Flying inside 3D Perlin Cave

An article by mgear    9 Comments

Never-ending perlin caves to explore!

Current features:
– Unlimited cave flying
– Plasma(?) cannon
– Moving around with keys (wasd/arrow keys)
– Shooting with mousebutton
– 1 stone material
– added: light source, shooting sound, block destruction, basic collision detection for movement (not for player destruction yet)

I’m thinking something like this, maybe another version with the cave in 2.5D and view from side:
Scramble C64 (Play Online: http://c64s.com/game/689/scramble/ | Video: http://www.youtube.com/watch?v=qqBVDX3xy0M )

Webplayer:
http://unitycoder.com/upload/demos/UnlimitedPerlinCaves3D1/

PerlinCaveTile.cs (attach this to empty game object, then assign the block prefab to it

using UnityEngine;
using System.Collections;

public class PerlinCaveTiles : MonoBehaviour {

public int width=16;
public int height=16;

public float fireRate = 0.5f;
private float nextFire = 0.0f;

public float noiseScale=11.5f;
public float depthNoiseScale=1.0f;
private float z=0.0f;
//    private float worldy=0.0f;

private float value;
public float holeThreshHold=0.2f;

public GameObject block; // default block

private Perlin perlin;
Perlin p = new Perlin();

// Use this for initialization
void Start ()
{

}

// Update is called once per frame
void Update ()
{
if (Time.time > nextFire)
{
CreateChunk();
nextFire = Time.time + fireRate;
}
}

void CreateChunk()
{
// generate initial map`/wall?
// create map array
//var n:int=0;

for (int y = 0;y<height;y++)
{
Instantiate(block, transform.position+new Vector3(0,y,0), transform.rotation);
Instantiate(block, transform.position+new Vector3(width,y,0), transform.rotation);
}

for (int x = 0;x<width;x++)
{
Instantiate(block, transform.position+new Vector3(x,0,0), transform.rotation);
Instantiate(block, transform.position+new Vector3(x,height,0), transform.rotation);
}

for (int y = 1;y<height;y++)
{
for (int x = 1;x<width;x++)
{

value = p.Noise(x*noiseScale,y*noiseScale,z*depthNoiseScale); // default

if (value>holeThreshHold)
{

Instantiate(block, transform.position+new Vector3(x,y,0), transform.rotation);

}

}

}

z++;

}

}

BlockMover.cs (temporary script for moving the blocks.. attach to block prefab)

using UnityEngine;
using System.Collections;

public class BlockMover : MonoBehaviour {

float speed = 3;

// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {
transform.Translate(-Vector3.forward*speed*Time.deltaTime, Space.World);

if (transform.position.z < -17)
{
Destroy (gameObject);
}

}
}