80 lines
1.6 KiB
JavaScript
80 lines
1.6 KiB
JavaScript
import { Curve } from '../core/Curve.js';
|
|
import { CubicBezier } from '../core/Interpolations.js';
|
|
import { Vector2 } from '../../math/Vector2.js';
|
|
|
|
|
|
function CubicBezierCurve( v0, v1, v2, v3 ) {
|
|
|
|
Curve.call( this );
|
|
|
|
this.type = 'CubicBezierCurve';
|
|
|
|
this.v0 = v0 || new Vector2();
|
|
this.v1 = v1 || new Vector2();
|
|
this.v2 = v2 || new Vector2();
|
|
this.v3 = v3 || new Vector2();
|
|
|
|
}
|
|
|
|
CubicBezierCurve.prototype = Object.create( Curve.prototype );
|
|
CubicBezierCurve.prototype.constructor = CubicBezierCurve;
|
|
|
|
CubicBezierCurve.prototype.isCubicBezierCurve = true;
|
|
|
|
CubicBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {
|
|
|
|
var point = optionalTarget || new Vector2();
|
|
|
|
var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;
|
|
|
|
point.set(
|
|
CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
|
|
CubicBezier( t, v0.y, v1.y, v2.y, v3.y )
|
|
);
|
|
|
|
return point;
|
|
|
|
};
|
|
|
|
CubicBezierCurve.prototype.copy = function ( source ) {
|
|
|
|
Curve.prototype.copy.call( this, source );
|
|
|
|
this.v0.copy( source.v0 );
|
|
this.v1.copy( source.v1 );
|
|
this.v2.copy( source.v2 );
|
|
this.v3.copy( source.v3 );
|
|
|
|
return this;
|
|
|
|
};
|
|
|
|
CubicBezierCurve.prototype.toJSON = function () {
|
|
|
|
var data = Curve.prototype.toJSON.call( this );
|
|
|
|
data.v0 = this.v0.toArray();
|
|
data.v1 = this.v1.toArray();
|
|
data.v2 = this.v2.toArray();
|
|
data.v3 = this.v3.toArray();
|
|
|
|
return data;
|
|
|
|
};
|
|
|
|
CubicBezierCurve.prototype.fromJSON = function ( json ) {
|
|
|
|
Curve.prototype.fromJSON.call( this, json );
|
|
|
|
this.v0.fromArray( json.v0 );
|
|
this.v1.fromArray( json.v1 );
|
|
this.v2.fromArray( json.v2 );
|
|
this.v3.fromArray( json.v3 );
|
|
|
|
return this;
|
|
|
|
};
|
|
|
|
|
|
export { CubicBezierCurve };
|