From c648c1df8a41220809e9b9c86935421ce621bec4 Mon Sep 17 00:00:00 2001
From: Chris Adams <chris@improbable.org>
Date: Tue, 25 Jun 2013 14:26:09 -0400
Subject: [PATCH] drawer: don't leak drawLevel into global namespace

This code is still under-tested and documented but no longer relies on
`drawLevel` being leaked into the global namespace where `updateLevel`
to find it.

See #145
---
 src/drawer.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/drawer.js b/src/drawer.js
index 86c1db90..cd110561 100644
--- a/src/drawer.js
+++ b/src/drawer.js
@@ -527,7 +527,9 @@ function updateViewport( drawer ) {
     lowestLevel = Math.min( lowestLevel, highestLevel );
 
     //TODO
+    var drawLevel; // FIXME: drawLevel should have a more explanatory name
     for ( level = highestLevel; level >= lowestLevel; level-- ) {
+        drawLevel = false;
 
         //Avoid calculations for draw if we have already drawn this
         renderPixelRatioC = drawer.viewport.deltaPixelsFromPoints(
@@ -572,6 +574,7 @@ function updateViewport( drawer ) {
         best = updateLevel(
             drawer,
             haveDrawn,
+            drawLevel,
             level,
             levelOpacity,
             levelVisibility,
@@ -601,7 +604,7 @@ function updateViewport( drawer ) {
 }
 
 
-function updateLevel( drawer, haveDrawn, level, levelOpacity, levelVisibility, viewportTL, viewportBR, currentTime, best ){
+function updateLevel( drawer, haveDrawn, drawLevel, level, levelOpacity, levelVisibility, viewportTL, viewportBR, currentTime, best ){
 
     var x, y,
         tileTL,