I have a button that I want to slide out from Y position 295 to 205 when the mouse hovers/touches the button, than slides back if the mouse no longer touches the button.
This is my code, the script is on the button I want to move, I tried using RaycastHit2Ds to detect mouse position.
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;
public class SlideButton : MonoBehaviour
{
public Button button;
float slideDownY = 205f;
float slideUpY = 295f;
public float slideSpeed = 5f;
public RectTransform rectTransform;
private void Start()
{
button.onClick.AddListener(OnButtonClick);
}
// Update is called once per frame
void Update()
{
RaycastHit2D hit = Physics2D.Raycast(Camera.main.ScreenToWorldPoint(Input.mousePosition), Vector2.zero);
if(hit.collider != null)
{
Debug.Log("success");
rectTransform.anchoredPosition = Vector2.Lerp(rectTransform.anchoredPosition, new Vector2(rectTransform.anchoredPosition.x, slideDownY), slideSpeed * Time.deltaTime);
}
else
{
rectTransform.anchoredPosition = Vector2.Lerp(rectTransform.anchoredPosition, new Vector2(rectTransform.anchoredPosition.x, slideUpY), slideSpeed * Time.deltaTime);
}
}
void OnButtonClick()
{
// add after slider works
}
}
I have also tried OnMouseEnter/OnMouseExit and OnPointerEnter/OnPointerExit but none have worked either. I haven't found anything that has solved this problem, other answers are all in different languages or not specific enough to help.
Related
I'm trying to get an object to always be "in front" of the player, from a top down perspective. Here's screenshots demonstrating what I'm trying to do.
So as you can see, when the blue capsule (player) picks up the green capsule (item), the item correctly hovers in front of the player (indicated by the z-axis blue arrow), but when the player turns in any other direction, the item doesn't follow, and instead stays in exactly the same position relative to the player.
My player controller script looks as follows:
using UnityEngine;
public class PlayerController : MonoBehaviour {
public float movementSpeed = 10;
private Rigidbody body;
private Vector2 movement;
void Start() {
body = GetComponent<Rigidbody>();
}
void Update() {
movement.x = Input.GetAxis("Horizontal");
movement.y = Input.GetAxis("Vertical");
}
void FixedUpdate() {
body.velocity = new Vector3(movement.x * movementSpeed * Time.deltaTime, 0, movement.y * movementSpeed * Time.deltaTime);
// this is what updates the direction of the blue arrow in the direction of player movement
if(movement.x != 0 || movement.y != 0) {
body.rotation = Quaternion.LookRotation(body.velocity);
}
}
}
And here's my pickup script (where the item's position is supposed to be updated):
using UnityEngine;
public class Pickup : MonoBehaviour {
private GameObject item;
public float carryDistance = 1;
void OnCollisionEnter(Collision collision) {
if(collision.gameObject.CompareTag("Item")) {
item = collision.gameObject;
}
}
void Update() {
if(item) {
item.transform.position = transform.position + new Vector3(0, 0, carryDistance);
}
}
}
So to reiterate my question: How can I update the item's position such that it's always hovering next to the player on the side of the blue arrow?
You can achieve this by using players transform.forward
item.transform.position = transform.position + (transform.forward * carryDistance)
+ (Vector3.up * carryHeight);
Alternatively you can just add empty child gameobject to the player, position it in front of the player and use its transform position and rotation to position the picked up object.
public class Pickup : MonoBehaviour {
public Transform pickupPositionTransform;
private GameObject item;
public float carryDistance = 1;
void OnCollisionEnter(Collision collision) {
if(collision.gameObject.CompareTag("Item")) {
item = collision.gameObject;
}
}
void Update() {
if(item) {
item.transform.position = pickupPositionTransform.position;
item.transform.rotation = pickupPositionTransform.rotation;
}
}
}
I am calling JUMP function from a UI Button but unable to jump using Character Collider provided by Unity. Can someone please help me where am i going wrong?
PlayerMovement Script:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
public class PlayerControllerCC : MonoBehaviour
{
public FixedJoystick moveJoystick;
CharacterController _charController;
private Vector3 v_movement;
private Animator _animator;
public float moveSpeed = 0.1f;
public float gravity = 0.5f;
public float jumpForce = 0.5F;
private float originalstepOffset;
private float InputX;
private float InputZ;
// Start is called before the first frame update
void Start()
{
moveSpeed = 0.1f;
gravity = 0.5f;
jumpForce = 0.5F;
_charController = GetComponent<CharacterController>();
originalstepOffset = _charController.stepOffset;
_animator = GetComponent<Animator>();
}
// Update is called once per frame
void Update()
{
InputX = moveJoystick.Horizontal;
InputZ = moveJoystick.Vertical;
isWalking();
}
private void FixedUpdate()
{
playerMovement();
}
void playerMovement()
{
//Check Gravity
if (_charController.isGrounded)
{
_charController.stepOffset = originalstepOffset;
v_movement.y = -0.5f;
}
else
{
_charController.stepOffset = 0;
v_movement.y -= gravity * Time.deltaTime;
}
//player movement
v_movement = new Vector3(InputX * moveSpeed, v_movement.y, InputZ * moveSpeed);
float magnitute = Mathf.Clamp01(v_movement.magnitude);
v_movement.Normalize();
_charController.Move(v_movement * magnitute);
Vector3 lookDir = new Vector3(v_movement.x, 0, v_movement.z);
//Set rotation facing after player movement
if ((lookDir.x != 0) && (lookDir.z != 0))
{
transform.rotation = Quaternion.LookRotation(lookDir);
}
}
void isWalking()
{
if (InputX == 0 && InputZ == 0)
{
_animator.SetBool("isWalking", false);
}
else
{
_animator.SetBool("isWalking", true);
}
}
public void Attack()
{
_animator.SetTrigger("isAttacking");
}
public void Jump()
{
if (_charController.isGrounded)
{
v_movement.y = jumpForce * Time.deltaTime;
}
}
}
When button is clicked in UI it called the JUMP function. I am not using keyboard but FixedJoyStick hence using button to jump.
My Game looks like this and the UI. The up arrow key is the jump button.
The Game button Up Arrow Jump
Calling Jump Function in Button
Your problem lays on the OnClick() function of the button, it is interacting with the script but the script itself is not attached to any character in this case. What you did works when the script works by itself no matter where is attached (e.g. when you call all the objects with a tag).
What you need to do is to link the object which has the script to the OnClick() in the editor, then select from the dropdown menu the script component and then call the function you want.
Like This.
Image link since I'm new
Notice how what is linked are the Game Objects and then the script is selected.
I am creating a build in Unity 2019.4.12f1 and need to drag an object with Right Mouse button.
My C# skills are very limited, so far but i try.
This scripts is my attempt to be able to rotate a gameobject by holding right mouse button down and dragging ingame.
But it is wrong.
Can anyone help me correct it?ยด
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class mouseM : MonoBehaviour
{
bool dragging = false;
void Start()
{
if (Input.GetMouseButtonDown(1))
{
dragging = true;
}
}
void Update()
{
if (Input.GetMouseButtonDown(1))
{
yourOnMouseDownFunction();
dragging = true;
}
if (Input.GetMouseButtonUp(1))
{
yourOnMouseUpFunction();
dragging = false;
}
if (dragging)
{
yourOnMouseDragFunction();
}
}
}
I understood that You need to Drag Object in 3d World so Here is my Code just create new Script and attach to Object You Want to Drag it
Your Object that You need to Drag it should has a collider
using UnityEngine;
public class DragableObject : MonoBehaviour
{
private Vector3 mOffset;
private float mZCoord;
private void OnMouseDrag()
{
transform.position = GetMouseWorldPos() + mOffset;
}
private void OnMouseDown()
{
mZCoord = Camera.main.WorldToScreenPoint(gameObject.transform.position).z;
mOffset = transform.position - GetMouseWorldPos();
}
private Vector3 GetMouseWorldPos()
{
Vector3 mosePoint = Input.mousePosition;
mosePoint.z = mZCoord;
var result = Camera.main.ScreenToWorldPoint(mosePoint);
return result;
}
}
you can try it by adding it to sphere or cube and if you use custom shape you should insure that the collider is in suitable size or has a meshcollier
Demo
EDIT
using UnityEngine;
public class DragableObject : MonoBehaviour
{
private bool isMouseDragging;
private Vector3 screenPosition;
private Vector3 offset;
private GameObject target;
GameObject ReturnClickedObject(out RaycastHit hit)
{
GameObject targetObject = null;
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
if (Physics.Raycast(ray.origin, ray.direction * 10, out hit))
{
targetObject = hit.collider.gameObject;
}
return targetObject;
}
void Update()
{
if (Input.GetMouseButtonDown(1))
{
RaycastHit hitInfo;
target = ReturnClickedObject(out hitInfo);
if (target != null)
{
isMouseDragging = true;
Debug.Log("our target position :" + target.transform.position);
//Here we Convert world position to screen position.
screenPosition = Camera.main.WorldToScreenPoint(target.transform.position);
offset = target.transform.position - Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenPosition.z));
}
}
if (Input.GetMouseButtonUp(1))
{
isMouseDragging = false;
}
if (isMouseDragging)
{
//tracking mouse position.
Vector3 currentScreenSpace = new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenPosition.z);
//convert screen position to world position with offset changes.
Vector3 currentPosition = Camera.main.ScreenToWorldPoint(currentScreenSpace) + offset;
//It will update target gameobject's current postion.
target.transform.position = currentPosition;
}
}
}
You could try the Input.GetMouseButton method, this should return a value depending on if the button is held pressed.
This one works too, if someone needs in the future.
This is for rotate though.
Sorry, i dont know why it wont let me post as code, so i post an image.
enter image description here
I've made a 3d game and I have a first person controller, control by a joystick. I want my player to shoot only when I touch a button on the screen, but now my player shoots if I touch anything on the screen. This is the script for the shoot function:
using UnityEngine;
using UnityEngine.UI;
public class Gun : MonoBehaviour
{
public float damage = 10f;
public float range = 100f;
public Camera fpsCam;
public Button button;
// Start is called before the first frame update
void Start()
{
//Calls the TaskOnClick/TaskWithParameters/ButtonClicked method when you click the Button
button.onClick.AddListener(TaskOnClick);
}
// Update is called once per frame
void Update()
{
Vector3 forward = transform.TransformDirection(Vector3.forward) * 10;
Debug.DrawRay(transform.position, forward, Color.green);
}
void Shoot()
{
RaycastHit hit;
if( Physics.Raycast(fpsCam.transform.position, fpsCam.transform.forward, out hit, range))
{
Debug.Log(hit.transform.name);
Target target = hit.transform.GetComponent<Target>();
if(target != null)
{
target.TakeDamage(damage);
}
}
}
void OnCollisionEnter(Collision collision)
{
Debug.DrawRay(collision.contacts[0].point, collision.contacts[0].normal, Color.green, 2, false);
}
void TaskOnClick()
{
Shoot();
}
}
Your Shoot() method runs whenever you press the "Fire1" button, since the only check you are doing is if (Input.GetButtonDown("Fire1")).
If you want to depend on a button to fire you need to take this part of the code out and call Shoot() whenever you click the button.
You can add the event to the button using code, as explained here
public Button m_YourFirstButton;
void Start()
{
//Calls the TaskOnClick/TaskWithParameters/ButtonClicked method when you click the Button
m_YourFirstButton.onClick.AddListener(TaskOnClick);
}
void TaskOnClick()
{
//Output this to console when Button1 or Button3 is clicked
Debug.Log("You have clicked the button!");
}
or you could call it from the inspector by referencing your Gun monobehaviour.
I want to set the gravity modifier of an object to 2 when the mouse is clicked down, then go back down to .3 when it is released.
I think its just a simple stupid error.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Move : MonoBehaviour
{
public Rigidbody2D rb;
public float idle = .3f;
void Start()
{
rb = GetComponent<Rigidbody2D>();
}
void Update()
{
if (Input.GetMouseButtonDown(0))
{
rb.gravityScale = 2f;
}
else
{
rb.gravityScale = .3f;
}
}
}
GetMouseButtonDown will only return true on the exact frame that the mouse button was pressed down. This means that if you hold it down, your else block will run every frame other than the one it was pressed. You can instead check for the mouse being released with GetMouseButtonUp and change it back when that happens:
if (Input.GetMouseButtonDown(0))
{
rb.gravityScale = 2f;
}
if (Input.GetMouseButtonUp(0))
{
rb.gravityScale = .3f;
}
or you can be more specific with your first if and then use an empty else:
if (Input.GetMouseButtonDown(0) || Input.GetMouseButton(0))
{
rb.gravityScale = 2f;
}
else
{
rb.gravityScale = .3f;
}
GetMouseButton will return true during any frame it's held.