Develop Reference

How can I save the material of the player with playerprefs?

I have a game wehre you are a cube and you dodge obstacles, I just implemented the ability to change the color of the cube like changing skin. I did that by assigning a different material to the player when he presses "2".
Here is the script:
void Update()
{
if (Input.GetKeyDown("2"))
{
Object.GetComponent<MeshRenderer>().material = Material1;
}
}
When you die the scene resets and when you win a new scene is loaded, I would like the game to remember the material change even after the scene is reset or a new scene is loaded. I have done some research and found something called "PlayerPrefs" and I have been playing around with it but nothing even got close to working and I didn't really understand what i was doing.
I really want to understand how this works becuase I know i will be using it alot when making games. Can someone help me understand?
Thanks.

Create one gameobject and apply this script
public class SavingMaterial : MonoBehaviour
{
public static SavingMaterial instance;
public Material mat;
void Awake()
{
if(instance == null)
{
instance = this;
DontDestroyOnLoad(base.gameObject);
}
else
{
Destroy(base.gameObject);
}
}
public void StoreMaterial(MeshRenderer mesh)
{
mat = mesh.material;
}
}
When you want to store material call this function like this
SavingMaterial.instance.StoreMaterial(you meshrenderer component);
and when you need this material just get from this class like this
material = SavingMaterial.instance.mat;
and note that if you quit the game you loose saved material as it is store in variable otherwise scene change and reset won't affect it.

you only save int,string and bool in playerprefs. you have to store values of materials into string and then save this string into playerprefs.
alternatively you can assign this material to local variable and set that script on Dontdestroyonload so it will not reset as scene is destroy or reset.

Unity3D Door Open/Close Bug

I have a problem in my project. I created an animation to open the door and made it open whenever a button was pressed. Then I copied the animation and entered its value -1 to make the door close after 2 seconds, but if the character presses the door open button again while playing the closing animation, it plays that animation and this causes a bug in the game. I apologize for telling a little complicated. I am waiting for your answers. Here is my code ->
public Text text;
public Animator anim;
private void Start()
{
text.enabled = false;
anim = GetComponent<Animator>();
}
private void Update()
{
if(text.enabled && Input.GetKeyDown(KeyCode.E))
{
anim.Play("DoorOpen");
}
}
private void OnTriggerExit(Collider other)
{
text.enabled = false;
}
private void OnTriggerEnter(Collider other)
{
text.enabled = true;
}
}

You shouldn't use the Animator Play() method and instead create parameters like a Trigger that.. well... triggers the animation.
Also, you don't say what's the error you're getting so it is hard to help you, but I guess the animation is restarting? You can set so the animations can't be transitioned to itself, so it won't restart if triggered again before finishing. Edit your AnimatorController asset, and click on the animation that shouldn't transition to itself, then uncheck where it says precisely that: "Can transition to itself". (Maybe you have to double click it, maybe you have to click on the transition, don't really remember right now, you'll figure it out :) ).

Sound is not playing on collision

I'm working on a Game with Unity and now i want to implement a sound effect whenever the projectile hits an object. Somehow there is no sound playing. Here is the Code:
AudioSource sound;
void Start()
{
...
sound = GetComponent<AudioSource>();
...
}
void Destroy()
{
sound.Play();
}

You have not shown if Destroy() function is called or not. Please add a Debug.Log("Called") inside your Destroy() function and test it. If it is getting called, it could be related to the volume of the system or if the Audio component is in mute. Please check these initial things.
If it is not called then learn the difference between GetComponents.
When you attach the script to your gameobject that contains AudioComponent, write it this way:
private AudioSource sound;
void Start()
{
sound = GetComponent<AudioSource>();
sound.Play();
}
When you attach the script to a different gameObject and would like to reference the Audio gameObject to this script, write it this way:
public AudioSource sound;
void Start()
{
sound.GetComponent<AudioSource>(); //this is optional
sound.Play();
}
Don't forget to add it as reference (Drag & Drop Audio component's GameObject) in the second solution.

Playing animation on button click with a condition

I want to do menu animation. In the animator, its contain 2 animations. One is opening animation, the other is closing animation. I set the opening animation as default state and added condition between of them. The condition is a bool type parameter. I drag the script which controls they behaviours and animator component on gameobject, but when the opening animation plays and player clicks the play button the parameter turns into true but it doesn't play.
Animator canvasAnim;
public Button lvlSelector;
Button lvlSelector_A;
// Use this for initialization
void Start () {
canvasAnim = GetComponent<Animator>();
lvlSelector_A = lvlSelector.GetComponent<Button>();
lvlSelector_A.onClick.AddListener(LevelSelector);
}
IEnumerator SlideLevelSelectMenu()
{
yield return new WaitForSeconds(1f);
SceneManager.LoadScene("LevelSelectMenu");
}
void LevelSelector()
{
canvasAnim.SetBool("clickedclose", true);
StartCoroutine(SlideLevelSelectMenu());
}
Animator:
Gameobject:

This problem occurs because of your Animator. You should call Animator on Canvas game object (Not on Menu Manager). Just change your script to this:
void Start () {
canvasAnim = GameObject.Find("Canvas").GetComponent<Animator>();
...
}
I hope it helps you.

Start a movie on click

I have been having difficulty getting my movie to start playing once a certain button is hit. I can get it to work with void Start() but then the video starts playing as soon as the scene is loaded which I don't want. I have tried this for when the button is pressed to start playing the movie.
public MovieTexture myMovie;
public RawImage myLayer;
private new AudioSource audio;
public void onClick()
{
GetComponent<RawImage>().texture = myMovie as MovieTexture;
audio = GetComponent<AudioSource> ();
audio.clip = myMovie.audioClip;
myMovie.Play ();
audio.Play ();
}
The movie will show but not actually play. I'm sure I'm missing something obvious but as I am a noob at coding I can't figure out what it is. Any help would be greatly appreciated!

Make a custom method which will contain
void Play()
{
myMovie.Play ();
audio.Play ();
}
and assign it to the button component in the inspector
EDIT:
I meant, don't use onClick as you use Start etc, it's not executable like that. There are 2 ways:
1) You make a custom method (called whetever you want) e.g as I listed above and assign it to the onClick field in the inspector, press +, add a script and select a method from that script;
2)
public Button yourButton;
void Start () {
Button btn = yourButton.GetComponent<Button>();
btn.onClick.AddListener(TaskOnClick);
}
void TaskOnClick(){
Debug.Log ("You have clicked the button!");
}
like in the reference: docs.unity3d.com/ScriptReference/UI.Button-onClick.html

You can add a Video Player using Create -> Video -> Video Player
Set video player video clip, Render Mode as Camera Far Plane and Select camera as Main Camera
Create script as given below. Just call the playMovie() method in any button event