Camera Follow Causing Player To Stutter Unity 2D - c#

I'm currently trying to make the camera follow the player smoothly. The script works fine but the problem is that this script is causing the player to stutter at a certain point. For example, if the player is at X:3, the player would stutter but then if the player was at X:-6, the player would stop stuttering. I'm 100% sure that this script is the problem because if I remove the script, the player stops stuttering.
Here is the camera follow script:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class CameraFollowing : MonoBehaviour
{
[SerializeField]
private Transform target;
[SerializeField]
private Vector3 cameraOffset;
[SerializeField]
private float followSpeed = 10f;
[SerializeField]
private float xMin = 0f;
private Vector3 velocity = Vector3.zero;
private void FixedUpdate()
{
Vector3 targetPos = target.position + cameraOffset;
Vector3 clampedPos = new Vector3(Mathf.Clamp(targetPos.x, xMin, float.MaxValue), targetPos.y, targetPos.z);
Vector3 smoothPos = Vector3.SmoothDamp(transform.position, clampedPos, ref velocity, followSpeed * Time.fixedDeltaTime);
transform.position = smoothPos;
}
}
If you know the answer or possible causes please tell me, I'm trying to release, publish, etc, this game by the end of this year. Thanks! :D

By stutter I think you mean shake or tremble (not familiar with the stutter word).
I would try to adjust to the docs example. Use void Update() or LateUpdate() instead of FixedUpdate().
You may want to use void LateUpdate() if you want your game to be accurate. This method will be called after the input is detected, so it will react better. I believe that this is the better choice, because it will be more accurate than Update().
I would also keep track of where in the scene the shake starts if its from a determined point on, and check for some misplaced collider near the position where the undesired shake starts.

Related

I want my camera to move further from the player the faster they go. Unity C#

I'm working on a 3d side scroller BMX game. It's going pretty well so far but one of the problems I'm having now is that when going very fast it's hard for the player to see the upcoming terrain and will crash into things they would otherwise easily avoid. How can I get the camera to move further back and get a wider view for the player while moving? Here's the current camera code.
private Vector3 _offset;
[SerializeField] private Transform target;
[SerializeField] private float smoothTime;
private Vector3 _currentVelocity = Vector3.zero;
private void Awake()
{
_offset = transform.position - target.position;
}
private void LateUpdate()
{
Vector3 targetPosition = target.position + _offset;
transform.position = Vector3.SmoothDamp(current: transform.position, targetPosition, ref _currentVelocity, smoothTime);
I'm very new to Unity and I really have no idea where to start. I tried adding a rigidbody to the camera and maybe change it's distance with .magnitude but I'm really very new to this.
According to my experience in racing games, what you want to change should be the FOV rather than moving further, so you can simply try this:
cam.fieldOfView = Mathf.Clamp(playerSpeed * factor, minFOV, maxFOV);

Unity3D Player walking through and on the Stone

Hello guys my Player is walking on the Stone and through the Stone. The Player called Champ has a Box Collider and the Stone has a Mesh Collider. Also the Player has Rigidbody. I tried everthing i found but nothing helped me with my problem.
MovePlayer.cs Script
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class MovePlayer : MonoBehaviour
{
Rigidbody rb;
public float speed = 10f;
private Vector3 moveDirection;
public float rotationSpeed = 0.05f;
void Start()
{
rb = GetComponent<Rigidbody>();
}
void Update()
{
moveDirection = new Vector3(Input.GetAxisRaw("Horizontal"), 0f, Input.GetAxisRaw("Vertical")).normalized;
}
void FixedUpdate()
{
rb.MovePosition(rb.position + transform.TransformDirection(moveDirection * speed * Time.deltaTime));
RotatePlayer();
}
void RotatePlayer()
{
if (moveDirection != Vector3.zero)
{
transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(moveDirection.normalized), rotationSpeed);
}
transform.Translate(moveDirection * speed * Time.deltaTime, Space.World);
}
}
Player Settings in Inspector
Stone Settings in Inspector
Scene Preview
Thank you for help guys! :)
So guys i found out the Solution with the help of the guys posted above.
The problem was that my player speed was too high in the Code the speed was on float 10, but i changed the velocity in the Unity Inspector of Player to float 50.
So my first step to solve the problem was to set the speed down to float 10, but i still wanted to move with a speed of 50f...
The Solution for this problem was that in Unity 2020.3.24f1 and higher (probably lower) you can go to Edit>Project Settings>Physics and set the "Default Max Depenetration Velocity" to the speed you want the objects stopping and not going through. In my case i wanted to move with speed = 50f so i needed to change Default Max Depenetration Velocity to 50.
I hope i can help someone with this Answer in future!
Best Wishes
Max G.
Tested your code and collisions seem to be working fine on my end.
Tested it by adding the script to a GameObject with box collider and creating a small level using cubes. Also made a wall that I modified to use mesh-collider instead of box collider. Player collided normally with objects in the scene.
You should double check your Layer collision matrix from Project Settings > Physics whether you've set layers player and wall to collide.
You could also try adding new cube to the scene and setting its layer to wall to see if player collides with it. If it does then the there might be issues with the mesh of the stone.
If not then I would disable animator and Gravity Body components from the player to make sure they're not interfering with the collisions
Rigidbody.MovePosition basically makes the player teleport which can cause unexpected behaviors. It's generally recommended to use Rigidbody.AddForce instead. For precise movement ForceMode.VeloictyChange can be used.
public float maxVelocityChange = 5.0f;
void moveUsingForces(){
Vector3 targetVelocity = moveDirection;
// Doesn't work with the given RotatePlayer implementation.
// targetVelocity = transform.TransformDirection(targetVelocity);
targetVelocity *= speed;
// Apply a force that attempts to reach our target velocity
Vector3 velocity = rb.velocity;
Vector3 velocityChange = (targetVelocity - velocity);
velocityChange.x = Mathf.Clamp(velocityChange.x, -maxVelocityChange, maxVelocityChange);
velocityChange.z = Mathf.Clamp(velocityChange.z, -maxVelocityChange, maxVelocityChange);
velocityChange.y = 0;
rb.AddForce(velocityChange, ForceMode.VelocityChange);
}
In this code you have applied motion twice and the problem is that transform.Translate is used. Remember that Rigidbody class methods are sensitive to colliders and recognize them, but transform is not the same and only applies a point-to-point shift. To solve the problem, I think you will not need a duplicate motion code with translate in the rotate section.
void RotatePlayer()
{
if (moveDirection != Vector3.zero)
{
transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(moveDirection.normalized), rotationSpeed);
}
// removed translate
}

Unity sprite flying off map when rotating

I am currently programming a game where the player must tilt their phone to rotate the world so they can navigate through a maze. This is proving difficult as when I rotate the phone the sprite flies off screen.
I am assuming this is to do with the forces between the character's and the world's colliders which ends up launching the character.
However, I want the character to have gravity follow the players relative down direction so that when the character rotates it falls the direction of its feet.
Therefore, how should I rotate the direction of gravity to be relative to the sprite's direction and prevent the player from flying off when rotating?
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class GyroController : MonoBehaviour {
private Gyroscope Gyro ;
private float rotation;
private Vector3 startEulerAngles;
private Vector3 startGyroAttitudeToEuler;
public GameObject Player = null;
private void Awake () {
if (SystemInfo.supportsGyroscope) {
Gyro = Input.gyro;
Gyro.enabled = false;
startEulerAngles = transform.eulerAngles;
startGyroAttitudeToEuler = Input.gyro.attitude.eulerAngles;
Debug.Log("Gyro Enabled");
}
else {
Debug.Log("No Gyro Detected");
}
}
private void Update()
{
Vector3 deltaEulerAngles = Input.gyro.attitude.eulerAngles - startGyroAttitudeToEuler;
deltaEulerAngles.x = 0.0f;
deltaEulerAngles.y = 0.0f;
Player.transform.eulerAngles = startEulerAngles - deltaEulerAngles;
}
}
So far I have only tried one method of changing the direction of gravity which involves moving the center of gravity which only made the character fall through other colliders. Hence, my gravity code is not included in this snippet.
I am not asking for the code to be made for me, just a direction for me to look in as i've hit a dead end using rigidbody2d
Thankyou.

Prevent object from passing through collider

I am building a 3D maze that is moved by the player. I'm taking a "labyrinth" approach and having a small ball be maneuvered through the maze when the player moves the maze. The problem occurs when the player moves a wall that the ball is currently resting on in the direction of the ball. The ball passes through the wall and stops on the next available wall.
The maze uses a mesh collider and rigidbody and the ball is a sphere collider.
I have drastically increased the physics frame rate to no avail. Considering the complexity of the maze and the potentially large number of maze combinations I really don't want to attach simple colliders to every wall. Any tips, tricks, suggestions, comments, etc. would be appreciated.
Ball Script for continious rotation:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class ballGravity : MonoBehaviour {
public Rigidbody m_Rigidbody;
public Vector3 m_EulerAngleVelocity;
// Use this for initialization
void Start () {
m_EulerAngleVelocity = new Vector3 (0, 100, 0);
m_Rigidbody = GetComponent<Rigidbody>();
}
// Update is called once per frame
void FixedUpdate () {
Quaternion deltaRotation = Quaternion.Euler (m_EulerAngleVelocity * Time.deltaTime);
m_Rigidbody.MoveRotation (m_Rigidbody.rotation * deltaRotation);
}
}
Maze Rotation Script:
using UnityEngine;
using System.Collections;
public class rotObj : MonoBehaviour
{
private float baseAngle = 0.0f;
float rotSpeed = 10;
void OnMouseDown(){
Vector3 pos = Camera.main.WorldToScreenPoint(transform.position);
pos = Input.mousePosition - pos;
baseAngle = Mathf.Atan2(pos.y, pos.x) * Mathf.Rad2Deg;
baseAngle -= Mathf.Atan2(transform.right.y, transform.right.x) *Mathf.Rad2Deg;
}
void OnMouseDrag(){
//float rotY = Input.GetAxis("Vertical")*rotSpeed*Mathf.Deg2Rad;
//gm.transform.Rotate(Vector3.right, rotY);
Vector3 pos = Camera.main.WorldToScreenPoint(transform.position);
pos = Input.mousePosition - pos;
float ang = Mathf.Atan2(pos.y, pos.x) *Mathf.Rad2Deg - baseAngle;
transform.rotation = Quaternion.AngleAxis(ang, Vector3.forward);
}
}
To get consistent physics state its best to move colliders within FixedUpdate - if you move colliders in a OnMouseXX stage of the pipeline (Consider consulting https://docs.unity3d.com/Manual/ExecutionOrder.html), you risk that the change might be missed next time FixedUpdate is called. I.e. your ball moves through the state of your scene based on how it was before you rotated the maze, and with some unfortunate timings its possible that collisions get missed.
If you already tried with a tighter timestep, consider queueuing the OnMouseDrag change, like store the resulting rotation in a variable, and apply it in FixedUpdate, so it is applied just in case for next physics computation.
you may also consider moving your ball at the same time as you rotate your maze, quickly moving a mesh collider against a much smaller rigidbody is a sure source of trouble. Can you move a camera instead ?

How do I make my player with a Rigidbody move with isKinematic checked?

My game is a topdown zombie shooter and whenever the zombies get to the player they bunch up underneath them, to the point where the player can just walk over the zombies. I noticed that when I check isKinematic on the Rigidbody the zombies cant push the player up to go underneath him, so they just run into him(which is what I want). Despite this I am then unable to move. How can i fix this?
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerMoving1 : MonoBehaviour {
public float moveSpeed;
private Rigidbody myRigidbody;
private Vector3 moveInput;
private Vector3 moveVelocity;
private Camera mainCamera;
public GunController theGun;
void Start () {
myRigidbody = GetComponent <Rigidbody>();
mainCamera = FindObjectOfType<Camera>();
}
// Update is called once per frame
void Update () {
moveInput = new Vector3(Input.GetAxisRaw("Horizontal"), 0f, Input.GetAxisRaw("Vertical"));
moveVelocity = moveInput * moveSpeed;
Ray cameraRay = mainCamera.ScreenPointToRay(Input.mousePosition);
Plane groundPlane = new Plane(Vector3.up, Vector3.zero);
float rayLength;
if(groundPlane.Raycast(cameraRay,out rayLength))
{
Vector3 pointToLook = cameraRay.GetPoint(rayLength);
transform.LookAt(new Vector3(pointToLook.x,transform.position.y,pointToLook.z));
}
if (Input.GetMouseButtonDown(0))
theGun.isFiring = true;
if (Input.GetMouseButtonUp(0))
theGun.isFiring = false;
}
void FixedUpdate(){
myRigidbody.velocity = moveVelocity;
}
}
With isKinematic == true You can't change object position through rigidbody, You can only change transform.position.
I think it could be better, if You set isKinematic to false and add stopping distance to enemies, so they can't get too close to player.
Being that your player can no longer be effected by the physics engine, you'd have to manipulate the object's transform manually. Your script isn't ideally setup for it currently, but if I was to hack it into it and try to make it work it would look something like this:
(you can change it from fixedUpdate to update if you're no longer utilizing the physics engine)
void update(){
float x = Input.GetAxisRaw("Horizontal")* Time.Deltatime;
float z = Input.GetAxisRaw("Vertical") * Time.Deltatime;
transform.position = new Vector3(transform.position.x+x,0,transform.position.z+z);
Another way of doing this is to lock the position of Y for the player (assuming Y is the positive "up" direction). isKinimatic is best when you want to move the player or objects around yourself.
I would say upping the mass is better in this case, and you can keep isKinematic unchecked in this case then too. Also apply the lock for Y movement (again if it is the "up" direction from the plane)
Let me know what your solution is regardless, I've had some issues in the past as well with these types of events happening

Categories

Resources