Fixed compilation issues involving the last modifications on the the RNG class.

Author: sharivan

XSharp/Engine/BaseEngine.cs

@@ -1884,7 +1884,7 @@ protected virtual bool OnFrame()
  if (!nextFrame)
  return false;
 
- RNG.UpdateSeed((ulong) FrameCounter);
+ RNG.UpdateSeed((ushort) FrameCounter);
 
  if (Player != null)
  {

XSharp/Engine/RNG.cs

@@ -35,14 +35,48 @@ public ushort NextValue()
  return seed;
  }
 
+ public ushort NextValue(ushort count)
+ {
+ return NextValue(0, count);
+ }
+
  public ushort NextValue(ushort start, ushort end)
  {
  return (ushort) (start + NextValue() % (end - start)); // This one will change the distribution by using modulus, but original game does the same thing.
  }
 
- public ushort NextValue(ushort count)
+ public uint NextInt()
  {
- return NextValue(0, count);
+ ushort hi = NextValue();
+ ushort lo = NextValue();
+ return (uint) (hi << 16) | lo;
+ }
+
+ public uint NextInt(uint count)
+ {
+ return NextInt(0, count);
+ }
+
+ public uint NextInt(uint start, uint end)
+ {
+ return start + NextInt() % (end - start);
+ }
+
+ public ulong NextLong()
+ {
+ uint hi = NextInt();
+ uint lo = NextInt();
+ return (ulong) (hi << 32) | lo;
+ }
+
+ public ulong NextLong(ulong count)
+ {
+ return NextLong(0, count);
+ }
+
+ public ulong NextLong(ulong start, ulong end)
+ {
+ return start + NextLong() % (end - start);
  }
 
  public float NextFloat()