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While the solutions provided might not be the quickest route to the end goal, their effectiveness is guaranteed. It’s important to remember that these solutions are tailored for the Video Game Design course focusing on JavaScript, particularly Unit 1: Video Game Design.
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Programming With Karel Answers
| Exercise | Solution |
|---|---|
| 1.1.4 Your First Karel Program | move(); move(); move(); move(); takeBall(); |
| 1.1.5 Short Stack | move(); putBall(); putBall(); move(); |
| 1.2.4 Make a Tower | move(); putBall(); turnLeft(); move(); putBall(); move(); putBall(); move(); turnLeft(); turnLeft(); turnLeft(); |
| 1.2.5 Pyramid of Karel | putBall(); move(); putBall(); turnLeft(); move(); putBall(); turnLeft(); turnLeft(); turnLeft(); move(); putBall(); turnLeft(); turnLeft(); turnLeft(); move(); putBall(); turnLeft(); turnLeft(); move(); move(); putBall(); turnLeft(); turnLeft(); turnLeft(); |
| 1.3.4 Slide Karel | function turnRight() { turnLeft(); turnLeft(); turnLeft(); } putBall(); move(); turnRight(); move(); putBall(); turnLeft(); move(); turnRight(); move(); putBall(); turnLeft(); |
| 1.3.5 Fireman Karel | function turnRight() { turnLeft(); turnLeft(); turnLeft(); } turnRight(); move(); move(); move(); turnLeft(); |
| 1.4.4 Pancakes | function makePancakes() { putBall(); putBall(); putBall(); } move(); makePancakes(); move(); move(); makePancakes(); move(); move(); makePancakes(); move(); |
| 1.4.5 Mario Karel | function turnRight() { turnLeft(); turnLeft(); turnLeft(); } function collectCoins() { turnLeft(); move(); move(); move(); takeBall(); takeBall(); turnLeft(); turnLeft(); move(); move(); move(); turnLeft(); } move(); collectCoins(); move(); move(); collectCoins(); move(); move(); collectCoins(); move(); move(); collectCoins(); |
| 1.5.4 Pancakes with Start | function makePancakes() { putBall(); putBall(); putBall(); } function start() { move(); makePancakes(); move(); move(); makePancakes(); move(); move(); makePancakes(); move();} |
| 1.6.4 The Two Towers | function start() { buildTower(); buildTower2(); // Write your code here } function buildTower() { move(); turnLeft(); putBall(); move(); putBall(); move(); putBall(); turnLeft(); turnLeft(); move(); move(); turnLeft(); } function buildTower2() { move(); move(); turnLeft(); putBall(); move(); putBall(); move(); putBall(); move(); turnRight(); } function turnRight() { turnLeft(); turnLeft(); turnLeft(); } |
| 1.7.4 The Two Towers + Comments | function start() { buildTower();///hhahhah captian obvious buildTower2();///why am i doing this, can’t this just submit already? // So like literally this just calls in the buildTower functions lol } function buildTower() // This one literally builds the towers and goes down { move(); //move turnLeft(); //turn putBall(); //puttingBall move(); //move putBall(); //putting ball move(); //move putBall(); //putting ball turnLeft(); //turn turnLeft(); //turn move(); //moving move(); //moing again turnLeft(); //turning again } function buildTower2() // This one is how to build the second tower becaues for some reason this one is a bit different from the first { move();//aaa move();//aaa turnLeft();//aa putBall();//a move();//a putBall();//a move();//a putBall();//a move();//aaaaa turnRight();//aaaaaa } function turnRight() // This is so self explanatory i don’t even see whsy I need to explain this lool { turnLeft();//yeet turnLeft();//xd turnLeft();//exdeeh } |
| 1.8.4 The Two Towers + SuperKarel | function start() { buildTower(); buildTower2(); // Write your code here } function buildTower() { move(); turnLeft(); putBall(); move(); putBall(); move(); putBall(); turnLeft(); turnLeft(); move(); move(); turnLeft(); } function buildTower2() { move(); move(); turnLeft(); putBall(); move(); putBall(); move(); putBall(); move(); turnRight(); } |
| 1.9.5 Take ’em All | function start() { move(); for(var i = 0; i < 100; i++) { takeBall(); } move();} |
| 1.9.6 Dizzy Karel | function start() { for(var i = 0; i < 32; i++) { turnLeft(); } } |
| 1.9.7 For Loop Square | function start() { for(var i = 0; i < 4; i++) { move(); putBall(); turnLeft(); } } |
| 1.9.8 Lots of Hurdles | function start() { for(var i = 0; i < 5; i++) { jumpHurdle(); } } function jumpHurdle() { move(); move(); turnLeft(); move(); turnRight(); move(); turnLeft(); turnLeft(); turnLeft(); move(); turnLeft(); } |
| 1.10.5 Is There a Ball? | function start() { if(ballsPresent()) { takeBall(); } if(noBallsPresent()) { putBall(); } move();} |
| 1.11.5 Right Side Up | function start() { south(); west(); } function south() { if(facingSouth()) { turnRight(); } } function west() { if(facingWest()) { turnLeft(); turnLeft(); } } |
| 1.12.4 Follow The Yellow Ball Road | // Follow the yellow ball road! // Karel moves until it’s not on a tennis ball. function start() { while(ballsPresent()) { move(); } } |
| 1.12.5 Lay Row of Tennis Balls | function start() { while(noBallsPresent()) { putBall(); if(frontIsClear()) { move(); } } } |
| 1.12.6 Big Tower | /* This program draws a big tower from Karel’s starting spot */ function start() { faceNorth(); placeBalls(); } function placeBalls() { while(noBallsPresent()) { putBall(); if(frontIsClear()) { move(); } } } function faceNorth() { while(notFacingNorth()) { turnLeft(); } } |
| 1.13.4 Random Hurdles | function start() { for(var i = 0; i < 13; i++) { if(frontIsClear()) { move(); } else { jumpHurdle(); } } } function jumpHurdle() { turnLeft(); move(); turnRight(); move(); turnRight(); move(); turnLeft(); } |
| 1.15.4 Diagonal | /* This program has karel lay a diagonal row of tennis balls. However, the indenting is all wrong. Can you properly indent this program? */ function start(){ while(frontIsClear()){ putBall(); move(); turnLeft(); move(); for(var i = 0; i < 3; i++){ turnLeft(); } } putBall(); } |
| 1.15.5 Staircase | /* This program creates a staircase from the first spot all the way across the world for any sized world. * This program works, but its indentation is completely wrong. Run the program first, so you know what it does and don’t break it. */ function start(){ putBall(); while(frontIsClear()){ turnLeft(); while (ballsPresent()) { move(); } turnRight(); move(); createStep(); } } function createStep() { turnRight(); putBall(); while (frontIsClear()) { move(); putBall(); } turnLeft(); } |
| 1.16.1 Fetch | function start() { goUp(); goDown(); } function goUp() //Going up { move(); turnLeft(); move(); move(); move(); move(); turnRight(); move(); takeBall(); } function goDown() //Going down { turnLeft(); turnLeft(); move(); move(); turnLeft(); move(); move(); move(); move(); turnLeft(); putBall(); } |
| 1.16.2 Racing Karel | function start() //Thanks, Captain Obvious { for(var i = 0; i < 8; i++) { runLap(); } } function run() //Running in a single line { while(frontIsClear()) { move(); } putBall(); turnLeft(); } function runLap() //Running a lap { run(); run(); run(); run(); } |
| 1.16.3 Tower Builder | function start() { buildTower(); buildTower2(); // Write your code here } function buildTower() { move(); turnLeft(); putBall(); move(); putBall(); move(); putBall(); turnLeft(); turnLeft(); move(); move(); turnLeft(); } function buildTower2() { move(); move(); turnLeft(); putBall(); move(); putBall(); move(); putBall(); move(); turnRight(); } function turnRight() { turnLeft(); turnLeft(); turnLeft(); } |
| 1.16.4 Super Cleanup Karel | function start() { cleanRows(); } function cleanRows() { while(frontIsClear()) { if(ballsPresent()) { takeBall(); } move(); //Proceed } if(facingEast()) { turn1(); } if(facingWest()) { turn2(); }} function turn1() { turnLeft(); if(ballsPresent()) { takeBall(); } if(frontIsClear()) { move(); if(ballsPresent()) { takeBall(); } turnLeft(); } cleanRows(); } function turn2() { turnRight(); if(ballsPresent()) { takeBall(); } if(frontIsClear()) { move(); if(ballsPresent()) { takeBall(); } turnLeft(); turnLeft(); turnLeft(); } cleanRows(); } |
| 1.16.5 Double Tennis Balls | //Have 5 functions 1 start function start(){ move(); putTwoBalls(); moveBack(); } function putTwoBalls(){ while(ballsPresent()){ takeBall(); putTwoMoreBallsNextAve(); } moveBallsNextDoorBack(); } function putTwoMoreBallsNextAve(){ move(); putBall(); putBall(); moveBack(); } function moveBallsNextDoorBack(){ move(); while(ballsPresent()){ moveOneBallBack(); } moveBack(); } function moveOneBallBack(){ takeBall(); moveBack(); putBall(); move(); } function moveBack(){ turnAround(); move(); turnAround(); } |
For those seeking solutions to the “JavaScript and Graphics” section, specifically Unit 2: Video Game Design from CodeHS, you are advised to visit the
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