So I have 2, or more skeletons for an animation (so, 2 or more json files). I want them to play at the same time and 10 seconds after, to play another animation.
Problem is that there is only one animation playing, and the second isn't displayed.
The way I'm doing it is the following:
<canvas id="animationCanvas" width="240" height="240"></canvas>
<script>
var first = true,
rendererFirst = new spine.SkeletonRenderer('http://someurl.com/images/'),
spineAFirst = /* My JSON Code */,
parsedFirst = JSON.parse(spineAFirst);
rendererFirst.scale = 0.2;
rendererFirst.load(spineAFirst);
rendererFirst.state.data.defaultMix = 1.0;
for (var i in parsedFirst.animations) {
if (first) {
first = false;
rendererFirst.state.setAnimationByName(0, i, true);
} else {
rendererFirst.state.addAnimationByName(0, i, true, 10);
}
}
rendererFirst.skeleton.x = 120;
rendererFirst.skeleton.y = 120;
rendererFirst.animate('animationCanvas');
</script>
And, of course, I'm doing it twice (or more). I tried as well with a single SkeletonRenderer, just loading (and setting or adding) animations as many times as I need, and it didn't worked.
It seems that the renderer is cleaning the canvas each time it is called, the better way to achieve this seems to create a canvas for each animation, and bind a renderer to each one.
Related
about month ago i asked how to quee animatations for objects in Fabric.js to which i got response from #nickvans. This is the code. Based on this I changed the code and created with HTML5 drag and drop, aplication which allows you to give to each object on canvas its own set of different commands. Basicly creating moving scene. Mine 1st question is :if it is possible to also use sprites. So instead of the triangle in the exmaple below it would be animated sprite that would also change its position. And 2nd question is it possible to somehow add text field that would follow the object during its movement? Something like those comics bubles.
Thanks in advance for any tips
function startAnimationQueue(animationQueue){
// queues up the animations for the shape
var runningDuration = 0; // variable that adds up the animationQueue durations
for (var i=0; i<animationQueue.length; i++){
var animationDefinition = animationQueue[i];
// Create a closure around the animationDefiniton so that each setTimeout gets sequential animationDefinition inputs
var fn = (function(animationDefinition){
return function(){
triangle.animate('left', animationDefinition.left, {duration: animationDefinition.duration, onChange:canvas.renderAll.bind(canvas)})
triangle.animate('top', animationDefinition.top, {duration: animationDefinition.duration, onChange:canvas.renderAll.bind(canvas)})
// Note: you can animate additional attributes here if you want, just add additional attributes to the objects in
// the animationQueue list. You could also have one of those inputs be the object to be animated in case you want
// to animate multiple objects using the same queue.
};
})
// Create the timeout that will apply the transformations sequentially
// If you want you could set the window.setTimeout to a variable that you could destroy if you need
// to interrupt the animation queue after you create it (but before it finishes)
window.setTimeout(fn(animationDefinition), runningDuration);
// set the next setTimeout duration to be .duration later than the previous one
// this makes the second animation fire after the first one completes
runningDuration += animationDefinition.duration;
}
}
document.onreadystatechange = function () {
if (document.readyState == "complete") {
// I put the canvas init stuff in here because of (I think) a failed race condition or something that caused
// your original method to fail in Chrome
window.canvas = new fabric.Canvas('scene');
window.triangle = new fabric.Triangle({
width: 30
, height: 30
, fill: 'red'
, left: 30
, top: 0
});
window.canvas.add(window.triangle);
window.canvas.renderAll();
// Create a list of animations to apply
var animationQueue = [
{"left": "+=0", "top": "+=100", "duration": 1000},
{"left": "+=55", "top": "+=0", "duration": 2000}
]
// Apply the animations in sequence using window.setTimeout
startAnimationQueue(animationQueue);
}
}
and HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JS Bin</title>
<script src="http://cdnjs.cloudflare.com/ajax/libs/fabric.js/1.4.0/fabric.min.js"></script>
</head>
<body>
<canvas id="scene" width="400" height="400" />
</body>
</html>
I've been trying to figure out how to run an infinite loop while pausing for user click, then allow for a break out.
When the loop starts, the user is presented with an image, and must choose the identical image from one of 4 displayed. If they successfully click the match within 5 seconds, they are presented another image, and the game goes on.
If they either choose an incorrect image, or 5 seconds elapses, the game ends.
I've got all of the functionality worked out, except this pause while waiting for a click or the time to expire.
Ideally, I'd also like the time to be adjustable on each iteration. Say start at 5 seconds, then shorten the time slightly (10ms) on each loop.
I believe it must be solvable using setTimeout() or setInterval(), but just can't wrap my head around it.
Here is a minimal concept of what I'm trying to accomplish.
$('#playnow').on('click',function(){
var speed = 5000;
var speed_reduce = 10;
var game_running = true;
/* create array of images */
var imgs = ['puppy.png','kitten.png','bunny.png','goldfish.png'];
var runnow = setInterval(
function(){
//get random image from loaded theme
rand_img = imgs[Math.floor(Math.random() * imgs.length) ];
//display chosen image
$('#goal_image').html('<img src="'+theme_dir+rand_img+'" />');
// wait up to 5 seconds for user to click or time to expire
if(*clicked and matched*){
//get new random image and reset timer (less 10ms)
}
if(*time expired*){
//bail out and game ends
}
/* reduce time */
speed -= speed_reduce;
},
speed);
});
You'll want something like this I think:
var speed = 5000, // the initial time
currentimage,
timer,
gamerunning;
function newimage(){
var imgs = ['puppy.png','kitten.png','bunny.png','goldfish.png'];
currentimage=Math.floor(Math.random() * imgs.length);
$('#goal_image').html('<img src="'+theme_dir+imgs[currentimage]+'" />');
timer = setTimeout(speed, lost)
}
function answer(id){
if(!gamerunning){return}
clearTimeout(timer)
if(id==currentimage){
speed -= 10; // time decrease every time.
newimage();
}else{
lost()
}
}
function lost(){
gamerunning=0;
speed=5000;
// what to do when lost.
}
$("#puppy").on("click",function(){answer(0)}); // here #puppy is the id of the answer image, and 0 the index in the imgs array.
$("#kitten").on("click",function(){answer(1)});
$("#bunny").on("click",function(){answer(2)});
$("#fish").on("click",function(){answer(3)});
$("#gamestartbutton").on("click",function(){gamerunning=1})
One way to solve this problem is to use setTimeout() and clearTimeout() rather than setInterval. Also, you need some event for the successful button click (I've pretended you have a special "#successfulmatch" button):
var speed = 5000;
var speed_reduce = 10;
var game_running = true;
var imgs = ['puppy.png','kitten.png','bunny.png','goldfish.png'];
var myTimeout;
function runNow(speed){
rand_img = imgs[Math.floor(Math.random() * imgs.length) ];
$('#goal_image').html('<img src="'+theme_dir+rand_img+'" />');
// Keep track of the timeout so we can cancel it later if the user clicks fast enough.
myTimeout = window.setTimeout(function(){
game_running = false;
gameEnds();
},speed);
}
$('#successfulmatch').on('click',function(){
if(game_running){
// Cancel the timeout because the user was fast enough
window.clearTimeout(myTimeout);
// Give the user less time than before
runNow(speed - speed_reduce);
}
else{
// Throw an error: you forgot to hide the clickable buttons when the game ended.
}
}
$('#playnow').on('click',function(){
runNow(speed);
}
Looks like you are mixing the logic for checking "has the user clicked the image? was it correct?" with the one for checking "has time expired?"
You can listen for onclick events on the images
and set a timeout event for the game over
so the user has to cancel that timer, to cancel imminent game over, by clicking on the images
if the right image is clicked the timer is reset
if not, it's game over
you can cancel a timeout event before it runs with cancelTimeout()
see W3C here for a reference.
here is a quick prototype:
$('#playnow').on('click', function() {
var speed = 5000;
var speed_reduce = 10;
var game_running = true;
/* create array of images */
var imgs = ['puppy.png', 'kitten.png', 'bunny.png', 'goldfish.png'];
// function that ends the game if it's called
function gameover() {
alert("GAME OVER");
game_running = false;
}
// in order to use clearTimeout() you must store the timer in a global variable
// setting a timeout that will end the game if it's not cleared before
window.timer = setTimeout(gameover, speed);
// function that is called whenever the user clicks on a image
function onclickimage(event) {
if (!game_running) return;
if ( /*clicked right img*/ ) {
// get random image from loaded theme
var rand_img = imgs[Math.floor(Math.random() * imgs.length)];
// display chosen image
$('#goal_image').html('<img src="' + theme_dir + rand_img + '" />');
// delete timer, user now has one more opportunity
clearTimeout(timer);
// speed is less 10ms
speed -= speed_reduce;
// launch timer again
window.gametimer = setTimeout(loop, speed);
} else { // if click did not match correct image
gameover();
}
}
});
Well, firstly, you need to clearInterval() when they either click or fail in order to stop the current interval. Then, you can restart an interval with the new speed. The interval seems to be working for.
Every 5 seconds a new picture is displayed. So, you want an onclick event for the picture that clears the interval and starts a new one. So, you may want to use setTimeout instead of setInterval since it is only a single iteration at a time.
You could use setInterval, I suppose, but there's no real benefit to it. This way also makes it relatively easy to reduce the speed each time.
I am using EaselJS and want to create a flashing color rectangle that will flash a certain number of times when a button is pressed, displaying random colors from an array. It should stop after 10 color flashes and then I want to extract the final color.
So far the relevant code I have is:
var colorArray = ["#FE7B62","#CB2DD3","#F1FD66","#004CE8","#FFD068", "#02A97E"];
square = new createjs.Shape();
square.graphics.beginFill("#000").drawRoundRect(850, 50, 100, 100, 20);
function pushButton(event) {
square.graphics.inject(animateColor);
}
function animateColor(event) {
this.fillStyle = colorArray[parseInt(Math.random()*6)];
}
This code successfully triggers the flashing of colors from my color array, but I am not sure what the best method of running the animation for a limited number of frames is. I tried pausing the ticker and restarting it on the onclick of the button but that failed. I also tried using a for loop in the pushButton function but that caused a "too much recursion error" in the browser. Here is my full file link https://github.com/RMehta95/sherman-land/blob/master/main.js.
I would suggest creating an event to trigger your action (xamountOfFrames). Here is a link to some information that might help
http://www.w3schools.com/tags/ref_eventattributes.asp
I ended up not using the inject function and instead redrawing the shape each time, creating a couple counter and timer variables to ensure that it looped through the proper amount of times.
function pushButton() {
if (timer === false) {
animate = setInterval(animateColor, 200);
timer = true;
}
}
function animateColor() {
square.graphics.clear();
displayColor = colorArray[Math.floor(Math.random()*colorArray.length)];
square.graphics.beginFill(displayColor).drawRoundRect(850, 50, 100, 100, 20);
counter++;
if (counter===15) {
clearInterval(animate);
counter=0;
movePlayer(displayColor);
timer = false;
return;
}
}
My end goal is pretty simple. Once a page loads, I want an image to appear, but I want it to be constantly switching. (Ultimately, to make a fish look like it's bobbing up and down).
Right now my code looks like this:
var myFish = new Image();
var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
myFish.onload = function(){
context.drawImage(myFish, 100, 30, 200, 137);
};
myFish.src = "img/fish.png";
I'm not using JQuery, just straight javascript. How could I constantly switch back and forth between this image, and another image saved in the same directory.
Thank you!
You'll need to use the timer functions
function updateImageSrcHere()
{
//Update Image src
}
//Interval is measured in MS so 1000 = 1 second
var interval = 1000;
setInterval(updateImageSrcHere, interval);
I'm learning javascript by using the easeljs library to make a simple game, for school lessons.
I want to make a crosshair give some feedback to the player by showing a small animation while you are pointing at your target, using a hittest I made.
However, when the crosshair touches the target, the animation (should be two little triangles pointing to the middle of the crosshair) seems to be stuck on it's first frame.
Here is a bit of my code, I put both of these functions inside a ticker function. The functions do what they're supposed to do (I checked by sending a message to the console.log), but I think the animation is reset as soon as the variable "hitTestControle" is set to true, at every tick.
If you want to check out all of the code, here is a link to the "game":
http://athena.fhict.nl/users/i279907/achtergrond/achtergrond.html
function hitTest() {
if(distance(crossHair, block) < 60) {
hitTestControle = true;
} else {
hitTestControle = false;
console.log(hitTestControle);
}
}
function hitTestControl() {
if(hitTestControle == true) {
crossHair.gotoAndPlay("move");
console.log("hit");
} else {
crossHair.gotoAndPlay("stop");
}
}
PS: There also seems to be something wrong with this hittest I used.
function distance() {
var difx = blok.x - crossHair.x;
var dify = blok.y - crossHair.y;
return Math.sqrt( (difx * difx) + (dify * dify) );
}
It looks like you're starting the animation... setting it to the first frame and starting it... every time hitTestControle is true. Since hitTestControle will be true as long as you're hovering over the target, the animation will never reach the second frame.
What you need to do is start the animation when you transition from hitTestControle = false to hitTestControle = true, but once that happens you just let it play automatically.
Try changing your hitTestControl() function to something like this:
function hitTestControl() {
if(hitTestControle == true && alreadyOverHit == false) {
crossHair.gotoAndPlay("move");
alreadyOverHit = true;
console.log("hit");
} else {
crossHair.gotoAndPlay("stop");
alreadyOverHit = false;
}
}
In other words, only start the animation once, during the first frame you're detecting a hit, and then don't touch it unless you move off the target and back on.