prototype properties: Clean up.

Author: linbingquan

examples/jsm/lines/LineGeometry.js

@@ -9,8 +9,6 @@ class LineGeometry extends LineSegmentsGeometry {
 
 		this.type = 'LineGeometry';
 
-		this.isLineGeometry = true;
-
 	}
 
 	setPositions( array ) {
@@ -93,4 +91,6 @@ class LineGeometry extends LineSegmentsGeometry {
 
 }
 
+LineGeometry.prototype.isLineGeometry = true;
+
 export { LineGeometry };

examples/jsm/lines/LineSegmentsGeometry.js

@@ -28,8 +28,6 @@ class LineSegmentsGeometry extends InstancedBufferGeometry {
 		this.setAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
 		this.setAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
 
-		this.isLineSegmentsGeometry = true;
-
 	}
 
 	applyMatrix4( matrix ) {
@@ -246,4 +244,6 @@ class LineSegmentsGeometry extends InstancedBufferGeometry {
 
 }
 
+LineSegmentsGeometry.prototype.isLineSegmentsGeometry = true;
+
 export { LineSegmentsGeometry };

examples/jsm/lines/WireframeGeometry2.js

@@ -15,10 +15,10 @@ class WireframeGeometry2 extends LineSegmentsGeometry {
 
 		// set colors, maybe
 
-		this.isWireframeGeometry2 = true;
-
 	}
 
 }
 
+WireframeGeometry.prototype.isWireframeGeometry2 = true;
+
 export { WireframeGeometry2 };

src/core/BufferAttribute.js

@@ -29,7 +29,11 @@ class BufferAttribute {
 
 		this.version = 0;
 
-		this.isBufferAttribute = true;
+	}
+
+	set needsUpdate( value ) {
+
+		if ( value === true ) this.version ++;
 
 	}
 
@@ -397,15 +401,7 @@ class BufferAttribute {
 
 }
 
-Object.defineProperty( BufferAttribute.prototype, 'needsUpdate', {
-
-	set( value ) {
-
-		if ( value === true ) this.version ++;
-
-	}
-
-} );
+BufferAttribute.prototype.isBufferAttribute = true;
 
 //
 

src/core/EventDispatcher.js

@@ -81,6 +81,4 @@ class EventDispatcher {
 
 }
 
-
-
 export { EventDispatcher };

src/core/Geometry.js

@@ -21,8 +21,6 @@ class Geometry extends EventDispatcher {
 
 		super();
 
-		this.isGeometry = true;
-
 		Object.defineProperty( this, 'id', { value: _geometryId += 2 } );
 
 		this.uuid = MathUtils.generateUUID();
@@ -1378,4 +1376,6 @@ class Geometry extends EventDispatcher {
 
 }
 
+Geometry.prototype.isGeometry = true;
+
 export { Geometry };

src/core/InstancedBufferAttribute.js

@@ -16,8 +16,6 @@ class InstancedBufferAttribute extends BufferAttribute {
 
 		}
 
-		this.isInstancedBufferAttribute = true,
-
 		this.meshPerAttribute = meshPerAttribute || 1;
 
 	}
@@ -46,4 +44,6 @@ class InstancedBufferAttribute extends BufferAttribute {
 
 }
 
+InstancedBufferAttribute.prototype.isInstancedBufferAttribute = true;
+
 export { InstancedBufferAttribute };

src/core/InstancedBufferGeometry.js

@@ -5,7 +5,6 @@ class InstancedBufferGeometry extends BufferGeometry {
 	constructor() {
 
 		super();
-		this.isInstancedBufferGeometry = true,
 
 		this.type = 'InstancedBufferGeometry';
 		this.instanceCount = Infinity;
@@ -42,4 +41,6 @@ class InstancedBufferGeometry extends BufferGeometry {
 
 }
 
+InstancedBufferGeometry.prototype.isInstancedBufferGeometry = true;
+
 export { InstancedBufferGeometry };

src/core/InstancedInterleavedBuffer.js

@@ -8,8 +8,6 @@ class InstancedInterleavedBuffer extends InterleavedBuffer {
 
 		this.meshPerAttribute = meshPerAttribute || 1;
 
-		this.isInstancedInterleavedBuffer = true;
-
 	}
 
 	copy( source ) {
@@ -45,4 +43,6 @@ class InstancedInterleavedBuffer extends InterleavedBuffer {
 
 }
 
+InstancedInterleavedBuffer.prototype.isInstancedInterleavedBuffer = true;
+
 export { InstancedInterleavedBuffer };

src/core/InterleavedBuffer.js

@@ -20,6 +20,12 @@ class InterleavedBuffer {
 
 	}
 
+	set needsUpdate( value ) {
+
+		if ( value === true ) this.version ++;
+
+	}
+
 	onUploadCallback() {}
 
 	setUsage( value ) {
@@ -138,14 +144,4 @@ class InterleavedBuffer {
 
 }
 
-Object.defineProperty( InterleavedBuffer.prototype, 'needsUpdate', {
-
-	set( value ) {
-
-		if ( value === true ) this.version ++;
-
-	}
-
-} );
-
 export { InterleavedBuffer };