Character Controlling grinding along any non-flat Terrain

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Hey all,

Working on a 3rd person controller that is using Unity's built-in Character Controller.

As a test area, I simply made a small terrain, and made random bumps, plateaus, etc, in order to test out the controls.

However, on anything that isn't the default 0 height flat terrain, even completely flat plateaus, my character almost constantly slowly grinds along the ground, happening more so when I'm going left or right.

I'm using the built-in Character Controller functionality, so forward movement is as simple as

 controller.Move(transform.forward * speed * Time.deltaTime);

Anyone had this issue before? No problems falling through the world, but this grinding will prevent any use of this in game.

I should also mention the height is 1, radius is 0.5, slope limit is 45, step offset is 0.3, skin width is 0.08, and min move distance is 0.

Thanks for any help!

Answer 1

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Answer by Owen-Reynolds · Mar 27, 2012 at 02:43 PM

One fix (have done it, but lost the code) for "not always grounded over uneven terrain" is to toss in an extra check: "if you were grounded 0.05 seconds ago, didn't just jump." Something like:

 float groundedUntil=0.0f; // will be a game time

 // movement code:
 if(Time.time<groundedUntil) { // replaces grounded check

   if( jumping ) {
     groundedUntil=0; // "turn off" the grace period -- we aren't grounded
     ...
   }
 }

 grounded = .....
 if(grounded) groundedUntil=Time.time+0.05f;

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Befall · Mar 28, 2012 at 12:25 AM 0

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What I ended up doing was essentially a jump timer, but I also added in constant downward gravity to the walking phase as well. Otherwise, I ended up with this "fall every 0.X seconds when the jump phase activates" kinda thing. This is smooth and sexy.

Thanks for the help, again. :)

Character Controlling grinding along any non-flat Terrain

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