"Moon Jump" Question

[Tony H]

What is the definition of a "Moon Jump"? I always thought it just meant that you can jump up past the top of the screen. Is that correct?

[Abystus]

I would think of it like if you personally were on the moon and attempted to jump. It would be a low gravity extended jump that would go a lot higher than normal due to the lower gravity. Pretty much any jump that goes a lot higher than normal (most of the time clearing the top of the screen if the game doesn't scroll with your character) where your character would eventually come down and land allowing you to start another jump. If your character does not come down it would be more of a levitate type code made popular by N64 games using a joker code button press to continually rise until the button was released.

[Tony H]

Thanks for the info abystus. I guess I wasn't too far off.

[Abystus]

No problem. In most instances you will see a gravity multiplier used in conjunction with the jump code to allow for different in game effects to alter your jump. Also in some games there is a CMP (Compare value) that is used to determine your maximum jump height before a fall routine would start. Modifying this compare value would grant you a higher maximum jump outside of any gravity multiplier that may be present.

If you want your character never to land after a jump it would be as easy as reversing the falling routine from a increase of the Y axis to a decrease of the Y axis which would loop infinitely thus making you continue to rise indefinitely until the code is turned off. This kind of implementation is limited to games that do not reset your Y value when leaving the top of the screen (causing you to come out the bottom of the screen when exiting the top).