public NodeGrid Generate(NodeGrid nodeGrid)
{
// Calculate the number of walls to place
int wallsLeft = (int)Math.Round(nodeGrid.CellCount * _percentFill);
if (_fillTo)
{
wallsLeft -= (_add ? nodeGrid.Walls() : nodeGrid.Empty()).Count();
}
wallsLeft = Mathf.Clamp(wallsLeft, 0, nodeGrid.CellCount);
// Begin adding walls
while (wallsLeft > 0)
{
// Grab a node, skip if already a wall
Node node = nodeGrid.GetRandomNode();
if (_add)
{
if (!node.Walkable)
{
continue;
}
node.Walkable = false;
}
else
{
if (node.Walkable)
{
continue;
}
node.Walkable = true;
}
wallsLeft--;
}
return(nodeGrid);
}
