Theory
Theory
Comments

Another project: a dart machine

Appetite comes with eating. The boss accidentally noticed a program that counts the number of points scored before the first miss. Now he sends you greetings and a new task along with them: a driver for a dart machine game.

Machine rules:

Each game starts with 0 points.
You need to collect 100 or more points to win.
You lose the game on your third miss.

We’ll use a while loop and the break and continue statements in this program.

Sometimes programmers create endless loops by mistake after having incorrectly written the stop condition. Such loops can make the browser window in which they are executed “hang”. But if you use endless loops wisely, they can be useful.

We’ll use a while loop to count the points. Before each iteration, its condition will check whether the player still needs more points to win.

In the first step, let’s change the condition so that the game ends when you reach 100 points.

script.js

JavaScript

var score = 0; var total = 0; while (score > -1) { score = muffin.getScore(); total += score; } console.log(total);

Goalscompleted

Let’s update the loop to track each throw and log its score to the console.

Add variable victoryPoints, which will store 100, the number of points needed to win.
Replace the loop condition with total < victoryPoints so it runs until the required score is reached.
In the loop, log in the console the result of the shot from the variable score.

Another project: a dart machine

Comments

Result

Log in

Sign up

Restore access