Consider this working script, that handles a FPS camera movement:
using UnityEngine;
public class CameraHandler : MonoBehaviour {
public Transform target;
float dragSpeed = 10f;
float lookAtSensitivity = 200f;
float xRot;
Transform parentGO;
private void Start() {
parentGO = transform.parent;
}
void goToPivot(Transform pivot) {
parentGO.position = Vector3.Lerp(transform.position, pivot.position, 0.05f);
transform.rotation = Quaternion.Lerp(transform.rotation, pivot.rotation, 0.05f);
}
void resetCamRot() {
xRot = 0;
float yRot = transform.localEulerAngles.y;
parentGO.transform.eulerAngles += new Vector3(0, yRot, 0);
transform.localEulerAngles -= new Vector3(0, yRot, 0);
}
void LateUpdate() {
if (Input.GetKey(KeyCode.Mouse1)) {
float touchX = Input.GetAxis("Mouse X") * lookAtSensitivity * Time.deltaTime;
float touchY = Input.GetAxis("Mouse Y") * lookAtSensitivity * Time.deltaTime;
xRot -= touchY;
xRot = Mathf.Clamp(xRot, -90f, 90f);
transform.localRotation = Quaternion.Euler(xRot, 0f, 0f);
parentGO.transform.Rotate(Vector3.up * touchX);
}
if (Input.GetKey(KeyCode.Space)) {
goToPivot(target);
}
if (Input.GetKeyUp(KeyCode.Space)) {
resetCamRot();
}
}
}
Check how the rotations take place in different gameobjects in their respective axis, so that each of rotations are kept independent and everything works.
transform.localRotation = Quaternion.Euler(xRot, 0f, 0f); //camera GO only rotates in local x
parentGO.transform.Rotate(Vector3.up * touchX); //parent GO only rotates in global y
Problem comes when I need to "force" the camera look a certain direction without the inputs, to the FPS movement rules break, and for example the camera gameobject rotates also in the Y xis. That is why I need to call the resetCamRot() method, and traspass the local rotation from the camera object to the parent so that the situation meets the the FPS movement requirements (no local Y axis rotation).
Without calling the resetCamRot() method, when the FPS movement starts on right mouse button click, the camera abruptly changes to the direction it was facing before "forcing" it with goToPivot that sets the position and the rotation.(Just commentinf the resetCamRot method out)
Although resetCamRot() does the work it feels a bit hacky, so is there another way to set the camera to a forced rotation maintaining the local rotation of the child object (where the camera is) to 0?
I thought of decomposing the next step rotation given by Quaternion.Lerp(transform.rotation, pivot.rotation, 0.05f); in the goToPivot() method in each of their respective axis and gameObjects as its done when the rotation is set from the input, to have a clean local Y rot in he camera gameobject each step. Seems to be the over-complicated thing in this case, but was not able to figure that out.
I you wish to try the script out for the challenge just need to add a parent gameobject to the camera and the attach the target in the editor.
This will make the camera look in the direction, the parent transform look in the direction, only flattened, and finally update the internal state (xRot) in accordance with the difference between the two:
void LookTowards(Vector3 direction) {
Vector3 flattened = direction;
flattened.y = 0f;
parentGo.rotation = Quaternion.LookRotation(flattened);
transform.rotation = Quaternion.LookRotation(direction);
xRot = Vector3.SignedAngle(flattened, direction, parentGo.right);
}
Related
I have a unity scene with a character holding a weapon. The weapon is a child of the camera and so moves with the camera allowing the player to aim the weapon. My issue is that the 3d model of the character has hands which i wish to be holding on to the weapon. Initially, to get past this issue, I used IK's to place the hands on the gun, this worked but didn't allow me to aim the gun as it would be fixed to the hands. How would I go about keeping the hands attached to the weapon whilst still being able to aim?
The player look script is attached for refrence:
public float sensitivityX = 5.0f;
public float sensitivityY = 5.0f;
public int Limits = 80;
public Transform playerBody;
float xRotation = 0f;
void Start()
{
Cursor.lockState = CursorLockMode.Locked;
}
void Update()
{
float mouseX = Input.GetAxis("Mouse X") * sensitivityX * Time.deltaTime;
float mouseY = Input.GetAxis("Mouse Y") * sensitivityY * Time.deltaTime;
xRotation -= mouseY;
xRotation = Mathf.Clamp(xRotation, (Limits * -1), Limits);
transform.localRotation = Quaternion.Euler(xRotation, 0f, 0f);
playerBody.Rotate(Vector3.up * mouseX);
}
If anymore information is needed please let me know, thank you.
FIX:
Parent gun to hand, use animation rigging IK's to follow a target (I used multi aim constraints), do this for both the hand and the spine. Set the source object as a sphere, either disable it from being visible in the camera or just make it very small, then make it a child of the camera, place it at X=0, Y=0 and Z=>0.
I'm trying to Rotate my GameObject using the script around Y axis:
rotateDir = Input.GetAxis("Horizontal");
rb.AddRelativeTorque(Vector3.up * rotateDir * rotateForce);
But my GameObject starting tilt (last picture):
I have changed colliders, checked my code (I can't see any errors)< but still it doesn't work properly. Could anybody help me? thanks
private void Update()
{
RotateTowardsYDirection();
}
public void RotateTowardsYDirection()
{
////transform object to rotate with some rotation factor value
objectToRotate.Rotate(0, Input.GetAxis("Horizontal") * yRotationFactor * Time.deltaTime, 0);
}
There are many ways to rotate gameObject in unity. But the best way to rotate is using EularAngles
// Transform.eulerAngles represents rotation in world space
void Update() {
currentEulerAngles += new Vector3(x, y, z) * Time.deltaTime * rotationSpeed;
//apply the change to the gameObject
transform.eulerAngles = currentEulerAngles;
}
I need to restrict my Players hand inside a radius around the character.
The game is 2D and the hand movement is basically exactly the same as: Madness Interactive (https://www.newgrounds.com/portal/view/118826)
[SerializeField] private float speed = 2f;
[SerializeField] private GameObject radiusCenter;
[SerializeField] private float radius = 0.5f;
void Start()
{
Cursor.visible = false;
}
void Update()
{
Vector3 playerPos = radiusCenter.transform.position;
Vector3 playerToHand = this.transform.position - playerPos;
var moveDirection = new Vector3(Input.GetAxis("Mouse X"), Input.GetAxis("Mouse Y"), 0);
float DistanceToRadius = Vector3.Distance(playerPos, playerToHand);
transform.position += moveDirection * speed * Time.deltaTime;
float angle = Mathf.Atan2(playerToHand.y, playerToHand.x) * Mathf.Rad2Deg;
transform.rotation = Quaternion.AngleAxis(angle, Vector3.forward);
}
I cant figure out the way to keep my players hand inside a set radius around my player, see pictures below for further explanation:
I thought maybe I could get a float value from playerPos and playerToHand and create a IF-statement that restricts the hand from going outside the set radius float, but I didnt get it to work...
EDIT 1: The hand is a child of my player. I use a gameObject in the center of my player as radiusCenter which my hand rotates around.
One very simple way to check if the hand is too far away is to use this line of code:
<movement code here>
if (Vector3.distance(playerPos, transform.position) > radius)
{
transform.localPosition = transform.localPosition.normalized * radius;
{
This will make it so if the hand will be outside the circle after the move, it will just put the hand on the circle.
I am working on controls for a bipedal tank, that has a boost/dash feature.
When the boost/dash mode is activated by holding a button the tank changes from a traditional WASD strafing movement to something like a jet fighter but on ground.
Now when the player tries to turn while boosting the camera needs to tilt with the turning direction to make it feel smoother.
Here is a video clip showing my problem
This is the script added to the main camera
public class PlayerCameraTilt : MonoBehaviour
{
private Camera viewCam;
private CharacterController characterController;
public float tiltAmount = 10f;
private void Start()
{
viewCam = GetComponent<Camera>();
characterController = GetComponentInParent<CharacterController>();
}
private void Update()
{
if (characterController.GetComponent<PlayerController>().movementState == MovementModes.boost)
{
float inputValue = Input.GetAxis("MoveHorizontal") * tiltAmount;
Vector3 euler = transform.localEulerAngles;
euler.z = Mathf.Lerp(euler.z, -inputValue, 5f * Time.deltaTime);
transform.localEulerAngles = euler;
}
else
{
Vector3 euler = transform.localEulerAngles;
euler.z = Mathf.Lerp(euler.z, 0f, 5f * Time.deltaTime);
transform.localEulerAngles = euler;
}
}
}
It kind of works, BUT only in one rotation direction, namely the positive one. If i turn the other way the angle becomes negative and does a whole 360 degree rotation until it ends up at 0 degrees.
I tried around with the built in Quaternion methods like Quaternion.Rotate() or Quaternion.AngleAxis()
but they didn't work because Quaternion.Rotate() doesn't tilt the Camera but completely rotates it. Quaternion.AngleAxis() works with the whole tilt angle limit but also does something to the other axis which i don't want to modify.
Is there a way to prevent the camera from doing a complete 360° rotation when the axis input becomes negative and just tilt in a slight angle?
Wraparound issues aside, the z component is "applied" first among the euler components, so I wouldn't modify it directly like that in this application.
Instead, I would convert the input to an angle to lean, rotate the direction of the local up before localRotation is applied (Quaternion.Inverse(transform.localRotation) * transform.up) by that angle, then use Quaternion.LookRotation to find a rotation with the current forward and that up, then use Quaternion.Slerp to slerp toward that rotation:
private void Update()
{
if (characterController.GetComponent<PlayerController>().movementState == MovementModes.boost)
{
float inputValue = Input.GetAxis("MoveHorizontal") * tiltAmount;
Vector3 upOfParent = Quaternion.Inverse(transform.localRotation) * transform.up;
Vector3 upDir = Quaternion.AngleAxis(-inputValue, transform.forward) * upOfParent;
Quaternion goalRot = Quaternion.LookRotation(transform.forward, upDir);
transform.rotation = Quaternion.Slerp(transform.rotation, goalRot, 5f * Time.deltaTime);
}
else
{
float inputValue = Input.GetAxis("MoveHorizontal") * tiltAmount;
Vector3 upOfParent = Quaternion.Inverse(transform.localRotation) * transform.up;
Quaternion goalRot = Quaternion.LookRotation(transform.forward, upOfParent);
transform.rotation = Quaternion.Slerp(transform.rotation, goalRot, 5f * Time.deltaTime);
}
}
Just keep in mind that using t = 5f * Time.deltaTime for lerp/slerp operations does not always guarantee that the output will ever equal the to parameter.
I am trying to make a simple game where I am shooting a projectile when the user touches the screen, I first spawn 8 projectiles (sprites) and when the user touches the screen I would like the top projectile to fly in the touch direction. I was able to do this; However, every time I shoot, the projectile goes in the wrong direction, here is an image which will illustrate the issue.
Obviously the image is still here but the object will continue flying until it goes out of the screen and then gets destroyed.
Here is the code snippet that handles this
GameplayController.cs
if (Input.GetMouseButtonDown(0))
{
Vector3 position = new Vector3(Input.mousePosition.x, Input.mousePosition.y, 0);
position = Camera.main.ScreenToWorldPoint(position);
GameObject target;
target = new GameObject();
target.transform.position = position;
Arrow comp = currentArrows[0].GetComponent<Arrow>();
comp.setTarget(target.transform);
comp.GetComponent<Arrow>().arrowSpeed = 12;
comp.GetComponent<Arrow>().shoot = true;
currentArrows.RemoveAt(0);
Destroy(target);
}
I know I am getting the mouse input here and not the phone touch and that's fine for me, later I will convert it to the touch input.
Arrow.cs
public bool shoot = false;
public float arrowSpeed = 0.0f;
public Vector3 myDir;
public float speed = 30.0f;
private Transform target;
// Use this for initialization
void Start () {
}
// Update is called once per frame
void Update () {
if(shoot)
{
transform.position += transform.right * arrowSpeed * Time.deltaTime;
}
}
public void setTarget(Transform targetTransform)
{
this.target = targetTransform;
Vector3 vectorToTarget = target.position - transform.position;
float angle = Mathf.Atan2(vectorToTarget.y, vectorToTarget.x) * Mathf.Rad2Deg;
Quaternion q = Quaternion.AngleAxis(angle, Vector3.forward);
transform.rotation = Quaternion.Slerp(transform.rotation, q, Time.deltaTime * speed);
}
private void OnBecameInvisible()
{
print("Disappeared");
Destroy(gameObject);
Gameplay.instance.isShooting = false;
}
Vector3 position = new Vector3(Input.mousePosition.x, Input.mousePosition.y, 0);
I think that your problem is that you're getting the screen coordinates by click, not the world coordinates, which is actually two different things. In order to direct your projectile correctly you need to convert your screen coordinates to world like it's done here.
The next thing is how you move the projectile:
transform.position += transform.right * arrowSpeed * Time.deltaTime;
You're moving the projectile to the right and then rotating it somehow. Maybe you should try to move it with Vector3.Lerp, which will be easier and rotate it with Transform.LookAt.