I've created a timer that switches and loops between images.
I'm looking to create a pause in between the images in which nothing is shown.
So logo1 on for 15 seconds
hide images for 30 seconds
logo2 on for 15 seconds
and so on
This is what I've got so far.
Ideally, the hide would hide both DIVS
<html>
<head>
<style>
.box1 {
background-color: rgba(0,0,0,0);
color: #fff;
opacity: 1;
align-content: safe;
}
.brandlogo {
background-color: rgba(0,0,0,0);
position: absolute;
top: 500;
left: 1100;
}
.box2 {
background-color: rgba(0,0,0,0);
color: #545454;
position: absolute;
top: 400;
left: 1000;
}
</style>
</head>
<body>
<div class="wrapper">
<div class="box box1" id="art">
<img class="brandlogo" id="image" src="logo1.png" width="100">
</div>
<div class="box box2" id="frameart">
<img class="brandframe" id="frame" src="adframe2.png" width="300">.
</div>
</div>
<script type="text/javascript">
var image = document.getElementById("image");
var currentPos = 0;
var images = ["logo1.png", "logo2.png", "logo3.png"]
function timercount() {
if (++currentPos >= images.length)
currentPos = 0;
image.src = images[currentPos];
}
setInterval(timercount, 3000);
$("#art").show();
setTimeout(function() {
$("#art").hide();
}, 500);
</script>
</body>
</html>
Let me know how it goes :)
<script type = "text/javascript">
var image = document.getElementById("image");
var currentPos = 0;
var images = ["logo1.png", "logo2.png", "logo3.png"]
// jquery api on hide
// https://api.jquery.com/hide/
function hideArt() {
$("#art").hide(30000, changeLogo);
}
function changeLogo() {
if (++currentPos >= images.length) {
currentPos = 0;
}
image.src = images[currentPos];
// restart loop
loop();
}
function loop() {
// setTimeout api
// https://developer.mozilla.org/en-US/docs/Web/API/setTimeout
setTimeout(hideArt, 15000);
}
// start loop
loop();
</script>
Related
I would like to make the image a little transparent for a short time by pressing the button and then make it visible again normally. Why does the code not work?
<!DOCTYPE html>
<html>
<head>
<style>
img {
width: 128px;
height: 128px;
padding: 10px;
}
img:hover {
opacity: 0.5;
}
</style>
</head>
<body>
<div id="epicenter">
<img src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Face-devil-grin.svg/1024px-Face-devil-grin.svg.png" alt="Schwarz" id="black">
</div>
<button onclick="test()">Test</button>
<script>
function sleep(miliseconds) {
var currentTime = new Date().getTime();
while (currentTime + miliseconds >= new Date().getTime()) {
}
}
function test() {
document.getElementById("black").style.opacity = "0.33";
sleep(3000);
document.getElementById("black").style.opacity = "1";
}
</script>
</body>
</html>
Using setTimeout is much simpler.
function test() {
const el = document.getElementById('black');
el.style.opacity = '0.33';
setTimeout(() => el.style.opacity = '1', 3000);
}
img width: 128px height: 128px padding: 10px; }
img:hover { opacity: 0.5; }
<div id="epicenter">
<img src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/Face-devil-grin.svg/1024px-Face-devil-grin.svg.png" alt="Schwarz" id="black">
</div>
<button onclick="test()">Test</button>
You should use SetTimeout instead of defining your own sleep function.
setTimeout(function(){
document.getElementById("black").style.opacity = 1;
}, 3000);
Replace your sleep function call with the above.
Refer https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Asynchronous/Timeouts_and_intervals for more details
So I've been working on an animation and I cant figure out how to make the animation go backwards. I want it to got down to up, not up to down because obviously rocket ships launch and go up, not launch and go down
var id = null;
function myMove() {
var elem = document.getElementById("myAnimation");
var pos = 0;
clearInterval(id);
id = setInterval(frame, 10);
function frame() {
if (pos == 350) {
clearInterval(id);
} else {
pos++;
elem.style.bottom = pos + 'px';
elem.style.top = pos + 'px';
}
}
}
<style>
#myContainer {
width: 400px;
height: 400px;
position: relative;
background: none;
}
#myAnimation {
width: 50px;
height: 50px;
position: absolute;
background-color: red;
}
</style>
<!DOCTYPE html>
<html>
<body>
<p>
<button onclick="myMove()">Click Me</button>
</p>
<div id ="myContainer">
<img src="data:image/jpeg;base64,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" id="myAnimation" alt="rocket" />
</div>
so ya can anyone help me please
Below this text is my code - I am trying to create the chrome dino game, and so far everything is going well, but I have one problem - after the red block jumps, the dino doesn't stop falling down - while it should. I don't understand where my problem is, as I wrote about the same code yesterday and everything worked just fine. The gravity function can be found in the JavaScript under // Gravity.
Notice how it's code is very similar to the jump function, but it doesn't work as good as the jump function. Any help would be appreciated!!!!!
// HTML Elements + Other Variables
const floor1 = document.getElementById("floor1");
const floor2 = document.getElementById("floor2");
const floor3 = document.getElementById("floor3");
const floor4 = document.getElementById("floor4");
const floor5 = document.getElementById("floor5");
const floor6 = document.getElementById("floor6");
const floor7 = document.getElementById("floor7");
const dino = document.getElementById("dino");
const highBird = document.getElementById("highBird");
const lowBird = document.getElementById("lowBird");
const wideCactus = document.getElementById("wideCactus");
const thinCactus = document.getElementById("thinCactus");
let jump = 0;
// Floor Function
setTimeout(function () {
floor1.classList.add("floor1Animation");
}, 0);
setTimeout(function () {
floor2.classList.add("floor2Animation");
}, 1000);
setTimeout(function () {
floor3.classList.add("floor3Animation");
}, 2000);
setTimeout(function () {
floor4.classList.add("floor4Animation");
}, 3000);
setTimeout(function () {
floor5.classList.add("floor5Animation");
}, 4000);
setTimeout(function () {
floor6.classList.add("floor6Animation");
}, 5000);
setTimeout(function () {
floor7.classList.add("floor7Animation");
}, 6000);
// Jump
document.onkeydown = function (event) {
let key = event.key;
if (key == "ArrowUp") {
let jumpCount = 0;
if (dino.offsetTop == 95) {
let jumpInterval = setInterval(function () {
dino.style.top = (dino.offsetTop - 5) + "px";
jumpCount += 1;
jump = true;
if (jumpCount == 20) {
clearInterval(jumpInterval);
jump = false;
jumpCount = 0;
}
}, 10);
}
}
}
// Gravity
setInterval(function () {
if (jump == false) {
let jumpGravity = setInterval(function () {
dino.style.top = (dino.offsetTop + 5) + "px";
}, 10);
if (dino.offsetTop == 95) {
clearInterval(jumpGravity);
}
}
}, 10);
body {
margin: 0;
padding: 0;
justify-content: center;
align-items: center;
display: flex;
width: 100vw;
height: 100vh;
}
#gameBoard {
width: 1000px;
height: 150px;
border: 2px solid black;
overflow: hidden;
margin: auto;
position: relative;
background-color: white;
}
#dino {
width: 30px;
height: 50px;
background-color: red;
left: 10px;
top: 95px;
position: absolute;
}
.floorBackground {
position: relative;
height: 10px;
width: 200px;
display: flex;
justify-content: center;
align-items: center;
}
.floor {
position: absolute;
top: 140px;
height: 10px;
width: 200px;
}
#floor1 {
right: -200px;
background-color: red;
}
.floor1Animation {
animation: floorAnimation 6s infinite linear;
}
#floor2 {
right: -200px;
background-color: blue;
}
.floor2Animation {
animation: floorAnimation 6s infinite linear;
}
#floor3 {
right: -200px;
background-color: green;
}
.floor3Animation {
animation: floorAnimation 6s infinite linear;
}
#floor4 {
right: -200px;
background-color: purple;
}
.floor4Animation {
animation: floorAnimation 6s infinite linear;
}
#floor5 {
right: -200px;
background-color: brown;
}
.floor5Animation {
animation: floorAnimation 6s infinite linear;
}
#floor6 {
right: -200px;
background-color: orange;
}
.floor6Animation {
animation: floorAnimation 6s infinite linear;
}
#floor7 {
right: -200px;
background-color: yellow;
}
.floor7Animation {
animation: floorAnimation 6s infinite linear;
}
#keyframes floorAnimation {
from {
right: -200px;
}
to {
right: 1000px;
}
}
#keyframes jumping {
}
<!DOCTYPE html>
<html lang = "en">
<head>
<meta charset = "UTF-8">
<title>
Dino Game
</title>
<link rel = "stylesheet" type = "text/css" href = "DinoCSS.css">
</head>
<body>
<div id = "gameBoard">
<div id = "floor1" class = "floor">
<img src = "Pictures/dinoBackground.PNG" class = "floorBackground">
</div>
<div id = "floor2" class = "floor">
<img src = "Pictures/dinoBackground.PNG" class = "floorBackground">
</div>
<div id = "floor3" class = "floor">
<img src = "Pictures/dinoBackground.PNG" class = "floorBackground">
</div>
<div id = "floor4" class = "floor">
<img src = "Pictures/dinoBackground.PNG" class = "floorBackground">
</div>
<div id = "floor5" class = "floor">
<img src = "Pictures/dinoBackground.PNG" class = "floorBackground">
</div>
<div id = "floor6" class = "floor">
<img src = "Pictures/dinoBackground.PNG" class = "floorBackground">
</div>
<div id = "floor7" class = "floor">
<img src = "Pictures/dinoBackground.PNG" class = "floorBackground">
</div>
<div id = "dino"></div>
<div id = "highBird"></div>
<div id = "lowBird"></div>
<div id = "wideCactus"></div>
<div id = "thinCactus"></div>
</div>
<script type = "text/javascript" src = "DinoJS.js"></script>
</body>
</html>
You should try simplifying your code, it may make the issue easier to find or it may even remove it entirely.
I'd suggest using a velocity system, where every frame you adjust the dino's offsetTop by the dino's current velocity, and then subtract the gravity amount from the dino's current velocity.
This causes the velocity to decrease at a constant rate, but the dino's offsetTop position to decrease at an exponential pace, mimicking real gravity.
Then, to make collision work, just test if the dino is at or above the correct "offsetTop" value before subtracting the gravity. If you find that the dino is below the ground, just set the offsetTop to the ground level and clear the velocity.
I'd also suggest moving your game over to the HTML5 Canvas API, since then you just have to deal with properties of objects rather than DOM element style attributes.
Velocity example with canvas:
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
var x = 10;
var y = 10;
var VelocityX = 0;
var VelocityY = 0;
const gravity = 0.75;
// width and height of the square
var width = 10;
var height = 10;
function animate() {
ctx.clearRect(0, 0, canvas.width, canvas.height); // Clear the canvas
x += VelocityX;
if( x > 500) {
x = 0;
}
if ( y >= 450 ) {
y = 450
VelocityY = 0
} else {
y += VelocityY;
VelocityY += gravity; // Higher values = lower position on canvas
}
ctx.fillRect(x, y, width, height);
}
setInterval(animate, 1000 / 60); // 60 FPS
#canvas {
border: 1px solid black;
}
<canvas id="canvas" width="500" height="500"></canvas>
JSFiddle
I'm new to the wold of programming and have run into a bit of trouble making a photo gallery with JS.
So, the thumbnails invoke a modal with the appropriate image that is passed via an index as parameter. I've used a bit of JQuery just to attach handler on all the thumbnails without looping.
The very first Modal initialization works fine, I'm able to switch between images and then close the modal just fine. After that if I reinitialize the modal, the first image appears correct but when using the "Next" and "Previous" buttons another image appears in the modal. After closer inspection (and a bunch of variable logs) I've determined that the old index (from the first modal initialization) persists within the program thus the function is running the previous index and the new one passed to it. The more times you close it the more index variables you have. It almost seems like the function is running multiple copies of itself and appending all those images onto that one modal.
Sorry if this is a very obvious mistake. I don't really post on this forum but try to solve it myself however after like 6 hours and 50 Chrome tabs, I'm just about done. Thanks a lot! Here's my code:
https://jsfiddle.net/5yejqw8a/4/#&togetherjs=M77M8B8LU8
$(document).ready(function(){
$('.GalleryImg').on('click', function() { //Attach event handler on each photo
var GalleryImgs = Array.prototype.slice.call(document.getElementsByClassName('GalleryImg')); //Turns object array to an a proper array
var ImgIndex = GalleryImgs.indexOf(this); //Position of img clicked
OpenModal(ImgIndex); //Passes the index into the modal function
});
function OpenModal(n) { //Modal function with index parameter
var SlideIndex = n;
console.log("Start Index = "+SlideIndex);
var Lightbox = document.getElementById("Lightbox");
var Modal = document.getElementById("ModalContent");
var Slides = document.getElementsByClassName("ModalSlides");
Lightbox.style.display = "block";
Slides[SlideIndex].style.display = "block";
var PreviousBtn = document.getElementById("PreviousBtn");
PreviousBtn.addEventListener('click', function() {
if (SlideIndex > 0) {
Slides[SlideIndex].style.display = "none";
SlideIndex --;
Slides[SlideIndex].style.display = "block";
console.log("PCurrent = "+SlideIndex);
} else {
return;
};
});
var NextBtn = document.getElementById("NextBtn");
NextBtn.addEventListener('click', function() {
if (SlideIndex < Slides.length-1) {
console.log(SlideIndex);
Slides[SlideIndex].style.display = "none";
SlideIndex ++;
Slides[SlideIndex].style.display = "block";
console.log("NCurrent = "+SlideIndex);
} else {
return;
};
});
var CloseBtn = document.getElementById("CloseBtn");
CloseBtn.addEventListener('click', function() {
Lightbox.style.display = "none";
var i = 0;
while (i < Slides.length) {
Slides[i].style.display = "none";
i++
};
console.log("Closing Index = "+SlideIndex);
});
};
});
You are getting that because of this structure:
function OpenModal(n) {
var PreviousBtn = document.getElementById("PreviousBtn");
PreviousBtn.addEventListener('click', function() {
// ...
});
var NextBtn = document.getElementById("NextBtn");
NextBtn.addEventListener('click', function() {
// ...
});
var CloseBtn = document.getElementById("CloseBtn");
CloseBtn.addEventListener('click', function() {
// ...
});
}
Each time OpenModal is called, it is adding new event listeners to PreviousBtn, NextBtn and CloseBtn. So the more you click, the more functions are to be called by the listeners.
Here is an example:
var activate = document.getElementById("activate");
activate.addEventListener("click", event => {
var submit = document.getElementById("submit");
var result = document.getElementById("result");
let i = 0;
result.textContent = "";
submit.addEventListener("click", event => {
result.textContent += ' ' + i++;
});
});
body { background: #fafafa }
#result, #hint {
font-family: fantasy;
background: #def;
padding: .5em;
}
#result {
background: #fde;
height: 3em;
}
<div id="hint">
Click on activate, then click submit many times.
<br> Click activate again and click submit again many times.
</div>
<div id="result">Result will come here.</div>
<button id="activate">Activate</button>
<button id="submit">Submit</button>
In the snippet, if you activate then submit five times, and repeat doing that four times, you get :
0 1 2 3 4
5 0 6 1 7 2 8 3 9 4
10 5 0 11 6 1 12 7 2 13 8 3 14 9 4
15 10 5 0 16 11 6 1 17 12 7 2 18 13 8 3 19 14 9 4
because every time activate is clicked, a new listener is added with a new i.
So what you should have is:
var PreviousBtn = document.getElementById("PreviousBtn");
PreviousBtn.addEventListener('click', function() {
// ...
});
var NextBtn = document.getElementById("NextBtn");
NextBtn.addEventListener('click', function() {
// ...
});
var CloseBtn = document.getElementById("CloseBtn");
CloseBtn.addEventListener('click', function() {
// ...
});
function OpenModal(n) {
// ...
}
That way, the listener is added only once.
Because you are adding every time a new listener to PreviousBtn, NextBtn and CloseBtn. You need to define the listeners them outside the OpenModal function or use every time removeEventListener (which doesn't make any sense) for every event listener you defined.
A good possible way could be this:
// Gallery Lightbox
$(document).ready(function(){
var SlideIndex = 0;
var Lightbox = document.getElementById("Lightbox");
var Modal = document.getElementById("ModalContent");
var Slides = document.getElementsByClassName("ModalSlides");
$('.GalleryImg').on('click', function() { //Attach event handler on each photo
var GalleryImgs = Array.prototype.slice.call(document.getElementsByClassName('GalleryImg')); //Turns object array to an a proper array
var ImgIndex = GalleryImgs.indexOf(this); //Position of img clicked
SlideIndex = ImgIndex; //Passes the index into the modal function
Lightbox.style.display = "block";
Slides[SlideIndex].style.display = "block";
});
var PreviousBtn = document.getElementById("PreviousBtn");
PreviousBtn.addEventListener('click', function() {
if (SlideIndex > 0) {
Slides[SlideIndex].style.display = "none";
SlideIndex --;
Slides[SlideIndex].style.display = "block";
console.log("PCurrent = "+SlideIndex);
} else {
return;
}
});
var NextBtn = document.getElementById("NextBtn");
NextBtn.addEventListener('click', function() {
if (SlideIndex < Slides.length-1) {
console.log(SlideIndex);
Slides[SlideIndex].style.display = "none";
SlideIndex ++;
Slides[SlideIndex].style.display = "block";
console.log("NCurrent = "+SlideIndex);
} else {
return;
}
});
var CloseBtn = document.getElementById("CloseBtn");
CloseBtn.addEventListener('click', function() {
Lightbox.style.display = "none";
var i = 0;
while (i < Slides.length) {
Slides[i].style.display = "none";
i++
}
console.log("Closing Index = "+SlideIndex);
});
});
/* Gallery */
.Gallery {
display: block;
position: relative;
width: 100%;
height: auto;
}
.GalleryImg {
height: auto;
width: 100%;
cursor: pointer;
opacity: 1;
transition: transform 0.5s;
transform-origin: 50% 50%;
backface-visibility: hidden;
-webkit-backface-visibility: hidden;
}
.Gallery img:hover {
transform: scale(1.07);
}
/* Lightbox */
#Lightbox {
display: none;
position: fixed;
width: 100%;
height: 100%;
top: 0;
left: 0;
padding-top: 5%;
z-index: 10;
background-color: rgba(0,0,0,0.7);
overflow: auto;
}
#ModalContent {
position: relative;
margin: auto;
width: 90%;
max-width: 1200px;
}
.ModalSlides {
display: none;
position: relative;
width: 100%;
height: auto;
}
#CloseBtn {
color: white;
position: absolute;
top: 10px;
right: 25px;
font-size: 50px;
font-weight: bold;
cursor: pointer;
user-select: none;
-webkit-user-select: none;
z-index: 999;
}
#CloseBtn:hover,
#CloseBtn:focus {
color: #999;
text-decoration: none;
cursor: pointer;
}
#NextBtn, #PreviousBtn {
cursor: pointer;
position: absolute;
top: 60%;
width: auto;
padding: 20px;
margin-top: -75px;
color: white;
font-weight: bold;
font-size: 50px;
transition: 0.5s ease;
border-radius: 0 3px 3px 0;
user-select: none;
-webkit-user-select: none;
}
#NextBtn {
right: 0;
border-radius: 3px 0 0 3px;
}
#NextBtn:hover,
#PreviousBtn:hover {
background-color: rgba(0, 0, 0, 0.8);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="Gallery">
<div class="row mt-3">
<div class="col-4">
<img class="GalleryImg" src="http://via.placeholder.com/350x150" alt="">
</div>
<div class="col-4">
<img class="GalleryImg" src="http://via.placeholder.com/380x150" alt="">
</div>
<div class="col-4">
<img class="GalleryImg" src="http://via.placeholder.com/450x150" alt="">
</div>
</div>
<div class="row mt-3">
<div class="col-4">
<img class="GalleryImg" src="http://via.placeholder.com/390x150" alt="">
</div>
<div class="col-4">
<img class="GalleryImg" src="http://via.placeholder.com/350x50" alt="">
</div>
<div class="col-4">
<img class="GalleryImg" src="http://via.placeholder.com/350x250" alt="">
</div>
</div>
</div>
<div id="Lightbox">
<span id="CloseBtn">×</span>
<div id="ModalContent">
<img class="ModalSlides" src="http://via.placeholder.com/350x150" alt="">
<img class="ModalSlides" src="http://via.placeholder.com/380x150" alt="">
<img class="ModalSlides" src="http://via.placeholder.com/450x150" alt="">
<img class="ModalSlides" src="http://via.placeholder.com/390x150" alt="">
<img class="ModalSlides" src="http://via.placeholder.com/350x50" alt="">
<img class="ModalSlides" src="http://via.placeholder.com/350x250" alt="">
<a id="PreviousBtn">❮</a>
<a id="NextBtn">❯</a>
</div>
</div>
In this way we have defined only one time the event listeners.
SlideIndex, Lightbox, Modal and Slides variables are defined at the begin.
I have a pretty huge image being displayed in a container, the image stretches with the view port as it gets resized, but as the image is so big I have added scroller buttons to the side of the page, up and down, the only problem I have now is that when I press up or down there is no limit, the user can keep going until the image is completely out of sight, how can I stop that from happening?
Here is the code I have thus far,
HTML:
<body>
<div id="wrapper">
<div class="scroll top"></div>
<div id="content">
<div id="zoom_container">
<img id="image" src="8052x2000px" />
</div>
</div>
<div class="scroll bot"></div>
</div>
</body>
CSS:
body {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
#wrapper {
overflow: hidden;
height: 100%;
max-height: 100%;
}
#content {
min-height: 100% !important;
height: 100%;
width: 100%;
margin: 0;
padding: 0;
}
#image {
position: fixed;
top: 0;
left: 0;
width: 100%;
}
jQuery:
//side scroller bar
$('.scroll').live('click', function(){
var direction = $(this).hasClass('top');
var img_pos_top = $("#zoom_container img").position().top;
var inc = 0;
inc = $("#zoom_container img").height() / 10;
if(direction)
{
inc = $("#zoom_container img").position().top + inc;
}
else
{
inc = $("#zoom_container img").position().top - inc;
}
$("#zoom_container img").css({ position: 'relative',top: inc });
});
so as you can see I am incrementing or decrementing the top positioning of the image by 10% of it's height each click, how can I make sure the top of the image will never go further down than the top of the viewport and the bottom of the image never further up than the bottom of the viewport?
Is there a better more efficient way of achieving the same result?
Have a try this one.
<html>
<head>
<title>Canvas Sizing</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.0/jquery.min.js"></script>
<script type="text/javascript">
$(function() {
var canvasContext;
resizeCanvas();
$(window).resize(function() { resizeCanvas() });
function resizeCanvas()
{
var w = window.innerWidth - 40;
var h = window.innerHeight - 40;
var canvasString = '<canvas id="mainCanvas" width="' + w + '" height="' + h + '">Canvas is not supported</canvas>';
$('#contentholder').empty();
$(canvasString).appendTo('#contentholder');
canvasContext = $('#mainCanvas').get(0).getContext('2d');
drawOnCanvas();
}
function drawOnCanvas()
{
var x = 15;
var y = 35;
canvasContext.font = "30pt serif";
canvasContext.fillStyle="#0f0";
canvasContext.fillText("Hello World!", x, y);
}
});
</script>
<style>
#mainCanvas
{
background-color: #000;
border: solid 3px #0F0;
}
body
{
background: #000;
}
#contentholder
{
width: 99%;
height: 99%;
margin: auto;
}
</style
</head>
<body>
<div id="contentholder"></div>
</body>