My RigidbodyFPS (Unity Standard Assets) had a little shaking when collide with another 3d Object.
Hi Unity Forum, I need a little help for my RigidbodyFPS using the Unity Standard Asets, My RigidbodyFPS had a little shaking after collide with another 3D Object. I've been trying to figure this out still didnt find any solutions that fit with me. I found that my RigidbodyFPS shaking on Y position after collide with somethings. Below is the code of the RigidbodyFPS that I used:
using System; using UnityEngine; using UnityStandardAssets.CrossPlatformInput;
namespace UnityStandardAssets.Characters.FirstPerson { [RequireComponent(typeof (Rigidbody))] [RequireComponent(typeof (CapsuleCollider))] public class RigidbodyFirstPersonController : MonoBehaviour { [Serializable] public class MovementSettings { public float ForwardSpeed = 8.0f; // Speed when walking forward public float BackwardSpeed = 4.0f; // Speed when walking backwards public float StrafeSpeed = 4.0f; // Speed when walking sideways public float RunMultiplier = 2.0f; // Speed when sprinting public KeyCode RunKey = KeyCode.LeftShift; public float JumpForce = 30f; public AnimationCurve SlopeCurveModifier = new AnimationCurve(new Keyframe(-90.0f, 1.0f), new Keyframe(0.0f, 1.0f), new Keyframe(90.0f, 0.0f)); [HideInInspector] public float CurrentTargetSpeed = 8f;
if !MOBILE_INPUT
private bool m_Running;
endif
public void UpdateDesiredTargetSpeed(Vector2 input)
{
if (input == Vector2.zero) return;
if (input.x > 0 || input.x < 0)
{
//strafe
CurrentTargetSpeed = StrafeSpeed;
}
if (input.y < 0)
{
//backwards
CurrentTargetSpeed = BackwardSpeed;
}
if (input.y > 0)
{
//forwards
//handled last as if strafing and moving forward at the same time forwards speed should take precedence
CurrentTargetSpeed = ForwardSpeed;
}
if !MOBILE_INPUT
if (Input.GetKey(RunKey))
{
CurrentTargetSpeed *= RunMultiplier;
m_Running = true;
}
else
{
m_Running = false;
}
endif
}
if !MOBILE_INPUT
public bool Running
{
get { return m_Running; }
}
endif
}
[Serializable]
public class AdvancedSettings
{
public float groundCheckDistance = 0.01f; // distance for checking if the controller is grounded ( 0.01f seems to work best for this )
public float stickToGroundHelperDistance = 0.5f; // stops the character
public float slowDownRate = 20f; // rate at which the controller comes to a stop when there is no input
public bool airControl; // can the user control the direction that is being moved in the air
[Tooltip("set it to 0.1 or more if you get stuck in wall")]
public float shellOffset; //reduce the radius by that ratio to avoid getting stuck in wall (a value of 0.1f is nice)
}
public Camera cam;
public MovementSettings movementSettings = new MovementSettings();
public MouseLook mouseLook = new MouseLook();
public AdvancedSettings advancedSettings = new AdvancedSettings();
private Rigidbody m_RigidBody;
private CapsuleCollider m_Capsule;
private float m_YRotation;
private Vector3 m_GroundContactNormal;
private bool m_Jump, m_PreviouslyGrounded, m_Jumping, m_IsGrounded;
[HideInInspector]
public Vector2 RunAxis;
public Vector3 Velocity
{
get { return m_RigidBody.velocity; }
}
public bool Grounded
{
get { return m_IsGrounded; }
}
public bool Jumping
{
get { return m_Jumping; }
}
public bool Running
{
get
{
if !MOBILE_INPUT
return movementSettings.Running;
else
return false;
endif
}
}
private void Start()
{
m_RigidBody = GetComponent<Rigidbody>();
m_Capsule = GetComponent<CapsuleCollider>();
mouseLook.Init (transform, cam.transform);
}
private void Update()
{
RotateView();
if (CrossPlatformInputManager.GetButtonDown("Jump") && !m_Jump)
{
m_Jump = true;
}
}
private void FixedUpdate()
{
GroundCheck();
Vector2 input = GetInput();
if ((Mathf.Abs(input.x) > float.Epsilon || Mathf.Abs(input.y) > float.Epsilon) && (advancedSettings.airControl || m_IsGrounded))
{
// always move along the camera forward as it is the direction that it being aimed at
Vector3 desiredMove = cam.transform.forward*input.y + cam.transform.right*input.x;
desiredMove = Vector3.ProjectOnPlane(desiredMove, m_GroundContactNormal).normalized;
desiredMove.x = desiredMove.x*movementSettings.CurrentTargetSpeed;
desiredMove.z = desiredMove.z*movementSettings.CurrentTargetSpeed;
desiredMove.y = desiredMove.y*movementSettings.CurrentTargetSpeed;
if (m_RigidBody.velocity.sqrMagnitude <
(movementSettings.CurrentTargetSpeed*movementSettings.CurrentTargetSpeed))
{
m_RigidBody.AddForce(desiredMove*SlopeMultiplier(), ForceMode.Impulse);
}
}
if (m_IsGrounded)
{
m_RigidBody.drag = 5f;
if (m_Jump)
{
m_RigidBody.drag = 0f;
m_RigidBody.velocity = new Vector3(m_RigidBody.velocity.x, 0f, m_RigidBody.velocity.z);
m_RigidBody.AddForce(new Vector3(0f, movementSettings.JumpForce, 0f), ForceMode.Impulse);
m_Jumping = true;
}
if (!m_Jumping && Mathf.Abs(input.x) < float.Epsilon && Mathf.Abs(input.y) < float.Epsilon && m_RigidBody.velocity.magnitude < 1f)
{
m_RigidBody.Sleep();
}
}
else
{
m_RigidBody.drag = 0f;
if (m_PreviouslyGrounded && !m_Jumping)
{
StickToGroundHelper();
}
}
m_Jump = false;
}
private float SlopeMultiplier()
{
float angle = Vector3.Angle(m_GroundContactNormal, Vector3.up);
return movementSettings.SlopeCurveModifier.Evaluate(angle);
}
private void StickToGroundHelper()
{
RaycastHit hitInfo;
if (Physics.SphereCast(transform.position, m_Capsule.radius * (1.0f - advancedSettings.shellOffset), Vector3.down, out hitInfo,
((m_Capsule.height/2f) - m_Capsule.radius) +
advancedSettings.stickToGroundHelperDistance, Physics.AllLayers, QueryTriggerInteraction.Ignore))
{
if (Mathf.Abs(Vector3.Angle(hitInfo.normal, Vector3.up)) < 85f)
{
m_RigidBody.velocity = Vector3.ProjectOnPlane(m_RigidBody.velocity, hitInfo.normal);
}
}
}
private Vector2 GetInput()
{
Vector2 input = new Vector2
{
x = RunAxis.x,
y = RunAxis.y
};
movementSettings.UpdateDesiredTargetSpeed(input);
return input;
}
private void RotateView()
{
//avoids the mouse looking if the game is effectively paused
if (Mathf.Abs(Time.timeScale) < float.Epsilon) return;
// get the rotation before it's changed
float oldYRotation = transform.eulerAngles.y;
mouseLook.LookRotation (transform, cam.transform);
if (m_IsGrounded || advancedSettings.airControl)
{
// Rotate the rigidbody velocity to match the new direction that the character is looking
Quaternion velRotation = Quaternion.AngleAxis(transform.eulerAngles.y - oldYRotation, Vector3.up);
m_RigidBody.velocity = velRotation*m_RigidBody.velocity;
}
}
/// sphere cast down just beyond the bottom of the capsule to see if the capsule is colliding round the bottom
private void GroundCheck()
{
m_PreviouslyGrounded = m_IsGrounded;
RaycastHit hitInfo;
if (Physics.SphereCast(transform.position, m_Capsule.radius * (1.0f - advancedSettings.shellOffset), Vector3.down, out hitInfo,
((m_Capsule.height/2f) - m_Capsule.radius) + advancedSettings.groundCheckDistance, Physics.AllLayers, QueryTriggerInteraction.Ignore))
{
m_IsGrounded = true;
m_GroundContactNormal = hitInfo.normal;
}
else
{
m_IsGrounded = false;
m_GroundContactNormal = Vector3.up;
}
if (!m_PreviouslyGrounded && m_IsGrounded && m_Jumping)
{
m_Jumping = false;
}
}
}
}
Answer by arisharr · Apr 12, 2020 at 02:56 PM
Same here... didn't you found any answer?
Use "FPSController" prefab ins$$anonymous$$d of RigidbodyFPSController.
Answer by ics_de · Aug 18, 2020 at 10:31 AM
Hi,
Are you sure it is the RB Controller or is it perhaps the camera? I found out that the headbob script for the camera is a little bit buggy and it has something to do with the Horizontal and Vertical Bob Range.
Hope this helps :)
Answer by RomanGR8 · Apr 07, 2021 at 10:28 AM
I believe ics_de is correct and the shaking problem is caused by HeadBob.cs code in standard unity assets.
When I change below line in HeadBob.cs file from:
if (rigidbodyFirstPersonController.Velocity.magnitude > 0 && rigidbodyFirstPersonController.Grounded)
to:
if (rigidbodyFirstPersonController.Velocity.magnitude > 0.001f && rigidbodyFirstPersonController.Grounded)
then the shaking disappears for me. Notice that I changed "> 0" to "> 0.001f"
Hope this helps.