Picking Up a Key | Pencil Code Gym

Picking Up a Key remember a key with a variable

Find the key and use it to open the door.

Pick things up!

When your player does something that you want to keep track of (like finding an important key) you can use a variable to make sure you remember that that happened. What other important items might your player find?

Remember other information

true and false are special values, called booleans. Variables can store other things, though -- for example, numbers! Maybe you have to ask the troll three times before she'll let you cross the bridge...

Write yourself a note

In the sample code, some lines begin with #. (This symbol has lots of names -- it's called sharp, hash, or pound, but it's always typed with shift-3.) The computer ignores all lines that begin with #; they're comments so that you can remember what the code does. Try commenting out a line of code...

More Ideas

# This is a variable found_the_key = false tree = -> do cs write """ After a long walk in the forest, you find yourself under an old, mossy oak tree. The sunlight glimmers against something hidden in its gnarled roots... """ menu "Keep walking to the castle": castle "Look closer at the roots": roots roots = -> do cs write """ You dig among the roots with your fingers and find an old key. It's dirty and rusty, but it looks like it would still work. """ write """ <img src="/img/ancient-key"> """ # Remember that we found the key! found_the_key = true menu "Go to the castle": castle castle = -> do cs write """ You walk to the castle and go inside to look at the treasury door. """ # If you found the key, then you get # this choice. if found_the_key menu "Unlock the door": treasure # If you haven't found it yet... if not found_the_key write """ If only you had the key, you might be able to save the kingdom. """ menu "Go for a walk": tree treasure = -> write """ The key fits! You open the door, and among the treasure you see a Crown... """ # Start the game do tree

Reset

Reference:

do function menu variables true false boolean comments