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abacus.animation.js
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abacus.animation.js
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module('Animation');
test('animation defined functions exists', 3, function() {
ok( Abacus.animation, 'animation exists' );
ok( Abacus.animation.layer, 'animation.layer exists' );
ok( Abacus.animation.frame, 'animation.frame exists' );
});
test('animation methods', 5, function() {
var animation = Abacus.animation({});
ok( animation.reset, 'animation.reset exists' );
ok( animation.start, 'animation.start exists' );
ok( animation.stop, 'animation.stop exists' );
ok( animation.addLayer, 'animation.addLayer exists' );
ok( animation.layer, 'animation.layer exists' );
});
test('layer methods', 5, function() {
var layer = Abacus.animation.layer();
ok( layer.reset, 'layer.reset exists' );
ok( layer.step, 'layer.step exists' );
ok( layer.addFrame, 'layer.addFrame exists' );
ok( layer.removeFrame, 'layer.removeFrame exists' );
ok( layer.getFrame, 'layer.getFrame exists' );
});
test('animation() fails', 1, function() {
raises(function() {
Abacus.animation();
}, 'animation() cannot be called without options object');
});
test('layer.step updates values', 2, function() {
var position = [0, 0],
layer = Abacus.animation.layer({
tween: 'linear'
}).addFrame({
index: 0,
value: [0, 0]
}).addFrame({
index: 10,
value: [1, 1]
});
layer.step({rate: 5}, position, {sinceStart: 1000});
equal( position[0], 0.5 );
equal( position[1], 0.5 );
});
test('layer.step moves to correct frame', 2, function() {
var obj = { 'x': 0, 'y': 0 },
layer = Abacus.animation.layer({
tween: 'linear'
}).addFrame({
index: 0,
value: {'x': 0, 'y': 0}
}).addFrame({
index: 5,
value: {'x': 1, 'y': 1}
}).addFrame({
index: 10,
value: {'x': 3, 'y': 2}
});
layer.step({ rate: 5 }, obj, { sinceStart: 1500 });
equal( obj.x, 2 );
equal( obj.y, 1.5 );
});
test('layer.step returns false after completion', function() {
var layer = Abacus.animation.layer({
tween: 'linear'
}).addFrame({
index: 0,
value: []
}).addFrame({
index: 10,
value: []
});
ok( !layer.step({ rate: 5 }, [], { sinceStart: 3000 }) );
ok( !layer.step({ rate: 5 }, [], { sinceStart: 4000 }) );
});
test('layer.step calls beforeTween and afterTween', 2, function() {
var layer = Abacus.animation.layer({
tween: 'linear'
}).addFrame({
index: 10,
value: [],
beforeTween: function() {
ok( true, 'before' );
},
afterTween: function() {
ok( true, 'and after' );
}
});
layer.step({ rate: 5 }, [], { sinceStart: 3000 });
layer.step({ rate: 5 }, [], { sinceStart: 4000 });
});
asyncTest('animation stops timer after completion', 3, function() {
var timePlayed = 0,
animation = Abacus.animation({
rate: 60,
tween: 'linear'
});
animation.layer().addFrame({
index: 0,
value: []
}).addFrame({
index: 10,
value: [],
afterTween: function() {
timePlayed = animation.timer.timing.sinceStart;
}
});
animation.start([]);
setTimeout(function() {
ok( timePlayed > 1000/6, 'timePlayed (' + timePlayed + ') > ' + Math.floor(1000/6) );
equal( animation.layers[0].frameIndex, -1, 'auto-reset to start of animatio' );
ok( animation.timer.isPaused );
if ( !animation.timer.isPaused ) {
animation.timer.pause();
}
start();
}, 300);
});
test('layer works with typed arrays', 7, function() {
ok( window.Float32Array, 'browser supports Float32Array' );
var floatArray = new Float32Array([0,0]),
layer = Abacus.animation.layer({
tween: 'linear'
}).addFrame({
index: 0,
value: [0, 0]
}).addFrame({
index: 10,
value: [1, 1]
});
layer.step({ rate: 5 }, floatArray, { sinceStart: 1000 });
ok( floatArray instanceof Float32Array );
equal( floatArray[0], 0.5 );
equal( floatArray[1], 0.5 );
layer = Abacus.animation.layer({
tween: 'linear'
}).addFrame({
index: 0,
value: new Float32Array([0, 0])
}).addFrame({
index: 10,
value: new Float32Array([1, 1])
});
layer.step({ rate: 5 }, floatArray, { sinceStart: 1000 });
ok( floatArray instanceof Float32Array );
equal( floatArray[0], 0.5 );
equal( floatArray[1], 0.5 );
});
test('animation{instance}.layer throws errors for bad arguments', 2, function() {
var animation = Abacus.animation({}),
options = {
index: 0,
tween: 'linear'
};
raises(function() {
animation.layer( options );
}, function( e ) {
return e.hasOwnProperty('argument') && e.argument == options;
}, 'exception on specifying options with index of a layer that doesn\'t exist' );
raises(function() {
animation.layer(true);
}, function( e ) {
return e.hasOwnProperty('argument') && e.argument === true;
}, 'exception on specifying option as something other than undefined, integer, or object' );
});