14
votes
What to do when my game is rejected by CrazyGames?
From the CrazyGames Developer FAQ, under the heading Uploading my games:
Can I submit a rejected game again?
Only if you have improved your game and it complies to our requirements.
One thing that ...
- 13.3k
11
votes
Accepted
HTML5 games: play() failed because the user didn't interact with the document first
There is a good reason for this precaution: Users usually don't expect audio from websites. They get really angry when they load a website, and an audio advertisement blares at them at full volume. ...
- 123k
7
votes
Accepted
How can I use vibration of an iPhone for my HTML / Javascript game?
As you have found out, the W3C Vibration API is not supported in the iOS Safari browser (as reported here: https://caniuse.com/#feat=vibration).
However, you've pointed out that you plan to package ...
- 186
6
votes
What to do when my game is rejected by CrazyGames?
I just saw your game, and no offense, but it looks like it is subpar quality compared to the other apps on the site.
Off the top of my head, I can list several points that may be fundamentally wrong ...
- 61
3
votes
Accepted
online game, NPC monster death and hit detection to gain experience points
When you want a cheating-proof client/server game, then you need to handle all game mechanics which are worth cheating on the server.
Don't send "Player X hits enemy Y for Z damage". Just send "...
- 123k
3
votes
Accepted
WWW request does not connect using webgl platform
When you look into your browsers error console, you will likely notice an error message like this:
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http:/...
- 123k
3
votes
Accepted
WEBGL antialias false to pixel art low resolution
Helped me in html5gamedevs forum.
Solution: The scale mode of the texture needs to be set to nearest.
You can either do that on a texture by texture basis via the scaleMode
property, or change ...
- 141
3
votes
How to improve load times of audio files without loosing too much quality for HTML5 game?
When you take an audio clip which is already encoded in a lossy compression format and then re-encode it again with a different lossy compression, then any compression artifacts will accumulate and ...
- 123k
3
votes
Accepted
How to get projectile direction vector in a 2d grid?
To find the unit vector from the angle you want to use cosine(angle) for the x-component and sin(angle) for the y-component. The angle must be in radians. You can convert from degrees to radians by ...
- 56
3
votes
How can I convert an html5 web game to an android app?
Your first step should typically be to simplify the app down to its simplest working version. Gut everything that is causing the app to fail to run on the new platform (comment it out OR put in mock/...
- 30.4k
3
votes
Accepted
In regards to real time turn based games, where should the turn handler be?
The general rule of thumb for handling multiplayer games is that any game mechanics which can be handled on the server should be handled on the server. There are two reasons for that:
The less the ...
- 123k
3
votes
Accepted
How can I protect against a cheater changing variables on the client?
This won't prevent all cheating but at least will make it harder for the average cheat engine/ change variable hack. Follow the simple advise: Don't trust the client.
Now what does that mean? Usually ...
- 4,692
2
votes
How to rotate an image on an HTML5 canvas, without rotating the whole canvas?
Based on Luis Estada's answer, I created rotateContext function to rotate images and other shapes:
...
- 121
2
votes
Accepted
unity webgl scale page on different sizes of internet browsers on pc or phone
change the HTML as documented here. You can choose either one of the defaults or create your own template.
According to those docs you create folder in Assets ...
- 850
2
votes
Implementing multiplayer aspect of a simple HTML5 game
I remember struggling with the same thing actually and here it is. I figured it out not long time ago. I will use the rotating triangle as an example.
The server is the one that needs to figure out ...
- 269
2
votes
HTML5 - check if font has loaded
The JavaScript FontFace class is (as of July 2020) still a working draft, but already supported by all browsers except (as usual) Internet Explorer.
It can be used to load a font via JavaScript and ...
- 123k
2
votes
How to improve load times of audio files without loosing too much quality for HTML5 game?
I will assume that you have exhausted all that may come from encoding and compression.
First off, load only what you need next, use a load scene when appropriate.
Now, what you probably want is to ...
- 28.2k
2
votes
Accepted
How to get the address of a nearby square on a chess board?
It looks to me like what you really want is a 2D array for managing your board state, which in JavaScript you can accomplish with a nested array.
Your x & y coordinates stay as plain integers ...
- 140k
2
votes
Why does my godot game not take input in the browser?
Cause of the problem: I have two scripts named p2.gd and p1.gd inheriting from a base player class. I had not named the base class. So, my p1 and p2 scripts contained references to player.gd in terms ...
- 31
2
votes
Accepted
What is the best way to store level data in HTML5
There is no "best" way. Only the way that works best for your game.
But loading data from files via fetch at runtime is certainly not the worst idea. ...
- 123k
2
votes
How to port a JavaScript game to Nintendo Switch and PlayStation 5?
"How to translate JavaScript to C++" is a bit of an X-Y Question so I'm going to answer what you are actually trying to do, how to run a JavaScript game on Nintendo Switch / PlayStation 5.
I'...
- 8,504
1
vote
HTML5 game pases when you go to another tab
Separate your game's code into logic code and drawing code.
Put the logic code into a function which you execute at regular intervals with SetInterval. Intervals ...
- 123k
1
vote
Accepted
Why can't I load images in processing.js and let them be dynamic?
You cannot load and use images from other domains with HTML5 canvas. Make sure to serve your images from the same domain/server as your processing code. Alternatively, enable cross origin access on ...
- 251
1
vote
HTML5 games: play() failed because the user didn't interact with the document first
Please go through https://developers.google.com/web/updates/2017/06/play-request-was-interrupted
if you need additional info.
To load the track
...
- 111
1
vote
Javascript-How to create a moving bullet animation from canvas
You need to update the bullet's position each frame. So you should add an update function to the bullet constructor. And in it, update the ...
- 386
1
vote
Accepted
Draw the HUD just once on the canvas
Building on your answer, you definitely need to preload all your resources before even starting the game. So your process would be
preload_assets ==> Start_game
Here's an extract from this great ...
- 386
1
vote
Draw the HUD just once on the canvas
I found the error, the image was being called in drawImage() before it was loaded, unfortunately I did not receive any error that could inform me of this. But I did work by changing the function to:
<...
- 289
1
vote
Turning a simple HTML5/JS single-player game into a multi-player one
Turning a game developed for singleplayer into a multiplayer game when it was not designed for that from the start can be extremely difficult, both regarding software architecture and regarding game ...
- 123k
1
vote
How does the double-buffered canvas know when to swap the buffer?
In HTML5, the browser lets you know when it's ready to paint the next frame via requestAnimationFrame. Usually, your "draw" calls happen within this callback.
In ...
- 14.9k
Only top scored, non community-wiki answers of a minimum length are eligible