Tutorials

Sample beginner sentences

There are 10 birds.
When the up arrow is pressed, the rabbit moves up.
When the space bar is pressed, the pointer shoots up.
When the rabbit touches a carrot, the carrot disappears.
When a fox sees the rabbit, it chases the rabbit.
Otherwise, the fox wanders around.
When a bird sees a fox, it flies away from the fox.
When a bird touches a border, it turns around.
When an alien is shot, it explodes.
When a fox touches the rabbit, the game is over.
When all the carrots are gone, you win.

Sample intermediate sentences

The size of the diamond is 10. The speed of the rabbit is 3.2.
When the rabbit touches a diamond, the diamond disappears and
the rabbit turns yellow for 5 seconds.
When a fox sees the rabbit that is not yellow, it chases the rabbit.
When a fox sees the yellow rabbit, it flees the rabbit.
When an alien is shot, it becomes angry.
When an angry alien is shot, it explodes.
When a carrot disappears, the score adds 1.
When the score equals 20, you win.
When up arrow is pressed, the rabbit jumps.
When the rabbit lands on a sapphire, it stops.
When an alien sees the rabbit, it inserts a diamond.
When a piglet touches a dino, it turns into a bacon.
When the rabbit touches a carrot, the carrot disappears and
the x1 of the rabbit increases by 1.
When the x1 of the rabbit equals 10, you win.

Sample advanced sentences

When a fox sees the rabbit whose x1 is greater than 10,
it flees the rabbit.
When a yellow ball whose speed is less than 3 touches
a green pearl, it explodes.

Hint: Write each sentence in the perspective of the
acting character in the sentence.
For example, in the perspective of the fox interacting with a rabbit:

When I see a rabbit, I chase the rabbit.

Then, replace the first-person pronoun to the character 'fox'. It becomes

When the fox sees a rabbit, it chases the rabbit.

Example 2, in the perspective of the carrot interacting with the rabbit:

When the rabbit touches me, I disappear.

Then, replace the first-person pronoun to 'carrot'. It becomes

When the rabbit touches a carrot, the carrot disappears.

Check out the tutorials to see how the above sentences are used
in various games and algorithms!

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Practice Beginner Quizzes

1: Placing objects

2: Player control

3: Simple action

4: Unconditional / conditional movements

12: Completion (Beginner)

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Option 1:

Option 2:

Option 3: Use the single-page, text-based Tutorial Lessons below, with numerous examples

Beginner Lessons (Setting + Simple Movements and Actions: short single-step actions/interactions )

Intermediate Lessons (Power-Ups with Simple Boolean and Variable Attributes: Multi-step sequences of actions/interactions involving Boolean and other variables)

Advanced Lessons (More Complex Use of Attributes for Various Actions: more elaborate sequences of actions/interactions)