> For the complete documentation index, see [llms.txt](https://giantgrey.gitbook.io/tileworldcreator-v4-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://giantgrey.gitbook.io/tileworldcreator-v4-documentation/api.md).
# API
## TileWorldCreatorManager class
AddCellsToLayer
```csharp
AddCellsToLayer(string _layerName, HashSet _cellPositions)
```
Add cells to a blueprint layer.
AddCellsToLayerByGuid
```csharp
AddCellsToLayerByGuid(string _layerGuid, HashSet _cellPositions)
```
Add cells to a blueprint layer by its layer guid.
RemoveCellsFromLayer
```csharp
RemoveCellsFromLayer(string _layerName, HashSet _cellPositions)
```
Remove cells from a blueprint layer.
ResetMap
```csharp
ResetMap()
```
Resets all blueprint layers (painted cells) and build layers.\
Should be used when using TWC at runtime on Start / Initialization before generating a new map.
ClearLayer
```csharp
ClearLayer(string _layerName)
```
Clear all cell positions from a blueprint layer.
FillLayer
```csharp
FillLayer(string _layerName)
```
Fill all cells from a blueprint layer.
GenerateCompleteMap
```csharp
GenerateCompleteMap()
```
Generates a complete map. Executes blueprint layer stack and build layer stack.
ExecuteBlueprintLayers
```csharp
ExecuteAllBlueprintLayers()
```
Executes blueprint layer stack.
ExecuteBuildLayers
```csharp
ExecuteAllBuildLayers(ExecutionMode)
```
Executes build layer stack. \ ExecutionMode:\ **Normal**: Only rebuilds changes.\ **FromScratch**: Rebuilds complete map.
GetBlueprintLayer
```csharp
GetBlueprintLayer(string _layerName)
```
Returns a BueprintLayer object.
GetBuildLayer
```csharp
GetBuildLayer(string _layerName)
```
Returns a build layer object.
GetBuildLayerByGuid
```csharp
GetBuildLayerByGuid(string _layerGuid)
```
Returns a BuildLayer object.
GetRelativeGridPosition
```csharp
GetRelativeGridPosition(Vector3 _worldPosition)
```
Convert world position to grid position relative to the TileWorldCreator Manager transforms. Can be used in combination with **IsRelativePositionOverGrid**.
IsRelativePositionOverGrid
```csharp
IsRelativePositionOverGrid(Vector2 _relativePosition)
```
Returns true or false if position is over grid.
SetBlueprintLayerActiveState
```csharp
SetBlueprintLayerActiveState(string _layerName, bool _state)
```
Enable or disable a blueprint layer.
SetBuildLayerActiveState
```csharp
SetBuildLayerActiveState(string _layerName, bool _state)
```
Enable or disable a blueprint layer
GetCellPositionsInRadius
```csharp
HashSet GetCellPositionsInRadius(string layerName, Vector3 position, float radius)
```
Returns a HashSet\ of all blueprint cell positions within radius from position.
GetBuildLayerTileDataFromPosition
```csharp
BuildLayer.TileData GetBuildLayerTileDataFromPosition(string _buildLayerName, Vector2 _position)
```
Returns a TileData object from position.