// 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;
}
}
}
}
}
public void RemoveCell(HexCoordinates coordinates)
{
CellStack stack = GetCellStackFromWorldCoords(coordinates);
if (stack)
{
stack.Pop();
GenerateMeshes();
}
}
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();
}
}