Decimal Place Movement on a Moving Platform

[FinalSpecimen]

I have a moving platform system that works like so:

"Platform" Flag 0 is on +
"Platform" Value A < 3
: Add 0.1 to "Platform" Value A

"Platform" Collides with "Right Boundary":
: Set "Platform" Flag 0 off
: Set "Platform" Flag 1 on

"Platform" Flag 1 is on +
"Platform" Value A > -3
: Sub 0.1 to "Platform" Value A

"Platform" Collides with "Left Boundary":
: Set "Platform" Flag 1 off
: Set "Platform" Flag 0 on


This sets the platform moving back and forth, with deceleration and acceleration every time it switches directions.

Then to make my player ride the platform:

"Feet Detector" is overlapping "Platform"
: Set X("Player") to (X("Player")+Alt Value A("Platform")

Everything works fine until the deceleration/acceleration starts, at which point the player "slides" on the platform. The equation does not appear to recognize the decimal values of the Platform with respect to the Player's position.... any suggestions?

[Sumo]

If you number isn't remembering the digits after the decimal point, try multiplying it by 1.0

That should keep it as a float.

[ChrisBurrows]

It's probably something simple. If you set an object to a floating point position, it is rounded to the nearest whole number, creating precision errors in future calculations. The work around is to store the actual floating point position in an alterable value and update it every frame. Or perhaps your events are misordered, but really it's impossible to pinpoint the culprit without seeing your code. Upload an mfa demonstrating the problem and you'll get help.

[FinalSpecimen]

@ChrisBurrows - I have solved my original problem from your suggestion - in the event editor, I moved the Platform events above the single "Always" event that moves the Platform relative to its Alt. Value. I believe when MMF2 reads down the events, it now sees to set Player to the Platform first, and move the Platform second, which solves the problem.

I am having a secondary issue however - when I land on the vertical platform, while it is moving down, the character bounces. Haven't been able to figure this one out. Below is the MFA link, let me know if you have any download issues. Thanks.

https://www.dropbox.com/s/i636ubj4ps...OBLEM.mfa?dl=0