project.js

const prompt = require("prompt-sync")();

const Rows=3;
const Cols=3;

const symbols_count = {
    "A" : 2,
    "B" : 4,
    "C" : 6,
    "D" : 8

}

const symbols_values = {
    "A" : 5,
    "B" : 4,
    "C" : 3,
    "D" : 2
}

const deposit = () => {
    while(true){
    const balance = prompt("Amount of deposit: ");
    const numberdepositamount = parseFloat(balance);

    if(isNaN(numberdepositamount) || numberdepositamount <= 0){
        console.log("please try again ");
    }else{
       return numberdepositamount;
    }
}
};

// console.log(deposit());

const getnumberoflines = () => {
    while(true){
    const lines = prompt("Number of lines you wanna play(1-3) :  ");
    const numberoflines = parseFloat(lines);

    if(isNaN(numberoflines) || numberoflines <= 0 || numberoflines >3){
        console.log("please try again ");
    }else{
       return numberoflines;
    }
}
};


// console.log(getnumberoflines());


const getbet = (balance,lines) => {
    while(true){
    const bet = prompt("How much do you wanna bet per line? : ");
    const numberbet = parseFloat(bet);

    if(isNaN(numberbet) || numberbet <= 0 || numberbet > balance/lines ){
        console.log("Invalid bet, please try again ");
    }else{
       return numberbet;
    }
}
};

const spin = () =>{
    const symbols=[];
    for(const[symbol,count] of Object.entries(symbols_count)){
         for(let i=0; i <count ; i++){
            symbols.push(symbol);
         }
    }


    const reel = [];
    for(let i=0; i < Cols ;i++ ){
        reel.push([]);
        const reelsymbols = [...symbols];
        for(let j=0; j <Rows; j++){
            const randomindex = Math.floor(Math.random()*reelsymbols.length);
            reel[i].push(reelsymbols[randomindex]);
       reelsymbols.splice(randomindex,1);
        }

    }
    return reel;
};

const transpose = (reel)=>{
    const rows = [];
    for(let i=0; i< Rows; i++){
        rows.push([]);
        for(let j=0; j< Cols; j++){
            rows[i].push(reel[j][i]);
        }
    }
    return rows;
};


const printrow = (rows)=>{
    for(const row of rows){
        let rowstring = "";
        for(const [i,symbol] of row.entries()){
              rowstring += symbol;
              if(i != row.length - 1){
                rowstring += " | ";
              }
        }
        console.log(rowstring);
    }
};

const getwinnings = (rows, bet, lines)=>{
    let winnings = 0;
    for(let row=0; row < lines; row++){
        const symbols = rows[row];
        let allsame = true;

        for( const symbol of symbols){
            if(symbol != symbols[0]){
                allsame = false;
                break;
            }
        }
        if(allsame){
            winnings += bet*symbols_values[symbols[0]];
        }
    }
    return winnings;
};

const game = ()=>{
    let balance= deposit();
    while(true){
        console.log("you have a balance of $"+balance);
        const numberoflines= getnumberoflines();
        const bet = getbet(balance, numberoflines);
        balance -= bet * numberoflines;
        const reels = spin();
        const rows = transpose(reels);
        printrow(rows);
        const winnings = getwinnings(rows, bet, numberoflines);
        balance += winnings;
        console.log("You won, $" + winnings.toString());
    
        if (balance <= 0) {
          console.log("You ran out of money!");
          break;
        }
    
        const playAgain = prompt("Do you want to play again (y/n)? ");
    
        if (playAgain != "y"){ break;}
      }
    };
    

game();