Start of Game of Life challenge

gistfile1.txt

var prompt = require('prompt');

GameOfLife = {
	input: {},
	grid: [],
	init: function(){
		this.prompt();
	},
	// Prompt for input
	prompt: function(){
		var self = this;
		prompt.start();
		prompt.get(['iterations', 'columns', 'rows'], function (err, result) {
		  if (err) { 
		  	return function(){
		  		console.log(err);
				return 1;
		  	} 
		  }
		  self.input = result;
		  self.setUpWorld();
		  self.initSimulations();
		});
	},
	// Set up the world
	setUpWorld: function(){
		var self = this,
			rows = self.input["rows"],
			columns = self.input["columns"],
			columnArr = [];
		for(var i = 0; i < rows; i++){
			columnArr = []; //reinitialize
			for(var j = 0; j < columns; j++){
				columnArr.push(self.populateCell());
			}
			self.grid.push(columnArr);
		}
	},
	printGrid: function(){
		var self=this;
		for(var i = 0; i<self.grid.length; i++){
			console.log(self.grid[i]);	
		}
		console.log("===========");
	},
	// Initialize the simulations
	initSimulations: function(){
		var self = this;
		self.printGrid();
		for(var i = 0; i<self.input["iterations"]; i++){
			self.gameOfLifeAlgo();
		}
		self.printGrid();
	},
	// Game of Life algorithm goes here!
	gameOfLifeAlgo: function(){
		var self = this,
			row,
			cell,
			obj = {};
		for(var i=0; i<self.grid.length; i++){
			row = self.grid[i];
			obj["prevArr"] = self.grid[i-1];
			obj["nextArr"] = self.grid[i+1];
			for(var j = 0; j< row.length; j++){
				cell = row[j];
				obj["prevItem"] = row[j-1];
				obj["nextIem"] = row[j+1];
				obj["cellPosition"] = j;
				console.log("the cell is: ", cell);
				console.log("the cell is now: ",  self.deadOrAlive(cell,obj));
				self.deadOrAlive(cell,obj)
			}
		}
	},
	// Returns either 0 to denote "dead" or 1 to denote "alive"
	deadOrAlive: function(cell,obj){
		var self = this,
			grid = self.grid,
			liveCount = 0;

		// console.log("========");
		// console.log("the grid is: ", this.grid);
		// console.log("the cell is ", cell);
		// console.log("the object is ", obj);
		
		if(obj["prevItem"] === 1){ liveCount++; }
		if(obj["nextItem"] === 1) {livecount++}
		if(obj["prevArr"] !== undefined){
			if(obj["prevArr"][obj["cellPosition"]-1] === 1) {liveCount++}
			if(obj["prevArr"][obj["cellPosition"]] === 1) {liveCount++}
			if(obj["prevArr"][obj["cellPosition"]+1] === 1) {liveCount++}

		}
		if(obj["nextArr"] !== undefined){			
			if(obj["nextArr"][obj["cellPosition"]-1] === 1) {liveCount++}
			if(obj["nextArr"][obj["cellPosition"]] === 1) {liveCount++}
			if(obj["nextArr"][obj["cellPosition"]+1] === 1) {liveCount++}

		}

		if(cell === 0){ // If cell is dead
			// if it has 3 adjaced live squares, it comes alive
			if(liveCount === 3){
				return 1;
			} else {
				return 0;
			}
		}
		if(cell === 1){ // If cell is alive
			// A live square "dies" if it has less than two live neighbors, or more than three live neighbors
			if(liveCount < 2 || liveCount > 3){
				return 0;
			} else {
				return 1;
			}
		}

	},
	populateCell: function(){
		return Math.floor(Math.random() * (1 - 0 + 1)) + 0;
	}
}

GameOfLife.init();