WalkOnWalls

Controller.cs

 protected virtual void HandleStickyWallRotation()
        {   

            // if our controller has hit any sticky platform. Normally then our .State.StickySlopeAngle will tell us where to rotate to
            if (State.OnAStickyPlatform && !_shell.isInShell) //&& _jump.MyJumpState == JumpState.NotJumping
            {
                //Debug.Log("handle sticky wall rotation");
                // if we were not grounded last frame that means we just hit sticky wall, set y velocity to zero to keep you b
                // this would be the first frame we hit sticky wall
                    if (!State.WasStuckLastFrame)
                    {
                    if ((Vector2.Angle(Vector2.up, State.StickySlopeNormal) > 110))
                    {   
                        if (_horizontalMovement.FlippedInput != true)
                        {
                            _horizontalMovement.FlippedInput = true;
                            _character.Flip();
                        }
                        
                    }               
                    else
                    {
                        _horizontalMovement.FlippedInput = false;
                    }
                }

                // get difference between our character angle and our desired angle          
                float _gravAngle = Vector2.Angle(State.StickySlopeNormal, transform.up);
                //if (_gravAngle != 0) Debug.Log(_gravAngle);

                //lerp to it for smooth results, fixing bug of weird jiggling. you need this as well so it insta lerps angels larger than 90. Without this you dont rotate fast enough to stick to a wall sometimes and you bounce off
                if (_gravAngle < 30)
                {
                    _rotateLerpTimer += Time.deltaTime / 4;
                    _gravAngle = Mathf.Lerp(0, _gravAngle, _rotateLerpTimer);
                } else
                {
                    //Debug.Log("flip " + _gravAngle);
                   // SetVerticalForce(0);
                }
                
                if (_rotateLerpTimer > 1)
                    _rotateLerpTimer = 0;

                // the angles didnt flip correctly when character was walking left, only worked with right,
                // this flips the angles so they work both ways
                Vector3 _crossBelowSlopeAngle = Vector3.Cross(transform.up, State.StickySlopeNormal);
                if (_crossBelowSlopeAngle.z < 0)
                {
                    _gravAngle = -_gravAngle;
                }

                // get our current z rotation
                float _overrideGravityAngle = transform.localEulerAngles.z;

                // we add the desired difference to our angle to lerp outselves to have the correct rotation 
                _overrideGravityAngle += _gravAngle;

                // convert the float we made back into a euler because you cant just do transform.localEulerAngles.z = 
                // this means you have to create a float then convert it back 
                _newRotationAngle.z = _overrideGravityAngle;
                //rotate our character
                transform.localEulerAngles = _newRotationAngle;
            } 
        }