIGATOR_FLAGS values (default: NAVIGATOR_FLAGS.Walk + NAVIGATOR_FLAGS.Swim + NAVIGATOR_FLAGS.OpenDoor + NAVIGATOR_FLAGS.UsePathgrid);
- areaCosts - a table defining relative cost for each type of area, can contain:
  - ground - a floating point number >= 0, used in combination with NAVIGATOR_FLAGS.Walk (default: 1);
  - water - a floating point number >= 0, used in combination with NAVIGATOR_FLAGS.Swim (default: 1);
  - door - a floating point number >= 0, used in combination with NAVIGATOR_FLAGS.OpenDoor (default: 2);
  - pathgrid - a floating point number >= 0, used in combination with NAVIGATOR_FLAGS.UsePathgrid (default: 1);
- destinationTolerance - a floating point number representing maximum allowed distance between destination and a nearest point on the navigation mesh in addition to agent size (default: 1);

Return value

#FIND_PATH_STATUS, a collection of openmw.util#Vector3

Usages:

local status, path = nearby.findPath(source, destination)

local status, path = nearby.findPath(source, destination, {
    includeFlags = nearby.NAVIGATOR_FLAGS.Walk + nearby.NAVIGATOR_FLAGS.OpenDoor,
    areaCosts = {
        door = 1.5,
    },
})

local status, path = nearby.findPath(source, destination, {
    agentBounds = Actor.getPathfindingAgentBounds(self),
})

nearby.findRandomPointAroundCircle(position, maxRadius, options)

Returns random location on navigation mesh within the reach of specified location.

The location is not exactly constrained by the circle, but it limits the area.

Parameters

openmw.util#Vector3 position : Center of the search circle.
#number maxRadius : Approximate maximum search distance.
#table options : An optional table with additional optional arguments. Can contain:
- agentBounds - a table identifying which navmesh to use, can contain:
  - shapeType - one of #COLLISION_SHAPE_TYPE values;
  - halfExtents - openmw.util#Vector3 defining agent bounds size;
- includeFlags - allowed areas for agent to move, a sum of #NAVIGATOR_FLAGS values (default: NAVIGATOR_FLAGS.Walk + NAVIGATOR_FLAGS.Swim + NAVIGATOR_FLAGS.OpenDoor + NAVIGATOR_FLAGS.UsePathgrid);

Return value

openmw.util#Vector3 or nil

Usages:

local position = nearby.findRandomPointAroundCircle(position, maxRadius)

local position = nearby.findRandomPointAroundCircle(position, maxRadius, {
    includeFlags = nearby.NAVIGATOR_FLAGS.Walk,
})

local position = nearby.findRandomPointAroundCircle(position, maxRadius, {
    agentBounds = Actor.getPathfindingAgentBounds(self),
})

openmw.core#ObjectList nearby.items: Everything that can be picked up in the nearby.

Type `COLLISION_SHAPE_TYPE`

Field(s)

#number COLLISION_SHAPE_TYPE.Aabb: Axis-Aligned Bounding Box is used for NPC and symmetric Creatures;

#number COLLISION_SHAPE_TYPE.Cylinder: is used for NPC and symmetric Creatures.

#number COLLISION_SHAPE_TYPE.RotatingBox: is used for Creatures with big difference in width and height;

Type `COLLISION_TYPE`

Field(s)

#number COLLISION_TYPE.Actor

#number COLLISION_TYPE.AnyPhysical: : World+Door+Actor+HeightMap+Projectile+Water

#number COLLISION_TYPE.Camera: Objects that should collide only with camera

#number COLLISION_TYPE.Default: Used by default: World+Door+Actor+HeightMap

#number COLLISION_TYPE.Door

#number COLLISION_TYPE.HeightMap

#number COLLISION_TYPE.Projectile

#number COLLISION_TYPE.VisualOnly: Objects that were not intended to be part of the physics world

#number COLLISION_TYPE.Water

#number COLLISION_TYPE.World

Type `FIND_PATH_STATUS`

Field(s)

#number FIND_PATH_STATUS.EndPolygonNotFound: destination position is too far from available navigation mesh. The status may appear when navigation mesh is not fully generated or position is outside of covered area;

#number FIND_PATH_STATUS.FindPathOverPolygonsFailed: Path over navigation mesh from source to destination does not exist or navigation mesh is not fully generated to provide the path;

#number FIND_PATH_STATUS.InitNavMeshQueryFailed: Couldn't initialize required data due to bad input or bad navigation mesh data.

#number FIND_PATH_STATUS.MoveAlongSurfaceFailed: Found path couldn't be smoothed due to imperfect algorithm implementation or bad navigation mesh data;

#number FIND_PATH_STATUS.NavMeshNotFound: Provided agentBounds don't have corresponding navigation mesh. For interior cells it means an agent with such agentBounds is present on the scene. For exterior cells only default agentBounds is supported;

#number FIND_PATH_STATUS.PartialPath: Last path point is not a destination but a nearest position among found;

#number FIND_PATH_STATUS.StartPolygonNotFound: source position is too far from available navigation mesh. The status may appear when navigation mesh is not fully generated or position is outside of covered area;

#number FIND_PATH_STATUS.Success: Path is found;

Type `NAVIGATOR_FLAGS`

Field(s)

#number NAVIGATOR_FLAGS.OpenDoor: allow agent to open doors on the way;

#number NAVIGATOR_FLAGS.Swim: allow agent to swim on the water surface;

#number NAVIGATOR_FLAGS.UsePathgrid: allow agent to use predefined pathgrid imported from ESM files.

#number NAVIGATOR_FLAGS.Walk: allow agent to walk on the ground area;

Type `RayCastingResult`

Result of raycasing

Field(s)

#boolean RayCastingResult.hit: Is there a collision? (true/false)

openmw.util#Vector3 RayCastingResult.hitNormal: Normal to the surface in the collision point (nil if no collision)

openmw.core#GameObject RayCastingResult.hitObject: The object the ray has collided with (can be nil)

openmw.util#Vector3 RayCastingResult.hitPos: Position of the collision point (nil if no collision)