lottie-web
Version:
After Effects plugin for exporting animations to SVG + JavaScript or canvas + JavaScript
223 lines (189 loc) • 7.42 kB
JavaScript
import {
extendPrototype,
} from '../functionExtensions';
import {
ShapeModifiers,
ShapeModifier,
} from './ShapeModifiers';
function MouseModifier() {}
extendPrototype([ShapeModifier], MouseModifier);
MouseModifier.prototype.processKeys = function (forceRender) {
if (this.elem.globalData.frameId === this.frameId && !forceRender) {
return;
}
this._mdf = true;
};
MouseModifier.prototype.addShapeToModifier = function () {
this.positions.push([]);
};
MouseModifier.prototype.processPath = function (path, mouseCoords, positions) {
var i;
var len = path.v.length;
var vValues = [];
var oValues = [];
var iValues = [];
var theta;
var x;
var y;
/// / OPTION A
for (i = 0; i < len; i += 1) {
if (!positions.v[i]) {
positions.v[i] = [path.v[i][0], path.v[i][1]];
positions.o[i] = [path.o[i][0], path.o[i][1]];
positions.i[i] = [path.i[i][0], path.i[i][1]];
positions.distV[i] = 0;
positions.distO[i] = 0;
positions.distI[i] = 0;
}
theta = Math.atan2(
path.v[i][1] - mouseCoords[1],
path.v[i][0] - mouseCoords[0]
);
x = mouseCoords[0] - positions.v[i][0];
y = mouseCoords[1] - positions.v[i][1];
var distance = Math.sqrt((x * x) + (y * y));
positions.distV[i] += (distance - positions.distV[i]) * this.data.dc;
positions.v[i][0] = (Math.cos(theta) * Math.max(0, this.data.maxDist - positions.distV[i])) / 2 + (path.v[i][0]);
positions.v[i][1] = (Math.sin(theta) * Math.max(0, this.data.maxDist - positions.distV[i])) / 2 + (path.v[i][1]);
theta = Math.atan2(
path.o[i][1] - mouseCoords[1],
path.o[i][0] - mouseCoords[0]
);
x = mouseCoords[0] - positions.o[i][0];
y = mouseCoords[1] - positions.o[i][1];
distance = Math.sqrt((x * x) + (y * y));
positions.distO[i] += (distance - positions.distO[i]) * this.data.dc;
positions.o[i][0] = (Math.cos(theta) * Math.max(0, this.data.maxDist - positions.distO[i])) / 2 + (path.o[i][0]);
positions.o[i][1] = (Math.sin(theta) * Math.max(0, this.data.maxDist - positions.distO[i])) / 2 + (path.o[i][1]);
theta = Math.atan2(
path.i[i][1] - mouseCoords[1],
path.i[i][0] - mouseCoords[0]
);
x = mouseCoords[0] - positions.i[i][0];
y = mouseCoords[1] - positions.i[i][1];
distance = Math.sqrt((x * x) + (y * y));
positions.distI[i] += (distance - positions.distI[i]) * this.data.dc;
positions.i[i][0] = (Math.cos(theta) * Math.max(0, this.data.maxDist - positions.distI[i])) / 2 + (path.i[i][0]);
positions.i[i][1] = (Math.sin(theta) * Math.max(0, this.data.maxDist - positions.distI[i])) / 2 + (path.i[i][1]);
/// //OPTION 1
vValues.push(positions.v[i]);
oValues.push(positions.o[i]);
iValues.push(positions.i[i]);
/// //OPTION 2
// vValues.push(positions.v[i]);
// iValues.push([path.i[i][0]+(positions.v[i][0]-path.v[i][0]),path.i[i][1]+(positions.v[i][1]-path.v[i][1])]);
// oValues.push([path.o[i][0]+(positions.v[i][0]-path.v[i][0]),path.o[i][1]+(positions.v[i][1]-path.v[i][1])]);
/// //OPTION 3
// vValues.push(positions.v[i]);
// iValues.push(path.i[i]);
// oValues.push(path.o[i]);
/// //OPTION 4
// vValues.push(path.v[i]);
// oValues.push(positions.o[i]);
// iValues.push(positions.i[i]);
}
/// / OPTION B
/* for(i=0;i<len;i+=1){
if(!positions.v[i]){
positions.v[i] = [path.v[i][0],path.v[i][1]];
positions.o[i] = [path.o[i][0],path.o[i][1]];
positions.i[i] = [path.i[i][0],path.i[i][1]];
positions.distV[i] = 0;
}
theta = Math.atan2(
positions.v[i][1] - mouseCoords[1],
positions.v[i][0] - mouseCoords[0]
);
x = mouseCoords[0] - positions.v[i][0];
y = mouseCoords[1] - positions.v[i][1];
var distance = this.data.ss * this.data.mx / Math.sqrt( (x * x) + (y * y) );
positions.v[i][0] += Math.cos(theta) * distance + (path.v[i][0] - positions.v[i][0]) * this.data.dc;
positions.v[i][1] += Math.sin(theta) * distance + (path.v[i][1] - positions.v[i][1]) * this.data.dc;
theta = Math.atan2(
positions.o[i][1] - mouseCoords[1],
positions.o[i][0] - mouseCoords[0]
);
x = mouseCoords[0] - positions.o[i][0];
y = mouseCoords[1] - positions.o[i][1];
var distance = this.data.ss * this.data.mx / Math.sqrt( (x * x) + (y * y) );
positions.o[i][0] += Math.cos(theta) * distance + (path.o[i][0] - positions.o[i][0]) * this.data.dc;
positions.o[i][1] += Math.sin(theta) * distance + (path.o[i][1] - positions.o[i][1]) * this.data.dc;
theta = Math.atan2(
positions.i[i][1] - mouseCoords[1],
positions.i[i][0] - mouseCoords[0]
);
x = mouseCoords[0] - positions.i[i][0];
y = mouseCoords[1] - positions.i[i][1];
var distance = this.data.ss * this.data.mx / Math.sqrt( (x * x) + (y * y) );
positions.i[i][0] += Math.cos(theta) * distance + (path.i[i][0] - positions.i[i][0]) * this.data.dc;
positions.i[i][1] += Math.sin(theta) * distance + (path.i[i][1] - positions.i[i][1]) * this.data.dc;
/////OPTION 1
//vValues.push(positions.v[i]);
// oValues.push(positions.o[i]);
// iValues.push(positions.i[i]);
/////OPTION 2
//vValues.push(positions.v[i]);
// iValues.push([path.i[i][0]+(positions.v[i][0]-path.v[i][0]),path.i[i][1]+(positions.v[i][1]-path.v[i][1])]);
// oValues.push([path.o[i][0]+(positions.v[i][0]-path.v[i][0]),path.o[i][1]+(positions.v[i][1]-path.v[i][1])]);
/////OPTION 3
//vValues.push(positions.v[i]);
//iValues.push(path.i[i]);
//oValues.push(path.o[i]);
/////OPTION 4
//vValues.push(path.v[i]);
// oValues.push(positions.o[i]);
// iValues.push(positions.i[i]);
} */
return {
v: vValues,
o: oValues,
i: iValues,
c: path.c,
};
};
MouseModifier.prototype.processShapes = function () {
var mouseX = this.elem.globalData.mouseX;
var mouseY = this.elem.globalData.mouseY;
var shapePaths;
var i;
var len = this.shapes.length;
var j;
var jLen;
if (mouseX) {
var localMouseCoords = this.elem.globalToLocal([mouseX, mouseY, 0]);
var shapeData;
var newPaths = [];
for (i = 0; i < len; i += 1) {
shapeData = this.shapes[i];
if (!shapeData.shape._mdf && !this._mdf) {
shapeData.shape.paths = shapeData.last;
} else {
shapeData.shape._mdf = true;
shapePaths = shapeData.shape.paths;
jLen = shapePaths.length;
for (j = 0; j < jLen; j += 1) {
if (!this.positions[i][j]) {
this.positions[i][j] = {
v: [],
o: [],
i: [],
distV: [],
distO: [],
distI: [],
};
}
newPaths.push(this.processPath(shapePaths[j], localMouseCoords, this.positions[i][j]));
}
shapeData.shape.paths = newPaths;
shapeData.last = newPaths;
}
}
}
};
MouseModifier.prototype.initModifierProperties = function (elem, data) {
this.getValue = this.processKeys;
this.data = data;
this.positions = [];
};
ShapeModifiers.registerModifier('ms', MouseModifier);
export default MouseModifier;