Unify drawing room name on map menus into one function

Previously, it was copy-pasted and slightly different, when really, they
ought to both be the exact same code.

It kind of pains me that the room name, glitch name, and hidden name
don't own their own memory, but, that's to be addressed later.

What's a bit annoying is that the `temp` variable used in
`teleporterrender` also ends up being reused later in the function. In
this case, I opted to just redeclare them when they are used anyway, to
make it clearer.

Apart from `teleporterrender` no longer calling `map.area` or caring
about `map.custommode`, it also no longer cares about
`graphics.fademode` being 0. I could never actually get this condition
to be false in practice, and I have absolutely no idea why it's there.
I'm guessing it could be some weird edge case rendering issue if the
screen is fully black? But I wouldn't know how to trigger that, and
anyway it should probably be fixed elsewhere. So I'm just going to
remove that conditional.

desktop_version/src/Render.cpp

@@ -2013,6 +2013,26 @@ void gamerender(void)
     graphics.renderwithscreeneffects();
 }
 
+static void draw_roomname_menu(void)
+{
+    const char* name;
+
+    if (map.hiddenname[0] != '\0')
+    {
+        name = map.hiddenname;
+    }
+    else if (map.finalmode)
+    {
+        name = map.glitchname;
+    }
+    else
+    {
+        name = map.roomname;
+    }
+
+    graphics.Print(5, 2, name, 196, 196, 255 - help.glow, true);
+}
+
 /* Used to keep some graphics positions on the map screen
  * the same in Flip Mode. */
 #define FLIP(y, h) (graphics.flipmode ? 220 - (y) - (h) : (y))
@@ -2021,20 +2041,7 @@ void maprender(void)
 {
     ClearSurface(graphics.backBuffer);
 
-    //draw screen alliteration
+    draw_roomname_menu();
-    //Roomname:
-    if (map.hiddenname[0] != '\0')
-    {
-        graphics.Print(5, 2, map.hiddenname, 196, 196, 255 - help.glow, true);
-    }
-    else
-    {
-      if (map.finalmode){
-        graphics.Print(5, 2, map.glitchname, 196, 196, 255 - help.glow, true);
-      }else{
-        graphics.Print(5, 2, map.roomname, 196, 196, 255 - help.glow, true);
-      }
-    }
 
     //Background color
     FillRect(graphics.backBuffer,0, 12, 320, 240, 10, 24, 26 );
@@ -2721,17 +2728,8 @@ void teleporterrender(void)
     ClearSurface(graphics.backBuffer);
     int tempx;
     int tempy;
-    //draw screen alliteration
+
-    //Roomname:
+    draw_roomname_menu();
-    int temp = map.area(game.roomx, game.roomy);
-    if (temp < 2 && !map.custommode && graphics.fademode==0)
-    {
-        graphics.Print(5, 2, map.hiddenname, 196, 196, 255 - help.glow, true);
-    }
-    else
-    {
-        graphics.Print(5, 2, map.roomname, 196, 196, 255 - help.glow, true);
-    }
 
     //Background color
     FillRect(graphics.backBuffer, 0, 12, 320, 240, 10, 24, 26);
@@ -2778,13 +2776,13 @@ void teleporterrender(void)
     {
         if (map.showteleporters && map.isexplored(map.teleporters[i].x, map.teleporters[i].y))
         {
-            temp = 1126 + (int) map.isexplored(map.teleporters[i].x, map.teleporters[i].y);
+            int temp = 1126 + (int) map.isexplored(map.teleporters[i].x, map.teleporters[i].y);
             if (graphics.flipmode) temp += 3;
             graphics.drawtile(40 + 3 + (map.teleporters[i].x * 12), 22 + (map.teleporters[i].y * 9), temp);
         }
         else if(map.showtargets && !map.isexplored(map.teleporters[i].x, map.teleporters[i].y))
         {
-            temp = 1126 + (int) map.isexplored(map.teleporters[i].x, map.teleporters[i].y);
+            int temp = 1126 + (int) map.isexplored(map.teleporters[i].x, map.teleporters[i].y);
             if (graphics.flipmode) temp += 3;
             graphics.drawtile(40 + 3 + (map.teleporters[i].x * 12), 22 + (map.teleporters[i].y * 9), temp);
         }
@@ -2796,7 +2794,7 @@ void teleporterrender(void)
         {
             if (!obj.collect[i])
             {
-                temp = 1086;
+                int temp = 1086;
                 if (graphics.flipmode) temp += 3;
                 graphics.drawtile(40 + 3 + (map.shinytrinkets[i].x * 12), 22 + (map.shinytrinkets[i].y * 9),    temp);
             }
@@ -2808,7 +2806,7 @@ void teleporterrender(void)
     if (game.useteleporter && ((help.slowsine%16)>8))
     {
         //colour in the legend
-        temp = 1128;
+        int temp = 1128;
         if (graphics.flipmode) temp += 3;
         graphics.drawtile(40 + 3 + (tempx * 12), 22 + (tempy * 9), temp);
     }