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How to disable Prefabs in Unity 2D?

Im working on an 2d local multiplayer platformer Game. In the game are obstacles (Spikes), when the player collides with them the player will die. I want the Players of the game to decide if they would like to enable or disable the Spikes (the link leads to an image that will help understanding my problem)by pressing a Key. I already wrote a script for that and added it to my dontdestroyOnLoad GameManager. So all my spikes I built are the same Prefabs. My idea was to disable the main Prefab from the Project folder to disable all the spikes in every scene, until you press a Key to reactivate them again. The Problem is, that only the texture itself in the Project Panel disables and not the Spikes Prefabs in the Hierarchy, because the prefabs turn into regular gameObjects. How can I fix this?
My Script:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
//using System.Threading;
public class DisableSpikes : MonoBehaviour
{
[Header("Spikes")]
public KeyCode disableSpikes;
public float time;
public GameObject prefabSpikes;
public bool toggleSpikes = true;
[Header("Player Green")]
public KeyCode disableGreen;
public GameObject prefabGreen;
public bool toggleGreen = true;
[Header("Reset Score")]
public KeyCode resetScore;
// Start is called before the first frame update
// Update is called once per frame
void Update()
{
if (Input.GetKeyDown(disableSpikes) && toggleSpikes == true)
{
prefabSpikes.SetActive(false);
Debug.Log("Disable");
//Thread.Sleep(1000);
Invoke("SetFalse", time);
}
if (Input.GetKeyDown(disableSpikes) && toggleSpikes == false)
{
prefabSpikes.SetActive(true);
Debug.Log("Anable");
//Thread.Sleep(1000);
Invoke("SetTrue", time);
}
if (Input.GetKeyDown(disableGreen) && toggleGreen == true)
{
prefabGreen.SetActive(false);
Debug.Log("Disable");
//Thread.Sleep(1000);
Invoke("SetFalse", time);
}
if (Input.GetKeyDown(disableGreen) && toggleGreen == false)
{
prefabGreen.SetActive(true);
Debug.Log("Anable");
//Thread.Sleep(1000);
Invoke("SetTrue", time);
}
if (Input.GetKeyDown(resetScore))
{
ScoreScriptBlue.scoreValueBlue = 0;
ScoreScriptRed.scoreValueRed = 0;
ScoreScriptGreen.scoreValueGreen = 0;
RoundScript.scoreValueRound = 0;
TimeScript.scoreValueTime = 0;
}
}
public void SetFalse()
{
toggleGreen = false;
toggleSpikes = false;
}
public void SetTrue()
{
toggleGreen = true;
toggleSpikes = true;
}
}

void Update() {
if (Input.GetKeyDown(disableSpikes) && toggleSpikes == true){
// show
// renderer.enabled = true;
gameObject.GetComponent<Renderer>().enabled = true;
}
if (Input.GetKeyDown(disableSpikes) && toggleSpikes == false) {
// hide
// renderer.enabled = false;
gameObject.GetComponent<Renderer>().enabled = false;
}
}

play if the player click in a blank space unity 2d

I'm making a 2d game for mobile and created a pause button on the canvas. the problem is that when i click the pause button the player shoots. I wish there was a way to block the shot when the touch is on an element of the UI.
is there any simple way to do this?
this is the code I wrote to detect clicks:
if(Input.touchCount > 0)
{
touch_ = Input.GetTouch(0);
if(touch_.phase == TouchPhase.Began)
{
touching = true;
touch_began_fun();
}
if(tocando)
{
toching_fun();
}
if(touch_.phase == TouchPhase.Ended)
{
touching = false;
touch_ended_fun();
}
}

Check the current selected game object of the EventSystem is null. If it is not null, the touch is on a UI element.
if(Input.touchCount > 0)
{
touch_ = Input.GetTouch(0);
if(touch_.phase == TouchPhase.Began && EventSystem.current.currentSelectedGameObject == null)
{
touching = true;
touch_began_fun();
}
if(tocando)
{
toching_fun();
}
if(touch_.phase == TouchPhase.Ended)
{
touching = false;
touch_ended_fun();
}
}

Game objects scaling up when transform.parent set to null

I'm working on a small game where objects are put in a boat, then a key press makes the boat "sail".
To move all the objects that are standing on the boat, i am setting the parent of each object to an empty guide object in the boat then changing the position of the boat. (I have also tried parenting the objects into the boat object itself)
The following is a script applied to the boat object.
variables set in the BoatScript class:
public class BoatScript : MonoBehaviour {
public List<string> boatList;
public KeyCode interact;
public GameObject tempObject;
public string whichSide;
public string direction;
public bool canSail;
}
Start and Update method:
void Start () {
canSail = false;
whichSide = "start";
direction = "toFinish";
speed = 0f;
}
void Update () {
if (canSail == true)
{
SetSail();
}
if (boatList.Contains("FARMER") && whichSide == "start" && Input.GetKeyDown(interact))
{
speed = 0.5f;
CharacterCheck();
}
else if (boatList.Contains("FARMER") && whichSide == "finish" && Input.GetKeyDown(interact))
{
speed = -0.05f;
CharacterCheck();
}
}
Here are my OnTrigger methods:
void OnTriggerEnter(Collider other)
{
Debug.Log(other.gameObject.name + " collided with " + gameObject.name);
promptText.text = "";
if(CheckValidObject(other.gameObject.name) == true) {
boatList.Add(other.gameObject.name);
logBox.text = logBox.text + "\nThe " + other.gameObject.name + " is in the boat";
}
if (other.gameObject.name == "FARMER")
{
promptText2.text = "Press E to set sail";
}
}
void OnTriggerExit(Collider other)
{
boatList.Remove(other.gameObject.name);
logBox.text = logBox.text + "\nThe " + other.gameObject.name + " has left the boat";
promptText.text = "";
if (other.gameObject.name == "FARMER")
{
promptText2.text = "";
}
}
Setting sail:
void SetSail()
{
promptText.text = "";
promptText2.text = "";
addParents();
if (whichSide == "sailing" && direction == "toFinish")
{
speed = 0.05f;
gameObject.transform.Translate(speed, 0, 0);
}
else if (whichSide == "sailing" && direction == "toStart")
{
speed = -0.05f;
gameObject.transform.Translate(speed, 0, 0);
}
else if (whichSide == "start" || whichSide == "finish")
{
gameObject.transform.Translate(speed, 0, 0);
removeParents();
}
}
void addParents()
{
foreach(string o in boatList)
{
GameObject obj = GameObject.Find(o);
obj.GetComponent<Rigidbody>().useGravity = false;
obj.GetComponent<Rigidbody>().isKinematic = true;
if (obj.name == "FARMER") { obj.transform.parent = playerGuide.transform; }
else {obj.transform.parent = itemGuide.transform; }
}
}
void removeParents()
{
foreach (string o in boatList)
{
GameObject obj = GameObject.Find(o);
obj.GetComponent<Rigidbody>().useGravity = true;
if(obj.name != "FARMER") {obj.GetComponent<Rigidbody>().isKinematic = false; }
obj.transform.parent = null;
}
}
The problem: Once the boat reaches and hits the collider for the other side, the boat stops as expected but the objects that were just removed from the parent begin to scale up continuously like this:
e.g 1 https://i.gyazo.com/d35ae729757b8e71c25fd1b4a3857dae.mp4
e.g 2 https://i.gyazo.com/80637919bfd114a42d187300b7faef25.mp4
I'm not too sure what is causing this. Any help is much appreciated, thank you.

Instead of setting the parent via transform.parent, use transform.SetParent(targetTransform, false);. The second, bool, parameter determines if the game object's transform will maintain it's position, orientation, and scale. By setting it to false, the transform will maintain it's current values, while setting it to true will modify the position, orientation, and scale to maintain the world position. You can check this for further info transform.SetParent

Are youu sure it is scaling up and not moving up in the Z axes? From what im looking it is going towards the camera but not scaling up. You should debug the position and scale in the update method to see whats really happening there.
Below comment: "Well then you will have to debug it more carefully, i would first try, setting canSail to false as soon as it reaches the end. Perhaps the method addParent which is always being executed is wrong, what does the object itemGuide does? edit: i just seen the second video, from my perspective that seems gravity, what you meant with problems with scaling up is because its moving out from the boat?"
Solution:
void SetSail()
{
promptText.text = "";
promptText2.text = "";
addParents();
if (whichSide == "sailing" && direction == "toFinish")
{
speed = 0.05f;
gameObject.transform.Translate(speed, 0, 0);
}
else if (whichSide == "sailing" && direction == "toStart")
{
speed = -0.05f;
gameObject.transform.Translate(speed, 0, 0);
}
else if (whichSide == "start" || whichSide == "finish")
{
gameObject.transform.Translate(speed, 0, 0);
canSail = false; //Adding this line solves the issues, must have been affecting transform properties to child objects.
removeParents();
}
}

Unity timer issue

I'll explain what I'm trying to do first of all.
I have an object with a material attached to it. From my camera I have a ray being projected and when it collides with my object I'm wanting the material of that object to be placed onto another, second object. This is what I have working.
Now I am trying to expand this by having the user hold the ray over the object for a protracted period of time before the material is taking off object 1 and placed on object 2. And I'm having some issues.
When my timers gets close to the allotted time, my ray seems to stop hitting it and the highlight (which appears when the ray touches it object) disappears. Then when I look away and back at the object, instead of resetting the time, the material instantly appears on my other object. So I think I might not be resetting my timer properly.
Infact I'm positive this is to do with my timer as even when my ray isn't hitting anything, it seems to trigger my change material event.
Could someone take a look at my code and tell me?
method which checks what object has been hit with a ray and casts its material onto the correct object
void CastRay()
{
if(hit.collider.gameObject.tag == "Colour1" && change_material == true)
{
new_colour1.ChangeObjectMaterialColour(hit.collider.gameObject.renderer.material.color);
var colums = GameObject.FindGameObjectsWithTag("column");
foreach( GameObject c in colums)
c.GetComponent<MeshRenderer>().materials[1].color = new_colour1.orignalMaterial;
}
}
void ResetTimer()
{
start_time = Time.time;
running_time = 0f;
track_timer = false;
}
Code that cast the highlights the object my ray has hit:
void HighLight(GameObject nextHitObject)
{
// Case1: Last ray and new ray both hit objects
if(lastHitObject != null && nextHitObject != null)
{
//1a: same objects, do nothing
if(lastHitObject.tag == nextHitObject.tag)return;
{ //1b: different objects, swap highlight texture
lastHitObject.renderer.material = oldMat;
lastHitObject = nextHitObject;
oldMat = lastHitObject.renderer.material;
lastHitObject.renderer.material = highlight_material;
track_timer = true;
return;
}
}
// Case2: Last ray hit nothing, new ray hit object.
if(lastHitObject == null && nextHitObject != null)
{
ResetTimer();
lastHitObject = nextHitObject;
oldMat = lastHitObject.renderer.material;
lastHitObject.renderer.material = highlight_material;
track_timer = true;
if(spawned_amount == 0)
{
StatusBar();
}
return;
}
// Case3: Last ray hit something, new ray hit nothing
if(lastHitObject != null && nextHitObject == null)
{
lastHitObject.renderer.material = oldMat;
lastHitObject = null;
track_timer = false;
return;
}
else
{
spawned_amount = 0;
Destroy (GameObject.FindWithTag("StatusBar"));
change_material = false;
}
}
Timer code
void Check(bool updateTimer)
{
if(updateTimer)
{
start_time = Time.time - end_time;
running_time += Time.deltaTime;
if ( running_time >= end_time )
{
track_timer = false;
}
}
else
end_time = Time.time;
}
My last method that should be set my change material bool to true once start_time is over 4 seconds.
void StatusBar()
{
if(start_time >= 4)
{
spawned_amount = 0;
Debug.Log("status bar function");
change_material = true;
Debug.Log("chaging amterial");
}
else
{
change_material = false;
ResetTimer();
Debug.Log("resetting timer");
}
}

Try working with this timer functionality instead:
float? start_time;
void ResetTimer()
{
start_time = null;
}
bool IsTimerDone()
{
if (start_time == null)
start_time = Time.time;
else if ((Time.time - start_time) >= 4)
{
ResetTimer();
return true;
}
return false;
}
It stores your data in a single float? start_time. If the value is null, you aren't timing anything. If it has a value, the timer is active. To start it or check on it, you use IsTimerDone(): the first time it is called 4 or more seconds after it starts, it will return true and reset the timer.

XNA : Is there a way to prevent other items(sprites) when dragging?

I was looking for a way to block other object from the same class to be dragged, when I begin dragging one and hover another it id dragged as well...
Here is my main item definition,
class DrawableObject
{
public Rectangle RectObject
public void Update(GameTime gameTime, MouseState ms)
{
if ((ButtonState.Pressed == Mouse.GetState().LeftButton))
if (RectObject.Intersects(new Rectangle(ms.X, ms.Y, 0, 0)))
Dragged = true;
else
Dragged = false;
if (Dragged)
RectObject = new Rectangle(ms.X - RectObject.Width / 2, ms.Y - RectObject.Height / 2, RectObject.Width, RectObject.Height);
}
}
The issue will be more tight as I will be creating more than 50 instance of this class.

You could keep a "global" property with the current object being dragged.
Then before accepting dragging each object will check if another is not yet dragged:
public void Update(GameTime gameTime, MouseState ms)
{
if (currentObject != null && this != currentObject) return;
if ((ButtonState.Pressed == Mouse.GetState().LeftButton))
{
if (RectObject.Intersects(new Rectangle(ms.X, ms.Y, 0, 0)))
{
Dragged = true;
currentObject = this;
}
}
else
...
}