caa30e12

Guide
- Agents and actions
- Authoring a behaviour tree
- Behaviour trees
- The blackboard
- The AI debugger
- Environment queries
- GOAP
- Perception
- Sensors
- Utility
- Nodes over the world
- Move sets
- Pose constraints
- The variation harness
- Getting content into a running game
- Fuzzing a format that has a grammar
- Symbols
- Component defaults
- Components
- Entity queries
- Booleans and handoff
- The editing pipeline
- Editor scripts
- Element selection
- Face materials
- Foliage mode
- The frame panel
- Icons
- The editor shell
- Inspectors in markup
- Editable meshes in a scene
- Editor modes
- Building to a number
- Scene menus
- The shape tool
- Snapping
- Sub-object picking
- Sculpt and paint mode
- Water mode
- Writing an editor plugin
- Block-out shapes
- Booting an application
- Floating things on water
- Character movement
- Editable meshes
- Growing a forest
- Foliage instances
- Grass
- Mesh booleans
- Mesh operations
- Mesh surfaces
- Networked players
- Players and possession
- Splines
- Terrain brushes
- The terrain heightfield
- Painting a terrain
- Sculpting a heightfield
- Where the water surface is
- Saving and restoring a world
- Leashing and spawn tables
- Attributes and the modifier algebra
- Chat channels, routing and moderation
- Collections, achievements and transmog
- Abilities and damage
- Definitions and the content walk
- Dynamic events and world bosses
- Currencies, vendors, trade, mail and the auction
- Effects
- Gameplay events
- Player housing
- Dungeons, raids and lockouts
- Interactables, gathering and crafting
- Inventory and the container algebra
- Items
- Authoring a loot table
- Loot tables
- Gameplay modules
- Mounts and vehicles
- Levels, talents and reputation
- Arenas, battlegrounds and objectives
- The quest and event-chain editor
- Quests, stages and objectives
- Gameplay randomness
- Requirements
- Weapons and hit claims
- Parties, guilds, friends and presence
- Gameplay tags
- Maps, discovery and travel
- Admission, health and the control plane
- Durable state and the ledger
- The gameplay bridge
- Matchmaking, queues and ratings
- Placing players
- Placing realms
- Shards, keys and specs
- The cluster
- The live verbs, at three in the morning
- The service plane
- Transfer tickets
- Transferring players
- Upgrading a fleet
- Writing a realm
- Choosing a frame
- Drawing foliage
- The ambient split, and the nodes that fill it
- Drawing grass
- Impostors
- Culling and streaming instances
- Turning on dynamic global illumination
- The look profile
- Meshes and materials, type by type
- Drawing particles
- Lighting a scene in lux and lumens
- Making a room look different
- The post-processing node kinds
- Tracing rays against the scene's own triangles
- A pass that reads the frame so far
- Render quality presets
- Making everything cast a shadow
- The Standard Frame
- Drawing a terrain
- Streaming texture mip tails
- Fog a shadow can fall through
By kind
- Components48
- Systems55
- Controls169
- Shaders63
- Graph nodes64
- Importers28
- Annotations45
- Diagnostics8
- Log events69
All namespaces315
Releases1

ObserverAborts

enum

Core/Vixen.Ai/BehaviorTrees/BehaviorEnums.cs:80

csharp

public enum ObserverAborts

What a decorator may interrupt when the data it reads changes.

Read the guide page for this →

Remarks

Unreal's four, which Unity's Behavior package independently arrived at. The test is two integer comparisons against the pre-order index range of the decorated node, which is the whole reason a template is laid out depth-first — doc 37 § D6.

⚠ The scope is Unity's, not Unreal's. An observer affects only the siblings under its own parent composite, and that composite restarts from child zero. Unreal's abort reaches further up the tree, which is more powerful and is the subject of most of the confusion in its forums — a decorator two levels above the running task aborting a branch it does not visibly contain. A rule the editor can draw is a rule an author can predict.

Fields and properties (4)

None
Gates entry and nothing else. The default, and the cheapest.
Self
If it starts failing while its own subtree is running, abort what is running.
LowerPriority
If it starts passing while something after its subtree is running, take over.
Both
Both tests.

Used by (31)

AbortsNothingDecoratorVixen.Ai.Tests
AuthorableNodeTestsVixen.Ai.Tests
BehaviorDecoratorVixen.Ai
BehaviorDecoratorSlotVixen.Ai
BehaviorNodeSchemaVixen.Ai
BehaviorTreeAbortOrderingTestsVixen.Ai.Tests
BehaviorTreeAbortTestsVixen.Ai.Tests
BehaviorTreeCompilerTestsVixen.Ai.Tests
BehaviorTreeDecoratorTestsVixen.Ai.Tests
BehaviorTreeDeterminismTestsVixen.Ai.Tests
BehaviorTreeInstanceVixen.Ai
BehaviorTreeResolverVixen.Ai
BehaviorTreeServiceTestsVixen.Ai.Tests
BlackboardDecoratorVixen.Ai
BuildStateVixen.Ai
CompareEntriesDecoratorVixen.Ai
CompileStateVixen.Ai
CompositeDecoratorVixen.Ai
ConeDecoratorVixen.Ai
DoesPathExistDecoratorVixen.Ai.Nodes
IsAtLocationDecoratorVixen.Ai
PatrolChaseGiveUpTestsVixen.Ai.Nodes.Tests
PerceivedTargetDecoratorVixen.Ai.Perception
PerceptionNodeTestsVixen.Ai.Perception.Tests
PerceptionNodesVixen.Ai.Perception
VillageVixen.Ai.Nodes.Tests
WorldNodesVixen.Ai.Nodes
BehaviorTreeDocumentTestsVixen.Editor.AssetEditors.Tests
BehaviorTreeModelVixen.Editor.Ai
BehaviorTreeModelTestsVixen.Editor.Ai.Tests
LiveAgentVixen.Editor.AssetEditors.Tests