/// <summary>
/// Run this safe method if you want to edit anything on the specific tree instance.
/// This will cause the changes to be saved over the chunks and it will be "safe".
/// </summary>
/// <param name="treeInstance">the tree instance</param>
/// <param name="treeInstanceID">The id of the tree instance</param>
/// <param name="action">the action</param>
public static void RunActionOnTreeInstance(this Terrain terrain, TreeInstance treeInstance, int treeInstanceID, System.Func <TreeInstance, TreeInstance> action, System.Action <Sectors.ChunkObject> runOnChunk)
{
UNTerrain baseTerrain = terrain.GetComponent <UNTerrain>();
if (baseTerrain != null)
{
TIChunk chunk = baseTerrain.sector.getChunk(treeInstance.position.LocalToWorld(terrain.terrainData.size, Vector3.zero), 0) as TIChunk;
if (chunk != null)
{
if (action != null)
{
TreeInstance result = action(treeInstance);
if (chunk != null)
{
for (int i = 0; i < chunk.objects.Count; i++)
{
if (chunk.objects[i].instanceID == treeInstanceID)
{
chunk.objects[i].treeInstance = result; // update tree instance
if (runOnChunk != null)
{
runOnChunk(chunk.objects[i]);
}
break;
}
}
}
}
}
}
}
/// <summary>
/// Restore a certain tree instance from the terrain.
/// </summary>
/// <param name="treeInstanceID">the tree instance id of the tree you wish to restore.</param>
/// <param name="originalHeight">the original height of the targeted tree.</param>
public static void RestoreTreeInstance(this TerrainData terrainData, int treeInstanceID, UNTerrain UNTerrain)
{
TreeInstance treeInstance = terrainData.GetTreeInstance(treeInstanceID);
Sectors.ChunkObject chunkObject;
// Update the sector chunk...
TIChunk chunk = UNTerrain.sector.getChunk(treeInstance.position.LocalToWorld(UNTerrain.terrainData.multiThreaded_terrainDataSize, Vector3.zero), 0) as TIChunk;
if (chunk != null)
{
for (int i = 0; i < chunk.objects.Count; i++)
{
chunkObject = chunk.objects[i];
if (chunkObject.instanceID == treeInstanceID)
{
UNTerrain.Pool.TryResetOnUID(treeInstanceID, true);
treeInstance.heightScale = chunkObject.originalHeight;
terrainData.SetTreeInstance(treeInstanceID, treeInstance);
chunkObject.treeInstance = treeInstance;
UNSeeker seeker;
for (int c = 0; c < UNSeeker.FReceivers.Count; c++)
{
seeker = UNSeeker.FReceivers[c] as UNSeeker;
Targets.UNTarget.CheckTargets(seeker, seeker.seekingDistance); // check targets to verify colliders assigning
}
break;
}
}
}
}
