add back bundle

Author: bcamper

build/bundle.mjs

@@ -0,0 +1,20 @@
+// Loads each of the chunks produced by the first Rollup pass.
+// The custom AMD define() in intro.js will combined the shared
+// and worker chunks into a worker bundle that can be instantiated
+// via blob URL.
+
+import './shared';          // shared code between main and worker threads
+import './scene_worker';    // worker code, gets turned into a blob URL used to instantiate workers
+import './index';          	// main thread code, gets exported as main library below
+
+// This allows the rollup ESM build to work within a <script type="module"> tag
+// Script modules can't expose exports
+try {
+	Tangram.debug.ESM = _ESM; // mark build as ES module
+	Tangram.debug.SHA = _SHA;
+	if (_ESM === true && typeof window === 'object') {
+	    window.Tangram = Tangram;
+	}
+} catch(e) {}
+
+export default Tangram;