private static void AutoExtractTypes(FoliagePainterEditTime painter, Terrain terrain)
{
TreeInstance[] terrainTreeInstances = terrain.terrainData.treeInstances;
TreePrototype[] terrainTreePrototypes = terrain.terrainData.treePrototypes;
for (int i = 0; i < terrainTreePrototypes.Length; i++)
{
TreePrototype proto = terrainTreePrototypes[i];
GameObject prefab = proto.prefab;
// See if we already have it
if (painter.HasFoliageType(prefab) == false)
{
// Attempt to add it
FoliageTypeBuilder builder;
bool anyError;
FoliageUtilitiesEditor.ConfigurePrefab(prefab, out builder, out anyError);
if (anyError == false)
{
painter.AddFoliageType(builder);
}
else
{
FoliageLog.e("Could not add foliage type: " + prefab.name + " due to error. Check the log for more info.");
}
}
}
}
private static void ExtractFromRootObject(FoliagePainterEditTime painter, GameObject root, bool disable, bool delete)
{
FoliageLog.Assert(root.transform.parent == null, "Must have root object!");
List <GameObject> foliageInstances = new List <GameObject>();
RecursivelyExtract(root, foliageInstances);
int extracted = 0;
// Process them and add them
for (int i = foliageInstances.Count - 1; i >= 0; i--)
{
GameObject proto = foliageInstances[i];
GameObject protoPrefab = PrefabUtility.GetPrefabParent(proto) as GameObject;
if (painter.HasFoliageType(protoPrefab) == false)
{
continue;
}
int hash = painter.GetFoliageTypeHash(protoPrefab);
FoliageInstance instance = new FoliageInstance();
// Populate the data
// Get the world data
Vector3 worldPosition = proto.transform.position;
Vector3 worldScale = proto.transform.localScale;
Quaternion worldRotation = proto.transform.rotation;
instance.m_Position = worldPosition;
instance.m_Scale = worldScale;
instance.m_Rotation = worldRotation;
// Add the foliage instance
painter.AddFoliageInstance(hash, instance, root.name);
extracted++;
// Auto disable
if (disable)
{
proto.SetActive(false);
}
// Auto delete
if (delete)
{
GameObject.DestroyImmediate(proto);
}
}
FoliageLog.i("Extracted objects: " + extracted + " from: " + root.name);
}
private static void ExtractFromTerrain(FoliagePainter painterRaw, FoliagePainterEditTime painter, Terrain terrain, bool autoExtract, bool disable, bool delete)
{
string label = FoliageGlobals.LABEL_TERRAIN_EXTRACTED + terrain.name;
// Ensure that we have all the required foliage types
List <TreeInstance> terrainTreeInstances = new List <TreeInstance>(terrain.terrainData.treeInstances);
TreePrototype[] terrainTreePrototypes = terrain.terrainData.treePrototypes;
// Attempt to build the prefab's that we don't have
if (autoExtract)
{
AutoExtractTypes(painter, terrain);
}
int extracted = 0;
for (int i = terrainTreeInstances.Count - 1; i >= 0; i--)
{
GameObject proto = terrainTreePrototypes[terrainTreeInstances[i].prototypeIndex].prefab;
if (painter.HasFoliageType(proto) == false)
{
continue;
}
int hash = painter.GetFoliageTypeHash(proto);
FoliageType type = painterRaw.GetFoliageTypeByHash(hash);
FoliageInstance instance = new FoliageInstance();
// Populate the data
// Get the world data
float YOffset = Random.Range(type.m_PaintInfo.m_YOffset.x, type.m_PaintInfo.m_YOffset.y);
Vector3 worldPosition = FoliageTerrainUtilities.TerrainNormalizedToWorldPos(terrainTreeInstances[i].position, terrain) + new Vector3(0, YOffset, 0); // YOffset too
Vector3 worldScale = new Vector3(terrainTreeInstances[i].widthScale, terrainTreeInstances[i].heightScale, terrainTreeInstances[i].widthScale);
Vector3 worldRotation = new Vector3(0, terrainTreeInstances[i].rotation * Mathf.Rad2Deg, 0);
instance.m_Position = worldPosition;
instance.m_Scale = worldScale;
instance.m_Rotation = Quaternion.Euler(worldRotation.x, worldRotation.y, worldRotation.z);
// Add the foliage instance
painter.AddFoliageInstance(hash, instance, label);
extracted++;
// Delete the instance from the terrain if we have to
if (delete)
{
terrainTreeInstances.RemoveAt(i);
}
}
if (disable)
{
terrain.drawTreesAndFoliage = false;
}
// If we should delete then delete the instance
if (delete)
{
terrain.terrainData.treeInstances = terrainTreeInstances.ToArray();
UnityEditor.SceneManagement.EditorSceneManager.MarkSceneDirty(terrain.gameObject.scene);
}
FoliageLog.i("Extracted objects: " + extracted + " from: " + terrain.name);
}