public override void OnSceneGUI(Terrain terrain, IOnSceneGUI editContext)
{
if ((Event.current.type == EventType.MouseUp || Event.current.type == EventType.MouseDown) &&
(Event.current.button == 2 || Event.current.alt) ||
terrain.terrainData == null)
{
return;
}
Quaternion rot = new Quaternion();
rot.eulerAngles = new Vector3(90, 00, 0);
Handles.color = new Color(0.9f, 1.0f, 0.8f, 1.0f);
Vector3 size = terrain.terrainData.size;
TerrainMap mapGroup = TerrainMap.CreateFromPlacement(terrain);
if (mapGroup == null)
{
return;
}
foreach (TerrainTileCoord coord in mapGroup.terrainTiles.Keys)
{
int x = coord.tileX;
int y = coord.tileZ;
Terrain t = mapGroup.GetTerrain(x, y);
if (t == null)
{
continue;
}
Terrain left = mapGroup.GetTerrain(x - 1, y);
Terrain right = mapGroup.GetTerrain(x + 1, y);
Terrain top = mapGroup.GetTerrain(x, y + 1);
Terrain bottom = mapGroup.GetTerrain(x, y - 1);
Vector3 pos = t.transform.position + 0.5f * new Vector3(size.x, 0, size.z);
if ((bottom == null) && Handles.Button(pos + new Vector3(0, 0, -size.z), rot, 0.5f * size.x, 0.5f * size.x, Handles.RectangleHandleCapWorldSpace))
{
CreateNeighbor(terrain, t.transform.position + Vector3.back * size.z);
}
if ((top == null) && Handles.Button(pos + new Vector3(0, 0, size.z), rot, 0.5f * size.x, 0.5f * size.x, Handles.RectangleHandleCapWorldSpace))
{
CreateNeighbor(terrain, t.transform.position + Vector3.forward * size.z);
}
if ((right == null) && Handles.Button(pos + new Vector3(size.x, 0, 0), rot, 0.5f * size.x, 0.5f * size.x, Handles.RectangleHandleCapWorldSpace))
{
CreateNeighbor(terrain, t.transform.position + Vector3.right * size.x);
}
if ((left == null) && Handles.Button(pos + new Vector3(-size.x, 0, 0), rot, 0.5f * size.x, 0.5f * size.x, Handles.RectangleHandleCapWorldSpace))
{
CreateNeighbor(terrain, t.transform.position + Vector3.left * size.x);
}
}
}
internal static TerrainGroups CollectTerrains(bool onlyAutoConnectedTerrains = true)
{
if (!HasValidTerrains())
{
return(null);
}
// Collect by groups
TerrainGroups TerrainGroups = new TerrainGroups();
foreach (Terrain t in Terrain.activeTerrains)
{
if (onlyAutoConnectedTerrains && !t.allowAutoConnect)
{
continue;
}
if (!TerrainGroups.ContainsKey(t.groupingID))
{
TerrainMap map = TerrainMap.CreateFromPlacement(t, (x => (x.groupingID == t.groupingID) && !(onlyAutoConnectedTerrains && !x.allowAutoConnect)));
if (map != null)
{
TerrainGroups.Add(t.groupingID, map);
}
}
}
return((TerrainGroups.Count != 0) ? TerrainGroups : null);
}
public static Terrain[] GetTerrainsInGroup(Terrain terrain)
{
TerrainMap terrainMap = TerrainMap.CreateFromPlacement(terrain, null, false);
Terrain[] terrainGroup = terrainMap.terrainTiles.Select(o => o.Value).ToArray();
return(terrainGroup);
}
