Getting something on the screen

First, we don't need the demo code.

Much better...

Get a game loop going. It can be a simple while loop. In this case, we loop while the Q key isn't pressed. Don't forget to add a YIELD statement so your game loop plays nicely! Crash-tan will warn you if you don't!

Let's make a temporary sprite out of the character Z with size 8. We'll call it "tempSprite" for reference.

Let's set up some simple variables to track our player location. We would obviously use more robust means in a real game, but this should be fine for now.

One liner! This will put "Z" on the screen at 0.

What should we do about that?

Well, let's start by clearing the screen each frame since we don't want a tunnel of Z's messing up the screen as we move.

Flickering worse, but this is expected. Let's add the code to make our player move around. Clamp ensures that we can't go past the screen bounds (you can still go off screen on the right. If you want to keep the sprite bounded, subtract 8 from 319 and 8 from 199 to get the true bounds. We are going to be lazy right now).

This works, but that flicker is bad. What can we do?

Encapsulate our drawing routines inside a BEGIN FRAME / END FRAME BLOCK!!!

Now the flicker is gone!

This is a super simplified example, but now you can see how easy it is to just put something on the screen with Crash BASIC!