Question

display moving sprites on LibertyBASIC?

Answer 1

Some of their doc links were broken, but I found this one to be working:
http://www.libertybasicuniversity.com/lb4help/

In there I found:

POSITION AND MOVEMENT
A sprite can be moved to the x, y position indicated in the SPRITEXY command. The following example places the sprite named "smiley" at x=100, y=137:

print #w.g, "spritexy smiley 100 137";

Liberty BASIC will automatically move a sprite each time a new frame is drawn, if the SPRITEMOVEXY command is issued. The following command moves the sprite named "smiley" 5 pixels in the x direction and 2 pixels in the y direction each time a new animation frame is drawn.

print #w.g, "spritemovexy smiley 5 2";