From 5cb1088d0dbc8b01d2eb46b289e1ab77150c01b1 Mon Sep 17 00:00:00 2001
From: Sean Lilley <lilleyse@gmail.com>
Date: Tue, 27 Sep 2016 14:57:59 -0400
Subject: [PATCH] Change conditions from an object to an array

---
 Apps/Sandcastle/gallery/3D Tiles.html | 24 ++++++++++-----------
 Source/Scene/ConditionsExpression.js  | 30 +++++++++++++--------------
 2 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/Apps/Sandcastle/gallery/3D Tiles.html b/Apps/Sandcastle/gallery/3D Tiles.html
index e8bda0c717fc..2c0558216d34 100644
--- a/Apps/Sandcastle/gallery/3D Tiles.html	
+++ b/Apps/Sandcastle/gallery/3D Tiles.html	
@@ -87,15 +87,15 @@
 //              "color" : "rgb(100, 255, 190)",
 //              "color" : "hsla(0.9, 0.6, 0.7, 0.75)",
                 "color" : {
-                    "conditions" : {
-                        "${Height} >= 83" : "color('purple', 0.5)",
-                        "${Height} >= 80" : "color('red')",
-                        "${Height} >= 70" : "color('orange')",
-                        "${Height} >= 12" : "color('yellow')",
-                        "${Height} >= 7" : "color('lime')",
-                        "${Height} >= 1" : "color('cyan')",
-                        "true" : "color('blue')"
-                    }
+                    "conditions" : [
+                        ["${Height} >= 83", "color('purple', 0.5)"],
+                        ["${Height} >= 80", "color('red')"],
+                        ["${Height} >= 70", "color('orange')"],
+                        ["${Height} >= 12", "color('yellow')"],
+                        ["${Height} >= 7", "color('lime')"],
+                        ["${Height} >= 1", "color('cyan')"],
+                        ["true", "color('blue')"]
+                    ]
                 },
 //              "show": false,
 //              "show" : "${Height} >= 0",
@@ -410,13 +410,13 @@
 }
 
 function styleFunction(name) {
-    var conditions = {};
+    var conditions = [];
     var intervalSize = Math.floor(100/numberofColors);
     for (var i = numberofColors; i >= 0; --i) {
         var cond = '${' + name + '} > ' + (i * intervalSize);
-        conditions[cond] = getRandomColor();
+        conditions.push([cond, getRandomColor()]);
     }
-    conditions['true'] = getRandomColor();
+    conditions.push(['true', getRandomColor()]);
 
     tileset.style = new Cesium.Cesium3DTileStyle({
         color : {
diff --git a/Source/Scene/ConditionsExpression.js b/Source/Scene/ConditionsExpression.js
index 70be56e9a854..986467e1e23d 100644
--- a/Source/Scene/ConditionsExpression.js
+++ b/Source/Scene/ConditionsExpression.js
@@ -79,22 +79,22 @@ define([
         var runtimeConditions = [];
         var conditions = expression._conditions;
         var exp = expression._expression;
-        for (var cond in conditions) {
-            if (conditions.hasOwnProperty(cond)) {
-                cond = String(cond);
-                var condExpression = String(conditions[cond]);
-                if (defined(exp)) {
-                    cond = cond.replace(expressionPlaceholder, exp);
-                    condExpression = condExpression.replace(expressionPlaceholder, exp);
-                } else {
-                    cond = cond.replace(expressionPlaceholder, 'undefined');
-                    condExpression = condExpression.replace(expressionPlaceholder, 'undefined');
-                }
-                runtimeConditions.push(new Statement(
-                    new Expression(cond),
-                    new Expression(condExpression)
-                ));
+        var length = conditions.length;
+        for (var i = 0; i < length; ++i) {
+            var statement = conditions[i];
+            var cond = String(statement[0]);
+            var condExpression = String(statement[1]);
+            if (defined(exp)) {
+                cond = cond.replace(expressionPlaceholder, exp);
+                condExpression = condExpression.replace(expressionPlaceholder, exp);
+            } else {
+                cond = cond.replace(expressionPlaceholder, 'undefined');
+                condExpression = condExpression.replace(expressionPlaceholder, 'undefined');
             }
+            runtimeConditions.push(new Statement(
+                new Expression(cond),
+                new Expression(condExpression)
+            ));
         }
 
         expression._runtimeConditions = runtimeConditions;