Example #1
0
        public static IvyGraph MergeVisibleIvyGraphs(IvyBehavior ivyBehavior, IvyProfile ivyProfile, bool rebuildMesh = true)
        {
            var graphsToMerge = ivyBehavior.ivyGraphs.Where(graph => graph.isVisible).ToList();

            if (graphsToMerge == null || graphsToMerge.Count == 0)
            {
                return(null);
            }

            var mainGraph = graphsToMerge[0];

            for (int i = 0; i < ivyBehavior.ivyGraphs.Count; i++)
            {
                var graph = ivyBehavior.ivyGraphs[i];
                if (!graph.isVisible || graph == mainGraph)
                {
                    continue;
                }

                // convert merged graph's localPos to mainGraph's localPos
                foreach (var root in graph.roots)
                {
                    foreach (var node in root.nodes)
                    {
                        node.p += graph.seedPos - mainGraph.seedPos;
                    }
                }
                mainGraph.roots.AddRange(graph.roots);

                if (graph.rootGO != null)
                {
                    DestroyObject(graph.rootGO);
                }
                TryToDestroyMeshes(ivyBehavior, graph);

                ivyBehavior.ivyGraphs.Remove(graph);
                i--;
            }

            if (rebuildMesh)
            {
                Undo.RegisterFullObjectHierarchyUndo(mainGraph.rootGO, "Hedera > Merge Visible");
                IvyMesh.GenerateMesh(mainGraph, ivyProfile, ivyProfile.useLightmapping, true);
                AssetDatabase.SaveAssets();
            }

            return(mainGraph);
        }
Example #2
0
        void OnEditorUpdate()
        {
            if (EditorApplication.timeSinceStartup > lastRefreshTime + refreshInterval)
            {
                lastRefreshTime = EditorApplication.timeSinceStartup;
                CacheTerrainColliderStuff();
                adhesionMeshCache.Clear();

                grewThisFrame = false;
                foreach (var ivyB in ivyBehaviors)
                {
                    if (ivyB == null || ivyB.profileAsset == null)
                    {
                        continue;
                    }
                    foreach (var ivy in ivyB.ivyGraphs)
                    {
                        if (ivy.isGrowing)
                        {
                            GrowIvyStep(ivy, ivyB.profileAsset.ivyProfile);
                            if (ivy.generateMeshDuringGrowth)
                            {
                                IvyMesh.GenerateMesh(ivy, ivyB.profileAsset.ivyProfile);
                            }
                            grewThisFrame    = true;
                            needToSaveAssets = true;
                        }
                        if (!ivy.isGrowing && ivy.generateMeshDuringGrowth && ivyB.profileAsset.ivyProfile.useLightmapping && ivy.dirtyUV2s)
                        {
                            IvyMesh.GenerateMesh(ivy, ivyB.profileAsset.ivyProfile, true);
                            grewThisFrame    = true;
                            needToSaveAssets = true;
                        }
                    }
                }

                // wait for a lull, then save changes to assets
                if (!grewThisFrame && needToSaveAssets)
                {
                    needToSaveAssets = false;
                    AssetDatabase.SaveAssets();
                }
            }
        }
Example #3
0
        public static void ForceIvyGrowth(IvyGraph graph, IvyProfile ivyProfile, Vector3 newPos, Vector3 newNormal)
        {
            newPos -= graph.seedPos;             // convert to local space

            // find the nearest root end node, and continue off of it
            // var closestRoot = graph.roots.OrderBy( root => Vector3.Distance( newPos, root.nodes.Last().localPos ) ).FirstOrDefault();
            // if ( closestRoot == null ) {
            //  return;
            // }
            var closestRoot = graph.roots[0];

            var lastNode   = closestRoot.nodes[closestRoot.nodes.Count - 1];
            var growVector = newPos - lastNode.p;

            var newNode = new IvyNode();

            newNode.p = newPos;
            newNode.g = (0.5f * lastNode.g + 0.5f * growVector.normalized).normalized;
            //newNode.adhesionVector = ComputeAdhesion( newPos, ivyProfile );
            //if ( newNode.adhesionVector.sqrMagnitude < 0.01f ) {
            newNode.c = -newNormal;
            //}
            newNode.s  = lastNode.s + growVector.magnitude;
            newNode.cS = lastNode.cS + growVector.magnitude;
            newNode.fS = 0f;
            newNode.cl = true;

            closestRoot.nodes.Add(newNode);
            closestRoot.useCachedBranchData = false;
            closestRoot.useCachedLeafData   = false;
            // TryGrowIvyBranch( graph, ivyProfile, closestRoot, newNode );

            var cache = IvyRoot.GetMeshCacheFor(closestRoot);

            cache.debugLineSegmentsList.Add(lastNode.p + graph.seedPos);
            cache.debugLineSegmentsList.Add(newPos + graph.seedPos);
            cache.debugLineSegmentsArray = cache.debugLineSegmentsList.ToArray();

            if (graph.generateMeshDuringGrowth)
            {
                IvyMesh.GenerateMesh(graph, ivyProfile);
            }
        }
Example #4
0
        public static IvyGraph SeedNewIvyGraph(IvyProfile ivyProfile, Vector3 seedPos, Vector3 primaryGrowDir, Vector3 adhesionVector, Transform root, bool generateMeshPreview = false)
        {
            var graph = new IvyGraph();

            graph.roots.Clear();
            graph.seedPos    = seedPos;
            graph.seedNormal = adhesionVector;
            graph.generateMeshDuringGrowth = generateMeshPreview;
            graph.rootBehavior             = root;

            IvyNode tmpNode = new IvyNode();

            tmpNode.p  = Vector3.zero;    //seedPos;
            tmpNode.g  = primaryGrowDir;
            tmpNode.c  = adhesionVector;
            tmpNode.s  = 0.0f;
            tmpNode.cS = 0f;
            tmpNode.fS = 0.0f;
            tmpNode.cl = true;

            IvyRoot tmpRoot = new IvyRoot();

            tmpRoot.nodes.Add(tmpNode);
            tmpRoot.isAlive = true;
            graph.isGrowing = true;
            tmpRoot.parents = 0;
            graph.roots.Add(tmpRoot);

            if (graph.generateMeshDuringGrowth)
            {
                IvyMesh.GenerateMesh(graph, ivyProfile);
                Undo.RegisterCreatedObjectUndo(graph.rootGO, "Hedera > Paint Ivy");
            }

            return(graph);
        }
Example #5
0
        //called whenever the inspector gui gets rendered
        public override void OnInspectorGUI()
        {
            EditorGUILayout.Space();
            if (ivyBehavior == null)
            {
                ivyBehavior = (IvyBehavior)target;
            }
            wasPartOfPrefab = IvyCore.IsPartOfPrefab(ivyBehavior.gameObject);

            bool isInARealScene = !string.IsNullOrEmpty(ivyBehavior.gameObject.scene.path) && ivyBehavior.gameObject.activeInHierarchy;

            if (isInARealScene)
            {
                lastDataAsset = IvyCore.GetDataAsset(ivyBehavior.gameObject);
            }

            EditorGUILayout.BeginVertical(EditorStyles.helpBox);
            EditorGUI.BeginChangeCheck();
            ivyBehavior.profileAsset = EditorGUILayout.ObjectField(ivyBehavior.profileAsset, typeof(IvyProfileAsset), false) as IvyProfileAsset;
            if (EditorGUI.EndChangeCheck() || (ivyProfileEditor == null && ivyBehavior.profileAsset != null))
            {
                ivyProfileEditor = Editor.CreateEditor(ivyBehavior.profileAsset);
                ((IvyProfileEditor)ivyProfileEditor).viewedFromMonobehavior = true;
            }

            // destroy old editor / cleanup
            if (ivyBehavior.profileAsset == null && ivyProfileEditor != null)
            {
                DestroyImmediate(ivyProfileEditor);
            }

            if (ivyBehavior.profileAsset == null || ivyProfileEditor == null)
            {
                EditorGUILayout.HelpBox("Please assign an Ivy Profile Asset.", MessageType.Warning);
                if (GUILayout.Button("Create new Ivy Profile Asset..."))
                {
                    var newAsset = IvyCore.CreateNewAsset("");
                    if (newAsset != null)
                    {
                        ivyBehavior.profileAsset       = newAsset;
                        ivyBehavior.showProfileFoldout = true;
                        Selection.activeGameObject     = ivyBehavior.gameObject;
                    }
                }
                EditorGUILayout.EndVertical();
                return;
            }

            var ivyProfile = ivyBehavior.profileAsset.ivyProfile;

            if (!IvyCore.ivyBehaviors.Contains(ivyBehavior))
            {
                IvyCore.ivyBehaviors.Add(ivyBehavior);
            }

            GUIContent content = null;

            EditorGUI.indentLevel++;
            ivyBehavior.showProfileFoldout = EditorGUILayout.Foldout(ivyBehavior.showProfileFoldout, "Ivy Profile Settings", true);
            EditorGUI.indentLevel--;
            if (EditorGUILayout.BeginFadeGroup(ivyBehavior.showProfileFoldout ? 1 : 0))
            {
                ivyProfileEditor.OnInspectorGUI();
            }
            EditorGUILayout.EndFadeGroup();
            EditorGUILayout.EndVertical();

            DrawUILine();
            GUILayout.Label("Ivy Painter", EditorStyles.boldLabel);

            if (!isInARealScene)
            {
                EditorGUILayout.HelpBox("Painting / mesh generation only works in saved scenes on active game objects.\n- Save the scene?\n- Put this game object in a saved scene?\n- Make sure it is active?", MessageType.Error);
                GUI.enabled = false;
            }

            // if Gizmos aren't drawn in scene view, then we can't paint anything since OnSceneGUI() is no longer called... but this warning is only supported in Unity 2019.1 or newer
            // see issue: https://github.com/radiatoryang/hedera/issues/6
            #if UNITY_2019_1_OR_NEWER
            if (SceneView.lastActiveSceneView.drawGizmos == false)
            {
                GUI.enabled = false;
                EditorGUILayout.HelpBox("Gizmos are disabled in the Scene View, which breaks OnSceneGUI(), so ivy painting is disabled.", MessageType.Error);
            }
            #endif

            // plant root creation button
            var oldColor = GUI.color;
            GUI.color = isPlantingModeActive ? Color.yellow : Color.Lerp(Color.yellow, oldColor, 0.69f);
            content   = new GUIContent(!isPlantingModeActive ? "  Start Painting Ivy": "  Stop Painting Ivy", iconPaint, "while painting, left-click and drag in the Scene view on any collider");
            if (GUILayout.Button(content, GUILayout.Height(20)))
            {
                isPlantingModeActive = !isPlantingModeActive;
            }
            GUI.color = oldColor;

            content = new GUIContent(" Enable Growth Sim AI", "If disabled, then you can just paint ivy without simulation or AI, which is useful when you want small strokes or full control.");
            ivyBehavior.enableGrowthSim = EditorGUILayout.ToggleLeft(content, ivyBehavior.enableGrowthSim);

            content = new GUIContent(" Make Mesh During Painting / Growth", "Generate 3D ivy mesh during painting and growth. Very cool, but very processing intensive. If your computer gets very slow while painting, then disable this.");
            ivyBehavior.generateMeshDuringGrowth = EditorGUILayout.ToggleLeft(content, ivyBehavior.generateMeshDuringGrowth);

            int visibleIvy = ivyBehavior.ivyGraphs.Where(ivy => ivy.isVisible).Count();
            GUI.enabled = isInARealScene && visibleIvy > 0;
            EditorGUILayout.BeginHorizontal(EditorStyles.helpBox);
            content = new GUIContent(" Re-mesh Visible", iconMesh, "Remake meshes for all visible ivy, all at once. Useful when you change your ivy profile settings, and want to see the new changes.");
            if (GUILayout.Button(content, EditorStyles.miniButtonLeft, GUILayout.MaxWidth(EditorGUIUtility.currentViewWidth * 0.45f), GUILayout.Height(16)))
            {
                if (EditorUtility.DisplayDialog("Hedera: Remake All Visible Meshes", string.Format("Are you sure you want to remake {0} meshes all at once? It also might be very slow or crash your editor.", visibleIvy), "YES!", "Maybe not..."))
                {
                    foreach (var ivy in ivyBehavior.ivyGraphs)
                    {
                        if (!ivy.isVisible)
                        {
                            continue;
                        }
                        if (ivy.rootGO != null)
                        {
                            Undo.RegisterFullObjectHierarchyUndo(ivy.rootGO, "Hedera > Re-mesh Visible");
                        }
                        else
                        {
                            IvyMesh.InitOrRefreshRoot(ivy, ivyProfile);
                            Undo.RegisterCreatedObjectUndo(ivy.rootGO, "Hedera > Re-mesh Visible");
                        }
                        IvyMesh.GenerateMesh(ivy, ivyProfile, ivyProfile.useLightmapping, true);
                    }
                }
            }

            content = new GUIContent(" Merge Visible", iconLeaf, "Merge all visible ivy into a single ivy / single mesh. This is (usually) good for optimizing the 3D performance of your scene, especially if you have a lot of ivy everywhere.");
            if (GUILayout.Button(content, EditorStyles.miniButtonRight, GUILayout.Height(16)))
            {
                if (EditorUtility.DisplayDialog("Hedera: Merge All Visible Ivy Strokes", string.Format("Are you sure you want to merge {0} ivy plants into one?", visibleIvy), "YES!", "Maybe not..."))
                {
                    Undo.RegisterCompleteObjectUndo(ivyBehavior, "Hedera > Merge Visible");
                    Undo.SetCurrentGroupName("Hedera > Merge Visible");

                    //var rootIvyB = IvyCore.StartDestructiveEdit(ivyBehavior, applyAllOverrides:true );
                    IvyCore.MergeVisibleIvyGraphs(ivyBehavior, ivyProfile);
                    // IvyCore.CommitDestructiveEdit();
                }
            }

            EditorGUILayout.EndHorizontal();
            GUI.enabled = isInARealScene;

            if (ivyBehavior.ivyGraphs.Count == 0)
            {
                EditorGUILayout.HelpBox("To paint Ivy, first click [Start Painting Ivy]... then hold down [Left Mouse Button] on a collider in the Scene view, and drag.", MessageType.Info);
            }

            lastMeshIDs.Clear();
            IvyGraph ivyGraphObjJob = null; // used to pull .OBJ export out of the for() loop
            var      oldBGColor     = GUI.backgroundColor;
            var      pulseColor     = Color.Lerp(oldBGColor, Color.yellow, Mathf.PingPong(System.Convert.ToSingle(EditorApplication.timeSinceStartup) * 2f, 1f));
            for (int i = 0; i < ivyBehavior.ivyGraphs.Count; i++)
            {
                GUI.enabled = isInARealScene;
                var ivy = ivyBehavior.ivyGraphs[i];
                if (ivy.isGrowing)
                {
                    GUI.backgroundColor = pulseColor;
                }
                lastMeshIDs.Add(ivy.leafMeshID);
                lastMeshIDs.Add(ivy.branchMeshID);
                EditorGUILayout.BeginHorizontal(EditorStyles.helpBox);
                GUI.backgroundColor = oldBGColor;

                GUI.color = ivy.isVisible ? oldColor : Color.gray;
                var eyeIcon = ivy.isVisible ? iconVisOn : iconVisOff;
                content = new GUIContent(eyeIcon, "Click to toggle visibility for this ivy plant.\n(Enable / disable the game object.)");
                if (GUILayout.Button(content, EditorStyles.miniButtonLeft, GUILayout.Height(16), GUILayout.Width(24)))
                {
                    ivy.isVisible = !ivy.isVisible;
                    if (ivy.rootGO != null)
                    {
                        ivy.rootGO.SetActive(ivy.isVisible);
                    }
                }
                GUI.color = oldColor;

                GUI.color = ivy != currentIvyGraphMove ? oldColor : Color.gray;
                content   = new GUIContent(iconMove, "Click to start moving the seed position for this ivy plant.");
                if (GUILayout.Button(content, EditorStyles.miniButtonRight, GUILayout.Height(16), GUILayout.Width(24)))
                {
                    if (ivy.rootGO != null)
                    {
                        ivy.rootGO.transform.position = ivy.seedPos;
                    }
                    currentIvyGraphMove = ivy == currentIvyGraphMove ? null : ivy;
                }
                GUI.color = oldColor;

                if (ivy.rootGO != null)
                {
                    GUI.enabled = false;
                    EditorGUILayout.ObjectField(ivy.rootGO, typeof(GameObject), true);
                    GUI.enabled = isInARealScene;
                }
                else
                {
                    string ivyLabel = string.Format(
                        "(no mesh) {0} ivy",
                        ivy.roots.Count,
                        ivy.seedPos
                        );
                    GUILayout.Label(ivyLabel, EditorStyles.miniLabel);
                }

                if (!ivy.isGrowing)
                {
                    content = new GUIContent(iconMesh, "Make (or remake) the 3D mesh for this ivy");
                    if (GUILayout.Button(content, EditorStyles.miniButtonLeft, GUILayout.Width(24), GUILayout.Height(16)))
                    {
                        if (ivy.rootGO != null)
                        {
                            Undo.RegisterFullObjectHierarchyUndo(ivy.rootGO, "Hedera > Make Mesh");
                        }
                        else
                        {
                            IvyMesh.InitOrRefreshRoot(ivy, ivyProfile);
                            Undo.RegisterCreatedObjectUndo(ivy.rootGO, "Hedera > Make Mesh");
                        }
                        IvyMesh.GenerateMesh(ivy, ivyProfile, ivyProfile.useLightmapping, true);
                        Repaint();
                    }
                    GUI.enabled = ivy.branchMF != null || ivy.leafMF != null;
                    content     = new GUIContent("OBJ", iconExport, "Export ivy mesh to .OBJ file\n(Note: .OBJs only support one UV channel so they cannot have lightmap UVs, Unity must unwrap them upon import)");
                    if (GUILayout.Button(content, EditorStyles.miniButtonMid, GUILayout.Width(24), GUILayout.Height(16)))
                    {
                        ivyGraphObjJob = ivy;
                    }
                    GUI.enabled = isInARealScene;
                    content     = new GUIContent(iconTrash, "Delete this ivy as well as its mesh objects.");
                    if (GUILayout.Button(content, EditorStyles.miniButtonRight, GUILayout.Width(24), GUILayout.Height(16)))
                    {
                        if (ivy.rootGO != null)
                        {
                            IvyCore.DestroyObject(ivy.rootGO);
                        }
                        IvyCore.TryToDestroyMeshes(ivyBehavior, ivy);
                        Undo.RegisterCompleteObjectUndo(ivyBehavior, "Hedera > Delete Ivy");
                        ivyBehavior.ivyGraphs.Remove(ivy);
                        EditorGUILayout.EndHorizontal();
                        i--;
                        continue;
                    }
                }
                else
                {
                    if (GUILayout.Button("Stop Growing", EditorStyles.miniButton))
                    {
                        ivy.isGrowing = false;
                    }
                }
                EditorGUILayout.EndHorizontal();
            }

            if (ivyBehavior.ivyGraphs.Where(ivy => ivy.isGrowing).Count() > 0)
            {
                EditorGUILayout.Space();
                GUI.color = pulseColor;
                if (GUILayout.Button("Stop All Growing"))
                {
                    IvyCore.ForceStopGrowing();
                }
                GUI.color = oldColor;
            }

            GUI.enabled = true;
            EditorGUILayout.Space();
            content = new GUIContent("Debug Color", "When ivy doesn't have a mesh, Hedera will visualize the ivy structure as a debug wireframe with this color in the Scene view.");
            ivyBehavior.debugColor = EditorGUILayout.ColorField(content, ivyBehavior.debugColor);
            EditorGUILayout.Space();

            // was getting GUI errors doing OBJ export inline, so let's do it outside of the for() loop
            if (ivyGraphObjJob != null)
            {
                var filename = ObjExport.SaveObjFile(new GameObject[] { ivyGraphObjJob.rootGO }, true);
                if (isInARealScene &&
                    !string.IsNullOrEmpty(filename) &&
                    filename.StartsWith(Application.dataPath) &&
                    AssetDatabase.IsMainAssetAtPathLoaded("Assets" + filename.Substring(Application.dataPath.Length))
                    )
                {
                    int choice = EditorUtility.DisplayDialogComplex("Hedera: Instantiate .OBJ into scene?", "You just exported ivy into a .OBJ into your project.\nDo you want to replace the ivy with the .OBJ?", "Yes, and delete old ivy", "No, don't instantiate", "Yes, and hide old ivy");

                    if (choice == 0 || choice == 2)
                    {
                        var prefab = AssetDatabase.LoadAssetAtPath <Object>("Assets" + filename.Substring(Application.dataPath.Length));
                        var newObj = (GameObject)PrefabUtility.InstantiatePrefab(prefab);
                        Undo.RegisterCreatedObjectUndo(newObj, "Hedera > Instantiate OBJ");
                        newObj.transform.SetParent(ivyBehavior.transform);
                        newObj.transform.position = ivyGraphObjJob.seedPos;

                        var renders = newObj.GetComponentsInChildren <Renderer>();
                        renders[0].material = ivyProfile.branchMaterial;
                        if (renders.Length > 1)
                        {
                            renders[1].material = ivyProfile.leafMaterial;
                        }

                        if (choice == 0)     // remove old ivy
                        {
                            if (ivyGraphObjJob.rootGO != null)
                            {
                                IvyCore.DestroyObject(ivyGraphObjJob.rootGO);
                            }
                            IvyCore.TryToDestroyMeshes(ivyBehavior, ivyGraphObjJob);
                            Undo.RegisterCompleteObjectUndo(ivyBehavior, "Hedera > Instantiate OBJ");
                            ivyBehavior.ivyGraphs.Remove(ivyGraphObjJob);
                        }
                        else     // just turn off old ivy
                        {
                            Undo.RegisterCompleteObjectUndo(ivyBehavior, "Hedera > Instantiate OBJ");
                            ivyGraphObjJob.isVisible = false;
                            if (ivyGraphObjJob.rootGO != null)
                            {
                                ivyGraphObjJob.rootGO.SetActive(false);
                            }
                        }
                    }
                }
            }
        }