Need help with new Modul "Scare"

[Rattenjunge8080]

Hello,

is this community still alive? ^^

I need help with developing a module…I will post my “pseudocode” below.

You will see that i’am a noob on Javascript and on the structure of the MagicMirror-Build–>Thats why I added some “pseudo-code”. Maybe someone can help me, make it real code.

What do i want to do?
My Mirror works fine, my friends love it. I want to create a Modul to “scare” them a bit.
These are the tasks:
-Modul is shown/visible via MMM-Remote or GPIO Button Press (REST API-Call)
-A picture is shown, to lure a friend near it (shown a small picture/puzzle etc.)
-After 10s another, very scary picture is shown
-a Sound is played, which will scare the people.
-When the MMM-Remote or REST API-CALL will unshow/invisible the module, the pictures will be deleted, so that the procedure will start again when the module will be activated again.

I wrote some code, I know that its not working like that. But maybe some Javascript pro can help me find the correct expressions…

Module.register("Scare", {
	// Default module config.
	defaults: {
	//The container which will be shown in DOM
	const container = document.createElement("div");
	
	//Now the 2 Images
	const image1 = document.createElement("img");
	image.src = '/modules/Scare/img1.png';
	image.classList.add("image1");
	
	const image2 = document.createElement("img");
	image.src = '/modules/Scare/scaryImage.png';
	image.classList.add("scaryImage");

	},
	
	getDom: function(){
		
	    // !! pseudocode !! TODO: How to check if the module was called by MMM-remote that it is visible/shown? where does this notification land? 
	    if(this.isVisible() {
	    		showImageAndPlaySound();
	    		return this.container;
	    } 
	    else{
		// When the Module is not shown/deactivated, then remove the 2 Images
		this.container.removeChild(image1);
		this.container.removeChild(image2);
	    }
	},
	
	/*
	 * Here the first Image will be added to a container, shown on screen 
	 * and a timer will count down. Let them feel safe for a while...
	 * Then a new image will pop up and a sound is played
	 */
	showImageAndPlaySound: function() {
	  
	  this.container.classList.add("scare-container");
	  
	  //Put in picture to let it print on DOM  
	  this.container.appendChild(image);
	  this.updateDom();
	  
	  //here the Mirror will show 10s the first picture
	  sleep(10000);
	  
	  //now add the scary image and play a sound which will scare everyone >:D
	  this.container.appendChild(image2);
	  this.updateDom();
	  
	  //Generate the Audio from local file
	  var audio = new Audio(localPath+"/modules/Scare/sounds/scare.mp3");
	  audio.play();
	  
	},

	//a function which will add a delay when scaring the people.	
	sleep: function(milliseconds) {
	  const date = Date.now();
	  let currentDate = null;
	  do {
		currentDate = Date.now();
	  } while (currentDate - date < milliseconds);
	},

    //is there anything to do here? 
      socketNotificationReceived: function(notification, payload) {

	console.log(notification);
	console.log(payload);   
      }
    
    
});

[sdetweil]

@Rattenjunge8080 said in Need help with new Modul "Scare":

“Scare”

the modulename

module: “Scare”.

the folder name
modules/Scare

and the filename
Scare.js

AND the register
Module.register(“Scare”, {

must all match exactly

MagicMirror does not consider it an error if it can’t find the file…

also, getdom MUST return something, at min and empty div

you can debug the code by using the developers window, sources tab

ctrl-shift-i to open (or close) the developers window

[Rattenjunge8080]

@sdetweil

hey, thanks for the fast reply!

Modulename, registering it, making it availeble on the config file is not the problem. The problem is Javascript.
As you can see, it is written in pseudocode and i need the correct expressions…

You are right with the getDom, I will add a return value at the end, an empty div-container is created in the default-part.

it looks now like this:

	getDom: function(){
		
	    // pseudocode TODO: How to check if the module was called by MMM-remote that it is visible?
	    if(this.isVisible() {
		showImageAndPlaySound();
	    } 
	    else{
		//When the Module is not shown, then remove the 2 Images
		this.container.removeChild(image1);
		this.container.removeChild(image2);
	    }
	    return this.container;
	},

Can you help me with the showImageAndPlaySound(); method? and how do i detect if the module is made visible/shown?

Thanks a lot!

[sdetweil]

@Rattenjunge8080

see my SampleModule, which implements the spec, https://docs.magicmirror.builders/development/introduction.html

https://github.com/sdetweil/SampleModule

the suspend and resume methods are hide and show

[Rattenjunge8080]

@sdetweil sorry, this is also not working.

I used your SampleModule (named it helloworld and it shows everything on the screen) and did this to resume and suspend:

	// system notification your module is being hidden
	// typically you would stop doing UI updates (getDom/updateDom) if the module is hidden
	suspend: function(){
		console.log('suspend');
		Log.log("suspend");

	},

	// system notification your module is being unhidden/shown
	// typically you would resume doing UI updates (getDom/updateDom) if the module is shown
	resume: function(){
		console.log('resume');
		Log.log("resume");

	},

When I now do a npm start dev the console is not showing the logs from the resume and suspend function when I Show and Hide the module by Remote or API-Call:

This logging works fine in other modules…

Any ideas?

[sdetweil]

@Rattenjunge8080 there is a helloworld already

did u change all the places for ‘SampleModule’

folder, filename and register?

[Rattenjunge8080]

@sdetweil omg…I’am so incredible stupid…I named your module “helloworld”, forgot that of course there is a default module named “helloworld”…

it is working, i see the resume and suspend logs.

Ok, i will try to work on that Javascript code.

Thanks for the help!

[Rattenjunge8080]

@Rattenjunge8080 So, i found a Solution, if anyone is interested, be my guest to copy this (spaghetti-code! I catch exceptions cause i am not able to check if and how many pictures are already loaded):

/* MagicMirror²
 * Module: Scare
 *
 * By Rattenjunge8080
 * 
 */
Module.register("Scare", {
	
	// Default module config.
	defaults: {
		
	},
	
	start: function(){
		//The container which will be shown in DOM
		this.container = document.createElement("div");  
		this.visible = true;	//set true via resume
		this.blocker = false; 	//block multiple DOM-calls
		
		image1 = document.createElement("img");
		image1.src = '/modules/Scare/img1.jpg';
		image1.classList.add("image1");
		
		image2 = document.createElement("img");
		image2.src = '/modules/Scare/img2.jpg';
		image2.classList.add("image2");
	},
	
	// system notification your module is being hidden
	// typically you would stop doing UI updates (getDom/updateDom) if the module is hidden
	suspend: function(){
		console.log('suspend');
		this.visible = false;
		this.updateDom(1000); 
		//TODO If in future not all pictures are removed->Delete the container:
		//this.container.remove();
	},

	// system notification your module is being unhidden/shown
	// typically you would resume doing UI updates (getDom/updateDom) if the module is shown
	resume: function(){
		console.log('resume');
		//TODO If in future not all pictures are removed->add here the container:
		//this.container = document.createElement("div");
		this.visible = true;
		this.updateDom();
	},
	
	
	/*
	 * Here the first Image will be added to a container, shown on screen 
	 * and a timer will count down. Let them feel safe for a while...
	 * then a new image will pop up and a sound is played
	 */
	showImageAndPlaySound() {
	  
	  this.blocker = true;
	  //TODO: Maybe useful in future
	  //this.container.innerHTML = "<img src=\"/modules/Scare/OVAL.png\" width=\"200px\" height=\"500px\">";
	  
	  //Put in picture to let it print on DOM  
	  this.container.appendChild(image1);
	  this.updateDom();
	  
	  console.log("set timeout 10s");
	  
	  try {
		setTimeout(() => this.container.removeChild(image1), 10000);

	  }catch (e) {console.log("catch timeout line 70");}
	  
	  setTimeout(() => this.container.appendChild(image2), 10000);

	  this.updateDom();
	  	  
	  //Generate the Audio from local file   TODO auch mit setTimeout machen
	  var audio = new Audio("/modules/Scare/sound.mp3");
	  audio.play();
	  
	  this.blocker = false;	
	  
	},

	/*
	 * Here the first Image will be added to a container, shown on screen 
	 * and a timer will count down. Let them feel safe for a while...
	 * then a new image will pop up and a sound is played
	 */
	getDom: function(){
		
		if(this.visible){
			
			if(this.blocker === false){
				this.showImageAndPlaySound();
			}else{}
			
		}else{
			//When the Module is not shown, then remove the 2 Images
			try {
				this.container.removeChild(image1);
				this.container.removeChild(image1);
				this.container.removeChild(image1);
				this.container.removeChild(image1);
				this.container.removeChild(image1);
				this.container.removeChild(image1);
			}
			catch (e) {console.log("catch remove child img 1");}
			try {
				this.container.removeChild(image2);
				this.container.removeChild(image2);
				this.container.removeChild(image2);
				this.container.removeChild(image2);
				this.container.removeChild(image2);
				this.container.removeChild(image2);
			}catch (e) {console.log("catch remove child img 2");}

	    }		

		return this.container;
	}
    
});