From 4b34a2e56584bd480a4534726a7c57b6c2c35eac Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop+git@gmail.com>
Date: Mon, 5 Oct 2009 19:44:55 +0000
Subject: [PATCH] fixed bug popping when i shouldnt have been and registering
 doPhysics()

git-svn-id: svn://anubis/anaglym/trunk@49 99a6e188-d820-4881-8870-2d33a10e2619
---
 ag.cc      | 1 +
 anaglym.cc | 8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/ag.cc b/ag.cc
index 3f6f7b0..52990e7 100644
--- a/ag.cc
+++ b/ag.cc
@@ -29,6 +29,7 @@ namespace ag
             { "endFrame", endFrame },
             { "setCamera", setCamera },
             { "elapsedTime", elapsedTime },
+            { "doPhysics", doPhysics },
             { NULL, NULL }
         };
         luaL_register(L, "ag", functions);
diff --git a/anaglym.cc b/anaglym.cc
index 4da1353..6997bba 100644
--- a/anaglym.cc
+++ b/anaglym.cc
@@ -303,10 +303,14 @@ void Engine::update()
     lua_getfield(m_luaState, LUA_GLOBALSINDEX, "update");
     if (lua_type(m_luaState, -1) == LUA_TFUNCTION)
     {
-        int s = lua_pcall(m_luaState, 0, 0, 0);
+        /* call the update function - pops the function ref from the stack */
+        int s = lua_pcall(m_luaState, 0, LUA_MULTRET, 0);
         reportErrors(s);
     }
-    lua_pop(m_luaState, 1);
+    else
+    {
+        lua_pop(m_luaState, 1);
+    }
     m_drawing = false;
 }