277 lines
13 KiB
C#
277 lines
13 KiB
C#
#if GRAPH_DESIGNER
|
|
/// ---------------------------------------------
|
|
/// Behavior Designer
|
|
/// Copyright (c) Opsive. All Rights Reserved.
|
|
/// https://www.opsive.com
|
|
/// ---------------------------------------------
|
|
namespace Opsive.BehaviorDesigner.Runtime.Tasks.Composites
|
|
{
|
|
using Opsive.BehaviorDesigner.Runtime.Components;
|
|
using Opsive.GraphDesigner.Runtime;
|
|
using Opsive.Shared.Utility;
|
|
using Unity.Entities;
|
|
using Unity.Burst;
|
|
using UnityEngine;
|
|
using System;
|
|
|
|
/// <summary>
|
|
/// A node representation of the selector task.
|
|
/// </summary>
|
|
[NodeIcon("4c3d0559a9ebc604e88b16e9a3fdfa05", "de3acf0e386a26246b8bc999b1ef8e32")]
|
|
[NodeDescription("The selector task is similar to an \"or\" operation. It will return success as soon as one of its child tasks return success. " +
|
|
"If a child task returns failure then it will sequentially run the next task. If no child task returns success then it will return failure.")]
|
|
public struct Selector : ILogicNode, IParentNode, ITaskComponentData, IComposite, IConditionalAbortParent, IInterruptResponder, ISavableTask, ICloneable
|
|
{
|
|
[Tooltip("The index of the node.")]
|
|
[SerializeField] ushort m_Index;
|
|
[Tooltip("The parent index of the node. ushort.MaxValue indicates no parent.")]
|
|
[SerializeField] ushort m_ParentIndex;
|
|
[Tooltip("The sibling index of the node. ushort.MaxValue indicates no sibling.")]
|
|
[SerializeField] ushort m_SiblingIndex;
|
|
[Tooltip("Specifies how the child conditional tasks should be reevaluated.")]
|
|
[SerializeField] ConditionalAbortType m_AbortType;
|
|
|
|
private ushort m_ComponentIndex;
|
|
|
|
public ushort Index { get => m_Index; set => m_Index = value; }
|
|
public ushort ParentIndex { get => m_ParentIndex; set => m_ParentIndex = value; }
|
|
public ushort SiblingIndex { get => m_SiblingIndex; set => m_SiblingIndex = value; }
|
|
public ushort RuntimeIndex { get; set; }
|
|
public ConditionalAbortType AbortType { get => m_AbortType; set => m_AbortType = value; }
|
|
|
|
public int MaxChildCount { get { return int.MaxValue; } }
|
|
|
|
public ComponentType Tag { get => typeof(SelectorTag); }
|
|
public Type SystemType { get => typeof(SelectorTaskSystem); }
|
|
public Type InterruptSystemType { get => typeof(SelectorInterruptSystem); }
|
|
|
|
/// <summary>
|
|
/// Adds the IBufferElementData to the entity.
|
|
/// </summary>
|
|
/// <param name="world">The world that the entity exists.</param>
|
|
/// <param name="entity">The entity that the IBufferElementData should be assigned to.</param>
|
|
public void AddBufferElement(World world, Entity entity)
|
|
{
|
|
DynamicBuffer<SelectorComponent> buffer;
|
|
if (world.EntityManager.HasBuffer<SelectorComponent>(entity)) {
|
|
buffer = world.EntityManager.GetBuffer<SelectorComponent>(entity);
|
|
} else {
|
|
buffer = world.EntityManager.AddBuffer<SelectorComponent>(entity);
|
|
}
|
|
buffer.Add(new SelectorComponent() {
|
|
Index = RuntimeIndex,
|
|
});
|
|
m_ComponentIndex = (ushort)(buffer.Length - 1);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Clears the IBufferElementData from the entity.
|
|
/// </summary>
|
|
/// <param name="world">The world that the entity exists.</param>
|
|
/// <param name="entity">The entity that the IBufferElementData should be cleared from.</param>
|
|
public void ClearBufferElement(World world, Entity entity)
|
|
{
|
|
DynamicBuffer<SelectorComponent> buffer;
|
|
if (world.EntityManager.HasBuffer<SelectorComponent>(entity)) {
|
|
buffer = world.EntityManager.GetBuffer<SelectorComponent>(entity);
|
|
buffer.Clear();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Specifies the type of reflection that should be used to save the task.
|
|
/// </summary>
|
|
/// <param name="index">The index of the sub-task. This is used for the task set allowing each contained task to have their own save type.</param>
|
|
public MemberVisibility GetSaveReflectionType(int index) { return MemberVisibility.None; }
|
|
|
|
/// <summary>
|
|
/// Returns the current task state.
|
|
/// </summary>
|
|
/// <param name="world">The DOTS world.</param>
|
|
/// <param name="entity">The DOTS entity.</param>
|
|
/// <returns>The current task state.</returns>
|
|
public object Save(World world, Entity entity)
|
|
{
|
|
var selectorComponents = world.EntityManager.GetBuffer<SelectorComponent>(entity);
|
|
var selectorComponent = selectorComponents[m_ComponentIndex];
|
|
|
|
// Save the active child.
|
|
return selectorComponent.ActiveChildIndex;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Loads the previous task state.
|
|
/// </summary>
|
|
/// <param name="saveData">The previous task state.</param>
|
|
/// <param name="world">The DOTS world.</param>
|
|
/// <param name="entity">The DOTS entity.</param>
|
|
public void Load(object saveData, World world, Entity entity)
|
|
{
|
|
var selectorComponents = world.EntityManager.GetBuffer<SelectorComponent>(entity);
|
|
var selectorComponent = selectorComponents[m_ComponentIndex];
|
|
|
|
// saveData is the active child.
|
|
selectorComponent.ActiveChildIndex = (ushort)saveData;
|
|
selectorComponents[m_ComponentIndex] = selectorComponent;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a deep clone of the component.
|
|
/// </summary>
|
|
/// <returns>A deep clone of the component.</returns>
|
|
public object Clone()
|
|
{
|
|
var clone = Activator.CreateInstance<Selector>();
|
|
clone.Index = Index;
|
|
clone.ParentIndex = ParentIndex;
|
|
clone.SiblingIndex = SiblingIndex;
|
|
clone.AbortType = AbortType;
|
|
return clone;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// The DOTS data structure for the Selector class.
|
|
/// </summary>
|
|
public struct SelectorComponent : IBufferElementData
|
|
{
|
|
[Tooltip("The index of the node.")]
|
|
public ushort Index;
|
|
[Tooltip("The index of the child that is currently active.")]
|
|
public ushort ActiveChildIndex;
|
|
}
|
|
|
|
/// <summary>
|
|
/// A DOTS tag indicating when a Selector node is active.
|
|
/// </summary>
|
|
public struct SelectorTag : IComponentData, IEnableableComponent { }
|
|
|
|
/// <summary>
|
|
/// Runs the Selector logic.
|
|
/// </summary>
|
|
[DisableAutoCreation]
|
|
public partial struct SelectorTaskSystem : ISystem
|
|
{
|
|
/// <summary>
|
|
/// Creates the job.
|
|
/// </summary>
|
|
/// <param name="state">The current state of the system.</param>
|
|
[BurstCompile]
|
|
private void OnUpdate(ref SystemState state)
|
|
{
|
|
var query = SystemAPI.QueryBuilder().WithAllRW<BranchComponent>().WithAllRW<TaskComponent>().WithAllRW<SelectorComponent>().WithAll<SelectorTag, EvaluationComponent>().Build();
|
|
state.Dependency = new SelectorJob().ScheduleParallel(query, state.Dependency);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Job which executes the task logic.
|
|
/// </summary>
|
|
[BurstCompile]
|
|
private partial struct SelectorJob : IJobEntity
|
|
{
|
|
/// <summary>
|
|
/// Executes the selector logic.
|
|
/// </summary>
|
|
/// <param name="branchComponents">An array of BranchComponents.</param>
|
|
/// <param name="taskComponents">An array of TaskComponents.</param>
|
|
/// <param name="selectorComponents">An array of SelectorComponents.</param>
|
|
[BurstCompile]
|
|
public void Execute(ref DynamicBuffer<BranchComponent> branchComponents, ref DynamicBuffer<TaskComponent> taskComponents, ref DynamicBuffer<SelectorComponent> selectorComponents)
|
|
{
|
|
for (int i = 0; i < selectorComponents.Length; ++i) {
|
|
var selectorComponent = selectorComponents[i];
|
|
var taskComponent = taskComponents[selectorComponent.Index];
|
|
var branchComponent = branchComponents[taskComponent.BranchIndex];
|
|
|
|
// Do not continue if there will be an interrupt.
|
|
if (branchComponent.InterruptType != InterruptType.None) {
|
|
continue;
|
|
}
|
|
|
|
if (taskComponent.Status == TaskStatus.Queued) {
|
|
taskComponent.Status = TaskStatus.Running;
|
|
taskComponents[taskComponent.Index] = taskComponent;
|
|
|
|
selectorComponent.ActiveChildIndex = (ushort)(taskComponent.Index + 1);
|
|
selectorComponents[i] = selectorComponent;
|
|
|
|
branchComponent.NextIndex = selectorComponent.ActiveChildIndex;
|
|
branchComponents[taskComponent.BranchIndex] = branchComponent;
|
|
|
|
// Start the child.
|
|
var nextChildTaskComponent = taskComponents[branchComponent.NextIndex];
|
|
nextChildTaskComponent.Status = TaskStatus.Queued;
|
|
taskComponents[branchComponent.NextIndex] = nextChildTaskComponent;
|
|
} else if (taskComponent.Status != TaskStatus.Running) {
|
|
continue;
|
|
}
|
|
|
|
// The selector task is currently active. Check the first child.
|
|
var childTaskComponent = taskComponents[selectorComponent.ActiveChildIndex];
|
|
if (childTaskComponent.Status == TaskStatus.Queued || childTaskComponent.Status == TaskStatus.Running) {
|
|
// The child should keep running.
|
|
continue;
|
|
}
|
|
|
|
if (childTaskComponent.SiblingIndex == ushort.MaxValue || childTaskComponent.Status == TaskStatus.Success) {
|
|
// There are no more children or the child succeeded. The selector task should end. A task status of inactive indicates the last task was disabled. Return failure.
|
|
taskComponent.Status = childTaskComponent.Status != TaskStatus.Inactive ? childTaskComponent.Status : TaskStatus.Failure;
|
|
selectorComponent.ActiveChildIndex = (ushort)(selectorComponent.Index + 1);
|
|
taskComponents[selectorComponent.Index] = taskComponent;
|
|
|
|
branchComponent.NextIndex = taskComponent.ParentIndex;
|
|
branchComponents[taskComponent.BranchIndex] = branchComponent;
|
|
} else {
|
|
// The previous task is no longer running.
|
|
var siblingTaskComponent = taskComponents[childTaskComponent.SiblingIndex];
|
|
|
|
siblingTaskComponent.Status = TaskStatus.Queued;
|
|
taskComponents[childTaskComponent.SiblingIndex] = siblingTaskComponent;
|
|
// The current index is now the sibling index.
|
|
selectorComponent.ActiveChildIndex = childTaskComponent.SiblingIndex;
|
|
|
|
branchComponent.NextIndex = selectorComponent.ActiveChildIndex;
|
|
branchComponents[taskComponent.BranchIndex] = branchComponent;
|
|
}
|
|
selectorComponents[i] = selectorComponent;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// An interrupt has occurred. Ensure the task state is correct after the interruption.
|
|
/// </summary>
|
|
[DisableAutoCreation]
|
|
public partial struct SelectorInterruptSystem : ISystem
|
|
{
|
|
/// <summary>
|
|
/// Runs the logic after an interruption.
|
|
/// </summary>
|
|
/// <param name="state">The current state of the system.</param>
|
|
[BurstCompile]
|
|
private void OnUpdate(ref SystemState state)
|
|
{
|
|
foreach (var (taskComponents, selectorComponents) in
|
|
SystemAPI.Query<DynamicBuffer<TaskComponent>, DynamicBuffer<SelectorComponent>>().WithAll<InterruptTag>()) {
|
|
for (int i = 0; i < selectorComponents.Length; ++i) {
|
|
var selectorComponent = selectorComponents[i];
|
|
// The active child will have a non-running status if it has been interrupted.
|
|
if (taskComponents[selectorComponent.ActiveChildIndex].Status != TaskStatus.Running) {
|
|
var childIndex = (ushort)(selectorComponent.Index + 1);
|
|
// Find the currently active task.
|
|
while (childIndex != ushort.MaxValue && taskComponents[childIndex].Status != TaskStatus.Running) {
|
|
childIndex = taskComponents[childIndex].SiblingIndex;
|
|
}
|
|
if (childIndex != ushort.MaxValue) {
|
|
selectorComponent.ActiveChildIndex = childIndex;
|
|
}
|
|
var selectorBuffer = selectorComponents;
|
|
selectorBuffer[i] = selectorComponent;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif |