Simplify index wrapper, namespacing.

Experiment with function exports.  Not quite working.

src/nim_wasm_test.nim

@@ -1,6 +1,8 @@
 # vim: set et sta sw=4 ts=4 :
 
-import std/os
+import
+    std/os,
+    std/strformat
 import raylib
 
 # Emscripten specific imports
@@ -15,23 +17,37 @@ var camera = Camera(
     projection: Perspective                # Defines projection type, see CameraProjection
 )
 
+# This only works with:
+# --passL:"-s EXPORT_FUNCTIONS=_nativeGreet", but it breaks raylib loading.
+# hmmmmm.  EXPORT_ALL=1 is also a no go.
+# Maybe it won't be necessary with raylib/opengl input
+#
+#[ proc nativeGreet*(): int {.exportc.} =
+    echo "Oh jeez, hello from native nim!"
+    return 0 ]#
+
+
 proc mainLoop() {.cdecl.} =
     defer: closeWindow()
 
     initWindow( 800, 600, "raylib nim playground" )
 
+    var count = 0
+
     while not windowShouldClose():
 
         beginDrawing();
-        clearBackground( RAYWHITE );
+        clearBackground( WHITE );
         beginMode3D( camera );
         drawGrid( 10, 1.0f );
         endMode3D();
 
         var col = if isCursorOnScreen(): BLUE else: GRAY
-        drawText( "OH SNAP IT'S WORKING", 10, 10, 20, col );
+        drawText( "OH SNAP IT'S WORKING\n{count}".fmt, 10, 10, 20, col );
         endDrawing();
 
+        count = count + 1
+
         if defined( emscripten ):
             emscripten_sleep 10
             echo "wasm: hi"