VoxelWrite Cave Generator

var caveBlockColor = 0x6E6E6E; //Sets the color of the block to generate, in this case grey
var caveRadiusMin = 2; //The minimum radius of a section of cave
var caveRadiusMax = 4; //The maximum radius of a section of cave
var volatility1 = 4; //Determines the randomness of the cave
var volatility2 = 2; //Determines the randomness of the cave
var caveLength = 100; //The maximum length of the cave
var caveStartX = 0; //The x-coord to start generating at.
var caveStartY = 0; //The y-coord to start generating at.
var caveStartZ = 0; //The z-coord to start generating at.
var flatCave = false; //If true the cave's z axis will not be adjusted
var passes = 2; //How many passes to perform.  Each pass generates a separate cave.
var randomizeVolatility = true; //If true to volatility is randomised as the cave is generated.

passes = Math.abs(passes);
caveLength = Math.abs(caveLength);

var x = caveStartX;
var y = caveStartY;
var z = caveStartZ;
var radius = random(caveRadiusMin,caveRadiusMax);
var length = 0;
var xAngle = random(-1*altVolatility,altVolatility);
var yAngle = random(-1*altVolatility,altVolatility);
var zAngle = random(-1*altVolatility,altVolatility);
var currAngleDistance = 1;
var currPasses = 0;
var caveVolatility = volatility1;
var altVolatility = volatility2;

while (currPasses < passes){
    if(randomizeVolatility){
        caveVolatility += random(-1,1);
        altVolatility += random(-1,1);
    }
    x = caveStartX;
    y = caveStartY;
    z = caveStartZ;
    radius = random(caveRadiusMin,caveRadiusMax);
    length = 0;
    xAngle = random(-1*altVolatility,altVolatility);
    yAngle = random(-1*altVolatility,altVolatility);
    zAngle = random(-1*altVolatility,altVolatility);
    currAngleDistance = 1;
    while (length<caveLength){
        caveVolatility = Math.min(radius, volatility1);
        altVolatility = Math.min(radius, volatility2);

        gProject.putBlocks(ball(x,y,z,radius,caveBlockColor));
        if(currAngleDistance>0){
            x += xAngle;
            y += yAngle;
            if(!flatCave){
                z = Math.max(z + zAngle, radius + 1);
            }else{
                z = radius+caveStartZ;
            }
            currAngleDistance--;
            length++;
            radius = random(caveRadiusMin,caveRadiusMax);
        }else{
            currAngleDistance = random(1, Math.abs(caveVolatility - radius));
            xAngle = random(-1*altVolatility,altVolatility);
            yAngle = random(-1*altVolatility,altVolatility);
            if(z>currAngleDistance){
                zAngle = random(-1*altVolatility,altVolatility);
            }else{
                zAngle = 1;
            }
        }
    }
    currPasses++;
}
function random(min, max){
    return Math.round(Math.random() * (max - min)) + min;
}

cullProjectOccludedBlocks();
gEditor.requestRender();