WorldCellWithTerrain Class

public class WorldCellWithTerrain : WorldCell

Represents a WorldCell with a single Unity Terrain Asset Chunk. This type is created automatically in place of the base World Cell class when a World Cell's active LOD is associated with an LOD Group that uses the Unity Terrain Chunk Type.

While there are some methods available in this class, we generally advise not calling these methods yourself, as SAM automates Terrain Neighboring so that calling the methods is not necessary.

You may have a need to access the Terrain component of the World Cell however, from a custom World Grouping Listener, for instance. In that case, you can access the Terrain via the Terrain property.

Properties

Name Type Description
Terrain Terrain

Gets the Terrain associted with this WorldCellWithTerrain.

Methods

ClearNeighborsAndTerrain()

public void ClearNeighborsAndTerrain()

Calls Terrain.SetNeighbors(null, null, null, null) and sets the internal terrain reference of this World Cell to null.

Generally speaking, the Streamable Asset Manager will call this method automatically at the appropriate time; you shouldn't need to call it yourself and should only do so if you absolutely understand the consequences and know what you are doing!


GetTerrainIfPartOfSameTerrainGroup(WorldCell)

public Terrain GetTerrainIfPartOfSameTerrainGroup(WorldCell worldCell)

Checks the input World Cell to see if it is a WorldCellWithTerrain and part of the same Terrain Group (meaning they have the same Grouping ID) as this WorldCellWithTerrain.

If it is, this method returns the Terrain associated with it, otherwise it returns null.

You can use this for ease of checking if two World Cells that neighbor each other have Terrain from the same group, as you can just pass in the neighbor of the cell by using the EastNeighbor, WestNeighbor, etc. properties.

If you just want to get the terrain of another cell (or neighbor) on the same World Grouping of this cell, and don't care whether it is part of the same terrain group as this cell, you can cast the neighbor to a WorldCellWithTerrain using the WorldCellWithTerrain cellWithTerrain = cell as WorldCellWithTerrain line of code.

Then check if the cellWithTerrain value is null. If is not, the cell should have a terrain, though do note that if it is a newly loaded cell, it may not have a terrain yet, depending on when you perform this check. Please check the WorldGroupingListener page for more information!

Parameters

Name Type Description
worldCell WorldCell

The WorldCell that might or might not be part of the same terrain group as this WorldCellWithTerrain.

Returns

Terrain
The terrain if the cell is part of the same terrain group (meaning they have the same Grouping ID). If the input cell is null or not a WorldCellWithTerrain, this method will return null.


IsPartOfSameTerrainGroup(WorldCell)

public bool IsPartOfSameTerrainGroup(WorldCell worldCell)

Checks the input World Cell to see if it is part of the same Terrain Group as this WorldCellWithTerrain. If it is, this method returns true, otherwise it returns false. You can use this for ease of checking if two World Cells that neighbor each other have Terrain from the same group, as you can just pass in the neighbor of the cell by using the EastNeighbor, WestNeighbor, etc. properties. If you need the actual terrain associated with the World Cell, use GetTerrainIfPartOfSameTerrainGroup instead, as it performs the same check (thus, calling it after this method would add redundancy).

If you just want to know whether a neighbor has a terrain and don't care whether it is part of the same terrain group as this cell, you can cast the neighbor to a WorldCellWithTerrain using the WorldCellWithTerrain cellWithTerrain = cell as WorldCellWithTerrain line of code. Then check if the cellWithTerrain value is null. If is not, the cell should have a terrain, though do note that if it is a newly loaded cell, it may not have a terrain yet, depending on when you perform this check. Please check the World Update Cycle page for more information!

Parameters

Name Type Description
worldCell WorldCell

The WorldCell that might or might not be part of the same terrain group as this WorldCellWithTerrain.

Returns

bool
True if the cell is part of the same terrain group. If the input cell is null or not a WorldCellWithTerrain, this method will return false. Additionally, the cells must have the same grouping ID or the method will return false.


ResetNeighbors()

public void ResetNeighbors()

Checks each World Cell Neighbor of this World Cell and gets a terrain for each if the neighbor is a valid terrain neighbor. Then calls Terrain.SetNeighbors using each terrain neighbor as input. Generally speaking, the Streamable Asset Manager will call this method automatically at the appropriate time; you shouldn't need to call it yourself and should only do so if you absolutely understand the consequences and know what you are doing!