rgbGuesser.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();

// initialization function to run when page loads
function init(){
	setModeButtons();
	setSquares();
	reset();
}

function reset(){
	// generate new colors
	colors = generateRandomColors(numSquares);
	//pick new color
	pickedColor = pickColor();
	colorDisplay.textContent = pickedColor;
	messageDisplay.textContent = "";
	resetButton.textContent = "Neue Farben";
	// change square colors
	for (var i = 0; i < squares.length; i++){
		if (colors[i]){
			squares[i].style.display = "block";
			squares[i].style.backgroundColor = colors[i];
		} else {
			squares[i].style.display = "none";
		}
	}
	h1.style.backgroundColor = "steelblue";
}

function setModeButtons(){
	// mode buttons event listeners
	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");
			if (this.textContent === "Easy"){
				numSquares = 3;
			} else {
				numSquares = 6;
			}
			reset();
		});
	}
}

function setSquares(){
	// square event listeners
	for (var i = 0; i < squares.length; i++){
		// add event listeners to each square
		squares[i].addEventListener("click", function(){
			// grab color of clicked square
			var clickedColor = this.style.backgroundColor;
			//compare to pickerColor
			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";
			}
		});
	}
}

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

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

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

function generateRandomColors(num){
	var arr = [];
	for (var i = 0; i < num; i++){
		arr.push(randomColor());
	}
	return arr;
}

function randomColor(){
	var r = Math.floor(Math.random() * 256);
	var g = Math.floor(Math.random() * 256);
	var b = Math.floor(Math.random() * 256);
	return "rgb(" + r + ", " + g + ", " + b + ")"
}