Update cutscene bars in fixed-timestep loop

This prevents cutscene bars from going really really fast.

desktop_version/src/Graphics.cpp

@@ -839,8 +839,6 @@ void Graphics::cutscenebars()
 {
     if (showcutscenebars)
     {
-        cutscenebarspos += 25;
-        cutscenebarspos = std::min(cutscenebarspos, 361);
         FillRect(backBuffer, 0, 0, cutscenebarspos, 16, 0x000000);
         FillRect(backBuffer, 360-cutscenebarspos, 224, cutscenebarspos, 16, 0x000000);
     }
@@ -849,8 +847,6 @@ void Graphics::cutscenebars()
         //disappearing
         if (cutscenebarspos > 0)
         {
-            cutscenebarspos -= 25;
-            cutscenebarspos = std::max(cutscenebarspos, 0);
             //draw
             FillRect(backBuffer, 0, 0, cutscenebarspos, 16, 0x000000);
             FillRect(backBuffer, 360-cutscenebarspos, 224, cutscenebarspos, 16, 0x000000);
@@ -858,6 +854,21 @@ void Graphics::cutscenebars()
     }
 }
 
+void Graphics::cutscenebarstimer()
+{
+    if (showcutscenebars)
+    {
+        cutscenebarspos += 25;
+        cutscenebarspos = std::min(cutscenebarspos, 361);
+    }
+    else if (cutscenebarspos > 0)
+    {
+        //disappearing
+        cutscenebarspos -= 25;
+        cutscenebarspos = std::max(cutscenebarspos, 0);
+    }
+}
+
 void Graphics::drawcrewman( int x, int y, int t, bool act, bool noshift /*=false*/ )
 {
     if (!act)

desktop_version/src/Graphics.h

@@ -91,6 +91,7 @@ public:
 	int crewcolour(const int t);
 
 	void cutscenebars();
+	void cutscenebarstimer();
 
 	void drawpartimage(int t, int xp, int yp, int wp, int hp);
 

desktop_version/src/main.cpp

@@ -390,6 +390,8 @@ int main(int argc, char *argv[])
                 Mix_Resume(-1);
                 Mix_ResumeMusic();
                 game.gametimer++;
+                graphics.cutscenebarstimer();
+
                 switch(game.gamestate)
                 {
                 case PRELOADER: