private static int _ShowBackupPrompt()
{
int dialogValue = EditorUtility.DisplayDialogComplex("Make Backup?", "This operation will significantly modify your scene. Would you like to make a backup first?", "Yes", "Cancel", "No");
if (dialogValue == 0)
{
string sceneDir;
string sceneName;
SECTR_Asset.SplitPath(EditorApplication.currentScene, out sceneDir, out sceneName);
sceneName = sceneName.Replace(".unity", "");
AssetDatabase.CopyAsset(EditorApplication.currentScene, sceneDir + sceneName + "_Backup.unity");
AssetDatabase.Refresh();
SECTR_VC.WaitForVC();
}
return(dialogValue);
}
public static string MakeExportFolder(string subFolder, bool clearSubfolder, out string sceneDir, out string sceneName)
{
if (GetCurrentSceneParts(out sceneDir, out sceneName))
{
string folderPath = sceneDir;
string baseFolder = UnityToOSPath(folderPath) + sceneName;
if (!System.IO.Directory.Exists(baseFolder))
{
// Create new folder. Use substring b/c Unity dislikes the trailing /
AssetDatabase.CreateFolder(folderPath.Substring(0, folderPath.Length - 1), sceneName);
SECTR_VC.WaitForVC();
}
folderPath += sceneName + "/";
// Inside that "standard" folder, make a Chunks subfolder, so that we can manage the contents,
// but first, remove previous export, if there was one.
string osPath = UnityToOSPath(folderPath) + subFolder;
bool createSubFolder = !string.IsNullOrEmpty(subFolder) && !System.IO.Directory.Exists(osPath);
if (clearSubfolder && !createSubFolder)
{
AssetDatabase.DeleteAsset(folderPath + subFolder);
createSubFolder = true;
}
if (createSubFolder)
{
// Create new folder. Use substring b/c Unity dislikes the trailing /
AssetDatabase.CreateFolder(folderPath.Substring(0, folderPath.Length - 1), subFolder);
SECTR_VC.WaitForVC();
}
if (!string.IsNullOrEmpty(subFolder))
{
folderPath += subFolder + "/";
}
return(folderPath);
}
else
{
sceneDir = null;
sceneName = null;
return(null);
}
}
/// Imports all exported Sectors into the scene. Safe to call from the command line.
public static void ImportSceneChunks()
{
int numSectors = SECTR_Sector.All.Count;
for (int sectorIndex = 0; sectorIndex < numSectors; ++sectorIndex)
{
SECTR_Sector sector = SECTR_Sector.All[sectorIndex];
if (sector.Frozen)
{
EditorUtility.DisplayProgressBar("Importing Scene Chunks", "Importing " + sector.name, (float)sectorIndex / (float)numSectors);
ImportFromChunk(sector);
}
}
if (SECTR_VC.CheckOut(EditorApplication.currentScene))
{
EditorApplication.SaveScene();
SECTR_VC.WaitForVC();
}
EditorUtility.ClearProgressBar();
}
/// Reverts all imported Sectors into the scene. Safe to call from the command line.
public static void RevertSceneChunks()
{
int numSectors = SECTR_Sector.All.Count;
for (int sectorIndex = 0; sectorIndex < numSectors; ++sectorIndex)
{
SECTR_Sector sector = SECTR_Sector.All[sectorIndex];
SECTR_Chunk chunk = sector.GetComponent <SECTR_Chunk>();
if (!sector.Frozen && chunk &&
System.IO.File.Exists(SECTR_Asset.UnityToOSPath(chunk.NodeName)))
{
EditorUtility.DisplayProgressBar("Reverting Scene Chunks", "Reverting " + sector.name, (float)sectorIndex / (float)numSectors);
DeleteExportedSector(sector);
}
}
if (SECTR_VC.CheckOut(EditorApplication.currentScene))
{
EditorApplication.SaveScene();
SECTR_VC.WaitForVC();
}
EditorUtility.ClearProgressBar();
}
/// Exports all of the Sectors in the scene, with user prompts and other helpful dialogs.
public static void ExportSceneChunksUI()
{
if (string.IsNullOrEmpty(EditorApplication.currentScene))
{
EditorUtility.DisplayDialog("Export Error", "Cannot export from a scene that's never been saved.", "Ok");
}
if (!SECTR_VC.CheckOut(EditorApplication.currentScene))
{
EditorUtility.DisplayDialog("Export Error", "Could not check out " + EditorApplication.currentScene + ". Export aborted.", "Ok");
return;
}
string sceneDir;
string sceneName;
string exportDir = SECTR_Asset.MakeExportFolder("Chunks", false, out sceneDir, out sceneName);
if (string.IsNullOrEmpty(exportDir))
{
EditorUtility.DisplayDialog("Export Error", "Could not create Chunks folder. Aborting Export.", "Ok");
return;
}
SECTR_Loader[] loaders = (SECTR_Loader[])GameObject.FindObjectsOfType(typeof(SECTR_Loader));
if (loaders.Length == 0 && !EditorUtility.DisplayDialog("No Loaders", "This scene has no loaders. Are you sure you wish to export?", "Ok", "Cancel"))
{
return;
}
int backupValue = _ShowBackupPrompt();
if (backupValue != 1)
{
ExportSceneChunks();
EditorUtility.DisplayDialog("Streaming Export Complete", "If this is the first time you've exported this level since launching Unity, you will need to build the project before you can use the _Streaming level.", "Ok");
}
}
public override void OnInspectorGUI()
{
SECTR_Chunk myChunk = (SECTR_Chunk)target;
SECTR_Sector mySector = myChunk.GetComponent <SECTR_Sector>();
EditorGUILayout.BeginHorizontal();
bool editMode = !EditorApplication.isPlaying && !EditorApplication.isPaused;
bool alreadyExported = myChunk && System.IO.File.Exists(SECTR_Asset.UnityToOSPath(myChunk.NodeName));
GUI.enabled = editMode;
if (mySector.Frozen)
{
// Import
if (alreadyExported &&
GUILayout.Button(new GUIContent("Import", "Imports this Sector into the scene.")))
{
modiferMode = ModifierMode.Import;
}
// Export
GUI.enabled = false;
GUILayout.Button(new GUIContent("Export", "Exports this Sector into a Chunk scene."));
GUI.enabled = editMode;
}
else
{
// Revert
if (alreadyExported &&
GUILayout.Button(new GUIContent("Revert", "Discards changes to this Sector.")))
{
modiferMode = ModifierMode.Revert;
}
// Export
if (GUILayout.Button(new GUIContent("Export", "Exports this Sector into a Chunk scene.")))
{
modiferMode = ModifierMode.Export;
}
}
EditorGUILayout.EndHorizontal();
base.OnInspectorGUI();
if (!mySector.Frozen)
{
proxyFoldout = EditorGUILayout.Foldout(proxyFoldout, "Proxy Mesh Tool");
if (proxyFoldout)
{
EditorGUILayout.BeginVertical();
_BuildChildControls(myChunk.transform, true);
if (GUILayout.Button("Create Proxy Mesh"))
{
Dictionary <Material, List <CombineInstance> > meshHash = new Dictionary <Material, List <CombineInstance> >();
Matrix4x4 chunkWorldToLocal = myChunk.transform.worldToLocalMatrix;
foreach (Renderer renderer in checkState.Keys)
{
if (checkState[renderer])
{
MeshFilter meshFilter = renderer.GetComponent <MeshFilter>();
int numSubMeshes = meshFilter.sharedMesh.subMeshCount;
for (int submeshIndex = 0; submeshIndex < numSubMeshes; ++submeshIndex)
{
Material material = renderer.sharedMaterials[submeshIndex];
List <CombineInstance> materialMeshes = null;
if (!meshHash.TryGetValue(material, out materialMeshes))
{
materialMeshes = new List <CombineInstance>();
meshHash[material] = materialMeshes;
}
CombineInstance instance = new CombineInstance();
instance.transform = chunkWorldToLocal * renderer.transform.localToWorldMatrix;
instance.mesh = renderer.GetComponent <MeshFilter>().sharedMesh;
instance.subMeshIndex = submeshIndex;
materialMeshes.Add(instance);
}
}
}
if (meshHash.Count > 0)
{
List <CombineInstance> combinedMeshes = new List <CombineInstance>();
List <Material> combinedMaterials = new List <Material>();
foreach (Material material in meshHash.Keys)
{
CombineInstance instance = new CombineInstance();
instance.mesh = new Mesh();
instance.mesh.CombineMeshes(meshHash[material].ToArray(), true, true);
combinedMeshes.Add(instance);
combinedMaterials.Add(material);
}
string sceneDir;
string sceneName;
string exportFolder = SECTR_Asset.MakeExportFolder("Proxies", false, out sceneDir, out sceneName);
myChunk.ProxyMesh = SECTR_Asset.Create <Mesh>(exportFolder, myChunk.name + "_Proxy", new Mesh());
myChunk.ProxyMesh.CombineMeshes(combinedMeshes.ToArray(), false, false);
myChunk.ProxyMaterials = combinedMaterials.ToArray();
int numCombined = combinedMeshes.Count;
for (int combinedIndex = 0; combinedIndex < numCombined; ++combinedIndex)
{
Mesh.DestroyImmediate(combinedMeshes[combinedIndex].mesh);
}
SECTR_VC.WaitForVC();
}
else
{
EditorUtility.DisplayDialog("Proxy Error", "Must have at least one mesh selected to create a proxy.", "Ok");
}
}
EditorGUILayout.EndVertical();
}
}
GUI.enabled = true;
if (modiferMode != ModifierMode.None)
{
EditorApplication.update += ExportUpdate;
}
}
/// Exports all Sectors in the scene. Safe to call from the command line.
public static void ExportSceneChunks()
{
// Create a progress bar, because we're friendly like that.
string progressTitle = "Chunking Level For Streaming";
EditorUtility.DisplayProgressBar(progressTitle, "Preparing", 0);
List <EditorBuildSettingsScene> sceneSettings = new List <EditorBuildSettingsScene>(EditorBuildSettings.scenes);
EditorBuildSettingsScene rootSceneSettings = new EditorBuildSettingsScene(EditorApplication.currentScene, true);
bool sceneExists = false;
foreach (EditorBuildSettingsScene oldScene in sceneSettings)
{
if (oldScene.path == EditorApplication.currentScene)
{
sceneExists = true;
oldScene.enabled = true;
break;
}
}
if (!sceneExists)
{
sceneSettings.Add(rootSceneSettings);
EditorBuildSettings.scenes = sceneSettings.ToArray();
}
// Export each sector to an individual file.
// Inner loop reloads the scene, and Sector creation order is not deterministic,
// so it requires multiple passes through the list.
int numSectors = SECTR_Sector.All.Count;
int progress = 0;
int unfrozenSectors = 0;
// Figure out how many sectors we should be exporting.
for (int sectorIndex = 0; sectorIndex < numSectors; ++sectorIndex)
{
SECTR_Sector sector = SECTR_Sector.All[sectorIndex];
if (!sector.Frozen)
{
++unfrozenSectors;
}
}
while (progress < unfrozenSectors)
{
for (int sectorIndex = 0; sectorIndex < numSectors; ++sectorIndex)
{
SECTR_Sector sector = SECTR_Sector.All[sectorIndex];
if (!sector.Frozen)
{
EditorUtility.DisplayProgressBar(progressTitle, "Exporting " + sector.name, (float)progress / (float)unfrozenSectors);
ExportToChunk(sector);
++progress;
}
}
}
EditorApplication.SaveScene();
SECTR_VC.WaitForVC();
// Cleanup
EditorUtility.ClearProgressBar();
}
/// Exports the specific Sector into an external level file, deleting the current scene copy in the process. Safe to call from command line.
/// <param name="sector">The Sector to export.</param>
/// <returns>Returns true if Sector was successfully exported, false otherwise.</returns>
public static bool ExportToChunk(SECTR_Sector sector)
{
if (string.IsNullOrEmpty(EditorApplication.currentScene))
{
Debug.LogError("Scene must be saved befor export.");
return(false);
}
if (sector == null)
{
Debug.LogError("Cannot export null Sector.");
return(false);
}
if (!sector.gameObject.activeInHierarchy)
{
Debug.LogError("Cannot export inactive Sectors.");
return(false);
}
if (!sector.gameObject.isStatic)
{
Debug.Log("Skipping export of dynamic sector" + sector.name + ".");
return(true);
}
if (sector.Frozen)
{
// Already exported
Debug.Log("Skipping frozen sector " + sector.name);
return(true);
}
string sceneDir;
string sceneName;
string exportDir = SECTR_Asset.MakeExportFolder("Chunks", false, out sceneDir, out sceneName);
if (string.IsNullOrEmpty(exportDir))
{
Debug.LogError("Could not create Chunks folder.");
return(false);
}
// Delete the previous export, if there is one.
// Prevents duplicate names piling up.
SECTR_Chunk oldChunk = sector.GetComponent <SECTR_Chunk>();
if (oldChunk)
{
AssetDatabase.DeleteAsset(oldChunk.NodeName);
SECTR_VC.WaitForVC();
}
// Sectors are not guaranteed to be uniquely named, so always generate a unique name.
string originalSectorName = sector.name;
string newAssetPath = AssetDatabase.GenerateUniqueAssetPath(exportDir + sceneName + "_" + originalSectorName + ".unity");
sector.name = newAssetPath;
// Make sure the current scene is saved, preserving all changes.
EditorApplication.SaveScene();
SECTR_VC.WaitForVC();
string originalScene = EditorApplication.currentScene;
List <EditorBuildSettingsScene> sceneSettings = new List <EditorBuildSettingsScene>(EditorBuildSettings.scenes);
// SaveScene can cause crashes w/ version control, so we work around it with a copy.
AssetDatabase.CopyAsset(originalScene, newAssetPath);
SECTR_VC.WaitForVC();
EditorApplication.OpenScene(newAssetPath);
SECTR_VC.WaitForVC();
sector = _FindSectorByName(newAssetPath);
// Make sure to force update all members so that membership info is correct.
List <SECTR_Member> allMembers = FindAllOfType <SECTR_Member>();
for (int memberIndex = 0; memberIndex < allMembers.Count; ++memberIndex)
{
allMembers[memberIndex].ForceUpdate(true);
}
// Multi-sector members need to stay in the master scene.
foreach (SECTR_Member member in allMembers)
{
if (member.Sectors.Count > 1 && member.transform.IsChildOf(sector.transform))
{
bool unparentMember = true;
// Only affect the first member in the hierarchy below the sector
Transform parent = member.transform.parent;
while (parent != sector.transform)
{
if (parent.GetComponent <SECTR_Member>() != null)
{
unparentMember = false;
break;
}
parent = parent.parent;
}
if (unparentMember)
{
if (PrefabUtility.GetPrefabType(sector.gameObject) != PrefabType.None)
{
Debug.LogWarning("Export is unparenting shared member " + member.name + " from prefab Sector " + sector.name + ". This will break the prefab.");
}
member.transform.parent = null;
}
}
}
// Unparent the sector from anything
sector.transform.parent = null;
// Any children of this sector should be exported.
// The rest should be destroyed.
List <Transform> allXforms = FindAllOfType <Transform>();
#if !UNITY_STREAM_ENLIGHTEN
List <int> referencedLightmaps = new List <int>(LightmapSettings.lightmaps.Length);
#endif
foreach (Transform transform in allXforms)
{
if (transform && transform.IsChildOf(sector.transform))
{
#if !UNITY_STREAM_ENLIGHTEN
Renderer childRenderer = transform.GetComponent <Renderer>();
if (childRenderer && childRenderer.lightmapIndex >= 0 && !referencedLightmaps.Contains(childRenderer.lightmapIndex))
{
referencedLightmaps.Add(childRenderer.lightmapIndex);
}
Terrain childTerrain = transform.GetComponent <Terrain>();;
if (childTerrain && childTerrain.lightmapIndex >= 0 && !referencedLightmaps.Contains(childTerrain.lightmapIndex))
{
referencedLightmaps.Add(childTerrain.lightmapIndex);
}
#endif
}
else if (transform)
{
GameObject.DestroyImmediate(transform.gameObject);
}
}
#if !UNITY_STREAM_ENLIGHTEN
if (referencedLightmaps.Count > 0)
{
SECTR_LightmapRef newRef = sector.GetComponent <SECTR_LightmapRef>();
if (!newRef)
{
newRef = sector.gameObject.AddComponent <SECTR_LightmapRef>();
}
newRef.ReferenceLightmaps(referencedLightmaps);
}
// Nuke global data like nav meshes and lightmaps
// Lightmap indexes will be preserved on export.
NavMeshBuilder.ClearAllNavMeshes();
#if !UNITY_4
SerializedObject serialObj = new SerializedObject(GameObject.FindObjectOfType <LightmapSettings>());
SerializedProperty snapshotProp = serialObj.FindProperty("m_LightmapSnapshot");
snapshotProp.objectReferenceValue = null;
serialObj.ApplyModifiedProperties();
#endif
LightmapSettings.lightmaps = new LightmapData[0];
LightmapSettings.lightProbes = new LightProbes();
#endif
GameObject dummyParent = new GameObject(newAssetPath);
SECTR_ChunkRef chunkRef = dummyParent.AddComponent <SECTR_ChunkRef>();
chunkRef.RealSector = sector.transform;
sector.transform.parent = dummyParent.transform;
// If the sector has a chunk marked for re-use, perform some special work.
SECTR_Chunk originalChunk = sector.GetComponent <SECTR_Chunk>();
if (originalChunk && originalChunk.ExportForReuse)
{
chunkRef.Recentered = true;
sector.transform.localPosition = Vector3.zero;
sector.transform.localRotation = Quaternion.identity;
sector.transform.localScale = Vector3.one;
sector.gameObject.SetActive(false);
}
// Rename the real chunk root with a clear name.
sector.name = originalSectorName + "_Chunk";
// Strip off any functional objects that will be preserved in the root scene.
// Destroy the chunk first because it has dependencies on Sector.
GameObject.DestroyImmediate(originalChunk);
Component[] components = sector.GetComponents <Component>();
foreach (Component component in components)
{
if (component.GetType().IsSubclassOf(typeof(MonoBehaviour)) &&
component.GetType() != typeof(Terrain) && component.GetType() != typeof(SECTR_LightmapRef))
{
GameObject.DestroyImmediate(component);
}
}
// Re-add a member that will persist all of the references and save us work post load.
SECTR_Member refMember = chunkRef.RealSector.gameObject.AddComponent <SECTR_Member>();
refMember.NeverJoin = true;
refMember.BoundsUpdateMode = SECTR_Member.BoundsUpdateModes.Static;
refMember.ForceUpdate(true);
// Save scene and append it to the build settings.
EditorApplication.SaveScene();
SECTR_VC.WaitForVC();
EditorBuildSettingsScene sectorSceneSettings = new EditorBuildSettingsScene(newAssetPath, true);
bool sceneExists = false;
foreach (EditorBuildSettingsScene oldScene in sceneSettings)
{
if (oldScene.path == newAssetPath)
{
sceneExists = true;
oldScene.enabled = true;
break;
}
}
if (!sceneExists)
{
sceneSettings.Add(sectorSceneSettings);
}
string[] pathParts = newAssetPath.Split('/');
string sectorPath = pathParts[pathParts.Length - 1].Replace(".unity", "");
// Update the master scene with exported info.
EditorApplication.OpenScene(originalScene);
SECTR_VC.WaitForVC();
sector = _FindSectorByName(newAssetPath);
sector.name = originalSectorName;
DeleteExportedSector(sector);
// Make sure Sectors has a Chunk
SECTR_Chunk newChunk = sector.GetComponent <SECTR_Chunk>();
if (!newChunk)
{
newChunk = sector.gameObject.AddComponent <SECTR_Chunk>();
}
newChunk.ScenePath = sectorPath;
newChunk.NodeName = newAssetPath;
newChunk.enabled = true;
// Disable a TerrainComposer node if there is one.
MonoBehaviour terrainNeighbors = sector.GetComponent("TerrainNeighbors") as MonoBehaviour;
if (terrainNeighbors)
{
terrainNeighbors.enabled = false;
}
// Save off the accumulated build settings
EditorBuildSettings.scenes = sceneSettings.ToArray();
AssetDatabase.Refresh();
EditorApplication.SaveScene();
SECTR_VC.WaitForVC();
return(true);
}
public static void SectorizeTerrain(Terrain terrain, int sectorsWidth, int sectorsLength, int sectorsHeight, bool splitTerrain, bool createPortalGeo, bool includeStatic, bool includeDynamic)
{
if (!terrain)
{
Debug.LogWarning("Cannot sectorize null terrain.");
return;
}
if (terrain.transform.root.GetComponentsInChildren <SECTR_Sector>().Length > 0)
{
Debug.LogWarning("Cannot sectorize terrain that is already part of a Sector.");
}
string undoString = "Sectorized " + terrain.name;
if (sectorsWidth == 1 && sectorsLength == 1)
{
SECTR_Sector newSector = terrain.gameObject.AddComponent <SECTR_Sector>();
SECTR_Undo.Created(newSector, undoString);
newSector.ForceUpdate(true);
return;
}
if (splitTerrain && (!Mathf.IsPowerOfTwo(sectorsWidth) || !Mathf.IsPowerOfTwo(sectorsLength)))
{
Debug.LogWarning("Splitting terrain requires power of two sectors in width and length.");
splitTerrain = false;
}
else if (splitTerrain && sectorsWidth != sectorsLength)
{
Debug.LogWarning("Splitting terrain requires same number of sectors in width and length.");
splitTerrain = false;
}
int terrainLayer = terrain.gameObject.layer;
Vector3 terrainSize = terrain.terrainData.size;
float sectorWidth = terrainSize.x / sectorsWidth;
float sectorHeight = terrainSize.y / sectorsHeight;
float sectorLength = terrainSize.z / sectorsLength;
int heightmapWidth = (terrain.terrainData.heightmapWidth / sectorsWidth);
int heightmapLength = (terrain.terrainData.heightmapHeight / sectorsLength);
int alphaWidth = terrain.terrainData.alphamapWidth / sectorsWidth;
int alphaLength = terrain.terrainData.alphamapHeight / sectorsLength;
int detailWidth = terrain.terrainData.detailWidth / sectorsWidth;
int detailLength = terrain.terrainData.detailHeight / sectorsLength;
string sceneDir = "";
string sceneName = "";
string exportFolder = splitTerrain ? SECTR_Asset.MakeExportFolder("TerrainSplits", false, out sceneDir, out sceneName) : "";
Transform baseTransform = null;
if (splitTerrain)
{
GameObject baseObject = new GameObject(terrain.name);
baseTransform = baseObject.transform;
SECTR_Undo.Created(baseObject, undoString);
}
List <Transform> rootTransforms = new List <Transform>();
List <Bounds> rootBounds = new List <Bounds>();
_GetRoots(includeStatic, includeDynamic, rootTransforms, rootBounds);
// Create Sectors
string progressTitle = "Sectorizing Terrain";
int progressCounter = 0;
EditorUtility.DisplayProgressBar(progressTitle, "Preparing", 0);
SECTR_Sector[,,] newSectors = new SECTR_Sector[sectorsWidth, sectorsLength, sectorsHeight];
Terrain[,] newTerrains = splitTerrain ? new Terrain[sectorsWidth, sectorsLength] : null;
for (int widthIndex = 0; widthIndex < sectorsWidth; ++widthIndex)
{
for (int lengthIndex = 0; lengthIndex < sectorsLength; ++lengthIndex)
{
for (int heightIndex = 0; heightIndex < sectorsHeight; ++heightIndex)
{
string newName = terrain.name + " " + widthIndex + "-" + lengthIndex + "-" + heightIndex;
EditorUtility.DisplayProgressBar(progressTitle, "Creating sector " + newName, progressCounter++ / (float)(sectorsWidth * sectorsLength * sectorsHeight));
GameObject newSectorObject = new GameObject("SECTR " + newName + " Sector");
newSectorObject.transform.parent = baseTransform;
Vector3 sectorCorner = new Vector3(widthIndex * sectorWidth,
heightIndex * sectorHeight,
lengthIndex * sectorLength) + terrain.transform.position;
newSectorObject.transform.position = sectorCorner;
newSectorObject.isStatic = true;
SECTR_Sector newSector = newSectorObject.AddComponent <SECTR_Sector>();
newSector.OverrideBounds = !splitTerrain && (sectorsWidth > 1 || sectorsLength > 1);
newSector.BoundsOverride = new Bounds(sectorCorner + new Vector3(sectorWidth * 0.5f, sectorHeight * 0.5f, sectorLength * 0.5f),
new Vector3(sectorWidth, sectorHeight, sectorLength));
newSectors[widthIndex, lengthIndex, heightIndex] = newSector;
if (splitTerrain && heightIndex == 0)
{
GameObject newTerrainObject = new GameObject(newName + " Terrain");
newTerrainObject.layer = terrainLayer;
newTerrainObject.tag = terrain.tag;
newTerrainObject.transform.parent = newSectorObject.transform;
newTerrainObject.transform.localPosition = Vector3.zero;
newTerrainObject.transform.localRotation = Quaternion.identity;
newTerrainObject.transform.localScale = Vector3.one;
newTerrainObject.isStatic = true;
Terrain newTerrain = newTerrainObject.AddComponent <Terrain>();
newTerrain.terrainData = SECTR_Asset.Create <TerrainData>(exportFolder, newName, new TerrainData());
EditorUtility.SetDirty(newTerrain.terrainData);
SECTR_VC.WaitForVC();
// Copy properties
// Basic terrain properties
newTerrain.editorRenderFlags = terrain.editorRenderFlags;
newTerrain.castShadows = terrain.castShadows;
newTerrain.heightmapMaximumLOD = terrain.heightmapMaximumLOD;
newTerrain.heightmapPixelError = terrain.heightmapPixelError;
newTerrain.lightmapIndex = -1; // Can't set lightmap UVs on terrain.
newTerrain.materialTemplate = terrain.materialTemplate;
#if !UNITY_4
newTerrain.bakeLightProbesForTrees = terrain.bakeLightProbesForTrees;
newTerrain.legacyShininess = terrain.legacyShininess;
newTerrain.legacySpecular = terrain.legacySpecular;
#endif
// Copy geometric data
int heightmapBaseX = widthIndex * heightmapWidth;
int heightmapBaseY = lengthIndex * heightmapLength;
int heightmapWidthX = heightmapWidth + (sectorsWidth > 1 ? 1 : 0);
int heightmapWidthY = heightmapLength + (sectorsLength > 1 ? 1 : 0);
newTerrain.terrainData.heightmapResolution = terrain.terrainData.heightmapResolution / sectorsWidth;
newTerrain.terrainData.size = new Vector3(sectorWidth, terrainSize.y, sectorLength);
newTerrain.terrainData.SetHeights(0, 0, terrain.terrainData.GetHeights(heightmapBaseX, heightmapBaseY, heightmapWidthX, heightmapWidthY));
#if !UNITY_4
newTerrain.terrainData.thickness = terrain.terrainData.thickness;
#endif
// Copy alpha maps
int alphaBaseX = alphaWidth * widthIndex;
int alphaBaseY = alphaLength * lengthIndex;
newTerrain.terrainData.splatPrototypes = terrain.terrainData.splatPrototypes;
newTerrain.basemapDistance = terrain.basemapDistance;
newTerrain.terrainData.baseMapResolution = terrain.terrainData.baseMapResolution / sectorsWidth;
newTerrain.terrainData.alphamapResolution = terrain.terrainData.alphamapResolution / sectorsWidth;
newTerrain.terrainData.SetAlphamaps(0, 0, terrain.terrainData.GetAlphamaps(alphaBaseX, alphaBaseY, alphaWidth, alphaLength));
// Copy detail info
newTerrain.detailObjectDensity = terrain.detailObjectDensity;
newTerrain.detailObjectDistance = terrain.detailObjectDistance;
newTerrain.terrainData.detailPrototypes = terrain.terrainData.detailPrototypes;
newTerrain.terrainData.SetDetailResolution(terrain.terrainData.detailResolution / sectorsWidth, 8); // TODO: extract detailResolutionPerPatch
#if !UNITY_4
newTerrain.collectDetailPatches = terrain.collectDetailPatches;
#endif
int detailBaseX = detailWidth * widthIndex;
int detailBaseY = detailLength * lengthIndex;
int numLayers = terrain.terrainData.detailPrototypes.Length;
for (int layer = 0; layer < numLayers; ++layer)
{
newTerrain.terrainData.SetDetailLayer(0, 0, layer, terrain.terrainData.GetDetailLayer(detailBaseX, detailBaseY, detailWidth, detailLength, layer));
}
// Copy grass and trees
newTerrain.terrainData.wavingGrassAmount = terrain.terrainData.wavingGrassAmount;
newTerrain.terrainData.wavingGrassSpeed = terrain.terrainData.wavingGrassSpeed;
newTerrain.terrainData.wavingGrassStrength = terrain.terrainData.wavingGrassStrength;
newTerrain.terrainData.wavingGrassTint = terrain.terrainData.wavingGrassTint;
newTerrain.treeBillboardDistance = terrain.treeBillboardDistance;
newTerrain.treeCrossFadeLength = terrain.treeCrossFadeLength;
newTerrain.treeDistance = terrain.treeDistance;
newTerrain.treeMaximumFullLODCount = terrain.treeMaximumFullLODCount;
newTerrain.terrainData.treePrototypes = terrain.terrainData.treePrototypes;
newTerrain.terrainData.RefreshPrototypes();
foreach (TreeInstance treeInstace in terrain.terrainData.treeInstances)
{
if (treeInstace.prototypeIndex >= 0 && treeInstace.prototypeIndex < newTerrain.terrainData.treePrototypes.Length &&
newTerrain.terrainData.treePrototypes[treeInstace.prototypeIndex].prefab)
{
Vector3 worldSpaceTreePos = Vector3.Scale(treeInstace.position, terrainSize) + terrain.transform.position;
if (newSector.BoundsOverride.Contains(worldSpaceTreePos))
{
Vector3 localSpaceTreePos = new Vector3((worldSpaceTreePos.x - newTerrain.transform.position.x) / sectorWidth,
treeInstace.position.y,
(worldSpaceTreePos.z - newTerrain.transform.position.z) / sectorLength);
TreeInstance newInstance = treeInstace;
newInstance.position = localSpaceTreePos;
newTerrain.AddTreeInstance(newInstance);
}
}
}
// Copy physics
#if UNITY_4_LATE
newTerrain.terrainData.physicMaterial = terrain.terrainData.physicMaterial;
#endif
// Force terrain to rebuild
newTerrain.Flush();
UnityEditor.EditorUtility.SetDirty(newTerrain.terrainData);
SECTR_VC.WaitForVC();
newTerrain.enabled = false;
newTerrain.enabled = true;
TerrainCollider terrainCollider = terrain.GetComponent <TerrainCollider>();
if (terrainCollider)
{
TerrainCollider newCollider = newTerrainObject.AddComponent <TerrainCollider>();
#if !UNITY_4_LATE
newCollider.sharedMaterial = terrainCollider.sharedMaterial;
#endif
newCollider.terrainData = newTerrain.terrainData;
}
newTerrains[widthIndex, lengthIndex] = newTerrain;
SECTR_Undo.Created(newTerrainObject, undoString);
}
newSector.ForceUpdate(true);
SECTR_Undo.Created(newSectorObject, undoString);
_Encapsulate(newSector, rootTransforms, rootBounds, undoString);
}
}
}
// Create portals and neighbors
progressCounter = 0;
for (int widthIndex = 0; widthIndex < sectorsWidth; ++widthIndex)
{
for (int lengthIndex = 0; lengthIndex < sectorsLength; ++lengthIndex)
{
for (int heightIndex = 0; heightIndex < sectorsHeight; ++heightIndex)
{
EditorUtility.DisplayProgressBar(progressTitle, "Creating portals...", progressCounter++ / (float)(sectorsWidth * sectorsLength * sectorsHeight));
if (widthIndex < sectorsWidth - 1)
{
_CreatePortal(createPortalGeo, newSectors[widthIndex + 1, lengthIndex, heightIndex], newSectors[widthIndex, lengthIndex, heightIndex], baseTransform, undoString);
}
if (lengthIndex < sectorsLength - 1)
{
_CreatePortal(createPortalGeo, newSectors[widthIndex, lengthIndex + 1, heightIndex], newSectors[widthIndex, lengthIndex, heightIndex], baseTransform, undoString);
}
if (heightIndex > 0)
{
_CreatePortal(createPortalGeo, newSectors[widthIndex, lengthIndex, heightIndex], newSectors[widthIndex, lengthIndex, heightIndex - 1], baseTransform, undoString);
}
}
}
}
if (splitTerrain)
{
progressCounter = 0;
for (int widthIndex = 0; widthIndex < sectorsWidth; ++widthIndex)
{
for (int lengthIndex = 0; lengthIndex < sectorsLength; ++lengthIndex)
{
EditorUtility.DisplayProgressBar(progressTitle, "Smoothing split terrain...", progressCounter++ / (float)(sectorsWidth * sectorsLength * sectorsHeight));
// Blend together the seams of the alpha maps, which requires
// going through all of the mip maps of all of the layer textures.
// We have to blend here rather than when we set the alpha data (above)
// because Unity computes mips and we need to blend all of the mips.
Terrain newTerrain = newTerrains[widthIndex, lengthIndex];
SECTR_Sector terrainSector = newSectors[widthIndex, lengthIndex, 0];
terrainSector.LeftTerrain = widthIndex > 0 ? newSectors[widthIndex - 1, lengthIndex, 0] : null;
terrainSector.RightTerrain = widthIndex < sectorsWidth - 1 ? newSectors[widthIndex + 1, lengthIndex, 0] : null;
terrainSector.BottomTerrain = lengthIndex > 0 ? newSectors[widthIndex, lengthIndex - 1, 0] : null;
terrainSector.TopTerrain = lengthIndex < sectorsLength - 1 ? newSectors[widthIndex, lengthIndex + 1, 0] : null;
terrainSector.ConnectTerrainNeighbors();
// Use reflection trickery to get at the raw texture values.
System.Reflection.PropertyInfo alphamapProperty = newTerrain.terrainData.GetType().GetProperty("alphamapTextures",
System.Reflection.BindingFlags.NonPublic |
System.Reflection.BindingFlags.Public |
System.Reflection.BindingFlags.Instance |
System.Reflection.BindingFlags.Static);
// Get the texture we'll write into
Texture2D[] alphaTextures = (Texture2D[])alphamapProperty.GetValue(newTerrain.terrainData, null);
int numTextures = alphaTextures.Length;
// Get the textures we'll read from
Texture2D[] leftNeighborTextures = terrainSector.LeftTerrain != null ? (Texture2D[])alphamapProperty.GetValue(newTerrains[widthIndex - 1, lengthIndex].terrainData, null) : null;
Texture2D[] rightNeighborTextures = terrainSector.RightTerrain != null ? (Texture2D[])alphamapProperty.GetValue(newTerrains[widthIndex + 1, lengthIndex].terrainData, null) : null;
Texture2D[] topNeighborTextures = terrainSector.TopTerrain != null ? (Texture2D[])alphamapProperty.GetValue(newTerrains[widthIndex, lengthIndex + 1].terrainData, null) : null;
Texture2D[] bottomNeighborTextures = terrainSector.BottomTerrain != null ? (Texture2D[])alphamapProperty.GetValue(newTerrains[widthIndex, lengthIndex - 1].terrainData, null) : null;
for (int textureIndex = 0; textureIndex < numTextures; ++textureIndex)
{
Texture2D alphaTexture = alphaTextures[textureIndex];
Texture2D leftTexture = leftNeighborTextures != null ? leftNeighborTextures[textureIndex] : null;
Texture2D rightTexture = rightNeighborTextures != null ? rightNeighborTextures[textureIndex] : null;
Texture2D topTexture = topNeighborTextures != null ? topNeighborTextures[textureIndex] : null;
Texture2D bottomTexture = bottomNeighborTextures != null ? bottomNeighborTextures[textureIndex] : null;
int numMips = alphaTexture.mipmapCount;
for (int mipIndex = 0; mipIndex < numMips; ++mipIndex)
{
Color[] alphaTexels = alphaTexture.GetPixels(mipIndex);
int width = (int)Mathf.Sqrt(alphaTexels.Length);
int height = width;
for (int texelWidthIndex = 0; texelWidthIndex < width; ++texelWidthIndex)
{
for (int texelHeightIndex = 0; texelHeightIndex < height; ++texelHeightIndex)
{
// We can take advantage of the build order to average on the leading edges (right and top)
// and then copy form the trailing edges (left and bottom)
if (texelWidthIndex == 0 && leftTexture)
{
Color[] neighborTexels = leftTexture.GetPixels(mipIndex);
alphaTexels[texelWidthIndex + texelHeightIndex * width] = neighborTexels[(width - 1) + (texelHeightIndex * width)];
}
else if (texelWidthIndex == width - 1 && rightTexture)
{
Color[] neighborTexels = rightTexture.GetPixels(mipIndex);
alphaTexels[texelWidthIndex + texelHeightIndex * width] += neighborTexels[0 + (texelHeightIndex * width)];
alphaTexels[texelWidthIndex + texelHeightIndex * width] *= 0.5f;
}
else if (texelHeightIndex == 0 && bottomTexture)
{
Color[] neighborTexels = bottomTexture.GetPixels(mipIndex);
alphaTexels[texelWidthIndex + texelHeightIndex * width] = neighborTexels[texelWidthIndex + ((height - 1) * width)];
}
else if (texelHeightIndex == height - 1 && topTexture)
{
Color[] neighborTexels = topTexture.GetPixels(mipIndex);
alphaTexels[texelWidthIndex + texelHeightIndex * width] += neighborTexels[texelWidthIndex + (0 * width)];
alphaTexels[texelWidthIndex + texelHeightIndex * width] *= 0.5f;
}
}
}
alphaTexture.SetPixels(alphaTexels, mipIndex);
}
alphaTexture.wrapMode = TextureWrapMode.Clamp;
alphaTexture.Apply(false);
}
newTerrain.Flush();
}
}
}
EditorUtility.ClearProgressBar();
// destroy original terrain
if (splitTerrain)
{
SECTR_Undo.Destroy(terrain.gameObject, undoString);
}
}
