lottie-web
Version:
After Effects plugin for exporting animations to SVG + JavaScript or canvas + JavaScript
547 lines (514 loc) • 20.2 kB
JavaScript
import {
degToRads,
roundCorner,
bmMin,
} from '../common';
import {
extendPrototype,
} from '../functionExtensions';
import DynamicPropertyContainer from '../helpers/dynamicProperties';
import PropertyFactory from '../PropertyFactory';
import BezierFactory from '../../3rd_party/BezierEaser';
import shapePool from '../pooling/shape_pool';
import shapeCollectionPool from '../pooling/shapeCollection_pool';
const ShapePropertyFactory = (function () {
var initFrame = -999999;
function interpolateShape(frameNum, previousValue, caching) {
var iterationIndex = caching.lastIndex;
var keyPropS;
var keyPropE;
var isHold;
var j;
var k;
var jLen;
var kLen;
var perc;
var vertexValue;
var kf = this.keyframes;
if (frameNum < kf[0].t - this.offsetTime) {
keyPropS = kf[0].s[0];
isHold = true;
iterationIndex = 0;
} else if (frameNum >= kf[kf.length - 1].t - this.offsetTime) {
keyPropS = kf[kf.length - 1].s ? kf[kf.length - 1].s[0] : kf[kf.length - 2].e[0];
/* if(kf[kf.length - 1].s){
keyPropS = kf[kf.length - 1].s[0];
}else{
keyPropS = kf[kf.length - 2].e[0];
} */
isHold = true;
} else {
var i = iterationIndex;
var len = kf.length - 1;
var flag = true;
var keyData;
var nextKeyData;
var keyframeMetadata;
while (flag) {
keyData = kf[i];
nextKeyData = kf[i + 1];
if ((nextKeyData.t - this.offsetTime) > frameNum) {
break;
}
if (i < len - 1) {
i += 1;
} else {
flag = false;
}
}
keyframeMetadata = this.keyframesMetadata[i] || {};
isHold = keyData.h === 1;
iterationIndex = i;
if (!isHold) {
if (frameNum >= nextKeyData.t - this.offsetTime) {
perc = 1;
} else if (frameNum < keyData.t - this.offsetTime) {
perc = 0;
} else {
var fnc;
if (keyframeMetadata.__fnct) {
fnc = keyframeMetadata.__fnct;
} else {
fnc = BezierFactory.getBezierEasing(keyData.o.x, keyData.o.y, keyData.i.x, keyData.i.y).get;
keyframeMetadata.__fnct = fnc;
}
perc = fnc((frameNum - (keyData.t - this.offsetTime)) / ((nextKeyData.t - this.offsetTime) - (keyData.t - this.offsetTime)));
}
keyPropE = nextKeyData.s ? nextKeyData.s[0] : keyData.e[0];
}
keyPropS = keyData.s[0];
}
jLen = previousValue._length;
kLen = keyPropS.i[0].length;
caching.lastIndex = iterationIndex;
for (j = 0; j < jLen; j += 1) {
for (k = 0; k < kLen; k += 1) {
vertexValue = isHold ? keyPropS.i[j][k] : keyPropS.i[j][k] + (keyPropE.i[j][k] - keyPropS.i[j][k]) * perc;
previousValue.i[j][k] = vertexValue;
vertexValue = isHold ? keyPropS.o[j][k] : keyPropS.o[j][k] + (keyPropE.o[j][k] - keyPropS.o[j][k]) * perc;
previousValue.o[j][k] = vertexValue;
vertexValue = isHold ? keyPropS.v[j][k] : keyPropS.v[j][k] + (keyPropE.v[j][k] - keyPropS.v[j][k]) * perc;
previousValue.v[j][k] = vertexValue;
}
}
}
function interpolateShapeCurrentTime() {
var frameNum = this.comp.renderedFrame - this.offsetTime;
var initTime = this.keyframes[0].t - this.offsetTime;
var endTime = this.keyframes[this.keyframes.length - 1].t - this.offsetTime;
var lastFrame = this._caching.lastFrame;
if (!(lastFrame !== initFrame && ((lastFrame < initTime && frameNum < initTime) || (lastFrame > endTime && frameNum > endTime)))) {
/// /
this._caching.lastIndex = lastFrame < frameNum ? this._caching.lastIndex : 0;
this.interpolateShape(frameNum, this.pv, this._caching);
/// /
}
this._caching.lastFrame = frameNum;
return this.pv;
}
function resetShape() {
this.paths = this.localShapeCollection;
}
function shapesEqual(shape1, shape2) {
if (shape1._length !== shape2._length || shape1.c !== shape2.c) {
return false;
}
var i;
var len = shape1._length;
for (i = 0; i < len; i += 1) {
if (shape1.v[i][0] !== shape2.v[i][0]
|| shape1.v[i][1] !== shape2.v[i][1]
|| shape1.o[i][0] !== shape2.o[i][0]
|| shape1.o[i][1] !== shape2.o[i][1]
|| shape1.i[i][0] !== shape2.i[i][0]
|| shape1.i[i][1] !== shape2.i[i][1]) {
return false;
}
}
return true;
}
function setVValue(newPath) {
if (!shapesEqual(this.v, newPath)) {
this.v = shapePool.clone(newPath);
this.localShapeCollection.releaseShapes();
this.localShapeCollection.addShape(this.v);
this._mdf = true;
this.paths = this.localShapeCollection;
}
}
function processEffectsSequence() {
if (this.elem.globalData.frameId === this.frameId) {
return;
} if (!this.effectsSequence.length) {
this._mdf = false;
return;
}
if (this.lock) {
this.setVValue(this.pv);
return;
}
this.lock = true;
this._mdf = false;
var finalValue;
if (this.kf) {
finalValue = this.pv;
} else if (this.data.ks) {
finalValue = this.data.ks.k;
} else {
finalValue = this.data.pt.k;
}
var i;
var len = this.effectsSequence.length;
for (i = 0; i < len; i += 1) {
finalValue = this.effectsSequence[i](finalValue);
}
this.setVValue(finalValue);
this.lock = false;
this.frameId = this.elem.globalData.frameId;
}
function ShapeProperty(elem, data, type) {
this.propType = 'shape';
this.comp = elem.comp;
this.container = elem;
this.elem = elem;
this.data = data;
this.k = false;
this.kf = false;
this._mdf = false;
var pathData = type === 3 ? data.pt.k : data.ks.k;
this.v = shapePool.clone(pathData);
this.pv = shapePool.clone(this.v);
this.localShapeCollection = shapeCollectionPool.newShapeCollection();
this.paths = this.localShapeCollection;
this.paths.addShape(this.v);
this.reset = resetShape;
this.effectsSequence = [];
}
function addEffect(effectFunction) {
this.effectsSequence.push(effectFunction);
this.container.addDynamicProperty(this);
}
ShapeProperty.prototype.interpolateShape = interpolateShape;
ShapeProperty.prototype.getValue = processEffectsSequence;
ShapeProperty.prototype.setVValue = setVValue;
ShapeProperty.prototype.addEffect = addEffect;
function KeyframedShapeProperty(elem, data, type) {
this.propType = 'shape';
this.comp = elem.comp;
this.elem = elem;
this.container = elem;
this.offsetTime = elem.data.st;
this.keyframes = type === 3 ? data.pt.k : data.ks.k;
this.keyframesMetadata = [];
this.k = true;
this.kf = true;
var len = this.keyframes[0].s[0].i.length;
this.v = shapePool.newElement();
this.v.setPathData(this.keyframes[0].s[0].c, len);
this.pv = shapePool.clone(this.v);
this.localShapeCollection = shapeCollectionPool.newShapeCollection();
this.paths = this.localShapeCollection;
this.paths.addShape(this.v);
this.lastFrame = initFrame;
this.reset = resetShape;
this._caching = { lastFrame: initFrame, lastIndex: 0 };
this.effectsSequence = [interpolateShapeCurrentTime.bind(this)];
}
KeyframedShapeProperty.prototype.getValue = processEffectsSequence;
KeyframedShapeProperty.prototype.interpolateShape = interpolateShape;
KeyframedShapeProperty.prototype.setVValue = setVValue;
KeyframedShapeProperty.prototype.addEffect = addEffect;
var EllShapeProperty = (function () {
var cPoint = roundCorner;
function EllShapePropertyFactory(elem, data) {
this.v = shapePool.newElement();
this.v.setPathData(true, 4);
this.localShapeCollection = shapeCollectionPool.newShapeCollection();
this.paths = this.localShapeCollection;
this.localShapeCollection.addShape(this.v);
this.d = data.d;
this.elem = elem;
this.comp = elem.comp;
this.frameId = -1;
this.initDynamicPropertyContainer(elem);
this.p = PropertyFactory.getProp(elem, data.p, 1, 0, this);
this.s = PropertyFactory.getProp(elem, data.s, 1, 0, this);
if (this.dynamicProperties.length) {
this.k = true;
} else {
this.k = false;
this.convertEllToPath();
}
}
EllShapePropertyFactory.prototype = {
reset: resetShape,
getValue: function () {
if (this.elem.globalData.frameId === this.frameId) {
return;
}
this.frameId = this.elem.globalData.frameId;
this.iterateDynamicProperties();
if (this._mdf) {
this.convertEllToPath();
}
},
convertEllToPath: function () {
var p0 = this.p.v[0];
var p1 = this.p.v[1];
var s0 = this.s.v[0] / 2;
var s1 = this.s.v[1] / 2;
var _cw = this.d !== 3;
var _v = this.v;
_v.v[0][0] = p0;
_v.v[0][1] = p1 - s1;
_v.v[1][0] = _cw ? p0 + s0 : p0 - s0;
_v.v[1][1] = p1;
_v.v[2][0] = p0;
_v.v[2][1] = p1 + s1;
_v.v[3][0] = _cw ? p0 - s0 : p0 + s0;
_v.v[3][1] = p1;
_v.i[0][0] = _cw ? p0 - s0 * cPoint : p0 + s0 * cPoint;
_v.i[0][1] = p1 - s1;
_v.i[1][0] = _cw ? p0 + s0 : p0 - s0;
_v.i[1][1] = p1 - s1 * cPoint;
_v.i[2][0] = _cw ? p0 + s0 * cPoint : p0 - s0 * cPoint;
_v.i[2][1] = p1 + s1;
_v.i[3][0] = _cw ? p0 - s0 : p0 + s0;
_v.i[3][1] = p1 + s1 * cPoint;
_v.o[0][0] = _cw ? p0 + s0 * cPoint : p0 - s0 * cPoint;
_v.o[0][1] = p1 - s1;
_v.o[1][0] = _cw ? p0 + s0 : p0 - s0;
_v.o[1][1] = p1 + s1 * cPoint;
_v.o[2][0] = _cw ? p0 - s0 * cPoint : p0 + s0 * cPoint;
_v.o[2][1] = p1 + s1;
_v.o[3][0] = _cw ? p0 - s0 : p0 + s0;
_v.o[3][1] = p1 - s1 * cPoint;
},
};
extendPrototype([DynamicPropertyContainer], EllShapePropertyFactory);
return EllShapePropertyFactory;
}());
var StarShapeProperty = (function () {
function StarShapePropertyFactory(elem, data) {
this.v = shapePool.newElement();
this.v.setPathData(true, 0);
this.elem = elem;
this.comp = elem.comp;
this.data = data;
this.frameId = -1;
this.d = data.d;
this.initDynamicPropertyContainer(elem);
if (data.sy === 1) {
this.ir = PropertyFactory.getProp(elem, data.ir, 0, 0, this);
this.is = PropertyFactory.getProp(elem, data.is, 0, 0.01, this);
this.convertToPath = this.convertStarToPath;
} else {
this.convertToPath = this.convertPolygonToPath;
}
this.pt = PropertyFactory.getProp(elem, data.pt, 0, 0, this);
this.p = PropertyFactory.getProp(elem, data.p, 1, 0, this);
this.r = PropertyFactory.getProp(elem, data.r, 0, degToRads, this);
this.or = PropertyFactory.getProp(elem, data.or, 0, 0, this);
this.os = PropertyFactory.getProp(elem, data.os, 0, 0.01, this);
this.localShapeCollection = shapeCollectionPool.newShapeCollection();
this.localShapeCollection.addShape(this.v);
this.paths = this.localShapeCollection;
if (this.dynamicProperties.length) {
this.k = true;
} else {
this.k = false;
this.convertToPath();
}
}
StarShapePropertyFactory.prototype = {
reset: resetShape,
getValue: function () {
if (this.elem.globalData.frameId === this.frameId) {
return;
}
this.frameId = this.elem.globalData.frameId;
this.iterateDynamicProperties();
if (this._mdf) {
this.convertToPath();
}
},
convertStarToPath: function () {
var numPts = Math.floor(this.pt.v) * 2;
var angle = (Math.PI * 2) / numPts;
/* this.v.v.length = numPts;
this.v.i.length = numPts;
this.v.o.length = numPts; */
var longFlag = true;
var longRad = this.or.v;
var shortRad = this.ir.v;
var longRound = this.os.v;
var shortRound = this.is.v;
var longPerimSegment = (2 * Math.PI * longRad) / (numPts * 2);
var shortPerimSegment = (2 * Math.PI * shortRad) / (numPts * 2);
var i;
var rad;
var roundness;
var perimSegment;
var currentAng = -Math.PI / 2;
currentAng += this.r.v;
var dir = this.data.d === 3 ? -1 : 1;
this.v._length = 0;
for (i = 0; i < numPts; i += 1) {
rad = longFlag ? longRad : shortRad;
roundness = longFlag ? longRound : shortRound;
perimSegment = longFlag ? longPerimSegment : shortPerimSegment;
var x = rad * Math.cos(currentAng);
var y = rad * Math.sin(currentAng);
var ox = x === 0 && y === 0 ? 0 : y / Math.sqrt(x * x + y * y);
var oy = x === 0 && y === 0 ? 0 : -x / Math.sqrt(x * x + y * y);
x += +this.p.v[0];
y += +this.p.v[1];
this.v.setTripleAt(x, y, x - ox * perimSegment * roundness * dir, y - oy * perimSegment * roundness * dir, x + ox * perimSegment * roundness * dir, y + oy * perimSegment * roundness * dir, i, true);
/* this.v.v[i] = [x,y];
this.v.i[i] = [x+ox*perimSegment*roundness*dir,y+oy*perimSegment*roundness*dir];
this.v.o[i] = [x-ox*perimSegment*roundness*dir,y-oy*perimSegment*roundness*dir];
this.v._length = numPts; */
longFlag = !longFlag;
currentAng += angle * dir;
}
},
convertPolygonToPath: function () {
var numPts = Math.floor(this.pt.v);
var angle = (Math.PI * 2) / numPts;
var rad = this.or.v;
var roundness = this.os.v;
var perimSegment = (2 * Math.PI * rad) / (numPts * 4);
var i;
var currentAng = -Math.PI * 0.5;
var dir = this.data.d === 3 ? -1 : 1;
currentAng += this.r.v;
this.v._length = 0;
for (i = 0; i < numPts; i += 1) {
var x = rad * Math.cos(currentAng);
var y = rad * Math.sin(currentAng);
var ox = x === 0 && y === 0 ? 0 : y / Math.sqrt(x * x + y * y);
var oy = x === 0 && y === 0 ? 0 : -x / Math.sqrt(x * x + y * y);
x += +this.p.v[0];
y += +this.p.v[1];
this.v.setTripleAt(x, y, x - ox * perimSegment * roundness * dir, y - oy * perimSegment * roundness * dir, x + ox * perimSegment * roundness * dir, y + oy * perimSegment * roundness * dir, i, true);
currentAng += angle * dir;
}
this.paths.length = 0;
this.paths[0] = this.v;
},
};
extendPrototype([DynamicPropertyContainer], StarShapePropertyFactory);
return StarShapePropertyFactory;
}());
var RectShapeProperty = (function () {
function RectShapePropertyFactory(elem, data) {
this.v = shapePool.newElement();
this.v.c = true;
this.localShapeCollection = shapeCollectionPool.newShapeCollection();
this.localShapeCollection.addShape(this.v);
this.paths = this.localShapeCollection;
this.elem = elem;
this.comp = elem.comp;
this.frameId = -1;
this.d = data.d;
this.initDynamicPropertyContainer(elem);
this.p = PropertyFactory.getProp(elem, data.p, 1, 0, this);
this.s = PropertyFactory.getProp(elem, data.s, 1, 0, this);
this.r = PropertyFactory.getProp(elem, data.r, 0, 0, this);
if (this.dynamicProperties.length) {
this.k = true;
} else {
this.k = false;
this.convertRectToPath();
}
}
RectShapePropertyFactory.prototype = {
convertRectToPath: function () {
var p0 = this.p.v[0];
var p1 = this.p.v[1];
var v0 = this.s.v[0] / 2;
var v1 = this.s.v[1] / 2;
var round = bmMin(v0, v1, this.r.v);
var cPoint = round * (1 - roundCorner);
this.v._length = 0;
if (this.d === 2 || this.d === 1) {
this.v.setTripleAt(p0 + v0, p1 - v1 + round, p0 + v0, p1 - v1 + round, p0 + v0, p1 - v1 + cPoint, 0, true);
this.v.setTripleAt(p0 + v0, p1 + v1 - round, p0 + v0, p1 + v1 - cPoint, p0 + v0, p1 + v1 - round, 1, true);
if (round !== 0) {
this.v.setTripleAt(p0 + v0 - round, p1 + v1, p0 + v0 - round, p1 + v1, p0 + v0 - cPoint, p1 + v1, 2, true);
this.v.setTripleAt(p0 - v0 + round, p1 + v1, p0 - v0 + cPoint, p1 + v1, p0 - v0 + round, p1 + v1, 3, true);
this.v.setTripleAt(p0 - v0, p1 + v1 - round, p0 - v0, p1 + v1 - round, p0 - v0, p1 + v1 - cPoint, 4, true);
this.v.setTripleAt(p0 - v0, p1 - v1 + round, p0 - v0, p1 - v1 + cPoint, p0 - v0, p1 - v1 + round, 5, true);
this.v.setTripleAt(p0 - v0 + round, p1 - v1, p0 - v0 + round, p1 - v1, p0 - v0 + cPoint, p1 - v1, 6, true);
this.v.setTripleAt(p0 + v0 - round, p1 - v1, p0 + v0 - cPoint, p1 - v1, p0 + v0 - round, p1 - v1, 7, true);
} else {
this.v.setTripleAt(p0 - v0, p1 + v1, p0 - v0 + cPoint, p1 + v1, p0 - v0, p1 + v1, 2);
this.v.setTripleAt(p0 - v0, p1 - v1, p0 - v0, p1 - v1 + cPoint, p0 - v0, p1 - v1, 3);
}
} else {
this.v.setTripleAt(p0 + v0, p1 - v1 + round, p0 + v0, p1 - v1 + cPoint, p0 + v0, p1 - v1 + round, 0, true);
if (round !== 0) {
this.v.setTripleAt(p0 + v0 - round, p1 - v1, p0 + v0 - round, p1 - v1, p0 + v0 - cPoint, p1 - v1, 1, true);
this.v.setTripleAt(p0 - v0 + round, p1 - v1, p0 - v0 + cPoint, p1 - v1, p0 - v0 + round, p1 - v1, 2, true);
this.v.setTripleAt(p0 - v0, p1 - v1 + round, p0 - v0, p1 - v1 + round, p0 - v0, p1 - v1 + cPoint, 3, true);
this.v.setTripleAt(p0 - v0, p1 + v1 - round, p0 - v0, p1 + v1 - cPoint, p0 - v0, p1 + v1 - round, 4, true);
this.v.setTripleAt(p0 - v0 + round, p1 + v1, p0 - v0 + round, p1 + v1, p0 - v0 + cPoint, p1 + v1, 5, true);
this.v.setTripleAt(p0 + v0 - round, p1 + v1, p0 + v0 - cPoint, p1 + v1, p0 + v0 - round, p1 + v1, 6, true);
this.v.setTripleAt(p0 + v0, p1 + v1 - round, p0 + v0, p1 + v1 - round, p0 + v0, p1 + v1 - cPoint, 7, true);
} else {
this.v.setTripleAt(p0 - v0, p1 - v1, p0 - v0 + cPoint, p1 - v1, p0 - v0, p1 - v1, 1, true);
this.v.setTripleAt(p0 - v0, p1 + v1, p0 - v0, p1 + v1 - cPoint, p0 - v0, p1 + v1, 2, true);
this.v.setTripleAt(p0 + v0, p1 + v1, p0 + v0 - cPoint, p1 + v1, p0 + v0, p1 + v1, 3, true);
}
}
},
getValue: function () {
if (this.elem.globalData.frameId === this.frameId) {
return;
}
this.frameId = this.elem.globalData.frameId;
this.iterateDynamicProperties();
if (this._mdf) {
this.convertRectToPath();
}
},
reset: resetShape,
};
extendPrototype([DynamicPropertyContainer], RectShapePropertyFactory);
return RectShapePropertyFactory;
}());
function getShapeProp(elem, data, type) {
var prop;
if (type === 3 || type === 4) {
var dataProp = type === 3 ? data.pt : data.ks;
var keys = dataProp.k;
if (keys.length) {
prop = new KeyframedShapeProperty(elem, data, type);
} else {
prop = new ShapeProperty(elem, data, type);
}
} else if (type === 5) {
prop = new RectShapeProperty(elem, data);
} else if (type === 6) {
prop = new EllShapeProperty(elem, data);
} else if (type === 7) {
prop = new StarShapeProperty(elem, data);
}
if (prop.k) {
elem.addDynamicProperty(prop);
}
return prop;
}
function getConstructorFunction() {
return ShapeProperty;
}
function getKeyframedConstructorFunction() {
return KeyframedShapeProperty;
}
var ob = {};
ob.getShapeProp = getShapeProp;
ob.getConstructorFunction = getConstructorFunction;
ob.getKeyframedConstructorFunction = getKeyframedConstructorFunction;
return ob;
}());
export default ShapePropertyFactory;