[Adamoneoone]

Code:

new rand = random(5);
{
and there others random
}

what are the point of having the brackets here? Does it even compile?
Anyway, if you're having a random number calculated everytime, why not do it once below the first random?
(i.e. having

Code:

new rand1 = random(5); 
new rand2 = random(5);
switch(rand1)
...

)
The code would be cleaner. Besides that, nothing to improve really.