koobas.hobune.stream
How to randomly create a tile based maze
I currently have code that opens up all of the doors on my prefabs for rooms/tiles that are not on the edges of my randomly generated map. I would like to modify this code so that not all of the doors are open and it is more of a randomly generated maze. I want every room to be accessible and it is possible to have more than one path through the maze/game world. How can I change my code so it works in this matter? Below is my current code that I want to modify.
using UnityEngine;
public class Room : MonoBehaviour {
public GameObject doorNorth;
public GameObject doorSouth;
public GameObject doorEast;
public GameObject doorWest;
}
using UnityEngine;
using System;
public class mapGenerator : MonoBehaviour {
public int rows;
public int cols;
public GameObject[] gridPrefabs;
private float roomWidth = 50.0f;
private float roomHeight = 50.0f;
public Room[,] grid;//used to keep track of rooms created ,uses two numbers to refer to it in memory
public bool isMapOfDay;
public bool isRandomMap;
public int chosenSeed;
// Use this for initialization
void Start () {
chosenSeed = GameManager.instance.mapSeed;
rows = GameManager.instance.mapRows;
cols = GameManager.instance.mapColumns;
isMapOfDay = GameManager.instance.useMapOfDay;
isRandomMap = GameManager.instance.useRandomMap;
gridPrefabs = GameManager.instance.mapTiles;
}
public GameObject RandomRoomPrefab()//Returns a random room
{
return gridPrefabs [UnityEngine.Random.Range (0, gridPrefabs.Length)];
}
public void GenerateGrid()//used to generate map grid
{
if (isRandomMap == true && isMapOfDay == false) {//sets map to random map based on time
UnityEngine.Random.InitState(DateToInt(DateTime.Now));//sets "random" seed to current time
} else if (isRandomMap == false && isMapOfDay == true) {//sets map to map of day based on numbers in day
UnityEngine.Random.InitState(DateToInt (DateTime.Now.Date));
} else {//if both are selected just use random map
UnityEngine.Random.InitState(DateToInt (DateTime.Now));
}
if (chosenSeed != 0) {//if a specific seed is entered in game manager use this instead
UnityEngine.Random.InitState(chosenSeed);
}
//Clear out the grid
grid = new Room[cols, rows];
GameManager.instance.mapGrid = grid;
//For each grid row...
for (int i=0; i<rows; i++)
{
//for each column in that row
for (int j=0; j<cols; j++)
{
//Figure out the location
float xPosition = roomWidth * j;
float zPosition = roomHeight * i;
Vector3 newPosition = new Vector3 (xPosition, 0.0f, zPosition);
//create a new grid at appropiate location
GameObject tempRoomObj = Instantiate (RandomRoomPrefab (), newPosition, Quaternion.identity)as GameObject;
//set its parent
tempRoomObj.transform.parent = this.transform;
//give the temp room a meaningful name
tempRoomObj.name = "Room_" + j + "," + i;
//Get the room object
Room tempRoom = tempRoomObj.GetComponent<Room> ();
//open doors as needed
if (i == 0) {
//open north doors if on bottom row
tempRoom.doorNorth.SetActive (false);
} else if (i == rows - 1) {
//Otherwise, if doors are on the top row open south doors
tempRoom.doorSouth.SetActive (false);
} else {
//otherwise, this row is in the middle so both north and south open
tempRoom.doorNorth.SetActive (false);
tempRoom.doorSouth.SetActive (false);
}
if (j == 0) {
//if first column then east doors are opened
tempRoom.doorEast.SetActive (false);
} else if (j == cols - 1) {
//Otheriwse, if one last column row open west doors
tempRoom.doorWest.SetActive (false);
} else {
//otherwise, we are in middle so both west and east are opened
tempRoom.doorEast.SetActive (false);
tempRoom.doorWest.SetActive (false);
}
//save it to the grid array
grid [j, i] = tempRoom;//
GameManager.instance.mapGrid=grid;
}
}
}
public int DateToInt(DateTime dateToUse)//adds date and time up and returns it as an int
{
int dateToReturn = dateToUse.Year + dateToUse.Month + dateToUse.Day + dateToUse.Hour +dateToUse.Minute + dateToUse.Second + dateToUse.Millisecond;
return dateToReturn;
}
public void clear()//clears grid
{
for (int c=0; c<GameManager.instance.mapGrid.GetLength(0); c++) {
for (int r=0; r<GameManager.instance.mapGrid.GetLength(1); r++) {
if(GameManager.instance.mapGrid[c,r]!=null)//if not null destroy
{
Destroy(GameManager.instance.mapGrid[c,r].gameObject);
}
}
}
}
}
I believe the change needs to happen in my else statements but I'm not exactly sure how to go about this as I have never made a maze before. Thanks for the help!
