Scrolling Game Development Kit Forum

SGDK Version 2 => Help, Errors, FAQ => Topic started by: jason878 on 2014-11-30, 09:02:13 PM

Title: Reduce Fall Velocity
Post by: jason878 on 2014-11-30, 09:02:13 PM

I'm pretty new to SGDK2.2 and need a bit of help getting started on a gravity-based sidescroller.
If anyone can answer either of these questions I'd be extremely grateful

1. I figured out how to reduce the jump height using AlterYVelocity, but not how to increase it. How would I make the sprite jump 1.5 - 2X as high as normal?
2. How do I reduce or increase fall speed?

I'm building off of the default project, if that's any help to anyone

Thanks in advance for any help

Title: Re: Reduce Fall Velocity
Post by: bluemonkmn on 2014-11-30, 09:19:37 PM

Unfortunately since I'm on vacation I don't have the best facilities to answer your question, but hopefully I can give you a good clue. AlterYVelocity is a key piece. But if you're adding a new rule to a sprite that already exhibits gravity, you might be going about it in the wrong way. You should find an already-existing rule that calls AlterYVelocity, and then you should be able to adjust its parameter either higher or lower to affect jump height. Alternatively you could find a rule (it might be called Jump) that sets the dy property of the sprite, which determines how hard the sprite jumps when a jump starts. You could also adjust that in either direction.