From 7108b5fb72165d964758feebad52bf49691ebbfd Mon Sep 17 00:00:00 2001
From: Peli de Halleux <jhalleux@microsoft.com>
Date: Thu, 24 Mar 2016 14:05:02 -0700
Subject: [PATCH] support stopped state

---
 sim/simsvg.ts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sim/simsvg.ts b/sim/simsvg.ts
index 46be1e02..63b56ff1 100644
--- a/sim/simsvg.ts
+++ b/sim/simsvg.ts
@@ -240,6 +240,9 @@ namespace ks.rt.micro_bit {
             this.updateTemperature(); 
             this.updateButtonAB();       
             this.updateGestures(); 
+            
+            if (!runtime || runtime.dead) this.element.classList.add("grayscale");
+            else this.element.classList.remove("grayscale");
         }
         
         private updateGestures() {
@@ -462,10 +465,14 @@ namespace ks.rt.micro_bit {
                 "y": "0px"});
             this.style = <SVGStyleElement>Svg.child(this.element, "style", {});
             this.style.textContent = `
-
 svg.sim {
     margin-bottom:1em;
 }
+svg.sim.grayscale {    
+    -moz-filter: grayscale(1);
+    -webkit-filter: grayscale(1);
+    filter: grayscale(1);
+}
 .sim-button {
     pointer-events: none;    
 }