RigidBody stuck on wall when jumped against

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Hello, I've recently been tinkering around with the Rigidbody component for a main character, although I seem to be running into a problem where should you jump against the wall, the object just kind of sticks there. Worse still, if you hit jump at the same time, it shoots the Rigidbody into the air.

I found a couple of potential fixes using raycasts, although I wanted to make sure that there isn't just an simpler approach for detecting when you're colliding with a vertical surface as opposed to a horizontal one.

Many thanks!

Answer 1

Best Answer

Answer by xandermacleod · Jul 16, 2012 at 01:12 PM

I had a similar problem. Here's what has been proposed:

http://forum.unity3d.com/threads/143698-Object-wont-fall-when-i-apply-horizontal-velocity-and-is-colliding-with-wall.

Your simple solution is to apply a new physics object to walls that has no friction. This has a few disadvantages, though, which make it an unattractive (albeit simple) solution.

That link has a raycast solution which should help. Beware spline ramps and stairs with this, though. :-)

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Ellis · Nov 26, 2014 at 11:52 AM 0

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Thank you!

Jeepjump · Mar 29, 2016 at 01:06 AM 3

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This is a good solution. I think I can add to it. I had this same problem and I applied a physics material to the walls, which works like a charm. But then you run into the problem of having to apply physics materials to every obstacle in the game. Anyhow. My solution is to add an extra collider to the object and put the frictionless material on it like a belt.

![alt text][1] [1]: /storage/temp/66878-solution.png

Like that except transparent. This gives you the ability to move around freely but not get snagged on walls or messed up on hills. Plus you only use the physics material on one object.

It seems too easy to be true, but the thing works. I'm sure this will present some terrible unforeseen problem in the future, but for now it works.

solution.png (60.1 kB)

josephquested Jeepjump · Apr 24, 2016 at 03:23 AM 0

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I did almost exactly this. I'm using cubes so it is like a weird, invisible box my players live inside, but it worked great. It's a simple and effective way to apply different physics to floor/wall surfaces.

PointyPigheadGames · Nov 14, 2016 at 12:09 AM 0

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It worked for my platformer game!

Answer 2

Answer by Max_power1965 · Dec 15, 2015 at 09:54 PM

There is new unity component called platform Effector 2D that will allow you to do that: more info here: http://docs.unity3d.com/Manual/class-PlatformEffector2D.html

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taylorthurlow · Nov 14, 2016 at 01:49 AM 0

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This is great! For anyone looking to use this, just keep your existing 2D Collider and add a Platform Effector 2D. Check the "Used By Effector" box in your Collider.

Answer 3

Answer by KINGSirDrMr · Nov 17, 2015 at 12:54 PM

With this method, he still stuck to walls for me. I fixed it by changing the Friction & Bounce Combine settings from "Average" to "Multiply" with the Dynamic & Static Friction set to 0.

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Siggytron · Feb 23 at 01:56 AM 0

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I did this on the object, and then on the walls I did this except that I set the Bounce for the walls to 0.1 so that they would repel my object slightly. That seemed to do the trick. Thanks for this solution.

Answer 4

Answer by simonheartscake · Jun 07, 2012 at 11:23 PM

How about attaching a trigger to the thing you're jumping against and have a function that when inside that trigger makes your character unable to jump.

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drunkenoodle · Jun 08, 2012 at 08:24 AM 0

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I'll have a play around with that idea, I think so long as the system knows that said surface is different to another, like you say, it should in theory stop the thing from going crazy.

Thank's for your help!

Answer 5

Answer by frankrs · Aug 15, 2014 at 07:56 PM

change your rigidbody2d components interpolate variable to exterpolate

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RigidBody stuck on wall when jumped against

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