lottie-web
Version:
After Effects plugin for exporting animations to SVG + JavaScript or canvas + JavaScript
233 lines (216 loc) • 8.24 kB
JavaScript
import {
extendPrototype,
} from '../functionExtensions';
import PropertyFactory from '../PropertyFactory';
import Matrix from '../../3rd_party/transformation-matrix';
import TransformPropertyFactory from '../TransformProperty';
import {
ShapeModifier,
} from './ShapeModifiers';
function RepeaterModifier() {}
extendPrototype([ShapeModifier], RepeaterModifier);
RepeaterModifier.prototype.initModifierProperties = function (elem, data) {
this.getValue = this.processKeys;
this.c = PropertyFactory.getProp(elem, data.c, 0, null, this);
this.o = PropertyFactory.getProp(elem, data.o, 0, null, this);
this.tr = TransformPropertyFactory.getTransformProperty(elem, data.tr, this);
this.so = PropertyFactory.getProp(elem, data.tr.so, 0, 0.01, this);
this.eo = PropertyFactory.getProp(elem, data.tr.eo, 0, 0.01, this);
this.data = data;
if (!this.dynamicProperties.length) {
this.getValue(true);
}
this._isAnimated = !!this.dynamicProperties.length;
this.pMatrix = new Matrix();
this.rMatrix = new Matrix();
this.sMatrix = new Matrix();
this.tMatrix = new Matrix();
this.matrix = new Matrix();
};
RepeaterModifier.prototype.applyTransforms = function (pMatrix, rMatrix, sMatrix, transform, perc, inv) {
var dir = inv ? -1 : 1;
var scaleX = transform.s.v[0] + (1 - transform.s.v[0]) * (1 - perc);
var scaleY = transform.s.v[1] + (1 - transform.s.v[1]) * (1 - perc);
pMatrix.translate(transform.p.v[0] * dir * perc, transform.p.v[1] * dir * perc, transform.p.v[2]);
rMatrix.translate(-transform.a.v[0], -transform.a.v[1], transform.a.v[2]);
rMatrix.rotate(-transform.r.v * dir * perc);
rMatrix.translate(transform.a.v[0], transform.a.v[1], transform.a.v[2]);
sMatrix.translate(-transform.a.v[0], -transform.a.v[1], transform.a.v[2]);
sMatrix.scale(inv ? 1 / scaleX : scaleX, inv ? 1 / scaleY : scaleY);
sMatrix.translate(transform.a.v[0], transform.a.v[1], transform.a.v[2]);
};
RepeaterModifier.prototype.init = function (elem, arr, pos, elemsData) {
this.elem = elem;
this.arr = arr;
this.pos = pos;
this.elemsData = elemsData;
this._currentCopies = 0;
this._elements = [];
this._groups = [];
this.frameId = -1;
this.initDynamicPropertyContainer(elem);
this.initModifierProperties(elem, arr[pos]);
while (pos > 0) {
pos -= 1;
// this._elements.unshift(arr.splice(pos,1)[0]);
this._elements.unshift(arr[pos]);
}
if (this.dynamicProperties.length) {
this.k = true;
} else {
this.getValue(true);
}
};
RepeaterModifier.prototype.resetElements = function (elements) {
var i;
var len = elements.length;
for (i = 0; i < len; i += 1) {
elements[i]._processed = false;
if (elements[i].ty === 'gr') {
this.resetElements(elements[i].it);
}
}
};
RepeaterModifier.prototype.cloneElements = function (elements) {
var newElements = JSON.parse(JSON.stringify(elements));
this.resetElements(newElements);
return newElements;
};
RepeaterModifier.prototype.changeGroupRender = function (elements, renderFlag) {
var i;
var len = elements.length;
for (i = 0; i < len; i += 1) {
elements[i]._render = renderFlag;
if (elements[i].ty === 'gr') {
this.changeGroupRender(elements[i].it, renderFlag);
}
}
};
RepeaterModifier.prototype.processShapes = function (_isFirstFrame) {
var items;
var itemsTransform;
var i;
var dir;
var cont;
var hasReloaded = false;
if (this._mdf || _isFirstFrame) {
var copies = Math.ceil(this.c.v);
if (this._groups.length < copies) {
while (this._groups.length < copies) {
var group = {
it: this.cloneElements(this._elements),
ty: 'gr',
};
group.it.push({
a: { a: 0, ix: 1, k: [0, 0] }, nm: 'Transform', o: { a: 0, ix: 7, k: 100 }, p: { a: 0, ix: 2, k: [0, 0] }, r: { a: 1, ix: 6, k: [{ s: 0, e: 0, t: 0 }, { s: 0, e: 0, t: 1 }] }, s: { a: 0, ix: 3, k: [100, 100] }, sa: { a: 0, ix: 5, k: 0 }, sk: { a: 0, ix: 4, k: 0 }, ty: 'tr',
});
this.arr.splice(0, 0, group);
this._groups.splice(0, 0, group);
this._currentCopies += 1;
}
this.elem.reloadShapes();
hasReloaded = true;
}
cont = 0;
var renderFlag;
for (i = 0; i <= this._groups.length - 1; i += 1) {
renderFlag = cont < copies;
this._groups[i]._render = renderFlag;
this.changeGroupRender(this._groups[i].it, renderFlag);
if (!renderFlag) {
var elems = this.elemsData[i].it;
var transformData = elems[elems.length - 1];
if (transformData.transform.op.v !== 0) {
transformData.transform.op._mdf = true;
transformData.transform.op.v = 0;
} else {
transformData.transform.op._mdf = false;
}
}
cont += 1;
}
this._currentCopies = copies;
/// /
var offset = this.o.v;
var offsetModulo = offset % 1;
var roundOffset = offset > 0 ? Math.floor(offset) : Math.ceil(offset);
var pProps = this.pMatrix.props;
var rProps = this.rMatrix.props;
var sProps = this.sMatrix.props;
this.pMatrix.reset();
this.rMatrix.reset();
this.sMatrix.reset();
this.tMatrix.reset();
this.matrix.reset();
var iteration = 0;
if (offset > 0) {
while (iteration < roundOffset) {
this.applyTransforms(this.pMatrix, this.rMatrix, this.sMatrix, this.tr, 1, false);
iteration += 1;
}
if (offsetModulo) {
this.applyTransforms(this.pMatrix, this.rMatrix, this.sMatrix, this.tr, offsetModulo, false);
iteration += offsetModulo;
}
} else if (offset < 0) {
while (iteration > roundOffset) {
this.applyTransforms(this.pMatrix, this.rMatrix, this.sMatrix, this.tr, 1, true);
iteration -= 1;
}
if (offsetModulo) {
this.applyTransforms(this.pMatrix, this.rMatrix, this.sMatrix, this.tr, -offsetModulo, true);
iteration -= offsetModulo;
}
}
i = this.data.m === 1 ? 0 : this._currentCopies - 1;
dir = this.data.m === 1 ? 1 : -1;
cont = this._currentCopies;
var j;
var jLen;
while (cont) {
items = this.elemsData[i].it;
itemsTransform = items[items.length - 1].transform.mProps.v.props;
jLen = itemsTransform.length;
items[items.length - 1].transform.mProps._mdf = true;
items[items.length - 1].transform.op._mdf = true;
items[items.length - 1].transform.op.v = this._currentCopies === 1
? this.so.v
: this.so.v + (this.eo.v - this.so.v) * (i / (this._currentCopies - 1));
if (iteration !== 0) {
if ((i !== 0 && dir === 1) || (i !== this._currentCopies - 1 && dir === -1)) {
this.applyTransforms(this.pMatrix, this.rMatrix, this.sMatrix, this.tr, 1, false);
}
this.matrix.transform(rProps[0], rProps[1], rProps[2], rProps[3], rProps[4], rProps[5], rProps[6], rProps[7], rProps[8], rProps[9], rProps[10], rProps[11], rProps[12], rProps[13], rProps[14], rProps[15]);
this.matrix.transform(sProps[0], sProps[1], sProps[2], sProps[3], sProps[4], sProps[5], sProps[6], sProps[7], sProps[8], sProps[9], sProps[10], sProps[11], sProps[12], sProps[13], sProps[14], sProps[15]);
this.matrix.transform(pProps[0], pProps[1], pProps[2], pProps[3], pProps[4], pProps[5], pProps[6], pProps[7], pProps[8], pProps[9], pProps[10], pProps[11], pProps[12], pProps[13], pProps[14], pProps[15]);
for (j = 0; j < jLen; j += 1) {
itemsTransform[j] = this.matrix.props[j];
}
this.matrix.reset();
} else {
this.matrix.reset();
for (j = 0; j < jLen; j += 1) {
itemsTransform[j] = this.matrix.props[j];
}
}
iteration += 1;
cont -= 1;
i += dir;
}
} else {
cont = this._currentCopies;
i = 0;
dir = 1;
while (cont) {
items = this.elemsData[i].it;
itemsTransform = items[items.length - 1].transform.mProps.v.props;
items[items.length - 1].transform.mProps._mdf = false;
items[items.length - 1].transform.op._mdf = false;
cont -= 1;
i += dir;
}
}
return hasReloaded;
};
RepeaterModifier.prototype.addShape = function () {};
export default RepeaterModifier;