Revert to *.prototype.is* = true

src/extras/core/Font.js

@@ -4,8 +4,6 @@ class Font {
 
 	constructor( data ) {
 
-		this.isFont = true;
-
 		this.type = 'Font';
 
 		this.data = data;
@@ -140,4 +138,6 @@ function createPath( char, scale, offsetX, offsetY, data ) {
 
 }
 
+Font.prototype.isFont = true;
+
 export { Font };

src/extras/curves/ArcCurve.js

@@ -7,10 +7,11 @@ class ArcCurve extends EllipseCurve {
 		super( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );
 
 		this.type = 'ArcCurve';
-		this.isArcCurve = true;
 
 	}
 
 }
 
+ArcCurve.prototype.isArcCurve = true;
+
 export { ArcCurve };

src/extras/curves/CatmullRomCurve3.js

@@ -88,7 +88,7 @@ class CatmullRomCurve3 extends Curve {
 		super();
 
 		this.type = 'CatmullRomCurve3';
-		this.isCatmullRomCurve3 = true;
+
 		this.points = points;
 		this.closed = closed;
 		this.curveType = curveType;
@@ -248,4 +248,6 @@ class CatmullRomCurve3 extends Curve {
 
 }
 
+CatmullRomCurve3.prototype.isCatmullRomCurve3 = true;
+
 export { CatmullRomCurve3 };

src/extras/curves/CubicBezierCurve.js

@@ -9,7 +9,6 @@ class CubicBezierCurve extends Curve {
 		super();
 
 		this.type = 'CubicBezierCurve';
-		this.isCubicBezierCurve = true;
 
 		this.v0 = v0;
 		this.v1 = v1;
@@ -74,4 +73,6 @@ class CubicBezierCurve extends Curve {
 
 }
 
+CubicBezierCurve.prototype.isCubicBezierCurve = true;
+
 export { CubicBezierCurve };

src/extras/curves/CubicBezierCurve3.js

@@ -9,7 +9,6 @@ class CubicBezierCurve3 extends Curve {
 		super();
 
 		this.type = 'CubicBezierCurve3';
-		this.isCubicBezierCurve3 = true;
 
 		this.v0 = v0;
 		this.v1 = v1;
@@ -75,4 +74,6 @@ class CubicBezierCurve3 extends Curve {
 
 }
 
+CubicBezierCurve3.prototype.isCubicBezierCurve3 = true;
+
 export { CubicBezierCurve3 };

src/extras/curves/EllipseCurve.js

@@ -8,7 +8,6 @@ class EllipseCurve extends Curve {
 		super();
 
 		this.type = 'EllipseCurve';
-		this.isEllipseCurve = true;
 
 		this.aX = aX;
 		this.aY = aY;
@@ -152,4 +151,6 @@ class EllipseCurve extends Curve {
 
 }
 
+EllipseCurve.prototype.isEllipseCurve = true;
+
 export { EllipseCurve };

src/extras/curves/LineCurve.js

@@ -8,7 +8,6 @@ class LineCurve extends Curve {
 		super();
 
 		this.type = 'LineCurve';
-		this.isLineCurve = true;
 
 		this.v1 = v1;
 		this.v2 = v2;
@@ -86,4 +85,6 @@ class LineCurve extends Curve {
 
 }
 
+LineCurve.prototype.isLineCurve = true;
+
 export { LineCurve };

src/extras/curves/QuadraticBezierCurve.js

@@ -9,7 +9,6 @@ class QuadraticBezierCurve extends Curve {
 		super();
 
 		this.type = 'QuadraticBezierCurve';
-		this.isQuadraticBezierCurve = true;
 
 		this.v0 = v0;
 		this.v1 = v1;
@@ -70,4 +69,6 @@ class QuadraticBezierCurve extends Curve {
 
 }
 
+QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;
+
 export { QuadraticBezierCurve };

src/extras/curves/QuadraticBezierCurve3.js

@@ -9,7 +9,6 @@ class QuadraticBezierCurve3 extends Curve {
 		super();
 
 		this.type = 'QuadraticBezierCurve3';
-		this.isQuadraticBezierCurve3 = true;
 
 		this.v0 = v0;
 		this.v1 = v1;
@@ -71,4 +70,6 @@ class QuadraticBezierCurve3 extends Curve {
 
 }
 
+QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;
+
 export { QuadraticBezierCurve3 };

src/extras/curves/SplineCurve.js

@@ -9,7 +9,6 @@ class SplineCurve extends Curve {
 		super();
 
 		this.type = 'SplineCurve';
-		this.isSplineCurve = true;
 
 		this.points = points;
 
@@ -93,4 +92,6 @@ class SplineCurve extends Curve {
 
 }
 
+SplineCurve.prototype.isSplineCurve = true;
+
 export { SplineCurve };

src/lights/AmbientLight.js

@@ -7,11 +7,11 @@ class AmbientLight extends Light {
 		super( color, intensity );
 
 		this.type = 'AmbientLight';
-		this.isAmbientLight = true;
 
 	}
 
 }
 
+AmbientLight.prototype.isAmbientLight = true;
 
 export { AmbientLight };

src/lights/AmbientLightProbe.js

@@ -7,8 +7,6 @@ class AmbientLightProbe extends LightProbe {
 
 		super( undefined, intensity );
 
-		this.isAmbientLightProbe = true;
-
 		const color1 = new Color().set( color );
 
 		// without extra factor of PI in the shader, would be 2 / Math.sqrt( Math.PI );
@@ -18,4 +16,6 @@ class AmbientLightProbe extends LightProbe {
 
 }
 
+AmbientLightProbe.prototype.isAmbientLightProbe = true;
+
 export { AmbientLightProbe };

src/lights/DirectionalLight.js

@@ -8,8 +8,6 @@ class DirectionalLight extends Light {
 
 		super( color, intensity );
 
-		this.isDirectionalLight = true;
-
 		this.type = 'DirectionalLight';
 
 		this.position.copy( Object3D.DefaultUp );
@@ -34,4 +32,6 @@ class DirectionalLight extends Light {
 
 }
 
+DirectionalLight.prototype.isDirectionalLight = true;
+
 export { DirectionalLight };

src/lights/DirectionalLightShadow.js

@@ -7,10 +7,10 @@ class DirectionalLightShadow extends LightShadow {
 
 		super( new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );
 
-		this.isDirectionalLightShadow = true;
-
 	}
 
 }
 
+DirectionalLightShadow.prototype.isDirectionalLightShadow = true;
+
 export { DirectionalLightShadow };

src/lights/HemisphereLight.js

@@ -8,8 +8,6 @@ class HemisphereLight extends Light {
 
 		super( skyColor, intensity );
 
-		this.isHemisphereLight = true;
-
 		this.type = 'HemisphereLight';
 
 		this.position.copy( Object3D.DefaultUp );
@@ -31,4 +29,6 @@ class HemisphereLight extends Light {
 
 }
 
+HemisphereLight.prototype.isHemisphereLight = true;
+
 export { HemisphereLight };

src/lights/HemisphereLightProbe.js

@@ -8,8 +8,6 @@ class HemisphereLightProbe extends LightProbe {
 
 		super( undefined, intensity );
 
-		this.isHemisphereLightProbe = true;
-
 		const color1 = new Color().set( skyColor );
 		const color2 = new Color().set( groundColor );
 
@@ -27,4 +25,6 @@ class HemisphereLightProbe extends LightProbe {
 
 }
 
+HemisphereLightProbe.prototype.isHemisphereLightProbe = true;
+
 export { HemisphereLightProbe };

src/lights/Light.js

@@ -7,8 +7,6 @@ class Light extends Object3D {
 
 		super();
 
-		this.isLight = true;
-
 		this.type = 'Light';
 
 		this.color = new Color( color );
@@ -49,4 +47,6 @@ class Light extends Object3D {
 
 }
 
+Light.prototype.isLight = true;
+
 export { Light };

src/lights/LightProbe.js

@@ -7,8 +7,6 @@ class LightProbe extends Light {
 
 		super( undefined, intensity );
 
-		this.isLightProbe = true;
-
 		this.sh = sh;
 
 	}
@@ -44,4 +42,6 @@ class LightProbe extends Light {
 
 }
 
+LightProbe.prototype.isLightProbe = true;
+
 export { LightProbe };

src/lights/PointLight.js

@@ -7,8 +7,6 @@ class PointLight extends Light {
 
 		super( color, intensity );
 
-		this.isPointLight = true;
-
 		this.type = 'PointLight';
 
 		this.distance = distance;
@@ -49,4 +47,6 @@ class PointLight extends Light {
 
 }
 
+PointLight.prototype.isPointLight = true;
+
 export { PointLight };

src/lights/PointLightShadow.js

@@ -15,8 +15,6 @@ class PointLightShadow extends LightShadow {
 
 		super( new PerspectiveCamera( 90, 1, 0.5, 500 ) );
 
-		this.isPointLightShadow = true;
-
 		this._frameExtents = new Vector2( 4, 2 );
 
 		this._viewportCount = 6;
@@ -84,4 +82,6 @@ class PointLightShadow extends LightShadow {
 
 }
 
+PointLightShadow.prototype.isPointLightShadow = true;
+
 export { PointLightShadow };

src/lights/RectAreaLight.js

@@ -6,8 +6,6 @@ class RectAreaLight extends Light {
 
 		super( color, intensity );
 
-		this.isRectAreaLight = true;
-
 		this.type = 'RectAreaLight';
 
 		this.width = width;
@@ -39,4 +37,6 @@ class RectAreaLight extends Light {
 
 }
 
+RectAreaLight.prototype.isRectAreaLight = true;
+
 export { RectAreaLight };

src/lights/SpotLight.js

@@ -8,8 +8,6 @@ class SpotLight extends Light {
 
 		super( color, intensity );
 
-		this.isSpotLight = true;
-
 		this.type = 'SpotLight';
 
 		this.position.copy( Object3D.DefaultUp );
@@ -61,4 +59,6 @@ class SpotLight extends Light {
 
 }
 
+SpotLight.prototype.isSpotLight = true;
+
 export { SpotLight };

src/lights/SpotLightShadow.js

@@ -8,8 +8,6 @@ class SpotLightShadow extends LightShadow {
 
 		super( new PerspectiveCamera( 50, 1, 0.5, 500 ) );
 
-		this.isSpotLightShadow = true;
-
 		this.focus = 1;
 
 	}
@@ -37,4 +35,6 @@ class SpotLightShadow extends LightShadow {
 
 }
 
+SpotLightShadow.prototype.isSpotLightShadow = true;
+
 export { SpotLightShadow };

src/math/Box2.js

@@ -6,8 +6,6 @@ class Box2 {
 
 	constructor( min = new Vector2( + Infinity, + Infinity ), max = new Vector2( - Infinity, - Infinity ) ) {
 
-		this.isBox2 = true;
-
 		this.min = min;
 		this.max = max;
 
@@ -228,5 +226,6 @@ class Box2 {
 
 }
 
+Box2.prototype.isBox2 = true;
 
 export { Box2 };