Merge pull request #1169 from ousttrue/feature10/add_expression_slider

play mode の expression preview

Assets/VRM10/Editor/EditorTool/VRM10ExpressionEditorTool.cs

@@ -0,0 +1,122 @@
+using System;
+using System.Collections.Generic;
+using UnityEditor;
+using UnityEditor.EditorTools;
+using UnityEngine;
+
+namespace UniVRM10
+{
+    [EditorTool("vrm-1.0/Expression", typeof(UniVRM10.VRM10Controller))]
+    class VRM10ExpressionEditorTool : EditorTool
+    {
+        static GUIContent s_cachedIcon;
+        public override GUIContent toolbarIcon
+        {
+            get
+            {
+                if (s_cachedIcon == null)
+                {
+                    s_cachedIcon = EditorGUIUtility.IconContent("d_Audio Mixer@2x", "|vrm-1.0 Expression");
+                }
+                return s_cachedIcon;
+            }
+        }
+
+        void OnEnable()
+        {
+            EditorTools.activeToolChanged += ActiveToolDidChange;
+        }
+
+        void OnDisable()
+        {
+            EditorTools.activeToolChanged -= ActiveToolDidChange;
+        }
+
+        void ActiveToolDidChange()
+        {
+            if (!EditorTools.IsActiveTool(this))
+            {
+                return;
+            }
+        }
+
+        public override void OnToolGUI(EditorWindow window)
+        {
+            var root = Selection.activeTransform.GetComponent<VRM10Controller>();
+            if (root == null)
+            {
+                return;
+            }
+
+            Handles.BeginGUI();
+            if (Application.isPlaying)
+            {
+                ExpressionPreviewInPlay(root?.Vrm?.Expression);
+            }
+            else
+            {
+                EditorGUILayout.HelpBox("expression preview in play mode", MessageType.Warning);
+            }
+            Handles.EndGUI();
+        }
+
+        void ExpressionPreviewInPlay(VRM10ObjectExpression expression)
+        {
+            if (expression == null)
+            {
+                EditorGUILayout.HelpBox("no expression settings", MessageType.Warning);
+                return;
+            }
+
+            EditorGUILayout.BeginHorizontal();
+            {
+                GUILayout.FlexibleSpace();
+
+                // 右よせ
+                EditorGUILayout.BeginVertical();
+                {
+                    GUILayout.FlexibleSpace();
+
+                    m_map.Clear();
+                    foreach (var kv in expression.GetWeights())
+                    {
+                        var key = kv.Key;
+                        if (kv.Key.Preset != ExpressionPreset.custom)
+                        {
+                            var value = ExpressionPresetSlider(expression, kv.Key.Preset, kv.Value);
+                            m_map[key] = value;
+                        }
+                    }
+                    GUILayout.FlexibleSpace();
+
+                    expression.SetWeights(m_map);
+                }
+                EditorGUILayout.EndVertical();
+            }
+            EditorGUILayout.EndHorizontal();
+        }
+
+        Dictionary<ExpressionKey, float> m_map = new Dictionary<ExpressionKey, float>();
+        static GUIStyle s_style;
+        static GUIStyle Style
+        {
+            get
+            {
+                if (s_style == null)
+                {
+                    s_style = GUI.skin.GetStyle("box");
+                }
+                return s_style;
+            }
+        }
+
+        float ExpressionPresetSlider(VRM10ObjectExpression expression, ExpressionPreset preset, float value)
+        {
+            EditorGUILayout.BeginHorizontal(Style);
+            EditorGUILayout.LabelField(preset.ToString());
+            value = EditorGUILayout.Slider(value, 0, 1.0f);
+            EditorGUILayout.EndHorizontal();
+            return value;
+        }
+    }
+}