void SetSetNumbers(MazeNode[] row, ref int prevSetNumber)
{
for (int i = 0; i < row.Length; ++i)
{
int setNumber = prevSetNumber + 1;
MazeNode node = row[i];
node.SetNumber = setNumber;
prevSetNumber++;
}
}
void CreateNodes()
{
nodes = new MazeNode[GridSize.x][];
for (int x = 0; x < GridSize.x; ++x)
{
nodes[x] = new MazeNode[GridSize.y];
for (int y = 0; y < GridSize.y; ++y)
{
nodes[x][y] = CreateNode(new Vector2Int(x, y));
}
}
}
void EqualizeAdjacentCells(MazeNode[] row)
{
for (int i = 1; i < row.Length; ++i)
{
MazeNode node = row[i];
MazeNode previousNode = row[i - 1];
if (node.SetNumber != previousNode.SetNumber && rand.Next(0, 2) == 0)
{
node.SetNumber = previousNode.SetNumber;
previousNode.RemoveMask(MazeNode.WALL_TOP);
node.RemoveMask(MazeNode.WALL_BOTTOM);
}
}
}
void OpenWays(MazeNode[] row)
{
if (row == null)
{
return;
}
var setNumbers = new HashSet <int>();
var openSets = new HashSet <int>();
for (int i = 0; i < row.Length; ++i)
{
MazeNode node = row[i];
setNumbers.Add(node.SetNumber);
if (node.HasWallRight && rand.Next(0, 5) == 0)
{
node.RemoveMask(MazeNode.WALL_RIGHT);
openSets.Add(node.SetNumber);
}
}
foreach (int setNumber in setNumbers)
{
if (openSets.Contains(setNumber))
{
continue;
}
for (int i = 0; i < row.Length; ++i)
{
MazeNode node = row[i];
if (node.SetNumber != setNumber)
{
continue;
}
node.RemoveMask(MazeNode.WALL_RIGHT);
openSets.Add(setNumber);
break;
}
}
}
MazeNode CreateNode(Vector2Int gridPos)
{
Vector3 worldBottomLeft = Position - new Vector3(Size.x / 2, 0, Size.z / 2);
Vector3 worldPos = worldBottomLeft
+ Vector3.right * (gridPos.x * NodeWidth + NodeWidth * 0.5f)
+ Vector3.up * NodeHeight * 0.5f
+ Vector3.forward * (gridPos.y * NodeDepth + NodeDepth * 0.5f);
var node = new MazeNode(game.Prefabs.MazeWall, gridPos, worldPos, new Vector3(NodeWidth, NodeHeight, NodeDepth), MazeNode.WALL_AROUND);
node.Options &= ~MazeNode.WALL_LEFT;
node.Walkable = !UnityEngine.Physics.CheckSphere(worldPos, NodeWidth * 0.5f, ~walkableMask);
return(node);
}
void ApplySetNumbersFromPreviousRow(MazeNode[] row, MazeNode[] previousRow)
{
if (row == null || previousRow == null)
{
return;
}
for (int i = 0; i < previousRow.Length; ++i)
{
MazeNode prevRowNode = previousRow[i];
if (prevRowNode.HasWallRight)
{
continue;
}
row[i].SetNumber = prevRowNode.SetNumber;
row[i].RemoveMask(MazeNode.WALL_LEFT);
}
}
public MazeNode[] GetRowOfNode(MazeNode node) => nodes[node.GridPos.x];