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Physical Constraint to Walls

Is it possible to constrain a physics actor so thats its movement is attached to the floor, and if a force is applied it will not leave contract with the floor?

Additionally could this be expanded to allow it to roll along the floor and up a wall perhaps onto a ceiling, like a strange version of magnetic air hockey!

Many thanks, this is really important!

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asked Mar 20 '19 at 07:22 PM in Using UE4

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avatar image TheEssenceFlux Mar 21 '19 at 01:08 AM

Worth mentioning that im applying a force with a 'hammer' to a ball and want that force not to move the object off the surface at all think rocket league but were the ball is perma stuck to the ground!

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Hi TheEssenceFlux,

One simple way to constrain a physic actor to a plane (wall, floor) is by playing around with the constraints options inside the Physics category.

Physic category - Constraints

In this example, I have locked the position on Z axis, which makes my physic actor stay on a plane parallel to the ground. You can aswell look into the Mode drop-down for more specific needs.

Hope it helps!


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answered Mar 21 '19 at 01:36 AM

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avatar image TheEssenceFlux Mar 21 '19 at 02:30 AM

But let's say I wanted an arena like rocket league with curved edges but I wanted the ball to never let go of the sides while still moving when a force is applied is this possible?

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