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Unity need character to rotate to face movement direction on planetoid

we are working on a student project and we chose to do a Mario Galaxy style platformer with planetoids and gravity (kind of a big mistake for my first coding project but I cannot back out of it now) but I am having a hard time to get the character to face it's movement direction without absolutely spazzing out.
I have only been coding for around 2 months so please excuse me being useless at trying to figure this out.
This is the code I use for movement for the character
using System.Collections.Generic;
using UnityEngine;
public class SC_RigidbodyWalker : MonoBehaviour
{
public float speed = 5.0f;
public bool canJump = true;
public float jumpHeight = 2.0f;
public Camera playerCamera;
public float lookSpeed = 2.0f;
public float lookXLimit = 60.0f;
bool grounded = false;
Rigidbody r;
Vector2 rotation = Vector2.zero;
float maxVelocityChange = 10.0f;
void Awake()
{
r = GetComponent<Rigidbody>();
r.freezeRotation = true;
r.useGravity = false;
r.collisionDetectionMode = CollisionDetectionMode.ContinuousDynamic;
rotation.y = transform.eulerAngles.y;
Cursor.lockState = CursorLockMode.Locked;
Cursor.visible = false;
}
void Update()
{
}
void FixedUpdate()
{
if (grounded)
{
// Calculate how fast we should be moving
Vector3 forwardDir = Vector3.Cross(transform.up, -playerCamera.transform.right).normalized;
Vector3 rightDir = Vector3.Cross(transform.up, playerCamera.transform.forward).normalized;
Vector3 targetVelocity = (forwardDir * Input.GetAxis("Vertical") + rightDir * Input.GetAxis("Horizontal")) * speed;
Vector3 velocity = transform.InverseTransformDirection(r.velocity);
velocity.y = 0;
velocity = transform.TransformDirection(velocity);
Vector3 velocityChange = transform.InverseTransformDirection(targetVelocity - velocity);
velocityChange.x = Mathf.Clamp(velocityChange.x, -maxVelocityChange, maxVelocityChange);
velocityChange.z = Mathf.Clamp(velocityChange.z, -maxVelocityChange, maxVelocityChange);
velocityChange.y = 0;
velocityChange = transform.TransformDirection(velocityChange);
r.AddForce(velocityChange, ForceMode.VelocityChange);
if (Input.GetButton("Jump") && canJump)
{
r.AddForce(transform.up * jumpHeight, ForceMode.VelocityChange);
}
}
grounded = false;
}
void OnCollisionStay()
{
grounded = true;
}
}
And here are the code for the gravity functions
using System.Collections.Generic;
using UnityEngine;
public class SC_PlanetGravity : MonoBehaviour
{
public Transform planet;
public bool alignToPlanet = true;
float gravityConstant = 9.8f;
Rigidbody r;
void Start()
{
r = GetComponent<Rigidbody>();
}
void FixedUpdate()
{
Vector3 toCenter = planet.position - transform.position;
toCenter.Normalize();
r.AddForce(toCenter * gravityConstant, ForceMode.Acceleration);
if (alignToPlanet)
{
Quaternion q = Quaternion.FromToRotation(transform.up, -toCenter);
q = q * transform.rotation;
transform.rotation = Quaternion.Slerp(transform.rotation, q, 1);
}
}
}

I can propose an alternative approach which I believe will simplify the problem, should you choose. If the root of your character is positioned at the center of the planetoid, then all movement can be handled as a rotation on root and you won't be fighting the inertia of the character or needing to orient it to the planetoid. Jumping could be handled by adding another child below the root that can slide up and down. Hope this helps!

I managed to get it working by having a new script added to the player avatar.
Here is the code, it's basically a copy paste of a part of the RigidBodyWalker script with some more added parts. It's not perfect but it works like I wanted it to.
using System.Collections.Generic;
using UnityEngine;
public class InputRotation : MonoBehaviour
{
public Camera playerCamera;
public float speed;
public float rotationSpeed;
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
//float horizontalInput = Input.GetAxis("Horizontal");
//float verticalInput = Input.GetAxis("Vertical");
}
private void FixedUpdate()
{
Vector3 forwardDir = Vector3.Cross(transform.up, -playerCamera.transform.right).normalized;
Vector3 rightDir = Vector3.Cross(transform.up, playerCamera.transform.forward).normalized;
Vector3 targetVelocity = (forwardDir * Input.GetAxis("Vertical") + rightDir * Input.GetAxis("Horizontal")) * speed;
if(targetVelocity != Vector3.zero)
{
Quaternion toRotation = Quaternion.LookRotation(targetVelocity, transform.up);
transform.rotation = Quaternion.RotateTowards(transform.rotation, toRotation, rotationSpeed * Time.deltaTime);
}
}
}

Unity limit rigidbody velocity in specific direction with addforce?

I am creating a third person player movement script. The movement adds force to the rigidbody relative to the direction of the camera. I want to have a max speed limit in the forward direction (cForward), and a separate max speed limit for the horizontal/right direction (cRight). Normally I would be fine with setting the velocity directly, however this screws up gravity for the player. Is there any way to achieve this by using addforce OR is there a way to get gravity working properly when setting velocity directly? Here is what I have so far(some of my other attempts at a solution are commented out):
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerMovement : MonoBehaviour
{
public Camera mainCamera;
public float horizontalWalkSpeed = 500.0f;
public float verticalWalkSpeed = 500.0f;
public float horizontalSprintSpeed = 1000.0f;
public float verticalSprintSpeed = 1000.0f;
public bool isSprinting = false;
public bool cannotMove = false;
public float accelerationSpeed = 0.2f;
private Rigidbody pRigidBody;
private Vector2 currentInputVector;
private Vector2 smoothInputVelocity;
// Start is called before the first frame update
void Start()
{
pRigidBody = GetComponent<Rigidbody>();
}
// Update is called once per frame
void Update()
{
HandleInput();
}
private void FixedUpdate()
{
Vector3 cForward = mainCamera.transform.forward;
Vector3 cRight = mainCamera.transform.right;
cForward.y = 0.0f;
cRight.y = 0.0f;
cForward.Normalize();
cRight.Normalize();
if (!cannotMove && !isSprinting)
{
Vector3 vForce = cForward * currentInputVector.y * verticalWalkSpeed;
Vector3 hForce = cRight * currentInputVector.x * horizontalWalkSpeed;
//Vector3 gravity = Vector3.up * -9.8f;
Vector3 force = vForce + hForce;
//float verSpeed = Vector3.Dot(pRigidBody.velocity, cForward);
//float horSpeed = Vector3.Dot(pRigidBody.velocity, cRight);
//if (verSpeed >= 0 && verSpeed <= verticalWalkSpeed)
//{
// pRigidBody.AddForce(vForce, ForceMode.VelocityChange);
//}
//if(horSpeed < horizontalWalkSpeed)
//{
// pRigidBody.AddForce(hForce, ForceMode.VelocityChange);
//}
//float velocityInDirection = Vector3.Dot(pRigidBody.velocity, cForward);
//if(velocityInDirection > verticalWalkSpeed)
//{
// pRigidBody.AddForce(-vForce, ForceMode.VelocityChange);
//}
//pRigidBody.velocity = force;
pRigidBody.AddForce(force, ForceMode.VelocityChange);
}
else if (!cannotMove && isSprinting)
{
pRigidBody.velocity = cForward * currentInputVector.y * verticalSprintSpeed * Time.fixedDeltaTime + cRight * currentInputVector.x * horizontalSprintSpeed * Time.fixedDeltaTime;
}
}
private void HandleInput()
{
isSprinting = Input.GetButton("Sprint");
Vector2 input = new Vector2(Input.GetAxis("Horizontal"), Input.GetAxis("Vertical"));
currentInputVector = Vector2.SmoothDamp(currentInputVector, input, ref smoothInputVelocity, accelerationSpeed);
}
}

I think this thread may help --https://answers.unity.com/questions/9985/limiting-rigidbody-velocity.html.
Basically, there are two methods.
Add force in the opposite direction and increase with the extent to which the object exceeds the limit. This requires additional calculations and tests.
simply normalize the velocity value when it exceeds the limit.

Unity 3D Aerial movement and jumping problem

Aerial Movement Problem
I've followed a few tutorials and I've set up a decent base for a game, - basic player movement, entity animation, health, HUD UI, etc. - but I wanted to make the movement a bit smoother, less snappy, more physics-based, you get the gist. I made it a bit better and it definitely meets all the requirements for terrain-based movement (i.e: movement across physical surfaces - while the player is on the ground), but I want jumping to be a bit more dynamic, and I know what I want to do but I'm having trouble doing it.
Here's the issue:
If the player moves (regardless of whether sprintActive is toggled or not) and they jump after moving, the player gains speed in the air way too fast, and they can't move in any direction other than forward (relative to their rotation).
Here's the objective:
I set it up so the velocity is simply redirected to whatever direction is forward from the playerRB, but I think I would prefer if the velocity didn't immediately change direction, but rather gradually curve as the player tries to move a certain direction? I know I may be asking for a lot, but some advice on how to do this, or if I should try a different approach, would be very much appreciated.
Code used:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class RFPSPlayerMovement : MonoBehaviour
{
public float speedForce;
public float jumpForce;
public float diveForce;
public Transform groundCheck;
public float groundDistance = 0.25f;
public LayerMask groundMask;
private Transform playerBody;
private Rigidbody playerRB;
private bool isGrounded;
private bool sprintActive = false;
private bool delay = false;
private float lateralSpeed;
private Vector3 velocity;
float xMov, zMov;
float xSpeed, zSpeed;
IEnumerator DelayTimer(float duration)
{
delay = true;
yield return new WaitForSeconds(duration);
delay = false;
}
void Start()
{
playerBody = GetComponent<Transform>();
playerRB = GetComponent<Rigidbody>();
}
void Update()
{
xMov = Input.GetAxisRaw("Horizontal") * Time.deltaTime;
zMov = Input.GetAxisRaw("Vertical") * Time.deltaTime;
if(Input.GetKey(KeyCode.LeftShift))
{
sprintActive = true;
}
else
{
sprintActive = false;
}
if(Input.GetKey(KeyCode.W))
{
Movement(0, speedForce);
}
if(Input.GetKey(KeyCode.S))
{
Movement(0, -speedForce);
}
if(Input.GetKey(KeyCode.A))
{
Movement(-speedForce, 0);
}
if(Input.GetKey(KeyCode.D))
{
Movement(speedForce, 0);
}
if(Input.GetKey(KeyCode.Space))
{
if(delay == false)
{
if(isGrounded)
{
StartCoroutine(DelayTimer(0.05f));
Jump(jumpForce);
}
}
}
}
void FixedUpdate()
{
velocity = playerRB.velocity;
lateralSpeed = new Vector2(playerRB.velocity.x, playerRB.velocity.z).magnitude;
isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);
if(isGrounded)
{
velocity = new Vector3(
xMov + (float) (playerRB.velocity.x * 0.90),
playerRB.velocity.y,
zMov + (float) (playerRB.velocity.z * 0.90)
);
}
else
{
velocity.x = (float) (playerBody.forward.x * lateralSpeed);
velocity.y = playerRB.velocity.y;
velocity.z = (float) (playerBody.forward.z * lateralSpeed);
}
playerBody.eulerAngles = new Vector3(0, playerBody.eulerAngles.y, 0);
playerRB.velocity = velocity;
}
void Movement(float xAmount, float zAmount)
{
if(sprintActive)
{
xSpeed = (float) (xAmount * 2);
zSpeed = (float) (zAmount * 2);
}
else
{
xSpeed = xAmount;
zSpeed = zAmount;
}
playerRB.AddRelativeForce(new Vector3(xSpeed, 0, zSpeed), ForceMode.Impulse);
}
void Jump(float yAmount)
{
playerRB.AddRelativeForce(new Vector3(0, yAmount, 0), ForceMode.Impulse);
}
}

Unity Raycasting problem in some part of the scene

I started doing some simple stuff in Unity (goal is to make a great game) so I made a simple Player Controller.
public class PlayerController : MonoBehaviour
{
public float walkingSpeed;
public float jumpSpeed;
public bool jumpFlag = false;
public float maxJumpDistance = 1.0f;
Rigidbody rb;
Collider col;
Vector3 playerSize;
// Start is called before the first frame update
void Start()
{
rb = GetComponent<Rigidbody>();
col = GetComponent<Collider>();
playerSize = col.bounds.size;
}
// Update is called once per frame
void FixedUpdate()
{
WalkHandler();
JumpHandler();
}
void WalkHandler()
{
float horizonstalAxis = Input.GetAxis("Horizontal");
float verticalAxis = Input.GetAxis("Vertical");
Vector3 movement = new Vector3(-horizonstalAxis * walkingSpeed * Time.deltaTime, 0, -verticalAxis * walkingSpeed * Time.deltaTime);
rb.MovePosition(transform.position += movement);
}
void JumpHandler()
{
float jumpAxis = Input.GetAxis("Jump");
//Debug.Log(jumpAxis);
if (jumpAxis > 0)
{
bool isGrounded = CheckGrounded();
if (jumpFlag != true && isGrounded)
{
jumpFlag = true;
Vector3 jumpVector = new Vector3(0, jumpSpeed * Time.deltaTime, 0);
rb.AddForce(jumpVector, ForceMode.VelocityChange);
}
}
else
{
jumpFlag = false;
}
}
bool CheckGrounded()
{
Vector3 checkerPoint = transform.position + new Vector3(0, -playerSize.y / 2, 0);
bool grounded = Physics.Raycast(checkerPoint, -Vector3.up, maxJumpDistance);
return grounded;
}
I came across a wierd problem. In some parts of the scene my method JumpHandler is not working. After reaching some z coordinates, the CheckGrounded returns False instead of True, even though the Raycast direction is set down.
Can anyone help?

Unity3D smooth camera movement and lookAt

Got stuck with camera movement in my Unity3D C# project.
What I have:
some objects on the scene
a camera, which would fly from any object's poition or from it's own current position
What I need:
smooth rotare camera to one of the object's origin
fly to the spot near the object (there is an empty, so I fly to empty's coords)
Algorithm: rotate to the object's origin, when rotation finishes, start to fly to the empty's position. while flying, look at object's origin.
The problem is that it's not smooth, the camera "jumps" at the end of the movement.
My C# code (attached to the camera):
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class testMove : MonoBehaviour {
public GameObject startObj;
public GameObject endObj;
public float speed = 1.0F;
private float startTime;
private float journeyLength;
private string endObjName;
private GameObject endObjLookAt;
void Start () {
startTime = Time.time;
if (startObj) {
} else {
startObj = this.gameObject;
}
journeyLength = Vector3.Distance(startObj.transform.position, endObj.transform.position);
endObjName = endObj.name;
endObjLookAt = GameObject.Find(endObjName + "LookAt");
}
void Update () {
if (endObj) {
float distCovered = (Time.time - startTime) * speed;
float fracJourney = distCovered / journeyLength;
tweenLook(endObjLookAt, fracJourney);
float angle = Quaternion.Angle(transform.rotation, Quaternion.LookRotation(endObjLookAt.transform.position - transform.position));
if (angle <= 0.0001) {
Debug.Log("rotation finished");
tweenPos(startObj, endObj, fracJourney);
transform.LookAt(endObjLookAt.transform.position);
}
}
}
private void tweenPos(GameObject startObj, GameObject endObj, float fracJourney) {
Vector3 newposition = Vector3.Lerp(startObj.transform.position, endObj.transform.position, fracJourney);
transform.position = newposition;
}
private void tweenLook(GameObject endObjLookAt, float fracJourney) {
Quaternion newrotation = Quaternion.LookRotation(endObjLookAt.transform.position - transform.position);
transform.rotation = Quaternion.Slerp(transform.rotation, newrotation, fracJourney);
}
}

Since what you're trying to achieve implies doing actions one after another, I'd recommend using a Coroutine:
public class testMove : MonoBehaviour
{
public Transform startObj;
public Transform endObj;
private Transform endObjLookAt;
public float rotationDuration;
public AnimationCurve rotationCurve;
public float movementDuration;
public AnimationCurve movementCurve;
private IEnumerator moveAndRotateCameraIEnumerator;
void Start()
{
// If you want to do it on start just call MoveAndRotateCamera() here, else call if from anywhere you want (a script, a game button, ...)
}
void Update()
{
if(Input.GetKeyDown(KeyCode.Space))
{
MoveAndRotateCamera();
}
}
public void MoveAndRotateCamera(Transform startTransform = null, Transform endTransform = null)
{
if(startTransform)
{
startObj = startTransform;
}
else
{
startObj = this.transform;
}
if(endTransform)
{
endObj = endTransform;
}
endObjLookAt = GameObject.Find(endObj.name + "LookAt").transform;
if(moveAndRotateCameraIEnumerator != null)
{
StopCoroutine(moveAndRotateCameraIEnumerator);
}
moveAndRotateCameraIEnumerator = MoveAndRotateCameraCoroutine();
StartCoroutine(moveAndRotateCameraIEnumerator);
}
private IEnumerator MoveAndRotateCameraCoroutine()
{
//ROTATION
Vector3 startEulerAngles = transform.eulerAngles;
transform.LookAt(endObjLookAt);
Vector3 deltaEulerAngles = new Vector3(Mathf.DeltaAngle(startEulerAngles.x, transform.eulerAngles.x), Mathf.DeltaAngle(startEulerAngles.y, transform.eulerAngles.y), Mathf.DeltaAngle(startEulerAngles.z, transform.eulerAngles.z));
Debug.Log("Starting rotation...");
float timer = 0.0f;
while(timer < rotationDuration)
{
timer += Time.deltaTime;
transform.eulerAngles = startEulerAngles + deltaEulerAngles * rotationCurve.Evaluate(timer / rotationDuration);
yield return new WaitForEndOfFrame();
}
transform.eulerAngles = startEulerAngles + deltaEulerAngles;
Debug.Log("Rotation done!");
//----
//MOVEMENT
Vector3 startPosition = transform.position;
Debug.Log("Starting movement...");
timer = 0.0f;
while(timer < movementDuration)
{
timer += Time.deltaTime;
transform.position = Vector3.Lerp(startPosition, endObj.position, movementCurve.Evaluate(timer / movementDuration));
transform.LookAt(endObjLookAt);
yield return new WaitForEndOfFrame();
}
transform.position = endObj.position;
transform.LookAt(endObjLookAt);
Debug.Log("Movement done!");
//----
}
}
Please note a few things here:
Changed your GameObject variables to Transform ones because you always used them to get to the Transform component so you can use it directly instead
Added a time notion instead of a speed notion for rotation and movement (you can also use speed instead: simply multiply the Time.deltaTime by your speed factor)
Using AnimationCurve allows you to adjust the way the rotation/movement will occur: simply set the curve in Inspector (curve must start at (0, 0) and end at (1, 1))
Hope this helps,