Actor falls though moving platform

dwibre

I have a platform that moves up and down. My actor travels up and down on it and can still move and jump as it should. My problem is I have a bug when the actor is on the moving platform and i keep pressing jump repeatedly sometime after jumping the actor falls though the platform. Any Ideas how to stop this?

dwibre

See Below for code

dwibre

Code for jump is as follows

Rule
When Attribute game.jump is true
Change attribute game.jumped to true
Change attribute game.jumpcount to self.jumpcount+1

Rule
When self.jumpCount Run to compleation, Change attribute self.motion.linear velocity to 400

Otherwise:
When Attribute self.jumpcount >1
Timer after 3 seconds "run to completion
Change Attribute self.jumpcount to 0

Rule
When Actor recieves event overlaps or collides with actor with tag platform
Change Attribute game.jumped to false
Change Attribute self.JumpCount to 0

dwibre

Will the can the code not keep up while the platform is moving.

dwibre

To test I made the platform not moveable and it is ok. So the problem is only when the platform moves. And Ideas anyone??

RThurman

Three was a similar thread several months ago. The issue was caused by screen wrapping. By any chance, do you have screen wrapping turned on?

dwibre

No, no screen wrapping

RThurman

OK -- by any chance is the platform moving up (and the actor moving down) so fast that they go past each other before before the collision can register?

dwibre

Yes my Hero actor had acceleration downwards of 1000. platform is moving up and down. But how can i solve this?

Thanks for the replys btw

RacetotheMoon

I had this problem in my game Doodle Ball Fall. Was never able to find a solution.

dwibre

What did you do for a work around @RacetotheMoon

RThurman

Instead of trusting collision detection -- how about testing both actors' relative position on the Y axis. Something like:

When (Actor1.Y - Platform.Y) < 50, then change attribute self.motion.linear velocity.Y to 400.

RacetotheMoon

There was no workaround.. it's still an issue.

I remember trying to get extra collision in there, but that only made the performance worse. Honestly, I just don't think GS is capable.

joshuawilde

Argh, ( @saladstraightshooter look at my pirate talk) does the actor on the platform move slowly through like its struggling or does it just move like it wasnt even there. I may have a way to solve this that I did in my current game but I need to know what it does when it is on the platform

dwibre

@joshuawilde It falls straight though as if it wasnt there

joshuawilde

WEIRD...try moving it by changing the x and y axis and constraining the linear velocity x, linear velocity y, and the angular velocity to 0...that should work (at least it worked for me)

dwibre

To close post this is how I fixed it. I made the platform size thicker and slowed the platform this game to code more time to register. Now it is working perfectly.