feat(All):Initial

packages/sdk/lib/core/commands/RemoveObjectCommand.ts

@@ -0,0 +1,64 @@
+import { Command } from './Command';
+import { ObjectLoader } from '../loader/ObjectLoader';
+import App from "../app/App";
+
+/**
+ * @param object THREE.Object3D
+ * @constructor
+ */
+class RemoveObjectCommand extends Command {
+	public object;
+	public parent;
+	public index;
+
+	constructor( object ) {
+		super();
+
+		this.type = 'RemoveObjectCommand';
+		this.name = 'Remove object';
+
+		this.object = object;
+		this.parent = ( object !== undefined ) ? object.parent : undefined;
+		if ( this.parent !== undefined ) {
+			this.index = this.parent.children.indexOf( this.object );
+		}
+	}
+
+	execute() {
+		App.removeObject( this.object );
+		App.deselect();
+	}
+
+	undo() {
+		App.addObject( this.object, this.parent, this.index );
+		App.select( this.object );
+	}
+
+	toJSON() {
+		const output = super.toJSON();
+		output.object = this.object.toJSON();
+		output.index = this.index;
+		output.parentUuid = this.parent.uuid;
+
+		return output;
+	}
+
+	fromJSON( json ) {
+		super.fromJSON( json );
+
+		this.parent = App.getObjectByUuid( json.parentUuid );
+		if ( this.parent === undefined ) {
+			this.parent = App.scene;
+		}
+
+		this.index = json.index;
+		this.object = App.getObjectByUuid( json.object.object.uuid );
+
+		if ( this.object === undefined ) {
+			const loader = new ObjectLoader();
+			this.object = loader.parse( json.object );
+		}
+	}
+}
+
+export { RemoveObjectCommand };