109 lines
2.5 KiB
C#
109 lines
2.5 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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public class Wilsons : Maze
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{
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List<MapLocation> notUsed = new List<MapLocation>();
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public override void Generate()
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{
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//create a starting cell
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int x = Random.Range(2, width - 1);
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int z = Random.Range(2, depth - 1);
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map[x, z] = 2;
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while(GetAvailableCells() > 1)
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RandomWalk();
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}
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int CountSquareMazeNeighbours(int x, int z)
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{
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int count = 0;
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for (int d = 0; d < directions.Count; d++)
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{
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int nx = x + directions[d].x;
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int nz = z + directions[d].z;
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if (map[nx, nz] == 2)
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{
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count++;
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}
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}
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return count;
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}
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int GetAvailableCells()
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{
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notUsed.Clear();
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for (int z = 1; z < depth - 1; z++)
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for (int x = 1; x < width - 1; x++)
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{
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if (CountSquareMazeNeighbours(x, z) == 0)
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{
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notUsed.Add(new MapLocation(x, z));
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}
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}
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return notUsed.Count;
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}
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void RandomWalk()
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{
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List<MapLocation> inWalk = new List<MapLocation>();
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int cx;
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int cz;
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int rstartIndex = Random.Range(0, notUsed.Count);
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cx = notUsed[rstartIndex].x;
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cz = notUsed[rstartIndex].z;
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inWalk.Add(new MapLocation(cx, cz));
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int loop = 0;
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bool validPath = false;
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while (cx > 0 && cx < width - 1 && cz > 0 && cz < depth - 1 && loop < 5000 && !validPath)
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{
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map[cx, cz] = 0;
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if (CountSquareMazeNeighbours(cx, cz) > 1)
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break;
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int rd = Random.Range(0, directions.Count);
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int nx = cx + directions[rd].x;
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int nz = cz + directions[rd].z;
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if (CountSquareNeighbours(nx, nz) < 2)
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{
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cx = nx;
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cz = nz;
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inWalk.Add(new MapLocation(cx, cz));
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}
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validPath = CountSquareMazeNeighbours(cx, cz) == 1;
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loop++;
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}
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if (validPath)
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{
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map[cx, cz] = 0;
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Debug.Log("PathFound");
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foreach (MapLocation m in inWalk)
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{
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map[m.x, m.z] = 2;
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}
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inWalk.Clear();
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}
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else
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{
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foreach (MapLocation m in inWalk)
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map[m.x, m.z] = 1;
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inWalk.Clear();
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}
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}
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}
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