so imagine a replica of angry birds, I’ve made a hook (a circle that I’ve made transparent), and I’ve made the movement I want, but now, I was to let’s say, attach my SpringJoint2D to a new hook when I trigger it (OnTriggerEnter), so like I’m on an old hook or anchor point, and I release my ball (like a bird flying) and I want to go through another hook/anchor point, and get the ability to shoot again
heres my code:
using System.Collections;
using UnityEngine;
public class Player : MonoBehaviour
{
public Rigidbody2D rb;
bool isPressed = false;
public float releaseTime = .10f;
void Update()
{
if(isPressed)
{
rb.position = Camera.main.ScreenToWorldPoint(Input.mousePosition);
}
}
void OnMouseDown()
{
isPressed = true;
rb.isKinematic = true;
}
void OnMouseUp()
{
isPressed = false;
rb.isKinematic = false;
StartCoroutine(Release());
}
IEnumerator Release()
{
yield return new WaitForSeconds(releaseTime);
GetComponent<SpringJoint2D>().enabled = false;
}
void OnTriggerEnter(Collider other)
{
if(other.gameObject.CompareTag("Hook"))
{
GetComponent<SpringJoint2D>().enabled = true;
GetComponent<SpringJoint2D>().ConnectedRigidBody = other.GetComponent<Rigidbody2D>();
}
}
}
so what i want is
Related
I'm sorry for any messy code, I'm relatively new to this. I made a working teleport in Unity but whenever I teleport from one of the teleports to the other, I wanna make it so there's a 5 second cooldown before you can use the teleporter again. So I used IEnumerator, added 5 seconds before "justTeleported" became false again, but when I teleported, I instantly got teleported back, and had to wait 5 seconds before I could try again. So my though was maybe I'm touching the trigger too quickly, before it can become false, that's why I added the two seconds. But now, whenever I get on the teleporter, it goes from true to false to true a couple times, and then I eventually get teleported back to where I came from. If anyone could help, I would be very thankful. Thank you.
{
public Transform Destination;
bool justTeleported;
public GameObject Player = GameObject.FindGameObjectWithTag("Player");
// Start is called before the first frame update
void Start()
{
justTeleported = false;
}
private void Update()
{
print(justTeleported)
}
private void OnTriggerEnter2D(Collider2D coll)
{
if (coll.gameObject.tag == "Player" && justTeleported == false)
{
StartCoroutine("Cooldown");
}
}
IEnumerator Cooldown()
{
justTeleported = true;
yield return new WaitForSeconds(2f);
Player.transform.position = Destination.transform.position;
yield return new WaitForSecondsRealtime(5f);
justTeleported = false;
}
Because each of the teleports has its own bool justTeleported, setting the first true doesn't automatically set the other true, so you need some way to tell the Destination teleport script to start it's own cooldown coroutine. Here's my test script, it works for me.
using System.Collections;
using UnityEngine;
public class Teleport : MonoBehaviour
{
public Teleport Destination = null;
public float CooldownTime = 5f;
private bool justTeleported = false;
public void StartCoolDown()
{
StartCoroutine(Cooldown());
}
private void OnTriggerEnter2D(Collider2D coll)
{
if (coll.gameObject.CompareTag("Player") && !justTeleported) //CompareTag("tag") is better than .tag == "tag"
{
TeleportPlayer(coll.gameObject);
}
}
private void TeleportPlayer(GameObject player)
{
if (Destination) //if Destination is not null
{
StartCoolDown();
Destination.StartCoolDown(); //tell Destination to cooldown
player.transform.position = Destination.transform.position;
}
}
private IEnumerator Cooldown()
{
justTeleported = true;
yield return new WaitForSeconds(CooldownTime);
justTeleported = false;
}
}
Teleport1 (Destination: Teleport2)
Teleport2 (Destination: Teleport1)
I'm trying to keep the player skin, even when reloading the scene, or moving on to a new one. The player object changes every scene.
The player skin is chosen in a pause menu, with three buttons. Each one of those buttons calls a function in the script below. I'm trying to call one of these functions, based on what value the PlayerPrefs int holds, and the function does get called; But throws the error MissingReferenceException: The object of type 'GameObject' has been destroyed but you are still trying to access it
Below is what i have already tried, but this throws an error on scene reload (death)
i don't know what i'm doing wrong here.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
public class Pausemenu : MonoBehaviour
{
public static bool gameIsPaused = false;
public GameObject pauseMenuUI;
public Material BelgianMat;
public Material Ball2;
public Material Rainbow;
public GameObject Player;
// Update is called once per frame
void Update()
{
if (Input.GetKeyDown(KeyCode.Escape)) {
if (gameIsPaused) {
Resume();
} else {
Pause();
}
}
}
public void Resume(){
pauseMenuUI.SetActive(false);
Time.timeScale = 1f;
gameIsPaused = false;
}
void Pause() {
pauseMenuUI.SetActive(true);
Time.timeScale = 0f;
gameIsPaused = true;
}
public void LoadMenu() {
Time.timeScale = 1f;
gameIsPaused = false;
SceneManager.LoadScene("Menu");
}
public void QuitGame() {
Debug.Log("Quitting");
Application.Quit();
}
public void ApplyBelgian() {
Player.GetComponent<Renderer>().material = BelgianMat;
PlayerPrefs.SetInt("playerMat", 0);
}
public void ApplyBall2() {
Player.GetComponent<Renderer>().material = Ball2;
Debug.Log("Applied ball two");
PlayerPrefs.SetInt("playerMat", 1);
}
public void ApplyRainbow() {
Player.GetComponent<Renderer>().material = Rainbow;
PlayerPrefs.SetInt("playerMat", 2);
}
void OnEnable()
{
Debug.Log("OnEnable called");
SceneManager.sceneLoaded += OnSceneLoaded;
}
// called second
void OnSceneLoaded(Scene scene, LoadSceneMode mode)
{
Debug.Log("OnSceneLoaded: " + scene.name);
Debug.Log(mode);
if (PlayerPrefs.GetInt("playerMat") == 0) {
ApplyBelgian();
}
else if (PlayerPrefs.GetInt("playerMat") == 1) {
Debug.Log("gonna apply ball 2");
ApplyBall2();
}
else if (PlayerPrefs.GetInt("playerMat") == 2) {
ApplyRainbow();
}
}
}
I don't know why but it seems like the reference to the Player object may be broken after loading the scene. If this is the case, add a "Player" tag to your Player object and add this to the OnEnable function: Player = GameObject.FindWithTag("Player");
I am a newbie to Unity and I am trying to build a little shooter 2d game in C#. I am now stuck and confess that I am a little lost not knowing what the best approach is, but the problem is that my hero shoots at the enemies and they die but how do I get to the next level after the enemies are all dead? If I make a dead counter, what script do I put in? In the enemy script? Or do I make a new script but associate it with what? I also need the game to end if the hero fires his six bullets (already have a counter that makes the hero not shoot anymore after six shoots) and there are still enemies left ...
Does anyone give me some tips? Thanks!
Enemy script:
using System.Collections.Generic;
using UnityEngine;
public class BadguyScript : MonoBehaviour
{
public int maxHealth;
public int curHealth;
private Animator myAnimator;
private bool isDead;
[SerializeField]
private float DespawnTime = 2.5f;
[SerializeField]
private string DeathAnimHash = "isDead";
void Start()
{
myAnimator = GetComponent<Animator>();
myAnimator.enabled =true;
myAnimator.SetBool (DeathAnimHash ,isDead);
maxHealth = 1;
curHealth = maxHealth;
}
void Update()
{
if (curHealth < 1)
{
isDead = true;
myAnimator.SetBool (DeathAnimHash ,isDead);
Destroy(gameObject,DespawnTime);
}
}
void OnTriggerEnter2D(Collider2D col)
{
if (isDead)
return;
if (col.tag == "bullet")
{
curHealth -= 1;
Destroy(col.gameObject);
}
}
}
Count Bullets Script:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class GameFlow : MonoBehaviour
{
public static float remainingShots = 6;
public Transform shot1;
public Transform shot2;
public Transform shot3;
public Transform shot4;
public Transform shot5;
public Transform shot6;
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
if (remainingShots > 0)
{
shot1.GetComponent<Image> ().enabled = true;
}
else
{
shot1.GetComponent<Image> ().enabled = false;
}
if (remainingShots > 1)
{
shot2.GetComponent<Image> ().enabled = true;
}
else
{
shot2.GetComponent<Image> ().enabled = false;
}
if (remainingShots > 2)
{
shot3.GetComponent<Image> ().enabled = true;
}
else
{
shot3.GetComponent<Image> ().enabled = false;
}
if (remainingShots > 3)
{
shot4.GetComponent<Image> ().enabled = true;
}
else
{
shot4.GetComponent<Image> ().enabled = false;
}
if (remainingShots > 4)
{
shot5.GetComponent<Image> ().enabled = true;
}
else
{
shot5.GetComponent<Image> ().enabled = false;
}
if (remainingShots > 5)
{
shot6.GetComponent<Image> ().enabled = true;
}
else
{
shot6.GetComponent<Image> ().enabled = false;
}
if(Input.GetButtonDown("Fire1"))
{
remainingShots -= 1;
}
}
}
To switch to another scene after your conditions do the following:
1. Add the OtherScenes to your game by doing this:
File -> Build Settings -> Add Open Scenes
2. Do something like this in your code:
Enemy Script.cs
using UnityEngine.SceneManagement; // Contains scene management functions
public GameObject[] enemies;
void Update()
{
enemies = GameObject.FindGameObjectsWithTag("Enemy"); // Checks if enemies are available with tag "Enemy". Note that you should set this to your enemies in the inspector.
if (enemies.length == 0)
{
SceneManager.LoadScene("OtherSceneName"); // Load the scene with name "OtherSceneName"
}
}
Bullet Script.cs
using UnityEngine.SceneManagement;
void Update()
{
if (remainingShots == -1)
{
SceneManager.LoadScene("OtherSceneName");
}
}
use an empty gameobject and attach this line of code in update method .
if (enemies.length == 0)
{
SceneManager.LoadScene("OtherSceneName"); // Load the scene with name "OtherSceneName"
}
As you were using the enemy script and when all the enemies dies then there is no gameobject which hold the script.
using UnityEngine;
using UnityEngine.Networking;
public class Interactable : NetworkBehaviour {
public float radius = 2f;
bool isFocus = false;
Transform player;
bool hasInteracted = false;
public Transform interactionPoint;
public virtual void Interact()
{
// This method is meant to be overwritten
Debug.Log("Interacting with " + transform.name);
}
private void Update()
{
if (isFocus && !hasInteracted)
{
float distance = Vector3.Distance(player.position, interactionPoint.position);
if(distance <= radius)
{
Interact();
hasInteracted = true;
}
}
}
public void onFocused(Transform Player)
{
isFocus = true;
player = Player;
}
public void onDeFocused()
{
isFocus = false;
player = null;
hasInteracted = false;
}
private void OnDrawGizmosSelected()
{
Gizmos.color = Color.yellow;
Gizmos.DrawWireSphere(transform.position, radius);
}
}
This is for the interaction which is overwritten.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Networking;
public class SphereBehaviour : Interactable {
public float countdown = 1;
public float timeLeft = 5f;
public override void Interact()
{
Debug.Log("Interacting with the Sphere object");
StartCoroutine(StartCountdown());
}
public IEnumerator StartCountdown() // Countdown from 5
{
countdown = timeLeft;
while (countdown > 0)
{
yield return new WaitForSeconds(1.0f);
countdown--;
}
}
The Problem is that this isn't networked and I can't think of the logic to do it. An Interface won't work or anything. Is there any possible solution which doesn't require changing everything?
I'm just trying to turn Brackeys set of youtube tutorials to something multiplayer.
I'm assuming you're using the public "countdown" variable for some UI element.
If you want each player to see their own countdown when they themselves touch this Sphere, this should work fine.
If anyone touching the sphere should trigger a countdown for everyone, then this will have to be done differently. You'll want the host/server to track interactions between players and spheres, then trigger the countdown coroutine in the clients.
I personally don't recommend #1 in any case, as collisions/interactions should be done server-side.
I am using the Unity Engine to make a 2D game... to give you an idea of what it looks like, there is a generic space background, 4 rocks bouncing around the screen, and a tie fighter. My goal was to make the tie fighter explode (Which I did succeed in doing), destroy itself, and have a prefab take its place. I am new to c#, so I don't know much of the API. I tried using the second script to destroy the tie fighter, then instantiate a prefab... Now, whenever I run the game, it spawns enough clones to the point where Unity crashes and I do not know how to fix it. I tried googling stuff and doing a manual fix (hence the bools), but nothing seems to be working. Any help would be greatly appreciated. Also, please don't just comment; write it as an answer so that I can mark it correct if it works. Here are the scripts (I am assuming the error is in the second one, but I included both for reference):
First Script:
using UnityEngine;
using System.Collections;
public class tfScript : MonoBehaviour
{
Vector3 tfPos;
Vector3 worldPos;
float mousePosInBlocksx;
float mousePosInBlocksy;
int lives;
public Sprite tieFight; // Drag your first sprite here
public Sprite kaboom; // Drag your second sprite here
private SpriteRenderer spriteRenderer;
float makeThingsGoBoom;
// Use this for initialization
public void Start ()
{
tfPos = new Vector3 (3f, 3f, -4f);
lives = 20;
spriteRenderer = GetComponent<SpriteRenderer>(); // we are accessing the SpriteRenderer that is attached to the Gameobject
if (spriteRenderer.sprite == null) // if the sprite on spriteRenderer is null then
{
spriteRenderer.sprite = tieFight; // set the sprite to sprite1
}
}
// Update is called once per frame
public void Update ()
{
GameObject controller = GameObject.Find ("controller");
gameController gameCon = controller.GetComponent<gameController> ();
mousePosInBlocksx = ((Input.mousePosition.x / Screen.width) * 16);
mousePosInBlocksy = ((Input.mousePosition.y / Screen.width) * 12)+2;
tfPos.x = Mathf.Clamp (mousePosInBlocksx, .5f, 15.5f);
tfPos.y = Mathf.Clamp (mousePosInBlocksy, .5f, 11.5f);
this.transform.position = tfPos;
if (makeThingsGoBoom == 0)
{
gameCon.Update();
}
}
public void ChangeTheDarnSprite ()
{
if (spriteRenderer.sprite == tieFight) { // if the spriteRenderer sprite = sprite1 then change to sprite2
spriteRenderer.sprite = kaboom;
}
else
{
spriteRenderer.sprite = tieFight;
}
}
public void OnCollisionEnter2D (Collision2D collider)
{
if (collider.gameObject.name.Contains("spacerock") )
{
lives--;
print (getLives ());
}
if (collider.gameObject.name.Contains("spacerock")) // If the space bar is pushed down
{
spriteRenderer.sprite = kaboom;
makeThingsGoBoom = 0;
}
}
public void increaseLives()
{
lives++;
}
public double getLives()
{
return lives;
}
}
Second Script:
using UnityEngine;
using System.Collections;
public class gameController : MonoBehaviour
{
public GameObject tf;
public GameObject tfpf;
public bool iBlowedUp = false;
public void Start()
{
}
public void Update ()
{
boom ();
}
public void boom()
{
iBlowedUp = true;
if (iBlowedUp = true)
{
StartCoroutine (waitForIt ());
Destroy (tf);
tfpf = Instantiate (Resources.Load ("Prefabs/tfpf")) as GameObject;
iBlowedUp = false;
}
}
public IEnumerator waitForIt()
{
print ("Bob lives #2!");
yield return new WaitForSeconds (1);
print ("John is a turtle #2!");
}
}
You are calling following method in a Update function which is executed constantly.
public void boom()
{
iBlowedUp = true;
if (iBlowedUp = true)
{
StartCoroutine (waitForIt ());
Destroy (tf);
tfpf = Instantiate (Resources.Load ("Prefabs/tfpf")) as GameObject;
iBlowedUp = false;
}
}
An if iBlowedUp = true; if (iBlowedUp = true){ doesn't make sense, because the statement is true always.
It should be similar to:
public void boom()
{
if (iBlowedUp == true)
{
iBlowedUp = false;
StartCoroutine (waitForIt ());
Destroy (tf);
tfpf = Instantiate (Resources.Load ("Prefabs/tfpf")) as GameObject;
}
}
Probably you want to set iBlowedUp to true somewhere else. As I consider in a tfScript.Update() method, instead of calling Update method.
if (makeThingsGoBoom == 0)
{
gameCon.iBlowedUp = true;
//gameCon.Update();
}
if (iBlowedUp = true)
{
iBlowedUp = false;
StartCoroutine (waitForIt ());
Destroy (tf);
tfpf = Instantiate (Resources.Load ("Prefabs/tfpf")) as GameObject;
}
before instantiate make isBlowedUp false, I cant say ı understood well this "Unity crashes". there is some complexity in your code. I hope you fix them as well