Pause screen Canvas Not updating - javascript

By clicking space you get the pause screen. I am trying to update the score but I think my if, if else loops are wrong, I am getting no error however.
Just click here and while playing hit space:
http://www.taffatech.com/Snake.html
The code that is trouble I think is:
function SetSize()
{
if (document.getElementById('Easy').checked)
{
cellSize = 10;
Mode = 1;
}
else if (document.getElementById('Medium').checked)
{
cellSize = 20;
Mode = 2;
}
else if (document.getElementById('Hard').checked)
{
cellSize = 30;
Mode = 3;
}
}
function init()
{
if (Mode == 1)
{
scoreEasy = easyScore;
if(score > scoreEasy) {
easyScore = scoreEasy;
}
}
else if (Mode == 2)
{
scoreMedium = mediumScore;
if(score > scoreMedium) {
mediumScore = score;
}
}
else if (Mode == 3)
{
scoreHard = hardScore;
if(score > scoreHard) {
highScore = score;
}
}

I'm guessing here
scoreHard = hardScore;
if(score > scoreHard) {
Should that be:
scoreHard = Math.max(score,hardScore);
And also highScore = score; in the hardScore part, shouldn't that be hardScore = score;?

Related

How can I make different levels for a game? Would I have to make different classes?

I already have a sketch.js file with some gameStates.
var gameState = "wait";
I added conditional statements such as:
if(gameState == "wait"){
background(backgroundImg);
textSize(50);
fill("blue");
text("Project42 Own",250,400);
startButton.visible = true;
gun.visible = false;
backBoard.visible = false;
}
Below is the code that has level 1, wait, play and end gameState:
function draw() {
if(gameState == "wait"){
background(backgroundImg);
textSize(50);
fill("blue");
text("Project42 Own",250,400);
startButton.visible = true;
gun.visible = false;
backBoard.visible = false;
}
if(mousePressedOver(startButton)&& gameState == "wait"){
gunSound.play();
gunSound.setVolume(0)
gameState = "play";
}
if(gameState == "play"){
background("#BDA297")
fill("red");
textSize(30);
text("Score:" + score + " ",300,100);
fill("green");
text("Life:" + life + " ",800,100)
gun.y=mouseY
startButton.visible = false;
gun.visible = true;
backBoard.visible = true;
if(keyDown("SHIFT")){
shootBullets();
}
if (frameCount % 80 === 0) {
drawBlueBubble();
}
if (frameCount % 100 === 0) {
drawRedBubble();
}
if(blueBubbleGroup.collide(bulletGroup)){
handleBubbleCollision(blueBubbleGroup);
score +=5;
}
if(redBubbleGroup.collide(bulletGroup)){
handleBubbleCollision(redBubbleGroup);
score += 10;
}
if (blueBubbleGroup.collide(backBoard)){
handleGameover(blueBubbleGroup);
}
if (redBubbleGroup.collide(backBoard)) {
handleGameover(redBubbleGroup);
}
}
if (life == 0) {
gameState == "end"
}
if(gameState == "end"){
background(gameOverImg)
redBubbleGroup.hideEverything()
blueBubbleGroup.hideEverything();
}
drawSprites();
}
However, I now want to make level 2 in which there will be more obstacles. Also, I'm not a professional coder so please be clear in your answer.

I do not know how to limit the time in between calling my function

//let screenWidth = window.screen.width;
//let screenHeight = window.screen.height;
let screenWidth = 800;
let screenHeight = 600;
let assets = {};
let frames = 60;
let score = 0;
let lives = 3;
let player;
// let enemie;
//let enemies;
let bullet;
//let bullets;
let powerup = 0;
let gameOver = true;
function drawScoreBoard() {
textSize(20);
fill('white');
text(`Score: ${score} / Lives: ${lives}`, 20, 40);
}
function preload() {
assets.player = loadImage('assets/Player.png');
assets.enemie = loadImage('assets/Enemie.png');
assets.bulletRight = loadImage('assets/Bullet_Right.png');
assets.bulletLeft = loadImage('assets/Bullet_Left.png');
assets.bulletUp = loadImage('assets/Bullet_Up.png');
assets.bulletDown = loadImage('assets/Bullet_Down.png');
}
function setup() {
bullets = createGroup();
enemies = createGroup();
assets.player.resize(30, 30);
assets.enemie.resize(30, 30);
assets.bulletRight.resize(30, 30);
assets.bulletLeft.resize(30, 30);
assets.bulletUp.resize(30, 30);
assets.bulletDown.resize(30, 30);
createCanvas(screenWidth, screenHeight);
}
function createBullet(){
let numList = [0, 90, 180, 270, 360];
let bulletDirection = [assets.bulletLeft, assets.bulletUp, assets.bulletRight, assets.bulletDown];
let randomdirection = numList[Math.floor(Math.random() * numList.length)];
let bullet = createSprite(bulletDirection[(Math.round(player.getDirection()/90))]);
enemie.centerX = random(0, screenWidth);
enemie.setSpeed(random(1,10));
enemie.setDirection(randomdirection);
enemie.setCollider("circle");
bullets.add(bullet);
}
function createPlayer(){
player = createSprite(assets.player);
player.bottom = screenHeight - 20;
player.centerX = screenWidth / 2;
}
function shoot(amountofbulletstobeshot) {
let bulletDirection = [assets.bulletLeft, assets.bulletUp, assets.bulletRight, assets.bulletDown];
let bullet = createSprite(bulletDirection[Math.abs(((Math.round(player.getDirection()/90))))]);
bullets.add(bullet);
// bullet.direction = player.direction;
bullet.centerX = player.centerX;
bullet.centerY = player.centerY;
bullet.setVelocity(11, player.getDirection());
// console.log('The players current direction right now is: ' + player.getDirection());
}
function shooting() {
if (keyIsDown(KEY.SPACE)) {
if (powerup === 1) {
shoot(3);
}
else {
shoot(1);
}
}
if (bullet) {
if (bullet.centerX[1] === screenWidth) {
bullets.remove(bullet);
}
}
}
function updateplayer() {
//movement
if (keyIsDown) {
if (keyIsDown(KEY.RIGHT_ARROW)) {
player.setVelocity(6, 0);
}
if (keyIsDown(KEY.LEFT_ARROW)) {
player.setVelocity(6, 180);
}
if (keyIsDown(KEY.UP_ARROW)) {
player.setVelocity(6, 270);
}
if (keyIsDown(KEY.DOWN_ARROW)) {
player.setVelocity(6, 90);
}
}
//dont go offscreen
if (player.left < 0) {
player.left = 0;
}
if (player.right > screenWidth) {
player.right = screenWidth;
}
if (player.top < 0) {
player.top = 0;
}
if (player.bottom > screenHeight) {
player.bottom = screenHeight;
}
enemies.overlap(player, HandlePlayerEnemieCollision);
//end up updateplayer
}
function updateEnemie() {
if (frameCount % 1 === 0) {
let directions = ["LEFT", "RIGHT", "UP", "DOWN"];
let direction = random(directions);
if (direction === "LEFT" && enemie.left > 0) {
enemie.centerX -= 5;
}
if (direction === "RIGHT" && enemie.right < screenWidth) {
enemie.centerX += 5;
}
if (direction === "UP" && enemie.top > 0) {
enemie.centerY -= 5;
}
if (direction === "DOWN" && enemie.bottom < screenHeight) {
enemie.centerY += 5;
}
}
}
function createEnemie() {
let directions = [270, 180, 0, 90];
direction = directions[(Math.floor(Math.random() * 5))];
enemies.overlap(bullets, HandleEnemieBulletCollision);
if (frameCount % 60 === 0) {
enemie = createSprite(assets.enemie);
enemie.centerX = Math.floor(Math.random() * 300) + 100;
enemie.centerY = Math.floor(Math.random() * 300) + 100;
enemie.setVelocity(Math.floor(Math.random() * 5) + 1, direction);
enemies.add(enemie);
}
}
function HandleEnemieEdgeCollision(enemie, edge) {
if (enemie.centerY === screenWidth) {
enemie.remove();
}
}
function HandleEnemieBulletCollision(enemie, bullet) {
enemie.remove();
bullet.remove();
score++;
}
function HandlePlayerEnemieCollision(player, enemie) {
enemie.remove();
player.remove();
lives--;
if (lives === 0) {
gameOver = true;
}
createPlayer();
}
/*
function updateEnemie() {
player.setVelocity(7, player.direction);
}
*/
function cheat() {
score = (score + 1000000);
lives = (lives + 1000000);
cheats = 'on';
if (cheats === 'on') {
textSize(50);
fill('yellow');
text('CHEATS ACTIVATED', 400, 300);
}
}
/*
function sleep(milliseconds) {
var start = new Date().getTime();
for (var i = 0; i < 1e7; i++) {
if ((new Date().getTime() - start) > milliseconds) {
break;
}
}
}
*/
function drawGameOverScreen() {
background("black");
textAlign(CENTER);
fill("white");
textSize(40);
text("WELCOME", screenWidth/2, screenHeight/2);
textSize(20);
text("Press SPACE to play!", screenWidth/2, screenHeight/2 + 100);
if (keyWentDown(KEY.SPACE)){
resetGame();
gameOver = false;
}
}
function resetGame(){
score = 0;
lives = 3;
createPlayer();
}
function drawGame() {
background('lightgreen');
drawScoreBoard();
updateplayer();
drawSprites();
shooting();
// updateEnemie();
createEnemie();
}
function draw() {
if (gameOver === true) {
drawGameOverScreen();
} else {
drawGame();
}
}
There is my code, I want to add a time limit for how many seconds it takes until you can shoot again, right now you can just spam and make all of the bullets go in a straight line I need to wait before I let the player shoot again, Thanks! This will help out allot and i neede this in as few minutes as possible.
Use a flag to know when shooting is enabled and disabled. After each shot disable the ability to shoot. Then use a setTimeout to enable the shooting after a certain amount of time.
let shootingEnabled = true;
function tempDisableShooting(duration) {
shootingEnabled = false;
setTimeout(() => {
shootingEnabled = true;
}, duration);
}
function shooting() {
if (shootingEnabled && keyIsDown(KEY.SPACE)) {
if (powerup === 1) {
shoot(3);
} else {
shoot(1);
}
tempDisableShooting(1000); // Disable shooting for 1 second.
}
if (bullet) {
if (bullet.centerX[1] === screenWidth) {
bullets.remove(bullet);
}
}
}
Add property to track the disabled state of the shooting and a constant for the delay time in milliseconds.
let shootDisabled = false;
const shootDelayMS = 300;
Update your shoot function to only shoot if shootDisabled == false, update the shootDisabled to true after each shot, and to triggers a setTimeout which waits shootDelayMS milliseconds before setting shootDisabled to false again.
function shoot(amountofbulletstobeshot) {
if (shootDisabled == false) {
let bulletDirection = [assets.bulletLeft, assets.bulletUp, assets.bulletRight, assets.bulletDown];
let bullet = createSprite(bulletDirection[Math.abs(((Math.round(player.getDirection()/90))))]);
bullets.add(bullet);
bullet.centerX = player.centerX;
bullet.centerY = player.centerY;
bullet.setVelocity(11, player.getDirection());
shootDisabled = true;
setTimeout(() => shootDisabled = false, shootDelayMS );
}
}
one way is the hold the data in two variables: is_shooting, shot_reset.
if(is_shooting){
if(shot_reset>=x){ //x is frame count till able to shoot again)
shot_reset==0;
is_shooting=false;
}else{
shot_reset++
}
}

How can I get setInterval() to increase by 1 instead of 12?

My game has two players that get random numbers, and the person who has the bigger number gets 1 "win". My while loop is for the "auto-roll" button, and instead of clicking "roll dice" each time, auto-roll will do it for you until one player has wins == game limit # (bestof.value). No matter where I put my setInterval it increases by a bunch at a time. If bestof.value = 10 then each interval displays at least 10 wins for one player at a time.
checkBox.checked = input checkmark that enables auto-roll feature. So this setInterval will only be active while the auto-roll loop is active.
Anyways, what am I doing wrong?
button.addEventListener("click", myFunction);
function myFunction() {
let random = Math.floor((Math.random() * 6) + 1);
let random2 = Math.floor((Math.random() * 6) + 1);
screenID.innerHTML = random;
screenIDD.innerHTML = random2;
if (random > random2){
winNumber.innerHTML = ++a;
} else if(random2 > random){
winNumba1.innerHTML = ++b;
} else {
console.log("Draw");
}
if (a > b){
winNumber.style.color = 'white';
winNumba1.style.color = 'black';
} else if(b > a){
winNumba1.style.color = 'white';
winNumber.style.color = 'black';
} else {
winNumber.style.color = 'black';
winNumba1.style.color = 'black';
}
if (checkBox.checked){
setInterval(myFunction, 2000)
while(a < bestof.value && b < bestof.value){
myFunction();
}};
if (winNumba1.innerHTML == bestof.value){
winAlert.style.display = "flex";
console.log('winNumba1 wins!');
} else if (winNumber.innterHTML == bestof.value){
winAlert.style.display = "flex";
console.log('winNumber wins!');
} else {}
};
I wrote a simplified js only version of your game here since I don't have html at hand, but I am sure you can adjust it to your environment.
Main difference: I check if someone won and use return to stop the function
If no one won and autoplay is activated I autoplay after 500ms again.
let playerA = 0
let playerB = 0
let autoPlay = true
let bestOf = 3
function myFunction() {
let random = Math.floor((Math.random() * 6) + 1);
let random2 = Math.floor((Math.random() * 6) + 1);
console.log("New Round " + random + " vs " + random2)
if (random > random2) {
playerA++
} else if (random2 > random) {
playerB++
} else {
console.log("Draw");
}
if (playerA > playerB) {
console.log("a is winning")
} else if (playerB > playerA) {
console.log("b is winning")
} else {
console.log("There has been a draw")
}
if (playerA == bestOf) {
console.log('A won');
return
} else if (playerB == bestOf) {
console.log('B won');
return
}
if (autoPlay) {
setTimeout(myFunction, 500)
};
};
myFunction()

Odds/Evens Javascript Value not updating between turns

all the code was given by the teacher and you just had to place it in the right spot. even working with the teacher we couldn't get it to update the "value" attribute in between turns. it updates at the finish of the game but not during? what are we not seeing? any help appreciated.. if you need to see html i can add as comment
"use strict";
var $ = function(id) { return document.getElementById(id); };
var getRandomNumber = function(max) {
var random;
if (!isNaN(max)) {
random = Math.random(); //value >= 0.0 and < 1.0
random = Math.floor(random * max); //value is an integer between 0 and max - 1
random = random + 1; //value is an integer between 1 and max
}
return random;
};
var playGame = function() {
var odd = 0;
var even = 0;
var player, computer, total;
resetFields(); // clear any previous entries
while (odd < 50 && even < 50) {
//get computers fingers
computer = getRandomNumber(5);
// get player's fingers
player = parseInt(prompt("Enter a number between 1 and 5, or 999 to quit", 999));
if (!isNaN(player) && player <= 5) {
// show current round
$("player").value = player;
$("computer").value = computer;
// update totals
total = player + computer;
if (total % 2 === 0) {
even = even + total;
$("even").value = even;
} else {
odd = odd + total;
$("odd").value = odd;
}
}
//if loop for player quitting
if (player === 999) {
resetFields();
break;
}
}
//after loop ends, determine winner
if (odd >= 50) { $("message").firstChild.nodeValue = "You WIN!"; }
else if (even >= 50) { $("message").firstChild.nodeValue = "You lose :("; }
else { $("message").firstChild.nodeValue = "You quit"; }
// set focus on button so you can play again
$("play").focus();
};
var resetFields = function() {
$("player").value = "0";
$("computer").value = "0";
$("odd").value = "0";
$("even").value = "0";
$("message").firstChild.nodeValue = "";
};
window.onload = function() {
$("play").onclick = playGame;
$("play").focus();
};

Random "spawn" of divs

I'm trying to create a "spawn point" for a div. I have made it work and I have a working collision detector for it. There are two things I wanted to ask regarding my code.
How do I get my code to work with more than one player (window.i). - At the moment, after an hour of fiddling, I've only broken my code. This whole area screws up the collision detector, I have more than one player showing at times, but I'm unable to move.
How do I make it so that it detects the contact before it happens - I've tried working with the "tank's" margin and subtracting it's width, so that before it makes contact it calls an event, but it has been unsuccessful and completely stopped the collision function working.
I'm sorry that it's asking a lot, I really do understand that, but the issues come into eachother and rebound off so I thought it was best I put it all into one question rather than 2 separate ones an hour apart.
function animate() {
var tank = document.createElement("div");
tank.id= "tank";
tank.style.marginLeft="0px";
tank.style.marginTop="0px";
tank.style.height="10px";
tank.style.width="10px";
document.body.appendChild(tank);
x = parseInt(tank.style.marginLeft);
y = parseInt(tank.style.marginTop);
document.onkeydown = function () {
e = window.event;
if (e.keyCode == '37') {
if (x > 0) {
if (collisionDetector() == false) {
x = x - 10;
tank.style.marginLeft = x + "px";
} else {
alert();
}
}
} else if (e.keyCode == '39') {
if (x < 790) {
if (collisionDetector() == false) {
x = x + 10;
tank.style.marginLeft = x + "px";
} else {
alert();
}
}
} else if (e.keyCode == '38') {
if (y > 0) {
if (collisionDetector() == false) {
y = y - 10;
tank.style.marginTop = y + "px";
} else {
alert();
}
}
} else if (e.keyCode == '40') {
if (y < 490) {
if (collisionDetector() == false) {
y = y + 10;
tank.style.marginTop = y + "px";
} else {
alert();
}
}
}
}
}
window.lives = 3;
function playerSpawn() {
window.i = 1;
while (i > 0) {
var player = document.createElement("div");
randMarL = Math.ceil(Math.random()*80)*10;
randMarT = Math.ceil(Math.random()*50)*10;
player.id = "player";
player.style.marginLeft= randMarL + "px";
player.style.marginTop= randMarT + "px";
player.style.height="10px";
player.style.width="10px";
document.body.appendChild(player);
i--;
}
}
function collisionDetector() {
x1 = tank.style.marginLeft;
x2 = player.style.marginLeft;
y1 = tank.style.marginTop;
y2 = player.style.marginTop;
if ((x1 == x2 && y1 == y2)) {
return true;
} else {
return false;
}
}

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