ClampMagnitude but with different speeds

Question

So im trying to fix my character moving faster on the diagonals and it is still not working and i dont know what i am doing wrong. My character moves also moves slower when going backwards also going sideways. This is what i have tried:

 float axisX = joystickInput.axis.x;
 float axisY = joystickInput.axis.y;
             
 // Speed and axis
 if (axisY < 0) { speed = Mathf.Abs(-axisY) * backSpeed; } // Speed on the negative y-axis       
 else { speed = Mathf.Abs(axisY) * forwardSpeed; } // Speed on the y-axis
 speed += Mathf.Abs(axisX) * sideSpeed; // Speed on the x-axis
 
 // Direction of the VR headset
 Vector3 direction = Player.instance.hmdTransform.TransformDirection(new Vector3(axisX, 0, axisY));
 
 // Fixes faster movement on diagonals
 Vector3 clamp = Vector3.ClampMagnitude(direction, speed);
 
 //Apply
 CharController.Move(Vector3.ProjectOnPlane(clamp, Vector3.up) * speed * Time.deltaTime);

Answer 1

Best Answer

Answer by viesc123 · May 29, 2020 at 07:01 PM

I like to work visually so I would recommend an AnimationCurve that shows how angle and speed relate. You can tweak this in the Inspector for better results:

     // from 0° = forward to 180° = backwards 
     public AnimationCurve speedByAngle = new AnimationCurve(new Keyframe(0, 1f), new Keyframe(90f, 0.5f), new Keyframe(180, 0.5f));
 
     void MoveController()
     {
         float axisX = joystickInput.axis.x; // assuming this goes from -1 to 1
         float axisY = joystickInput.axis.y; // assuming this goes from -1 to 1
 
         // create a direction vector directly from the input
         Vector3 dir = new Vector3(axisX, 0, axisY).normalized;
 
         // now calculate the angle between forward and your move vector
         // and use this to get the speed from the animation curve
         float speed = speedByAngle.Evaluate(Vector3.Angle(dir, Vector3.forward));
 
         Vector3 global = Player.instance.hmdTransform.TransformDirection(dir);
 
         CharController.Move(global * speed * Time.deltaTime);
     }

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Tolstyy · May 29, 2020 at 08:49 PM 0

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Worked like a charm! Thank you so much!!

Tornby · Apr 05 at 11:02 AM 0

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The approach using an animation curve is very smart. Thank you for your answer, very helpful.

ClampMagnitude but with different speeds

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