I had an idea tonight. Its about developing a game on Alexa where she is telling you a Story and you are the Player who is able to direct the Story in any way he wants to with the decisions he can make.
So an example would be:
[Some Story] .. where do you want to Go:
Pub for 50$
Hotel for 100$
Stay outside for freue
And the User can now decide where He wants to stay and then the Story continous and for example if you stay Out you get robbed and if you Go to the Pub you wake up with headache the next day.
So my question is how am I able to realise this in a smart way so the decisions can affect the Story Line.
My First thought was to Store the complete Story in a 2d String Array to Jump around different Stories but if this becomes a bigger there must be another way.
And I need to be able to Store the Point where I Stopped. Yet I have no idea of how to die this.
You can store the story and the user's progress in a database, either by writing an Alexa skill which sends requests to an Amazon Lambda function you would write or a custom web service you would write. Check out this documentation for how to get started writing Alexa skills.
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Context
I'm working on my first Game working with a Smart contract and I have some question.
On my game I have characters and cards, and both player will duel each other using one character and 10 card each.
For that, no issue: All players and cards metadata are stored into an IPFS buckets, and some extra metadata (like experiences) are stored into the smart-contract to be updated by the game.
The problem
Now I want to be able to create a duel function into my smart-contract. But I don't know how I can access to players and cards metadatas to be able to know you'll win.
"Solutions" I have in mind
#1: I never saw any IPFS fetcher to get the metadata, nor JSON parser.. So it's probably not the good way to do it.
#2: Do I have to implement a mapping(uint => Players) private playersMetadata; into my contract and load all metadata on it to be able to use it on the duel function ??
But #2.1: It'll enlarge the storage needed a lot !
And #2.2: How can I even load it ? By creating a function setPlayer(uint idx, Players playerMetadata) and mint 10k+ times this function ? It'll cost me so much !
#3: Do not implement this function on the smart-contract and do it on my web-server.. But I don't like that because I want the user to be able to read the smart-contract code and trust it (but don't trust me). So if I do it on my server side, they'll not be able to trust the function.
Thank you for helping me ! Have all a good day
There's no synchronous and straightforward way to access off-chain data (including IPFS, since it's on a different chain) from a smart contract.
You could use the oracle pattern to request the specified IPFS data from an offchain app that sends it back to the contract asynchronously (in a later block). But since one of your concerns is users' trust in the code, and this pattern introduces an element that the users can't control (the offchain app can theoretically pass to your contract a different value from what is actually stored on the IPFS), I won't go deeper into this approach.
Another option is to move the metadata required for the fight logic to the contract. You can shift the transaction fees to the users, so each time they want to perform an action (e.g. create a card, update a character, fight other player), their wallet will pop up asking them to pay the transaction fees.
Usually onchain games require a significant amount of data to be transferred. Some game authors make use of sidechains (e.g. Axie Infinity and their Ronin chain, which is a layer 2 chain connected to Ethereum), where the overall fees can be significantly lower (but a chain without fees would attract spam transactions flooding the network). This is also one of the approaches worth taking a look at.
Or possibly, smart contract just might not be a good tool for your use case. You could also create the game in a web technology, opensource the code, make getter endpoints publicly available, so that anyone can verify that the code that runs on your server really does what you claim it does.
I have a cool flutter app which is used to track staff attendance. A user can check-in and check out when they start/stop working and the app record that event, calculate the number of hours worked and send a weekly summary to the manager of the staff expected wages. The current problem is that some staff members forget to check out (everyone is ok with check-in) so we don’t have good numbers and we need to manually change the attendance. I would like to add something to remember them to check out, and I am looking for creative ideas to do so. My objective is to make something very affordable.
So far I thought about two options:
to use geolocation and track when staff get in/out of a certain location and log it as check-in and check out
to set a timer when they start the shift and send a local notification if after xx hours they have not done the checkout
Geolocation seems to be the best because I can even automate the checkin/check out and do it in the backend but it will consme lots of resources in the client because I would need to check their location every while even when their at at home or on holiday...
The timer has some limits and still, I would need to manage background tasks that are complex as well as imprecise checkout depengin on when the notification goes out.
Do you have any suggestions on anything simple to implement?
I would suggest the second option.
A simple scheduler which would look for all the employees who are checked in for more than x number of hours and then throw a clickable notification to checkout. It would be an easy and clean solution. However, it has several limitations as an employee might leave early but checkout later.
In my opinion, Your most clean solution would be to have an RFID/NFC check which automatically registers as a user checks out from the building.
Another thing that can be done if your employees are working mostly on their computers. There can be a browser extension or a web app which will clock in the time they are working on their laptops. Once they close it they will be automatically checked out.
I´m going to create a web service for learning purposes and wanted to combine it with my WoW Hobby. My goal would be to create a "simple" Addon, which tracks my battleground activity in real time.
So when queuing for AB it enters my data in an db and when I´m out of the BG it should delete the db entry. The information should be stored in an JSON/XML-File and whenever the bg-status changes it should execute the post/update on the DB on the RESTful service.
The real time communication is very important here and I would like to know which ways of communicating to a web service are available, so I could directly dive in and create a solution.I´d like to have resources instead of solutions.
Currently I´m not used to LUA, but would like to learn it to get the knowledge of creating such a service.Which sites are you suggesting for learning LUA, especially the WoW-API?
Addons only write to disk when you log out of a character (and read that saved data when you log in) so what you intend would not be possible.*
More involved ways of communicating with the rest of the computer or even the internet are prohibited to prevent the gain of certain advantages, an example would be looking up details about your Arena opponents.
* Well, there are certainly some ways, but rather complicated ones: a program monitoring sound output to check when the BG queue pop sound is played, or a screengrabber that registers when the BG score screen comes up (which can be viewed during the match though, too)
I am willing to create a two-player quiz game, in real time. For this I need to track when users are on my quiz's page and when they leave it. Basically, I need some kind of lobby, where players gather and from where my script picks two random players who should face each other in the game.
As many players would switch from online to offline in a very short time, I prefer not to use the classic 'update player status to database and then retrieve at a given interval the list of online players'. Currently, I am toying with the idea of using Comet Push, and have studied a little bit PubNub.
The actual quiz game I believe it is pretty easy to solve: use of classic Comet publish() to send answers and subscribe() to check the other user's status. But the thing that bothers me is how do I get that specific list with online users?
I tried to publish() a user_id when a user goes to the lobby, but how do I notify all the other users when this user goes offline? How do I display in the lobby the total number of connected users together with their names?
It's the first time I face Comet and its logic isn't entirely clear to me.
Thank you for your help!
You might want to try out Pusher and our (I work for Pusher) presence functionality. The presence channels let you easily implement room/lobby-style functionality and should meet your criteria.
You get an initial list of users subscribed to the channel when you subscribed
You are informed whenever a user subscribes (enters) and unsubscribes (leaves) the channel (room/lobby)
This way you don't need to implement this functionality yourself. It's part of the solution Pusher provides.
If anyone can help me with this, I'd be eternally in their debt.
Without getting bogged down in details, I'm trying to program an app so
that, for instance, while the application is currently launched, if I say the words,
"activate function A", a specific function which already exists in my app, is activated.
Have I explained myself clearly? In other words, on the screen of the phone is a button
which says "function A". When the software is "armed" and in listening mode, I want
the user to have the ability to simply say the words "activate function A",
(or any other phrase of my choice) and the screen option will be selected without requiring
the user to press the button with their hand, but rather, the option is selected/activated
via voice command.
My programmers and I have faced difficulties incorporating this new voice command capability,
even though it is obviously possible to do google searches with voice command, for instance.
Other voice command apps are currently in circulation, such as SMS dictation apps,
email writing apps, etc, so it is clearly possible to create voice command apps.
Does anyone know if this is possible, and if so, do you have advice on how to implement
this function?
QUESTION 2
Assuming that we are unable to activate function A via voice command, is it possible
to use voice command to cause the phone to place a call, and this call is received
by our server? The server then 'pings' the iPhone and instructs it to activate function A?
For this workaround to work, I would need the ability to determine the exact phrase.
In other words, the user can't be forced to use the word "call function A". I need the
ability to select the phrase which launches the function.
Hopefully I've been clear.
In other words, as a potential workaround to the obstacles we've been facing regarding
using voice command to activate a specific function within our app, is it possible
to harness the voice command capability already present in the phone? aka, to place
a phone call? And then this call is received by our server, and the server
accordingly pings the phone which placed the call, and instructs it to activate the function?
I obviously understand the necessity for the app to be currently launched, before it
would be possible for my application to receive the instruction from the server.
If someone can help me to solve this vexing problem, it is not hyperbole to say that
you would change my life!
Thanks so much in advance for any help one of you kind souls can provide!!!
Michael
I don't believe the iPhone comes with any built in speech recognition functions. Consider speaking to Nuance about buying and embedding one of their speech recognition engines. They have DragonDictate for iPhone, but they also provide a fair amount of other recognition engines that serve different functions. Embedded solutions is clearly one of their areas of expertise.
Your other path of pushing the audio to your server may be more involved than you expect. Typically this process involves end-pointing (when is speech present) and identification of basic characteristics so the raw stream doesn't need to be passed. Again, investigation into the speech recognition engine you intend to use may provide you with the data processing details you need. Passing continuous, raw voice from all phones to your servers is probably not going to be practical.