// Converts the top cell to sand if certain criteria are met
// This modifies terrain based on neighbor stacks
// Thus it should only be called after all cell stacks are generated
void AddSand(CellStack cellStack)
{
if (cellStack.Count() == terrain.waterLevel)
{
HexCoordinates[] neighbors = cellStack.coordinates.GetNeighbors();
for (int i = 0; i < 6; i++)
{
CellStack neighbor = GetCellStackFromWorldCoords(neighbors[i]);
// The neighbor cell stack might not be in this chunk
if (neighbor == null)
{
TerrainChunk neighborChunk = terrain.GetChunkFromWorldCoords(neighbors[i]);
if (neighborChunk != null)
{
neighbor = neighborChunk.GetCellStackFromWorldCoords(neighbors[i]);
}
}
if (neighbor != null)
{
if (neighbor.Count() < terrain.waterLevel)
{
cellStack.Pop();
cellStack.Push(CellType.Sand);
break;
}
}
}
}
}
CellStack CreateCellStack(int x, int z, int height)
{
CellStack cellStack = ScriptableObject.CreateInstance <CellStack>();
HexCoordinates coords = HexCoordinates.FromOffsetCoordinates(x + (int)offsetOrigin.x, z + (int)offsetOrigin.y);
Vector2Int indexWithinChunk = new Vector2Int(x % size, z % size);
cellStack.Init(coords, indexWithinChunk);
cellStack.Push(CellType.Bedrock);
int numStoneTiles = (int)(height * terrain.stoneHeightPercentage);
// Generate terrian based on stack height
for (int i = 0; i < height; i++)
{
CellType newCell;
if (height >= terrain.waterLevel - 1 && i == height - 1)
{
newCell = CellType.Grass;
}
else if (i < numStoneTiles)
{
newCell = CellType.Stone;
}
else
{
newCell = CellType.Dirt;
}
cellStack.Push(newCell);
}
if (showCoordinates && gridCanvas != null)
{
Vector3 position = cellStack.coordinates.ToChunkPosition();
position += HexMetrics.heightVector * (cellStack.Count() + 1);
Text label = Instantiate <Text>(terrain.cellLabelPrefab);
label.rectTransform.SetParent(gridCanvas.transform, false);
label.rectTransform.anchoredPosition3D = new Vector3(position.x, position.z, -position.y);
label.text = cellStack.coordinates.ToStringOnSeparateLines();
}
return(cellStack);
}
public void AddCell(CellType cell, HexCoordinates coords)
{
CellStack stack = GetCellStackFromWorldCoords(coords);
if (stack)
{
// Only trees can be placed on top of grass
// So if something else is placed on top of grass, turn the grass into dirt
if (stack.Peek() == CellType.Grass)
{
stack.Pop();
stack.Push(CellType.Dirt);
}
stack.Push(cell);
GenerateMeshes();
}
}