Procedural world generation - ground and traps seems to not generating.

[User137]

No, Num:=Random2(30, 3, 2); behaves like:

oldSeed:=randseed
randseed:=3+2;
Num:=Random(30);
randseed:=oldSeed;

If you do

Num1:=Random2(30, 3, 0);
Num2:=Random2(30, 3, 0);

Then Num1 = Num2. But if you change offset

Num1:=Random2(30, 3, 0);
Num2:=Random2(30, 3, 1);

Then Num1 and Num2 will differ. But you can always replicate those numbers again with same parameters.