12 — Random: dice and picks

A game needs a surprise. Rolling a die, or picking one of several things, is a single sentence. There is nothing to load first and nothing to switch on.

#Steps

1. Type this into the writing box:

   set die to random number from 1 to 6
   show die
   

   copyrun it →

   Run it a few times. Any number from 1 to 6 comes out. Korean is 주사위는 1부터 6까지 무작위 숫자.

2. Picking one of the things you name:

   set color to pick from red or green or blue
   show color
   

   copyrun it →

   Korean is 색은 빨강 또는 초록 또는 파랑 중에서 골라.

3. Mix it with what you already know and it is a game:

   set answer to random number from 1 to 3
   ask number guess Pick 1, 2 or 3
   if guess equals answer
       show Correct!
   else
       show Not this time
       show answer
   end
   

   copyrun it →

4. Roll several times and keep them:

   set rolls to list of
   repeat 3 times
   set one to random number from 1 to 6
   append one to rolls
   end
   show rolls
   

   copyrun it →

5. (Skip this for now.) In beginner syntax the same jobs have helper names. You load them with use random and then write random_number(1, 6). Written as sentences, that line is not needed.

#Try it yourself

Roll the die twice and show both:

set first to random number from 1 to 6
set second to random number from 1 to 6
show first
show second

#What you learned

• random number from 1 to 6 / 1부터 6까지 무작위 숫자 rolls a die.
• pick from red or green or blue / ... 중에서 골라 picks one of several.
• Written as sentences, nothing has to be loaded first.
• Chance mixes straight into conditions, loops and lists — mix them and you have a game.
• Beginner syntax calls the same jobs by name, after use random. That comes later, in 61 — Modules.