colorgame.js

var numSquares = 6;
var colors = generateRandomColors(numSquares);
var squares = document.querySelectorAll(".square");
var pickedColor = pickColor();
var colorDispaly = document.getElementById("colorDisplay");
var messageDisplay = document.querySelector("#message");
var h1 = document.querySelector("h1");
var resetButton = document.querySelector("#reset");
var easyBtn = document.querySelector("#easyBtn");
var hardBtn = document.querySelector("#hardBtn");

easyBtn.addEventListener("click", function(){
     hardBtn.classList.remove("selected");
     easyBtn.classList.add("selected");
     numSquares = 3;
     colors = generateRandomColors(3); //for easy level we have to choose 3 new colors
     pickedColor = pickColor();
     colorDisplay.textContent = pickedColor;
     for(var i=0; i < squares.length; i++){
        if(colors[i]){
            squares[i].style.background = colors[i];
        } else {
            squares[i].style.display = "none";
        }
     }
});

hardBtn.addEventListener("click", function(){
     hardBtn.classList.add("selected");
     easyBtn.classList.remove("selected");
     numSquares = 6;
     colors = generateRandomColors(6);
     pickedColor = pickColor();
     colorDisplay.textContent = pickedColor;
     for(var i=0; i < squares.length; i++){
            squares[i].style.background = colors[i];
            squares[i].style.display = "block";
     }
});

resetButton.addEventListener("click", function(){
    //generate all new colors
    colors = generateRandomColors(numSquares);
    //pick a new random color from array
    pickedColor = pickColor();
    //change colorDisplay to match picked color
    colorDisplay.textContent = pickedColor;
    this.textContent = "New Colors";

    messageDisplay.textContent = "";
    //change colors of squares
    for(var i=0; i < squares.length; i++){
        squares[i].style.background = colors[i];
     }
     h1.style.background = "steelblue"; 
})
colorDisplay.textContent = pickedColor;

for(var i=0; i<squares.length; i++){
    //add initial colors to squares
    squares[i].style.background = colors[i];
    //add click listeners to squares
    squares[i].addEventListener("click",function(){
        //grab color of clicked square
        var clickedColor = this.style.background;
        //compare color to picked color
        console.log(clickedColor , pickedColor);
        if(clickedColor === pickedColor){
            messageDisplay.textContent = "Correct!";
            resetButton.textContent ="Play Again?";
            changeColors(clickedColor);
            h1.style.background = clickedColor;
        }
        else{
            this.style.background = "#232323"; //selected wrong one toh fade kardega woh option
            messageDisplay.textContent = "Try Again";
        }
    });
}
function changeColors(color){
    //loop through all squares
    for(var i=0; i< colors.length; i++){
    //change each color to match given colour
    squares[i].style.background = 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++){
        arr.push(randomColor())
    //get random color and push into arr
    }
    //return that array
    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 + ")";
}