lol.js

//Define 10x20 grid as the board
var grid = [
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0],
];

//Block shapes
var shapes = {
	I: [[0,0,0,0], [1,1,1,1], [0,0,0,0], [0,0,0,0]],
	J: [[2,0,0], [2,2,2], [0,0,0]],
	L: [[0,0,3], [3,3,3], [0,0,0]],
	O: [[4,4], [4,4]],
	S: [[0,5,5], [5,5,0], [0,0,0]],
	T: [[0,6,0], [6,6,6], [0,0,0]],
	Z: [[7,7,0], [0,7,7], [0,0,0]]
};

//Block colors
var colors = ["F92338", "C973FF", "1C76BC", "FEE356", "53D504", "36E0FF", "F8931D"];

//Used to help create a seeded generated random number for choosing shapes. makes results deterministic (reproducible) for debugging
var rndSeed = 1;

//BLOCK SHAPES
//coordinates and shape parameter of current block we can update
var currentShape = {x: 0, y: 0, shape: undefined};
//store shape of upcoming block
var upcomingShape;
//stores shapes
var bag = [];
//index for shapes in the bag
var bagIndex = 0;

//GAME VALUES
//Game score
var score = 0;
// game speed
var speed = 500;
// boolean for changing game speed
var changeSpeed = false;
//for storing current state, we can load later
var saveState;
//stores current game state
var roundState;
//list of available game speeds
var speeds = [500,100,1,0];
//inded in game speed array
var speedIndex = 0;
//turn ai on or off
var ai = true;
//drawing game vs updating algorithms
var draw = true;
//how many so far?
var movesTaken = 0;
//max number of moves allowed in a generation
var moveLimit = 500;
//consists of move the 7 move parameters
var moveAlgorithm = {};
//set to highest rate move 
var inspectMoveSelection = false;


//GENETIC ALGORITHM VALUES
//stores number of genomes, init at 50 
var populationSize = 50;
//stores genomes
var genomes = [];
//index of current genome in genomes array
var currentGenome = -1;
//generation number
var generation = 0;
//stores values for a generation
var archive = {
	populationSize: 0,
	currentGeneration: 0,
	elites: [],
	genomes: []
};
//rate of mutation
var mutationRate = 0.05;
//helps calculate mutation
var mutationStep = 0.2;


//main function, called on load
function initialize() {
	//init pop size
	archive.populationSize = populationSize;
	//get the next available shape from the bag
	nextShape();
	//applies the shape to the grid
	applyShape();
	//set both save state and current state from the game
	saveState = getState();
	roundState = getState();
	//create an initial population of genomes
	createInitialPopulation();
	//the game loop
	var loop = function(){
		//boolean for changing game speed
		if (changeSpeed) {
			//restart the clock
			//stop time
			clearInterval(interval);
			//set time, like a digital watch
			interval = setInterval(loop, speed);
			//and don't change it
			changeInterval = false;
		}
		if (speed === 0) {
			//no need to draw on screen elements
			draw = false;
			//updates the game (update fitness, make a move, evaluate next move)
			update();
			update();
			update();
		} else {
			//draw the elements
			draw = true;
		}
		//update regardless
		update();
		if (speed === 0) {
			//now draw elements
			draw = true;
			//now update the score
			updateScore();
		}
	};
	//timer interval
	var interval = setInterval(loop, speed);
}
document.onLoad = initialize();