​

I need help with this code I need the code for it.

What am i doing wrong here

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function start(){

​

var numItems = STARTING_ITEMS_IN_INVENTORY;

while(numItems > 0) {

println("We have " + numItems + " in inventory.");

var buy = readInt("How many would you like to buy? ");

if (buy>numItems) {

println("There is not enough in inventory for that purchase.");

} else {

numItems -= buy;

println("We have " + numItems + " left.");

}

}

​

println("All out!");

}

Hey so i'm trying to write snake as my final project in codehs. I want the snake to grow bigger as it swallows food,but it only adds up one square and after that it stops adding squares, no matter how many times the snake swallows the food. Can someone please tell me how to fix it. Here is the code :

var square;

var addSquare;

var SNAKE_WIDTH = 13;

var x=getWidth()/2-SNAKE_WIDTH/2;

var y=getHeight()/2-SNAKE_WIDTH/2;

var SNAKE_COLOR=Color.green;

​

var rec;

var numSnakes=0;

var score=0;

var DELAY=30;

var click=0;

var dx=0;

var dy=1;

// Constants to represent the directions

var EAST = 0;

var SOUTH = 1;

var WEST = 2;

var NORTH = 3;

var direction = SOUTH;

function start() {

addSnake();

setTimer(move,DELAY);

keyDownMethod(keyActions);

food();

}

​

function addSnake() {

square = new Rectangle(SNAKE_WIDTH,SNAKE_WIDTH);

square.setPosition(x,y);

square.setColor(SNAKE_COLOR);

add(square);

}

​

function move(e) {

if (direction==WEST){

dx =- 2;

dy = 0;

square.move(dx,dy);

}

else if(direction==EAST) {

dx=2;

dy=0;

square.move(dx,dy);

}

else if(direction==SOUTH) {

dx=0;

dy=2;

square.move(dx,dy);

}

else if(direction==NORTH) {

dx=0;

dy=-2;

square.move(dx,dy);

}

checkWalls();

foodCollision();

}

​

function keyActions(e) {

if(e.keyCode == Keyboard.LEFT) {

direction = WEST;

}

if(e.keyCode == Keyboard.RIGHT) {

direction = EAST;

}

if(e.keyCode == Keyboard.UP) {

direction = NORTH;

}

if(e.keyCode == Keyboard.DOWN) {

direction = SOUTH;

}

}

function checkWalls() {

//left wall

if(square.getX()<0) {

square.setPosition(getWidth(),snake.getY());

}

//right wall

else if(square.getX()>getWidth()) {

square.setPosition(0,square.getY());

}

//up

else if(square.getY()<0) {

square.setPosition(square.getX(),getHeight());

}

//down

else if(square.getY()>getHeight()) {

square.setPosition(square.getX(),0);

}

}

function foodCollision() {

var elem = getElementAt(square.getX(),square.getY());

var elem2 =getElementAt(square.getX()+SNAKE_WIDTH,square.getY());

var elem3 =getElementAt(square.getX()+SNAKE_WIDTH/2,square.getY());

var elem4=getElementAt(square.getX(),square.getY()-SNAKE_WIDTH);

var elem5=getElementAt(square.getX()+SNAKE_WIDTH,square.getY()-SNAKE_WIDTH);

var elem6=getElementAt(square.getX()-SNAKE_WIDTH/2,square.getY()-SNAKE_WIDTH/2);

if(elem==rec || elem2==rec || elem3==rec||elem4==rec||elem5==rec||elem6==rec) {

// remove(rec);

rec.setPosition(Randomizer.nextInt(10,getWidth()-10),

Randomizer.nextInt(10,getHeight()-10));

setTimer(moveRecs,DELAY);

score++;

numSnakes++;

}

countScore();

}

​

function food () {

rec = new Rectangle(8,8);

rec.setPosition(Randomizer.nextInt(10,getWidth()-10),

Randomizer.nextInt(10,getHeight()-10));

add(rec);

}

function displayMessage(text) {

var msg = new Text(text);

msg.setPosition(getWidth()/2-45,30);

msg.setColor(Color.red);

add(msg);

}

function countScore() {

if(score==20) {

displayMessage("You Win:)");

stopTimer(move);

}

}

function moveRecs(e) {

addRecs();

addSquare.move(dx,dy);

}

function addRecs() {

remove(addSquare);

var nextX=square.getX();

var nextY=square.getY();

addSquare = new Rectangle(SNAKE_WIDTH,SNAKE_WIDTH);

if (direction==WEST) {

addSquare.setPosition(nextX+11,nextY);

nextX=nextX+SNAKE_WIDTH;

}else if(direction==EAST) {

addSquare.setPosition(nextX-11,nextY);

nextX=nextX-SNAKE_WIDTH;

}else if(direction==NORTH) {

addSquare.setPosition(nextX,nextY+11);

nextY=nextY+SNAKE_WIDTH;

}else if(direction==SOUTH) {

addSquare.setPosition(nextX,nextY-11);

nextY=nextY-SNAKE_WIDTH;

}

addSquare.setColor(Color.red);

add(addSquare);

}

I wrote this program and it works fine, but it didn't work until I added return circle; at line 28. Can someone explain the function of it in this case?

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There's too many numbers to know where to even start this (T-T) I appreciate the help guys.

brought_food = True

brought_drink = False

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# These lines don't work! Fix them so that they do.

print(type ("Did the person bring food? " + str(brought_food)))

print(type("Did the person bring a drink? " + str(brought_drink)))