/// <summary>
/// Find the terrain texture index at the given position.
/// This considers all terrains in the group of the active terrain
/// </summary>
/// <param name="worldPosition"></param>
/// <returns>The layer index or -1 if none found at the world position</returns>
public int GetTerrainLayerIndex(Vector3 worldPosition)
{
Vector3 terrainCord = new Vector3();
Terrain terrain = Terrain.activeTerrain;
bool ok = ConvertToSplatMapCoordinate(worldPosition, ref terrainCord, ref terrain);
if (!ok)
{
return(-1);
}
int activeTerrainIndex = 0;
float largestOpacity = 0f;
TerrainRecord record = map[terrain];
for (int i = 0; i < record.numTextures; i++)
{
if (largestOpacity < record.splatmapData[(int)terrainCord.z, (int)terrainCord.x, i])
{
activeTerrainIndex = i;
largestOpacity = record.splatmapData[(int)terrainCord.z, (int)terrainCord.x, i];
}
}
return(activeTerrainIndex);
}
public TerrainManager()
{
// get all terrains in group
terrainGroup = TerrainUtilities.GetTerrainsInGroup();
// create record of all terrains
foreach (Terrain terrain in terrainGroup)
{
TerrainRecord record = new TerrainRecord(terrain);
map.Add(terrain, record);
}
}
IEnumerator AddTerrainCoroutine(int col, int row)
{
mTerrainNum++;
GetTerrainName(col, row);
#if LOAD_ADDITIVE_ASYNC
TerrainIndex tr = new TerrainIndex();
tr.col = col;
tr.row = row;
sTerrainRecords.Add(tr);
TerrainAttachment ta = new TerrainAttachment();
ta.attachments = new List <GameObject>(4);
mTerrainAttachments.Add(ta);
lock ( sTerrainTasks )
{
TerrainTask tt = new TerrainTask();
tt.col = col;
tt.row = row;
tt.terrainName = terrainName.ToString();
sTerrainTasks.Add(tt);
}
AsyncOperation async = Application.LoadLevelAdditiveAsync(sceneName.ToString());
yield return(async);
#else
float z = (col > 0 ? col - 1 : col) * TILE_SIZE;
float x = -(row < 0 ? row + 1 : row) * TILE_SIZE;
// for memory limitation, don't cache anything.
Object t = Resources.Load(terrainName.ToString()); // the prefab has been deleted from project by me, so it won't work here.
TerrainRecord tr = new TerrainRecord();
tr.col = col;
tr.row = row;
sTerrainRecords.Add(tr);
TerrainAttachment ta = new TerrainAttachment();
yield return(ta.terrain = Instantiate(t, new Vector3(x, 0, z), Quaternion.identity));
ta.attachments = new List <GameObject>(4);
t = null;
mTerrainAttachments.Add(ta);
#endif
}
