I'm new to coding and javascript. I'm working on an assignment where I have to create a Rock Paper Scissors game that has 2 modes, single player and best out of three. In the best out of three mode, you need to create a system to remember the score of the user and the bot. And it needs a loop to run as many rounds as possible until there is a player that wins at least two rounds. Once the game ends, you can ask the human player if he/she wants to play again using a confirm() function. I have the base game but I cant figure out how to have the game loop until one player wins 2 rounds. I also cant figure out how to add a play again option. If someone can please help I would greatly appreciate it.
const play = () => {
// set Computer Choice
var userChoice = prompt("Do you choose rock, paper or scissors?");
var computerChoice = Math.random();
if (computerChoice < 0.34) {
computerChoice = "rock";
} else if (computerChoice <= 0.67) {
computerChoice = "paper";
} else {
computerChoice = "scissors";
}
console.log("Player Choice: " + userChoice);
console.log("Computer Choice: " + computerChoice);
if (computerChoice === userChoice) {
return "The result is tie!";
}
if (computerChoice === "rock") {
if (userChoice === "scissors") {
return "Computer wins";
} else {
if (userChoice === "paper")
return "Player wins";
}
}
if (computerChoice === "paper") {
if (userChoice === "scissors") {
return "Computer wins";
} else {
if (userChoice === "rock")
return "Player wins";
}
}
if (computerChoice === "scissors") {
if (userChoice === "rock") {
return "Computer wins";
} else {
if (userChoice === "scissors")
return "Player wins";
}
}
};
const round = () => {
const res = play();
let playerScore = 0;
let computerScore = 0;
console.log(res)
cnt--
wins[cnt] = res.startsWith("Player") ? 1 : 0;
if (cnt === 0) {
const total = wins.reduce((a, b) => a + b)
console.log(`You beat the computer ${total} time${total===1?"":"s"}`)
return
}
setTimeout(round, 10) // else go again
}
let cnt = 1,
wins = [];
const mode = prompt("Please press 1 for single game mode or 2 for best out of 3 mode");
if (mode === '2') {
cnt = 3;
round()
}
You can pass a parameter to the round() function to tell it how many wins are needed. Then, put the main code in a loop:
const round = (winsNeeded) => {
let playerScore = 0;
let computerScore = 0;
while (playerScore < winsNeeded && computerScore < winsNeeded) {
const res = play();
console.log(res)
if (res[0] == 'P') playerScore++;
else if (res[0] == 'C') computerScore++;
console.log(`Score: you ${playerScore}, computer ${computerScore}`);
}
if (playerScore == winsNeeded) {
console.log("Player won that round.");
}
else {
console.log("Computer won that round.");
}
}
while (true) {
let cnt = 1;
const mode = prompt("Please press 1 for single game mode or 2 for best out of 3 mode");
if (mode === '2') cnt = 2;
round(cnt);
const choice = prompt("Play again?");
if (choice[0].toLowerCase() != 'y') break;
}
For every 2 round you can check for the current status of the game. Also made some changes on the play logic
const play = () => {
// set Computer Choice
var userChoice = prompt("Do you choose rock, paper or scissors?");
var computerChoice = Math.random();
if (computerChoice < 0.34) {
computerChoice = "rock";
} else if (computerChoice <= 0.67) {
computerChoice = "paper";
} else {
computerChoice = "scissors";
}
console.log("Player Choice: " + userChoice);
console.log("Computer Choice: " + computerChoice);
if (computerChoice === userChoice) {
return "The result is tie!";
}
//little change in logic here----
if (computerChoice === "rock") {
if (userChoice === "scissors") {
return "Computer wins";
} else {
if (userChoice === "paper")
return "Player wins";
}
}
if (computerChoice === "paper") {
if (userChoice === "rock") {
return "Computer wins";
} else {
if (userChoice === "scissors")
return "Player wins";
}
}
if (computerChoice === "scissors") {
if (userChoice === "paper") {
return "Computer wins";
} else {
if (userChoice === "rock")
return "Player wins";
}
}
};
const round = () => {
const res = play();
let playerScore = 0;
let computerScore = 0;
console.log(res)
cnt--
wins[cnt] = res.startsWith("Player") ? 1 :res.includes("tie") ?-1:0;
console.log(wins)
if (cnt === 0) {
const total = wins.filter((a) => a==1)
console.log(`You beat the computer ${total.length} time${total.length===1?"":"s"}`)
playAgain()
}else if(cnt == 1){ // Check for every round
var el2 = wins[2];
var el1 = wins[1];
if(el2 == el1 && el1!=-1){
const total = wins.filter((a) => a==1)
console.log(`You beat the computer ${total.length} time${total.length===1?"":"s"}`)
playAgain()
}
}
if(pa){
setTimeout(round, 10) // else go again
}else{
prompt("Thank you for playing")
}
}
let pa = true;
let cnt = 1,
wins = [];
const mode = prompt("Please press 1 for single game mode or 2 for best out of 3 mode");
if (mode === '2')
cnt = 3;
round()
function playAgain(){
if(confirm('Do you want to play again ?')){
pa = true
cnt = 1
wins = [];
const mode = prompt("Please press 1 for single game mode or 2 for best out of 3 mode");
if (mode === '2')
cnt = 3;
round()
}else{
pa=false
}
}