Getting started - Cave Man Code

Five minutes from now you will have written and run a real program.

1. Open OGABOOGA CODER

Double-click OGABOOGA CODER.exe. You get a big friendly window with three tabs:

Blocks (drag and drop) -- the block workshop
Text (caveman code) -- where you type CMC words
Draw (picture) -- where skrib drawings appear

Click the Text tab.

2. Say hello

Type this:

oga "Ooga booga! Me make program!"

Press RUN (or the F5 key). The output panel shows:

Ooga booga! Me make program!

oga is how CMC talks. Everything in quotes is text.

3. Make a box

A box remembers something. grunk makes a box:

grunk name = "Ugg"
grunk rocks = 3

oga name, "has", rocks, "rocks"

Output:

Ugg has 3 rocks

oga prints each thing with a space between them.

4. Change the box

rocks = rocks + 1
oga "Now", name, "has", rocks, "rocks"

Output:

Now Ugg has 4 rocks

Notice: grunk makes a new box, plain = puts something new into a box that already exists. If you use = on a box that was never made, CMC says OOGA! and reminds you.

5. Ask for a turn

grunk answer = blorp "Do you like rocks? (yes or no)"
oga "You said:", answer

A question window pops up. Whatever the person types comes back as text.

6. Repeat things

booga 3
    oga "bang rock!"
unga

booga 3 does the things inside three times. unga means "the block is done". Inside the loop, the magic box lap tells you which lap you are on.

7. Decide things

grunk rocks = 5

binga rocks > 3
    oga "That is a lot of rocks!"
wonga
    oga "Just a few rocks."
unga

binga checks; wonga means "otherwise". This is the same unga again.

8. Draw something

Click the Draw tab and run this:

skrib size 400, 400
skrib color "orange"
skrib circle 200, 200, 120
skrib color "black"
skrib dot 200, 200, 12
oga "Sun drawn!"