Object drifting to left or right without reason
I'm making a 2D top-down shooter style game. I've gotten all the movement bits for the player down, but in it's current state after moving around for a while the player will start to drift left or right relative to the direction it's pointing. Things to note:
- With the exception of rigidbody this is all hand-written code. 
- All of the positioning and rotation is being applied to the rigidbody instead of the transform. 
- I have turned off each script that dictates how the player behaves individually, and none of those things were the cause. 
- The inputs are not returning unwanted values and no joysticks are plugged in. 
- This behavior will temporarily stop if it bumps up against a wall in the direction it's moving. 
- The controls are to move up/down/left/right relative to the screen, and not the object. The object however is moving relative to it's direction. 
This one's a doozy.
Answer by abledbody · Jan 17, 2016 at 04:15 AM
Found the solution, the rigidbody was rotating even though it didn't look like it, which caused phantom forces. A simple rb.angularVelocity = Vector3(0,0,0); fixed that right up.
Thank you very much, this solved a similar problem I was also experiencing.
Your answer
 
 
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