Develop Reference

Error with animation component in Unity3D when adding a programming script to it to Select windows from my panels in an AR app for android

Hello I am developing an augmented reality app for android. I made animations with the Animation component of the Anchored Position type for Anchored position of my windows that are contained in different panels.When adding a script to the unity Animation component to Select a window depending on whether I'm clicking it or not; I throw the following mistakes:
This is the script that I use for programming (note that it is from the Animation component). I'm not sure if I need to import some libraries, or what's wrong with my code, why doesn't it compile? Understanding that this code is a bit old; from 2019.
This is the code and I'm relying on this youtube video: https://www.youtube.com/watch?v=WBGY5TxmjrA at minute 29.
``
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
public class SelecionarVentana : MonoBehaviour
{
public GameObject VentanaGuerrero;
public GameObject VentanaGuitarra;
public GameObject VentanaPiano;
public GameObject VentanaTigre;
Animation AVentanaGuerrero;
Animation AVentanaGuitarra;
Animation AVentanaPiano;
Animation AVentanaTigre;
bool VisibleVGuerrero = false;
bool VisibleVGuitarra = false;
bool VisibleVPiano = false;
bool VisibleVTigre = false;
void Start()
{
AVentanaGuerrero = VentanaGuerrero.GetComponent<Animation>();
AVentanaGuitarra = VentanaGuitarra.GetComponent<Animation>();
AVentanaPiano = VentanaPiano.GetComponent<Animation>();
AVentanaTigre = VentanaTigre.GetComponent<Animation>();
}
public void VentanaGuePulsada()
{
if (VisibleVGuerrero == false)
{
AVentanaGuerrero["Guerrero"].speed = 1;
AVentanaGuerrero.Play();
VisibleVGuerrero = true;
}
}
public void VentanaGuiPulsada()
{
if (VisibleVGuitarra == false)
{
AVentanaGuitarra["Guitarra"].speed = 1;
AVentanaGuitarra.Play();
VisibleVGuitarra = true;
}
}
public void VentanaPiaPulsada()
{
if (VisibleVPiano == false)
{
AVentanaPiano["Piano"].speed = 1;
AVentanaPiano.Play();
VisibleVPiano = true;
}
}
public void VentanaTigPulsada()
{
if (VisibleVTigre == false)
{
AVentanaTigre["Tigre"].speed = 1;
AVentanaTigre.Play();
VisibleVTigre = true;
}
}
public void VentanaNoPulsada()
{
string NombreBoton = EventSystem.current.currentSelectedGameObject.name;
if (NombreBoton != "Guerrero" & VisibleVGuerrero == true)
{
AVentanaGuerrero["Guerrero"].speed = -1;
AVentanaGuerrero["Guerrero"].time = AVentanaGuerrero["Guerrero"].length;
AVentanaGuerrero.Play();
VisibleVGuerrero = false;
}
if (NombreBoton != "Guitarra" & VisibleVGuitarra == true)
{
AVentanaGuitarra["Guitarra"].speed = -1;
AVentanaGuitarra["Guitarra"].time = AVentanaGuitarra["Guitarra"].length;
AVentanaGuitarra.Play();
VisibleVGuitarra = false;
}
if (NombreBoton != "Piano" & VisibleVPiano == true)
{
AVentanaPiano["Piano"].speed = -1;
AVentanaPiano["Piano"].time = AVentanaPiano["Piano"].length;
AVentanaPiano.Play();
VisibleVPiano = false;
}
if (NombreBoton != "Tigre" & VisibleVTigre == true)
{
AVentanaTigre["Tigre"].speed = -1;
AVentanaTigre["Tigre"].time = AVentanaTigre["Tigre"].length;
AVentanaTigre.Play();
VisibleVTigre = false;
}
}
}
``
What's wrong with this old code I try to compile it into unity. I'm on unity version 2021.3.10f1.

Unity and Visual Studio - Issues with a button not working

So I downloaded the assets file of the final version of the Sloan Kelly Card Game Project from YouTube Link to the video where you can download it in the description and I was playing around with the game it was all working fine.
I then re-opened the game the project the next day and the 'Stick Button' is no longer working. It appears on screen and appears intractable but it will not press.
I made a couple of changes to the code to make it easier to read but didn't think i had changed anything to do with this button. The rest of the code runs fine just this one button.
I'm unsure how to link my project assets package on this sight, but I can show you the code for the button and was just wondering if anyone can see the problem straight away / could you tell me how to link the whole file so you can get a better look at what is happening.
Thanks in advance
using UnityEngine;
using System.Collections;
using UnityEngine.UI;
public class GameController : MonoBehaviour
{
int dealersFirstCard = -1;
public CardStack player;
public CardStack dealer;
public CardStack deck;
public Button hitButton;
public Button stickButton;
public Button playAgainButton;
public Text winnerText;
/*
* Cards dealt to each player
* First player hits/sticks/bust
* Dealer's turn unyil minimum of 17 value in hand
* Dealers cards: first card is hidden, other cards are facing
*/
#region Hit
public void Hit()
{
player.Push(deck.Pop());
if (player.HandValue() > 21)
{
hitButton.interactable = false;
stickButton.interactable = false;
StartCoroutine(DealersTurn());
}
}
#endregion
#region Stick
public void Stick()
{
hitButton.interactable = false;
stickButton.interactable = false;
StartCoroutine(DealersTurn());
}
#endregion
#region Play Again
public void PlayAgain()
{
playAgainButton.interactable = false;
player.GetComponent<CardStackView>().Clear();
dealer.GetComponent<CardStackView>().Clear();
deck.GetComponent<CardStackView>().Clear();
deck.CreateDeck();
winnerText.text = "";
hitButton.interactable = true;
stickButton.interactable = true;
dealersFirstCard = -1;
StartGame();
}
#endregion
void Start()
{
StartGame();
}
void StartGame()
{
for (int i = 0; i < 2; i++)
{
player.Push(deck.Pop());
HitDealer();
}
}
void HitDealer()
{
int card = deck.Pop();
if (dealersFirstCard < 0)
{
dealersFirstCard = card;
}
dealer.Push(card);
if (dealer.CardCount >= 2)
{
CardStackView view = dealer.GetComponent<CardStackView>();
view.Toggle(card, true);
}
}
#region Dealers turn
IEnumerator DealersTurn()
{
hitButton.interactable = false;
stickButton.interactable = false;
CardStackView view = dealer.GetComponent<CardStackView>();
view.Toggle(dealersFirstCard, true);
view.ShowCards();
yield return new WaitForSeconds(1f);
while (dealer.HandValue() < 17)
{
HitDealer();
yield return new WaitForSeconds(1f);
}
if (player.HandValue() > 21 || (dealer.HandValue() >= player.HandValue() && dealer.HandValue() <= 21))
{
winnerText.text = "You Lose!";
}
else if (dealer.HandValue() > 21 || (player.HandValue() <= 21 && player.HandValue() > dealer.HandValue()))
{
winnerText.text = "You Win!";
}
else
{
winnerText.text = "The house wins!";
}
yield return new WaitForSeconds(1f);
playAgainButton.interactable = true;
}
#endregion
}

Unity Crashing on Play, most likely infinite While loop, but cannot locate issue

thanks for reading.
I'm currently building a small memory card game in Unity using C#. I have the main portion of code finished but when I press the play button on a certain scene Unity freezes.
I believe it is due to an infinite While loop, but I can not find the issue. I would really appreciate any help anyone can offer. I will leave my code below. Thanks in advance.
using System.Collections;
using System.Collections.Generic;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
using UnityEngine;
public class Pairs : MonoBehaviour {
public Sprite[] face; //array of card faces
public Sprite back;
public GameObject[] deck; //array of deck
public Text pairsCount;
private bool deckSetUp = false;
private int pairsLeft = 13;
// Update is called once per frame
void Update () {
if (!deckSetUp)
{
SetUpDeck();
}
if (Input.GetMouseButtonUp(0)) //detects left click
{
CheckDeck();
}
}//Update
void SetUpDeck()
{
for (int ix = 0; ix < 2; ix++)
{
for(int i = 1; i < 14; i++)//sets up card value (2-10 JQKA)
{
bool test = false;
int val = 0;
while (!test)
{
val = Random.Range(0, deck.Length);
test = !(deck[val].GetComponent<Card>().SetUp);
}//while
//sets up cards
deck[val].GetComponent<Card>().Number = i;
deck[val].GetComponent<Card>().SetUp = true;
}//nested for
}//for
foreach (GameObject crd in deck)
{
crd.GetComponent<Card>().setUpArt();
}
if (!deckSetUp)
{
deckSetUp = true;
}
}//SetUpDeck
public Sprite getBack()
{
return back;
}//getBack
public Sprite getFace(int i)
{
return face[i - 1];
}//getFace
void CheckDeck()
{
List < int > crd = new List<int>();
for(int i = 0; i < deck.Length; i++)
{
if(deck[i].GetComponent<Card>().State == 1)
{
crd.Add(i);
}
}
if(crd.Count == 2)
{
CompareCards(crd);
}
}//CheckDeck
void CompareCards(List<int> crd)
{
Card.NO_TURN = true; //stops cards turning
int x = 0;
if(deck[crd[0]].GetComponent<Card>().Number ==
deck[crd[1]].GetComponent<Card>().Number)
{
x = 2;
pairsLeft--;
pairsCount.text = "PAIRS REMAINING: " + pairsLeft;
if(pairsLeft == 0) // goes to home screen when game has been won
{
SceneManager.LoadScene("Home");
}
}
for(int j = 0; j < crd.Count; j++)
{
deck[crd[j]].GetComponent<Card>().State = x;
deck[crd[j]].GetComponent<Card>().PairCheck();
}
}//CompareCards
}
I believe the issue lies in the while(!test) but i do not know why test never become true.
using System.Collections;
using System.Collections.Generic;
using UnityEngine.UI;
using UnityEngine;
public class Card : MonoBehaviour {
public static bool NO_TURN = false;
[SerializeField]
private int cardState; //state of card
[SerializeField]
private int cardNumber; //Card value (1-13)
[SerializeField]
private bool _setUp = false;
private Sprite back; //card back (Green square)
private Sprite face; //card face (1-10 JQKA)
private GameObject pairsManager;
void Begin()
{
cardState = 1; //cards face down
pairsManager = GameObject.FindGameObjectWithTag("PairsManager");
}
public void setUpArt()
{
back = pairsManager.GetComponent<Pairs>().getBack();
face = pairsManager.GetComponent<Pairs>().getFace(cardNumber);
turnCard();//turns the card
}
public void turnCard() //handles turning of card
{
if (cardState == 0)
{
cardState = 1;
}
else if(cardState == 1)
{
cardState = 0;
}
if (cardState == 0 && !NO_TURN)
{
GetComponent<Image>().sprite = back; // shows card back
}
else if (cardState == 1 && !NO_TURN)
{
GetComponent<Image>().sprite = face; // shows card front
}
}
//setters and getters
public int Number
{
get {return cardNumber;}
set { cardNumber = value;}
}
public int State
{
get { return cardState; }
set { cardState = value; }
}
public bool SetUp
{
get { return _setUp; }
set { _setUp = value; }
}
public void PairCheck()
{
StartCoroutine(pause ());
}
IEnumerator pause()
{
yield return new WaitForSeconds(1);
if (cardState == 0)
{
GetComponent<Image>().sprite = back;
}
else if (cardState == 1)
{
GetComponent<Image>().sprite = face;
}
}
}
Thank you for reading, I will post a link to the github repository if that helps.
github repository

Your deck array has at least one card in it that has _setUp set to true which would make it go in a infinite loop.
The reason it goes in a infinite loop is because it will have set all available _setUp to true and it would keep looking for _setUp that are set to false and it will never find any.
The reason you need at least 26 object that have _setUp to false is because in the nested for loop you loop 13 times and then you do that twice which gives a total of 26 loops. So you need at least 26 objects.
What you can do to make sure that they're all false is to set them all to false before entering the for loop
for(int i = 0; i < deck.Length; i++)
{
deck[i].GetComponent<Card>().SetUp = false;
}

Unity3d: Check Microphone Input Volume

I want to use the volume of the audio that the user inputs with his/her microphone in Unity3d in a visual representation. So I'd like to get a value between 0 and 1 that tell how loud the user is. I went looking for a script, but the part that handles the volume doesn't work properly, that part is the method LevelMax(). For some reason micPosiotion never becomes higher than 0. I don't know what Microphone.GetPosition really does except for this:
http://docs.unity3d.com/ScriptReference/Microphone.GetPosition.html
Does anyone know what goes wrong in the method LevelMax()? I am getting no errors or anything. And it finds my microphone properly, and it is working. I tested it.
This is the code:
using UnityEngine;
using System.Collections;
public class MicInput : MonoBehaviour{
public float testSound;
public static float MicLoudness;
private string _device;
private AudioClip _clipRecord = new AudioClip();
private int _sampleWindow = 128;
private bool _isInitialized;
void InitMic()
{
if (_device == null) {
_device = Microphone.devices [0];
_clipRecord = Microphone.Start (_device, true, 999, 44100);
Debug.Log (_clipRecord);
}
}
void StopMicrophone()
{
Microphone.End (_device);
}
float LevelMax()
{
float levelMax = 0;
float[] waveData = new float[_sampleWindow];
int micPosition = Microphone.GetPosition (null) - (_sampleWindow + 1);
if (micPosition < 0) {
return 0;
}
_clipRecord.GetData (waveData, micPosition);
for (int i = 0; i < _sampleWindow; ++i) {
float wavePeak = waveData [i] * waveData [i];
if (levelMax < wavePeak) {
levelMax = wavePeak;
}
}
return levelMax;
}
void Update()
{
MicLoudness = LevelMax ();
testSound = MicLoudness;
}
void OnEnable()
{
InitMic ();
_isInitialized = true;
}
void OnDisable()
{
StopMicrophone ();
}
void OnDestory()
{
StopMicrophone ();
}
void OnApplicationFocus(bool focus)
{
if (focus) {
if (!_isInitialized) {
InitMic ();
_isInitialized = true;
}
}
if (!focus) {
StopMicrophone ();
_isInitialized = false;
}
}
}

This script works. I have just tested it and it shows the peak level of the mic in the inspector as the variable testSound. There is something going wrong on your end that is causing it to not begin recording into the audioclip. That is why it is always returning that the micPosition is less than zero.
The only thing that I can see that is slightly off is Microphone.GetPosition(null) inside the LevelMax method. Try changing this to Microphone.GetPosition(_device)
You might also want to try going through your different audio devices by changing the index passed in the line (in the InitMic method):
_device = Microphone.devices [0];
Try changing this to 1,2,3 etc and see if you are just finding the wrong audio device. If you have more than one mic or are not using the default mic then this could be the problem.
Also, I think you are misunderstanding how digital audio works. GetPosition gets the current sample that the microphone is recording into the audioclip (i.e the latest sample/current sample). This basically means that it gets the amount of samples that have been recorded. You are recording at 44.1Khz samples. That means that every second the audio is being checked 441000 times and a level is assigned to that individual sample. This is called the sample rate and it can be changed. For example CD's use the sample rate 44.1kHz where as digital video tends to use 48kHz. The accuracy of the the sample being recorded is defined by the bit-depth (but you don't have to worry about this). For example CD's use 16bit (which needs to be dithered) whereas digital media uses 24bit(generally). The line:
int micPosition = Microphone.GetPosition(null)-(_sampleWindow+1);
Says "find the amount samples we have recorded 129 samples ago". It then iterates through the values of the next 128 samples and finds the 'loudest' sample and returns it. This is then shown in the inspector. If you don't understand anything I've just said then look into how digital audio is recorded. It's not too complicated to understand the basics of it.

You should check out this thread, but here is the code that may help you:
public class MicInput : MonoBehaviour {
public static float MicLoudness;
private string _device;
//mic initialization
void InitMic(){
if(_device == null) _device = Microphone.devices[0];
_clipRecord = Microphone.Start(_device, true, 999, 44100);
}
void StopMicrophone()
{
Microphone.End(_device);
}
AudioClip _clipRecord = new AudioClip();
int _sampleWindow = 128;
//get data from microphone into audioclip
float LevelMax()
{
float levelMax = 0;
float[] waveData = new float[_sampleWindow];
int micPosition = Microphone.GetPosition(null)-(_sampleWindow+1); // null means the first microphone
if (micPosition < 0) return 0;
_clipRecord.GetData(waveData, micPosition);
// Getting a peak on the last 128 samples
for (int i = 0; i < _sampleWindow; i++) {
float wavePeak = waveData[i] * waveData[i];
if (levelMax < wavePeak) {
levelMax = wavePeak;
}
}
return levelMax;
}
void Update()
{
// levelMax equals to the highest normalized value power 2, a small number because < 1
// pass the value to a static var so we can access it from anywhere
MicLoudness = LevelMax ();
}
bool _isInitialized;
// start mic when scene starts
void OnEnable()
{
InitMic();
_isInitialized=true;
}
//stop mic when loading a new level or quit application
void OnDisable()
{
StopMicrophone();
}
void OnDestroy()
{
StopMicrophone();
}
// make sure the mic gets started & stopped when application gets focused
void OnApplicationFocus(bool focus) {
if (focus)
{
//Debug.Log("Focus");
if(!_isInitialized){
//Debug.Log("Init Mic");
InitMic();
_isInitialized=true;
}
}
if (!focus)
{
//Debug.Log("Pause");
StopMicrophone();
//Debug.Log("Stop Mic");
_isInitialized=false;
}
}
}

Cardboard Magnet Detection

I got some trouble with my unity cardboard app. May some of you guys can help me.
I have build a little Island with Animations and A second island as a main menu.
So when the apps starts, you see the Island from above and the Logo of the App.
When the user pull down the magnet button on side the app will starts another level.
I used this scripts:
http://www.andrewnoske.com/wiki/Unity_-_Detecting_Google_Cardboard_Click
Detecting Google Cardboard Magnetic Button Click - Singleton Implementation
CardboardMagnetSensor.cs and CardboardTriggerControlMono.cs
I created a script in my asset folder(CardboardMagnetSensor.cs) like in the description from Link. Than I created a second script(CardboardTriggerControlMono.cs) like in the discription an dragged it onto my CardboardMain in may Projekt.
The CardboardTriggerControlMono.cs looks like:
using UnityEngine;
using System.Collections;
public class CardboardTriggerControlMono : MonoBehaviour {
public bool magnetDetectionEnabled = true;
void Start() {
CardboardMagnetSensor.SetEnabled(magnetDetectionEnabled);
// Disable screen dimming:
Screen.sleepTimeout = SleepTimeout.NeverSleep;
}
void Update () {
if (!magnetDetectionEnabled) return;
if (CardboardMagnetSensor.CheckIfWasClicked()) {
Debug.Log("Cardboard trigger was just clicked");
Application.LoadLevel(1);
CardboardMagnetSensor.ResetClick();
}
}
}
The CarboardMagnetSensor:
using UnityEngine;
using System.Collections.Generic;
public class CardboardMagnetSensor {
// Constants:
private const int WINDOW_SIZE = 40;
private const int NUM_SEGMENTS = 2;
private const int SEGMENT_SIZE = WINDOW_SIZE / NUM_SEGMENTS;
private const int T1 = 30, T2 = 130;
// Variables:
private static bool wasClicked; // Flips to true once set off.
private static bool sensorEnabled; // Is sensor active.
private static List<Vector3> sensorData; // Keeps magnetic sensor data.
private static float[] offsets; // Offsets used to detect click.
// Call this once at beginning to enable detection.
public static void SetEnabled(bool enabled) {
Reset();
sensorEnabled = enabled;
Input.compass.enabled = sensorEnabled;
}
// Reset variables.
public static void Reset() {
sensorData = new List<Vector3>(WINDOW_SIZE);
offsets = new float[SEGMENT_SIZE];
wasClicked = false;
sensorEnabled = false;
}
// Poll this once every frame to detect when the magnet button was clicked
// and if it was clicked make sure to call "ResetClick()"
// after you've dealt with the action, or it will continue to return true.
public static bool CheckIfWasClicked() {
UpdateData();
return wasClicked;
}
// Call this after you've dealt with a click operation.
public static void ResetClick() {
wasClicked = false;
}
// Updates 'sensorData' and determines if magnet was clicked.
private static void UpdateData() {
Vector3 currentVector = Input.compass.rawVector;
if (currentVector.x == 0 && currentVector.y == 0 && currentVector.z == 0) {
return;
}
if(sensorData.Count >= WINDOW_SIZE) sensorData.RemoveAt(0);
sensorData.Add(currentVector);
// Evaluate model:
if(sensorData.Count < WINDOW_SIZE) return;
float[] means = new float[2];
float[] maximums = new float[2];
float[] minimums = new float[2];
Vector3 baseline = sensorData[sensorData.Count - 1];
for(int i = 0; i < NUM_SEGMENTS; i++) {
int segmentStart = 20 * i;
offsets = ComputeOffsets(segmentStart, baseline);
means[i] = ComputeMean(offsets);
maximums[i] = ComputeMaximum(offsets);
minimums[i] = ComputeMinimum(offsets);
}
float min1 = minimums[0];
float max2 = maximums[1];
// Determine if button was clicked.
if(min1 < T1 && max2 > T2) {
sensorData.Clear();
wasClicked = true; // Set button clicked to true.
// NOTE: 'wasClicked' will now remain true until "ResetClick()" is called.
}
}
private static float[] ComputeOffsets(int start, Vector3 baseline) {
for(int i = 0; i < SEGMENT_SIZE; i++) {
Vector3 point = sensorData[start + i];
Vector3 o = new Vector3(point.x - baseline.x, point.y - baseline.y, point.z - baseline.z);
offsets[i] = o.magnitude;
}
return offsets;
}
private static float ComputeMean(float[] offsets) {
float sum = 0;
foreach(float o in offsets) {
sum += o;
}
return sum / offsets.Length;
}
private static float ComputeMaximum(float[] offsets) {
float max = float.MinValue;
foreach(float o in offsets) {
max = Mathf.Max(o, max);
}
return max;
}
private static float ComputeMinimum(float[] offsets) {
float min = float.MaxValue;
foreach(float o in offsets) {
min = Mathf.Min(o, min);
}
return min;
}
}
And my steps:
http://www.directupload.net/file/d/3887/mtjygjan_jpg.htm
(sorry I´m not able to upload pictures here)
How ever, it wont work. When I start the app and pull down the magnet, nothing happens. May I did something wrong with switching the level over level index?
I use a nexus 4 and 5 for testing the app
Thanks allot and greetz to you!
Phillip

If you are using the Google Cardboard SDK for Unity, it currently has a bug that prevents Unity from seeing the magnet (and gyro, and accelerometer). That is probably why your script is not working. Until the bug is fixed, there is no good workaround, but you can instead use the property Cardboard.CardboardTriggered to detect if the magnet was pulled.
Update for Unity 5: The sensor bug is gone. Cardboard SDK does not block the sensors.