Merge pull request #102 from ashblue/all-contributors/add-darkgnostic

docs: add darkgnostic as a contributor for bug

Author: ashblue

CHANGELOG.md

@@ -0,0 +1 @@
+Placeholder for meta files

CHANGELOG.md.meta

@@ -0,0 +1,21 @@
+using UnityEditor;
+using UnityEngine;
+
+namespace CleverCrow.Fluid.BTs.Trees.Editors {
+    [CustomPropertyDrawer(typeof(BehaviorTree))]
+    public class BehaviorTreeDrawer : PropertyDrawer {
+        public override void OnGUI (Rect position, SerializedProperty property, GUIContent label) {
+            EditorGUI.BeginProperty(position, label, property);
+            
+            position = EditorGUI.PrefixLabel(position, GUIUtility.GetControlID(FocusType.Passive), label);
+            GUI.enabled = Application.isPlaying;
+            if (GUI.Button(position, "View Tree")) {
+                var tree = fieldInfo.GetValue(property.serializedObject.targetObject) as IBehaviorTree;
+                BehaviorTreeWindow.ShowTree(tree, tree.Name ?? property.displayName);
+            }
+            GUI.enabled = true;
+            
+            EditorGUI.EndProperty();
+        }
+    }
+}

Editor.meta

@@ -0,0 +1,41 @@
+using UnityEditor;
+using UnityEngine;
+
+namespace CleverCrow.Fluid.BTs.Trees.Editors {
+    public class BehaviorTreeWindow : EditorWindow {
+        private BehaviorTreePrinter _printer;
+        private string _name;
+
+        public static void ShowTree (IBehaviorTree tree, string name) {
+            var window = GetWindow<BehaviorTreeWindow>(false);
+            window.titleContent = new GUIContent($"Behavior Tree: {name}");
+            window.SetTree(tree, name);
+        }
+
+        private void SetTree (IBehaviorTree tree, string name) {
+            _printer?.Unbind();
+            _printer = new BehaviorTreePrinter(tree, position.size);
+            _name = name;
+        }
+
+        private void OnGUI () {
+            if (!Application.isPlaying) {
+                ClearView();
+            }
+            
+            GUILayout.Label($"Behavior Tree: {_name}", EditorStyles.boldLabel);
+            _printer?.Print(position.size);
+        }
+
+        private void ClearView () {
+            _name = null;
+            _printer = null;
+        }
+
+        private void Update () {
+            if (Application.isPlaying) {
+                Repaint();
+            }
+        }
+    }
+}

Editor/BehaviorTree.meta

@@ -0,0 +1,51 @@
+using UnityEngine;
+
+namespace CleverCrow.Fluid.BTs.Trees.Editors {
+    public class BehaviorTreePrinter {
+        private const float SCROLL_PADDING = 40;
+
+        private readonly VisualTask _root;
+        private readonly Rect _containerSize;
+
+        private Vector2 _scrollPosition;
+        
+        public static StatusIcons StatusIcons { get; private set; }
+        public static GuiStyleCollection SharedStyles { get; private set; }
+
+
+        public BehaviorTreePrinter (IBehaviorTree tree, Vector2 windowSize) {
+            StatusIcons = new StatusIcons();
+            SharedStyles = new GuiStyleCollection();
+            
+            var container = new GraphContainerVertical();
+            container.SetGlobalPosition(SCROLL_PADDING, SCROLL_PADDING);
+            _root = new VisualTask(tree.Root, container);
+            container.CenterAlignChildren();
+            
+            _containerSize = new Rect(0, 0, 
+                container.Width + SCROLL_PADDING * 2, 
+                container.Height + SCROLL_PADDING * 2);
+
+            CenterScrollView(windowSize, container);
+        }
+
+        private void CenterScrollView (Vector2 windowSize, GraphContainerVertical container) {
+            var scrollOverflow = container.Width + SCROLL_PADDING * 2 - windowSize.x;
+            var centerViewPosition = scrollOverflow / 2;
+            _scrollPosition.x = centerViewPosition;
+        }
+
+        public void Print (Vector2 windowSize) {
+            _scrollPosition = GUI.BeginScrollView(
+                new Rect(0, 0, windowSize.x, windowSize.y), 
+                _scrollPosition, 
+                _containerSize);
+            _root.Print();
+            GUI.EndScrollView();
+        }
+
+        public void Unbind () {
+            _root.RecursiveTaskUnbind();
+        }
+    }
+}