I was creating a flappy bird game in Unity and while I was trying to add touch inputs it gave me this error
InvalidOperationException: You are trying to read Input using the
UnityEngine.Input class, but you have switched active Input handling
to Input System package in Player Settings.
I think it's because I downloaded the new Input system from the package manager, but i removed it
playerScript Code:
using UnityEngine;
public class playerScript : MonoBehaviour
{
Rigidbody2D rb;
void Start()
{
rb = GetComponent<Rigidbody2D>();
}
private void Update()
{
if (Input.GetMouseButtonDown(0) || Input.touchCount > 0)
{
rb.velocity = new Vector2(0f, 7f);
}
}
}
Solved it!
You need to go to the Player settings Build settings/Player settings/Other settings/Configuration and search for:
and set Input manager old
Try change code to this
using UnityEngine;
public class playerScript : MonoBehaviour
{
Rigidbody2D rb;
void Start()
{
rb = GetComponent<Rigidbody2D>();
}
private void Update()
{
if (Input.GetMouseButtonDown(0))
{
Jump();
}
}
public void Jump()
{
rb.velocity = new Vector2(0f , 7f);
}
}
Then add UI button and on the on click drag the gameobject this script is attacked to into it, click the script and then click 'Jump()'
You could add Giant UI button and add function jump and make it work when button is pressed. I had similar problem for visual novel game. And I added screen sized button :)
Related
I am a beginner in Unity and I am currently making a simple game. I have a problem where upon initial collision, the event that I wanted to happen does not trigger or in other words the OnCollisionEnter is not working upon initial collision.
The process of my script is when colliding which is the OnCollisionEnter the button will appear or it will be set active to true. But in the first collision it does not trigger or it is not working, I need to walk away a bit and go back in that way it only works. Sometimes I need to do it 2 or more times for the collider to trigger. I don't know if the script has problem or the collider itself but I made sure it is colliding properly when I look at the editor.
I set the object to static so it will not be pushed when walking and colliding towards it. I wonder if that has to do with this problem because even disabled it is the same. But can anyone give suggestions on how not to make the objects move or be pushed away upon collision?
Here is the script for my collision:
using UnityEngine;
using UnityEngine.UI;
public class InteractNPC : MonoBehaviour
{
//public Button UI;
[SerializeField] GameObject uiUse, nameBtn;
private Transform head;
private Vector3 offset = new Vector3(0, 1.0f, 0);
// Start is called before the first frame update
void Start()
{
//uiUse = Instantiate(UI, FindObjectOfType<Canvas>().transform).GetComponent<Button>();
uiUse.gameObject.SetActive(true);
head = transform.GetChild(0);
uiUse.transform.position = Camera.main.WorldToScreenPoint(head.position + offset);
}
// Update is called once per frame
void Update()
{
uiUse.transform.position = Camera.main.WorldToScreenPoint(head.position + offset);
nameBtn.transform.position = Camera.main.WorldToScreenPoint(head.position + offset);
}
private void OnCollisionEnter(Collision collisionInfo)
{
//Debug.Log("wews2");
if(collisionInfo.collider.name == "Player")
{
nameBtn.gameObject.SetActive(true);
}
}
private void OnCollisionExit(Collision collisionInfo)
{
if(collisionInfo.collider.name == "Player")
{
nameBtn.gameObject.SetActive(false);
}
}
}
Here is another script with collision and has the same problem:
using UnityEngine;
using UnityEngine.UI;
public class InteractButtonPosition : MonoBehaviour
{
//public Button UI;
[SerializeField] GameObject uiUse;
private Vector3 offset = new Vector3(0, 0.5f, 0);
// Start is called before the first frame update
void Start()
{
//uiUse = Instantiate(UI, FindObjectOfType<Canvas>().transform).GetComponent<Button>();
//uiUse = GameObject.FindGameObjectWithTag("ViewButton");
}
// Update is called once per frame
void Update()
{
uiUse.transform.position = Camera.main.WorldToScreenPoint(this.transform.position + offset);
}
private void OnCollisionEnter(Collision collisionInfo)
{
if(collisionInfo.collider.name == "Player")
{
Debug.Log("wews");
uiUse.gameObject.SetActive(true);
}
}
private void OnCollisionExit(Collision collisionInfo)
{
if(collisionInfo.collider.name == "Player")
{
//Destroy(uiUse.gameObject);
uiUse.gameObject.SetActive(false);
}
}
}
Try changing Colision detection from Descrete to Continuous
collission detection
I solved this issue by using OntriggerEnter instead of OnCollisionEnter. In the editor, for the NPC I put a Collider on each part of the body and check the IsTrigger in the parent Object so it will still collide with my character even if the IsTrigger is enabled that will make the character go through the object. I just enlarged the scale of the collider with IsTrigger enabled so the collision will be detected immediately.
I'm developing a 2D mobile game where the player should tap on the screen to go up. I just added a pause button recently and I've noticed that when I click the button it counts as a tap on the screen, so the player goes up. Basically, in the same exact moment that I press the pause button, the player jumps and then the game freezes while he is in mid-air. Is there a way I could make so the button wouldn't count as a tap?
Here's the part of the player script that makes him move:
if (Input.GetMouseButtonDown (0) && isDead == false && isKnifeDead == false && UiStartScript.uiInstance.firstClickUi == true) {
rb.velocity = Vector2.up * velocity;
}
Heres's the part of the UI script for the pause button:
public void PauseGame()
{
Time.timeScale = 0;
}
My EventSystem:
EventSystem
My Button:
Button
An easy with no code required is to remove the code about detecting tap on screen and instead place a button that covers the whole screen (invisible button).
That button event would trigger the screen movement.
You can add extra buttons on top and Unity will automatically discard the tap from any other button below.
This way you can start adding UI all over without checking in code which should be considered.
In U. I script add
public GameObject PlayerConrtollerScript;
In your U.I Script, under the class Pausgame()
Add this code.
GameObject.PlayerControllerScript.SetActive = false;
When unpaused you need to add to your script that has the
Time. timeScale =1;
Add this code.
GameObject.PlayerControllerScript.SetActive = true;
After you have added the code mentioned above. Don't forget to add the player game object from your hierarchy into the Inspector with the U. I script, the space will be available to add a game object when you scroll down to your U. I script.
That will stop your player from moving around during pause.
This is the approach that I been done. I create a cople of tricks using Event System and Canvas for take advantage of the Mouse Input, you don't need the use of Updates functions for do the basic gameplay.
Here's my example project: TapAndJump on Github
Check the GameObjects called "Click Panel" and "Pause Button" and
respective linked methods.
JumpWithTap.cs
using UnityEngine;
public class JumpWithTap : MonoBehaviour
{
[SerializeField] private UIHandler uiHandler;
[SerializeField] private float jumpPower = 5f;
private Rigidbody2D rb2D;
private int counter;
#region Class Logic
public void Jump()
{
rb2D.velocity = Vector2.up * jumpPower;
uiHandler.SetNumberToCounter(++counter);
}
#endregion
#region MonoBehaviour API
private void Awake()
{
rb2D = GetComponent<Rigidbody2D>();
}
#endregion
}
UIHandler.cs
using UnityEngine;
using UnityEngine.UI;
public class UIHandler : MonoBehaviour
{
[SerializeField] private Text counterText;
[SerializeField] private Text pauseText;
[SerializeField] private Image clickPanel;
private bool isPaused = false;
public bool IsPaused
{
get { return isPaused; }
set
{
pauseText.gameObject.SetActive(value);
isPaused = value;
}
}
#region Class Logic
public void SetNumberToCounter(int number) => counterText.text = number.ToString();
public void DisableClickPanel() => clickPanel.raycastTarget = !clickPanel.raycastTarget;
public void PauseGame()
{
IsPaused = !IsPaused;
DisableClickPanel();
// Time.timeScale = IsPaused == true ? 0 : 1; // If you want keep the Physics (ball fall) don't stop the time.
}
#endregion
}
I guided by your code example and so on; be free that modify and request any issue.
I have problem with my code, I´ve started learn C#, so I tried code some game(something like Geometry Dash). I want that move and on click jump. I wrote "move code" and "onclick jump code" but isn´t working.
I´m writing in Microsoft Visual Studio in C# and design in Unity 2018.3.5f1.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Plaxercontrol2 : MonoBehaviour
{
public Rigidbody2D rb;
public Transform groundCheck;
public Transform startPosition;
public float groundCheckRadius;
public LayerMask whatIsGround;
private bool onGround;
// Start is called before the first frame update
void Start()
{
rb = GetComponent<Rigidbody2D>();
}
// Update is called once per frame
void Update()
{
rb.velocity = new Vector2(3, rb.velocity.y);
onGround = Physics2D.OverlapCircle(groundCheck.position,
groundCheckRadius, whatIsGround);
if (Input.GetMouseButtonDown(0) && onGround)
{
rb.velocity = new Vector2(5, rb.velocity.x);
}
}
}
Now, it´s only moving
and picture of Unity
Instead of changing yourself the velocity, I'm pretty sure you should use rb.AddForce() or something similar. That is how you're supposed to move rigid bodies.
You could do something like:
rb.AddForce(Vector2.up * whatEverValue, ForceMode2D.Impulse)
I'm working on a 2D UI application with Unity and i have a problem.
I was working on the script to instantiate my popup window (i made a prefab). And i succeed but later Unity crashed and i had to redo my scene (forgot to ctrl+s)
Since this crash, my popup isn't instantiate as a child of my canvas and i've got this message:
"Setting the parent of a transform which resides in a prefab is disabled to prevent data corruption"
Here is my script :
using UnityEngine;
using System.Collections;
public class Popup : MonoBehaviour
{
public RectTransform popupPrefab;
private Animator anim;
// Use this for initialization
void Start()
{
//get the animator component
anim = popupPrefab.GetComponent<Animator>();
//disable it on start to stop it from playing the default animation
anim.enabled = false;
}
public void CreatePopup()
{
// Copie du prefab
RectTransform newPopup = Instantiate(popupPrefab, popupPrefab.transform.position, popupPrefab.transform.rotation) as RectTransform;
newPopup.transform.SetParent(transform, false);
//anim = newPopup.GetComponent<Animator>();
//anim.enabled = true;
//anim.Play("Popup");
}
public void ClosePopup()
{
anim.enabled = true;
anim.Play("ClosePopup");
}
}
I don't understand why i have this error since it was working fine before crash...
if you have any idea
Thanks
I solved the problem by re-doing my project from the beginning...
This code is for an elevator-type platform, where once the player stands on it, it 'takes' the player up by adding force onto it.
The thing is, while the force is created, the rigidbody (the player) does not move when the elevator moves. The code was written in C#, using Unity 5. In the code, the player is assigned the public 'rb', and contains a rigidbody.
The animation is a simple animation clip that moves the elevator up. Any ideas? Thank you for your time and answers in advance.
The elevator is Kinematic, the Player is not.
using UnityEngine;
using System.Collections;
/*This script activates when the player steps on the elevator, as it takes them up a floor.*/
public class ElevatorMovementScript : MonoBehaviour
{
private bool elevatorUp = false;
public Animation anim;
public int elevatorDelay = 5;
public int force = 800;
public Rigidbody rb;
// Use this for initialization
void Start ()
{
anim = GetComponent<Animation>();
}
// Update is called once per frame
void Update ()
{
}
/*Checks if the player has stepped onto the elevator. If the player has, it waits five seconds, and then pushes the player up.*/
void OnTriggerStay(Collider other)
{
if (other.gameObject.tag == "Player" && !elevatorUp)
{
Invoke("AnimationPlay",elevatorDelay);
elevatorUp = true;
}
}
/*Plays the animation of the player going up. Used for the 'Invoke' method.*/
void AnimationPlay()
{
rb.AddForce(transform.up * force);
Debug.Log (transform.up * force);
anim.Play ("Up");
}
}
It looks like this script is on your elevator's game object, in which case this line:
rb.AddForce(transform.up * force);
Will try to apply a force to the elevator, not the player. You've got to keep track of the player's rigidbody or somehow get it on demand in AnimationPlay.
You said that
the player is assigned the public 'rb'
But rb = GetComponent<Rigidbody>(); will ignore this and use the rigidbody attached to the gameobject that ElevatorMovementScript is attached to.