Initial Commit

Assets/Oculus/Interaction/Editor/Surfaces/CylinderSurfaceEditor.cs

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+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * All rights reserved.
+ *
+ * Licensed under the Oculus SDK License Agreement (the "License");
+ * you may not use the Oculus SDK except in compliance with the License,
+ * which is provided at the time of installation or download, or which
+ * otherwise accompanies this software in either electronic or hard copy form.
+ *
+ * You may obtain a copy of the License at
+ *
+ * https://developer.oculus.com/licenses/oculussdk/
+ *
+ * Unless required by applicable law or agreed to in writing, the Oculus SDK
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using UnityEngine;
+using UnityEditor;
+using Oculus.Interaction.Surfaces;
+
+namespace Oculus.Interaction.Editor
+{
+    [CustomEditor(typeof(CylinderSurface))]
+    public class CylinderSurfaceEditor : UnityEditor.Editor
+    {
+        private const int NUM_SEGMENTS = 30;
+
+        private static readonly Color ValidColor = Color.green * 0.8f;
+
+        private static readonly Color InvalidColor = Color.red * 0.8f;
+
+        public void OnSceneGUI()
+        {
+            CylinderSurface cylinder = target as CylinderSurface;
+
+            if (cylinder.Cylinder != null)
+            {
+                Draw(cylinder);
+            }
+        }
+
+        public static void Draw(CylinderSurface cylinderSurface)
+        {
+            Color prevColor = Handles.color;
+            Handles.color = cylinderSurface.IsValid ? ValidColor : InvalidColor;
+
+            float gizmoHeight = cylinderSurface.Height;
+            float camYOffset = 0;
+            bool infiniteHeight = cylinderSurface.Height <= 0;
+
+            if (infiniteHeight && SceneView.lastActiveSceneView?.camera != null)
+            {
+                gizmoHeight = 1000f;
+                Vector3 sceneCamPos = SceneView.lastActiveSceneView.camera.transform.position;
+                camYOffset = cylinderSurface.Cylinder.transform.InverseTransformPoint(sceneCamPos).y;
+            }
+
+            for (int i = 0; i < 2; ++i)
+            {
+                bool isTop = i == 1;
+                float y = isTop ? gizmoHeight / 2 : -gizmoHeight / 2;
+                int numSegments = (int)(NUM_SEGMENTS * Mathf.Max(cylinderSurface.Radius / 2, 1));
+                Vector3 prevSegmentWorld = Vector3.zero;
+
+                for (int seg = 0; seg <= numSegments; ++seg)
+                {
+                    float ratio = (float)seg / numSegments * Mathf.PI * 2;
+                    float x = Mathf.Cos(ratio) * cylinderSurface.Radius;
+                    float z = Mathf.Sin(ratio) * cylinderSurface.Radius;
+                    Vector3 curSegmentLocal = new Vector3(x, y + camYOffset, z);
+                    Vector3 curSegmentWorld = cylinderSurface.Cylinder.transform.TransformPoint(curSegmentLocal);
+
+                    if (isTop) // Draw connecting lines from top circle
+                    {
+                        Vector3 bottomVert = new Vector3(curSegmentLocal.x,
+                                                         curSegmentLocal.y - gizmoHeight,
+                                                         curSegmentLocal.z);
+                        bottomVert = cylinderSurface.Cylinder.transform.TransformPoint(bottomVert);
+                        Handles.DrawLine(curSegmentWorld, bottomVert);
+                    }
+
+                    if (seg > 0 && !infiniteHeight)
+                    {
+                        Handles.DrawLine(curSegmentWorld, prevSegmentWorld);
+                    }
+
+                    prevSegmentWorld = curSegmentWorld;
+                }
+            }
+
+            Handles.color = prevColor;
+        }
+    }
+}