Pyramid.js

function Pyramid(descr){
    for(var prop in descr){
	this[prop] = descr[prop];
    }
    this.total = 0;
    this.visited = 0;
    this.init();
};



Pyramid.prototype.render = function(gl,transformMatrix){
    if(!transformMatrix){
        var transformMatrix = mat4.identity(mat4.create());
    };
    
    for (var i = 0; i < this.cubes.length; i++) {
        for (var j = 0; j < this.cubes.length; j++) {
            if (this.cubes[i][j]) {
                this.cubes[i][j].render(gl,transformMatrix);
            }
        }
    }
};

Pyramid.prototype.visit = function(x,y) {
    var cube = this.getCube(x,y);
    if (cube && !cube.isVisited){
        cube.markVisited();
	this.visited += 1;
    }
};

Pyramid.prototype.unVisit = function(x,y) {
    var cube = this.getCube(x,y);
    if (cube && cube.isVisited){
        cube.markUnVisited();
	    this.visited -= 1;
    }
};


Pyramid.prototype.markVisit = function(x,y){
    this.cubes[this.height+x][this.height+y].markVisited();
};

Pyramid.prototype.isVisited = function(x,y) {
    var cube = this.getCube(x,y);
    if (cube) return cube.isVisited;
    return false;
};

Pyramid.prototype.hasWon = function() {
    /*
    for (var i = 0; i < this.cubes.length; i++) {
        for (var j = 0; j < this.cubes.length; j++) {
            if (this.cubes[i][j] && !this.cubes[i][j].isVisited) {
                return false;
            }
        }
    }
     */
    return this.visited === this.total;
};

Pyramid.prototype.getCube = function(x,y) {
    if (!this.cubes[x+this.height-1])
        return null;
    return this.cubes[x+this.height-1][y+this.height-1];
};

Pyramid.prototype.isOutOfBounds = function(x,y) {
    return manhattanDist(Math.round(x), Math.round(y))  >= this.height;
};
Pyramid.prototype.reset = function(){
    this.total = 0;
    this.visited = 0;
    var length = 2*this.height - 1;
    for (var i = 0; i < length+1; i++) {
        for (var j = 0; j < length+1; j++) {
            if (this.manhattanDist(i,j) < this.height) {
		this.total += 1;
		this.cubes[i][j].markUnVisited();
	    }
	}
    }
    this.visit(0,0);
};



Pyramid.prototype.init = function() {
    this.protoCube = this.protoCube || new Cube({"textureSrc": "cardboard.png"});
    //this.protoCube =  new Cube();
    this.height = this.height || 4;
    this.cubes = [];
    var length = 2*this.height - 1;
    for (var i = 0; i < length+1; i++) {
        this.cubes[i] = [];
        for (var j = 0; j < length+1; j++) {
            if (this.manhattanDist(i,j) < this.height) {
                this.cubes[i][j] = this.protoCube.modelCopy();
                this.cubes[i][j].scale([0.5,0.5,0.5]);
                this.cubes[i][j].translate([i-this.height+1, -this.manhattanDist(i,j), j-this.height+1]);
            }
        }
    }
    this.reset();
};


Pyramid.prototype.manhattanDist = function(x,y) {
    return Math.abs(this.height-x-1) + Math.abs(this.height-y-1);
};