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Code Issues Actions 3 Packages Projects Releases Wiki Activity

each animation now has its own frame object. This fixes issues that were seen when using multiple animations simultaneously

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This commit is contained in:
Eric Rowell
2012-12-11 22:34:58 -08:00
parent 16f81f6204
commit 3fb9576672
2 changed files with 79 additions and 15 deletions
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32
src/Animation.js
View File

@@ -12,6 +12,11 @@
this.func = func;
this.node = node;
this.id = Kinetic.Animation.animIdCounter++;
this.frame = {
time: 0,
timeDiff: 0,
lastTime: new Date().getTime()
};
};
/*
* Animation methods
@@ -24,6 +29,8 @@
*/
start: function() {
this.stop();
this.frame.timeDiff = 0;
this.frame.lastTime = new Date().getTime();
Kinetic.Animation._addAnimation(this);
Kinetic.Animation._handleAnimation();
},
@@ -34,17 +41,18 @@
*/
stop: function() {
Kinetic.Animation._removeAnimation(this);
},
_updateFrameObject: function() {
var time = new Date().getTime();
this.frame.timeDiff = time - this.frame.lastTime;
this.frame.lastTime = time;
this.frame.time += this.frame.timeDiff;
this.frame.frameRate = 1000 / this.frame.timeDiff;
}
};
Kinetic.Animation.animations = [];
Kinetic.Animation.animIdCounter = 0;
Kinetic.Animation.animRunning = false;
Kinetic.Animation.frame = {
time: 0,
timeDiff: 0,
lastTime: new Date().getTime(),
frameRate: 0
};
Kinetic.Animation.fixedRequestAnimFrame = function(callback) {
window.setTimeout(callback, 1000 / 60);
@@ -63,15 +71,8 @@
}
}
};
Kinetic.Animation._updateFrameObject = function() {
var time = new Date().getTime();
this.frame.timeDiff = time - this.frame.lastTime;
this.frame.lastTime = time;
this.frame.time += this.frame.timeDiff;
this.frame.frameRate = 1000 / this.frame.timeDiff;
};
Kinetic.Animation._runFrames = function() {
this._updateFrameObject();
var nodes = {};
/*
* loop through all animations and execute animation
@@ -82,12 +83,13 @@
*/
for(var n = 0; n < this.animations.length; n++) {
var anim = this.animations[n];
anim._updateFrameObject();
if(anim.node && anim.node._id !== undefined) {
nodes[anim.node._id] = anim.node;
}
// if animation object has a function, execute it
if(anim.func) {
anim.func(this.frame);
anim.func(anim.frame);
}
}

62
tests/js/manualTests.js
View File

@@ -177,6 +177,68 @@ Test.Modules.MANUAL = {
anim.stop();
}, 3000);
},
'*ANIMATION - test multiple animations': function(containerId) {
var stage = new Kinetic.Stage({
container: containerId,
width: 578,
height: 200
});
var layer = new Kinetic.Layer();
var greenRect = new Kinetic.Rect({
x: 200,
y: 20,
width: 100,
height: 50,
fill: 'green',
stroke: 'black',
strokeWidth: 4
});
var blueRect = new Kinetic.Rect({
x: 200,
y: 100,
width: 100,
height: 50,
fill: 'blue',
stroke: 'black',
strokeWidth: 4
});
layer.add(greenRect);
layer.add(blueRect);
stage.add(layer);
var amplitude = 150;
var period = 1000;
// in ms
var centerX = stage.getWidth() / 2 - 100 / 2;
var greenAnim = new Kinetic.Animation(function(frame) {
greenRect.setX(amplitude * Math.sin(frame.time * 2 * Math.PI / period) + centerX);
}, layer);
var blueAnim = new Kinetic.Animation(function(frame) {
blueRect.setX(amplitude * Math.sin(frame.time * 2 * Math.PI / period) + centerX);
}, layer);
greenAnim.start();
setTimeout(function() {
blueAnim.start();
}, 1000);
setTimeout(function() {
greenAnim.stop();
}, 2000);
setTimeout(function() {
blueAnim.stop();
}, 3000);
setTimeout(function() {
greenAnim.start();
}, 4000);
setTimeout(function() {
greenAnim.stop();
}, 5000);
},
'TRANSITION - ease-in, ease-out, ease-in-out hovers': function(containerId) {
function addHovers(shape, easing) {
shape.on("mouseover", function() {