colorGame.js

var numSquares = 6;
var colors = [];
var pickedColor;
var squares = document.querySelectorAll(".square");
var colorDisplay = document.getElementById("colorDisplay");
var messageDisplay = document.querySelector("#message");
var h1 = document.querySelector("h1");
var resetButton = document.querySelector("#reset");
var modeButtons = document.querySelectorAll(".mode");

init();

function init() {
	//mode button event listeners
	setupModeButtons();
	setupSquares();
	reset();
}

function setupModeButtons() {
	for(var i = 0; i < modeButtons.length; i++) {
		modeButtons[i].addEventListener("click",function() {
			modeButtons[0].classList.remove(".selected");
			modeButtons[1].classList.remove(".selected");
			this.classList.add("selected");
			this.textContent === "Easy" ? numSquares = 3: numSquares = 6;
			// if (this.textContent === "Easy") {
			// 	numSquares = 3;
			// } else {
			// 	numSquares = 6;
			// }
			reset();
		});
	}
}

function setupSquares() {
	for(var i = 0; i < squares.length; i++){
		//add click listeners to squares
		squares[i].addEventListener("click", function() {
			//grab color of clicked square
			var clickedColor = this.style.backgroundColor;
			//compare color to pickedColor
			if (clickedColor === pickedColor) {
				messageDisplay.textContent = "Correct!";
				resetButton.textContent = "Play Again?";
				changeColors(clickedColor);
				h1.style.backgroundColor = clickedColor;
			} else {
				this.style.backgroundColor = "#232323";
				messageDisplay.textContent = "Try Again";
			}
		});
	}
}

function reset() {
	//generate all new colors
	colors = generateRandomColors(numSquares);
	//pick a new random color from array
	pickedColor = pickColor();
	//change color Display to match picked color
	colorDisplay.textContent = pickedColor;
	//change text back to "new colors"
	resetButton.textContent = "New Colors";
	//messageDisplay should go back to an empty string
	messageDisplay.textContent = "";
	//change colors of squares
	for(var i = 0; i < squares.length; i++){
		if (colors[i]) {
			//show the colors
			squares[i].style.display = "block";
			//add initial colors to squares
			squares[i].style.backgroundColor = colors[i];
		} else {
			squares[i].style.display = "none";
		}
	}
	h1.style.backgroundColor = "steelblue";
}

resetButton.addEventListener("click", function() {
	reset();
});

function changeColors(color) {
	//loop through all squares
	for(var i =0; i < squares.length; i++) {
		//change each color to match each color
		squares[i].style.backgroundColor = color;
	}
}

function pickColor() {
	var random = Math.floor(Math.random() * colors.length);
	return colors[random];
}

function generateRandomColors(num) {
	//make an array
	var arr = [];
	//repeat num times
	for(var i = 0; i < num; i++) {
		//get random color and push into array
		arr.push(randomColor());
	}
	//return that arrsy
	return arr;
}

function randomColor(){
	//pick a "red" from 0 - 255;
	var r = Math.floor(Math.random() * 256);
	//pick a "green" from 0 - 255;
	var g = Math.floor(Math.random() * 256);
	//pick a "blue" from 0 - 255;
	var b = Math.floor(Math.random() * 256);

	return "rgb(" + r + ", " + g + ", " + b + ")";
}