chore: initial commit

Packages/com.opsive.behaviordesigner/Runtime/Tasks/Conditionals/TargetBehaviorTreeConditional.cs

@@ -0,0 +1,71 @@
+#if GRAPH_DESIGNER
+/// ---------------------------------------------
+/// Behavior Designer
+/// Copyright (c) Opsive. All Rights Reserved.
+/// https://www.opsive.com
+/// ---------------------------------------------
+namespace Opsive.BehaviorDesigner.Runtime.Tasks.Conditionals
+{
+    using Opsive.GraphDesigner.Runtime.Variables;
+    using UnityEngine;
+
+    /// <summary>
+    /// A TaskObject Conditional task which implements the shared TargetGameObject/TreeUserID objects.
+    /// </summary>
+    public abstract class TargetBehaviorTreeConditional : Conditional
+    {
+        [Tooltip("The GameObject of the target behavior tree. If the value is null the current GameObject will be used.")]
+        [SerializeField] protected SharedVariable<GameObject> m_TargetGameObject;
+        [Tooltip("The index of the tree if there are multiple behavior trees on the same GameObject.")]
+        [SerializeField] protected SharedVariable<int> m_TreeIndex;
+
+        protected BehaviorTree m_ResolvedBehaviorTree;
+
+        /// <summary>
+        /// Initializes the task.
+        /// </summary>
+        public override void OnAwake()
+        {
+            m_TargetGameObject.OnValueChange += InitializeTarget;
+            m_TreeIndex.OnValueChange += InitializeTarget;
+
+            InitializeTarget();
+        }
+
+        /// <summary>
+        /// Initializes the target behavior tree.
+        /// </summary>
+        protected virtual void InitializeTarget()
+        {
+            if (m_TargetGameObject.Value == null) {
+                m_ResolvedBehaviorTree = m_BehaviorTree;
+            } else {
+                var behaviorTrees = m_TargetGameObject.Value.GetComponents<BehaviorTree>();
+                if (behaviorTrees.Length == 1) {
+                    m_ResolvedBehaviorTree = behaviorTrees[0];
+                } else if (behaviorTrees.Length > 1) {
+                    for (int i = 0; i < behaviorTrees.Length; ++i) {
+                        if (behaviorTrees[i].Index == m_TreeIndex.Value) {
+                            m_ResolvedBehaviorTree = behaviorTrees[i];
+                            break;
+                        }
+                    }
+                    // If the UserID can't be found then use the first behavior tree.
+                    if (m_ResolvedBehaviorTree == null) {
+                        m_ResolvedBehaviorTree = behaviorTrees[0];
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// The behavior tree has been destroyed.
+        /// </summary>
+        public override void OnDestroy()
+        {
+            m_TargetGameObject.OnValueChange -= InitializeTarget;
+            m_TreeIndex.OnValueChange -= InitializeTarget;
+        }
+    }
+}
+#endif