Put HUD objects back on front of the scene.

src/ticker.cpp

@@ -221,6 +221,17 @@ void Ticker::TickDraw()
 
     /* Tick objects for the draw loop */
     for (int i = Entity::DRAWGROUP_BEGIN; i < Entity::DRAWGROUP_END; i++)
+    {
+        switch (i)
+        {
+        case Entity::DRAWGROUP_HUD:
+            Video::SetDepth(false);
+            break;
+        default:
+            Video::SetDepth(true);
+            break;
+        }
+
         for (Entity *e = data->list[i]; e; e = e->drawnext)
             if (!e->destroy)
             {
@@ -236,6 +247,7 @@ void Ticker::TickDraw()
                 e->state = Entity::STATE_IDLE;
 #endif
             }
+    }
 
     Profiler::Stop(Profiler::STAT_TICK_DRAW);
     Profiler::Start(Profiler::STAT_TICK_BLIT);

src/video.cpp

@@ -36,13 +36,6 @@ void Video::Setup(int width, int height)
     glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
     glClearDepth(1.0);
 
-    glEnable(GL_DEPTH_TEST);
-    glDepthFunc(GL_LEQUAL);
-    glEnable(GL_ALPHA_TEST);
-    glAlphaFunc(GL_GEQUAL, 0.01f);
-    glEnable(GL_BLEND);
-    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
     glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
 }
 
@@ -89,8 +82,23 @@ void Video::SetFov(float theta)
     glLoadIdentity();
 }
 
+void Video::SetDepth(bool set)
+{
+    if (set)
+        glEnable(GL_DEPTH_TEST);
+    else
+        glDisable(GL_DEPTH_TEST);
+}
+
 void Video::Clear()
 {
+    glEnable(GL_DEPTH_TEST);
+    glDepthFunc(GL_LEQUAL);
+    glEnable(GL_ALPHA_TEST);
+    glAlphaFunc(GL_GEQUAL, 0.01f);
+    glEnable(GL_BLEND);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
     SetFov(0.0f);

src/video.h

@@ -19,6 +19,7 @@ class Video
 public:
     static void Setup(int width, int height);
     static void SetFov(float theta);
+    static void SetDepth(bool set);
     static void Clear();
     static void Capture(uint32_t *buffer);
     static int GetWidth();