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Questions tagged [html5]

HTML 5 refers to new web technologies such as high performance JavaScript engines, canvas 2D and WebGL, video and audio tags.

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1answer
21 views

Why does my godot game not take input in the browser?

My game works perfectly fine in godot and as a widows executable but when exported to html5, I can't move my character. The game is publicly available at https://ashir-rashid.itch.io/export-experiment ...
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1answer
42 views

In regards to real time turn based games, where should the turn handler be?

I'm currently developing a pool-like browser game. I'm stuck on where should I handle the turn changing, timer, etc. Currently, turn timer (i.e. 15 seconds left to do action, then turn will change) is ...
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1answer
72 views

My HTML Canvas went blank

I tried to draw Mario Sprites in my HTML Canvas, but it always went blank. Anybody knows why? ...
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1answer
23 views

I can't clear the paint image in my Canvas

I'm trying to make the Mario move, but somehow it leaves traces behind, can anybody help??? ...
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0answers
14 views

Dynamic Content Inside An HTML5 Game

Is it possible to have dynamic content (images, text, icons, color codes, etc.) display inside of an HTML5 game based on parameters passed via URL? For example, companies often use one website ...
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0answers
61 views

html5 canvas isometric tile map

i need a help i have an Isometric Staggered tile map in Tiled (mapeditor.org). 100x100 tiles, 94x54px, 9447x2727px. total. How can i make this in html5 canvas ? var context = document....
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0answers
31 views

Web Game Security - AntiBot

I'm going to develop a real-time browser game using NodeJS in backend for a fast WebSocket, but I'll both prevent bots and other cheats, so my frontend JS might be very advanced. I'm experienced with ...
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1answer
75 views

How can I convert an html5 web game to an android app?

I have already made an html5 game and it is in service. I want to service this at Android app too. I know little about Java or Kotlin, so I think the least risky way is to use a webview. There is ...
2
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1answer
38 views

Procedural vs Event Driven Paradigm Clash in HTML5

I've been writing some console-based games in python and got in the habit of having a "mainloop" that looks something like this (if it were ...
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1answer
101 views

How to get the address of a nearby square on a chess board?

I'm making a chess game from scratch and I got stuck. So far I have all my figures placed, I have the positions set, I've already done the collision detection and everything. When I click the figure ...
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0answers
18 views

Javascript: Eventlistener 'keydown' not registering all keys pressed when holding down other keys [duplicate]

Sollution provided in the comments. The issue is that my keyboard has what is called ghosting issues, this means it doesn't support some key combinations when pressed together. When the user holds 's'...
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0answers
96 views

Godot speed up mobile HTML5 Export GLES2 load time

I got a small Godot project that should be played on mobile devices, however the load time of a GLES2/ HTML5 export project of Godot takes 20+ seconds to load from the server. To decrease the load ...
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0answers
39 views

Catch blocks while dodging other elements game

I'm working on this game where the user gets points for catching the right falling colour block. If the user catches the wrong colour block they will loose the game. For ex: I assign the user to ...
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0answers
44 views

Abstraction for dialogue and quests in web game

I'm not very experienced with web languages, but I know a little bit of JavaScript. I'm working on creating a text-based rpg in HTML and need a way to modify dialogues for main story or quest ...
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0answers
43 views

Unity Help solving Uncaught Abort on HTML5 Build

For some reason there is a Invoke that is triggered when a button is clicked that causes my game to crash. Any idea how I can sort this out? I have plenty other Invokes and none has given problems. I ...
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0answers
37 views

object position handling for multiplayer a game

I am creating a multiplayer HTML game which focuses on manipulating planet trajectories with gravity points. I am creating bunch of planets with random initial velocity and random direction and i am ...
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0answers
174 views

Moving player one tile at a time (Javascript)

I've been watching this tutorial and found the code works flawlessly. Although, there is something he doesn't cover in the video. How to move the player one tile at a time. Every tutorial I've found (...
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1answer
56 views

Using a setTimeout to Jump

I am trying to make a jump function. I am making a game in html5 canvas with Javascript. I have gotten the player to move. When making the jump function I decided to use a timeout to reverse the ...
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2answers
80 views

Select Neighboring X or Y Tiles

I have a randomly generated set of tiles, and I am trying to select neighboring x or y tiles to perform functions on them based on if they are a certain value of tile, like so: ...
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2answers
158 views

How to get projectile direction vector in a 2d grid?

I am having trouble figuring out how to trace the path of my projectiles in an Asteroids clone. Currently the ship is locked to the center of the screen and can be rotated a full 360 degrees. I know ...
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1answer
184 views

How do I rotate individual shapes on an html5 canvas?

So I am doing a basic Asteroids clone as an intro to HTML5 canvas. I want to be able to rotate the main player while leaving the other objects on screen alone. Currently I am using transform and ...
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0answers
65 views

Using dom elements for game interaction - slow performance

I have a need for my html5 game (using melonjs) to allow users to click tile areas on the map. The idea is it will show a css styled hover area. The browser tested is chrome. I could do this natively ...
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0answers
109 views

libGDX/HTML5 game sounds doesn't work on iPhone

I have a libGDX/HTML5 project that works well on desktop browsers, but on mobile browsers it has problems. I can have some sounds on Android browsers (not perfect) but on iPhone browsers it doesn't ...
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1answer
1k views

How to Play YouTube Videos Within Asset Store for Unity

On every computer I've ever tried to use Unity, the Asset Store seems incapable of showing the YouTube video previews of assets. It always claims my "browser" does not currently recognize any of the ...
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1answer
59 views

Can a .exe file ported from a program like NW.js or Electron be put console stores?

I'm early in development working on a game in HTML5/JavaScript canvas, and I wondering if porting the game with some HTML/JS to .EXE converter would allowed it to be posted on consoles? I think it ...
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1answer
53 views

Is there a way to automatically group tiles in a A* pathfinding grid to find the largest areas?

I'm making an RTS game using html canvas. I've made a program that randomly generates levels in order to test my pathfinding script. it divides the pathable blocks into squares so that you can apply A*...
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1answer
46 views

Canvas Infinite Map: How to have reappearing objects at static X,Y even when looping

I made a html canvas example of an infinite scrolling map with objects in static places. As you can see in the Fiddle below, when you move left with the Arrow Keys, you can see that the map does not ...
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1answer
90 views

What should i use as a board for my game? [closed]

I'm a beginning programmer and i need to make a game. The rough idea revolves around fleets fighting in turn based battles while you control your factions resources and manpower. The original concept ...
2
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1answer
2k views

Why are my animations flickering?

My animation is supposed to be used in my physics project I am making. I am using 10 millisecond setInterval() and setTimeout() ...
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4answers
411 views

How to improve load times of audio files without loosing too much quality for HTML5 game?

I'm creating an HTML5 game. We have high fidelity composed music, in the format of wavs and mp3s— some ...
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1answer
193 views

HTML5 game pases when you go to another tab

I'm making a simple game and I use requestAnimationFrame. Now the problem is that each I change to another tab the game pauses and when I return the game continues. ...
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2answers
135 views

Implementing multiplayer aspect of a simple HTML5 game

I've been thinking about this a lot. I am trying to implement a simple multiplayer game but I have difficulty figuring out how to "share the scene". For example, there are non-player entities like ...
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1answer
182 views

Why can't I load images in processing.js and let them be dynamic?

I can't easily load images. I can only render an image once unless I put this: <img src="images/papermario.png" hidden></img> in my html. I also still ...
2
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2answers
26k views

HTML5 games: play() failed because the user didn't interact with the document first

I'm creating an HTML5 game using MelonJS game engine. Before I load the game, I have a simple pre-login page with a Splash and background music. This page has no need to load the game engine or game ...
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1answer
89 views

online game, NPC monster death and hit detection to gain experience points

I'm doing a simple idle game, HTML5 client and Node.js server, but I'm making it online, where the client talks to the server (websockets) and all the logic is in the server (I want to prevent ...
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1answer
1k views

Javascript-How to create a moving bullet animation from canvas

the bullet cant see to move at all ...
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3answers
220 views

Draw the HUD just once on the canvas

I am not able to draw only one HUD of my game on a separate canvas, so I do not have to redraw it to each frame, I have four functions, init(), render(), loop() and drawHUD(): init() is my function ...
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0answers
203 views

Converting 2d cartesian coordinate-based map editor to rendering isometric view

I have been working on a 2d html5 canvas map editor. It is tile based, and originally it was just a top-down view on a grid of tiles (or empty spaces). I decided I wanted to convert it to render the ...
4
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1answer
559 views

HTML5 Canvas - Drawing with Floats

I'm trying to implement a game where you have car moving along a line in HTML5 Canvas. Using a little bit of trigonometrie I managed to get the right x and y coordinates to add to the coordinates of ...
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1answer
304 views

Javascript/HTML5 canvas: Integrate scrolling tilemap with map server

I am playing around adapting the example code at Mozilla Dev Network: Square tilemaps implementation: Scrolling maps to fit with a server I wrote myself. There's a link to the original source code at ...
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0answers
13 views

How do I fix these touch events? Events respond if there are 2 fingers but not 1

I am making a simple game of mine mobile-friendly. The goal is to: Make character walk if a touchstart event is sensed on right half of screen. Stop character if a touchend event is sensed on the ...
0
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1answer
545 views

How does the double-buffered canvas know when to swap the buffer?

How does the HTML5 canvas know that all the drawing operations are complete and it's time to swap the buffer ? Program can have multiple draw calls at different places so how will it know when is the ...
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0answers
108 views

Libgdx animation for HTML5

I'm working on my first html5 game with libgdx, it's a platform android game that I made a while back that I now want to host on my website. Everything has been going okay till I got to animating the ...
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1answer
1k views

WEBGL antialias false to pixel art low resolution

I know this issue maybe repeated and seems to be very common but I searched first and did not find anything concrete. I am doing some test and playing around with pixijs. I created an stage 320x180 ...
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1answer
382 views

Mobile screen resolution and canvas size

I'm making a HTML5 game using the canvas. I was building it for my iPhone 6 which state a resolution of 1334x750 pixels but also a resolution of 667x375 points. I notice that my canvas need to match ...
3
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5answers
153 views

Turning a simple HTML5/JS single-player game into a multi-player one

CONTEXT: I am currently developing the front-end/ client of a simple browser game using HTML5 Canvas/JavaScript. In the future, I would like to add a multi-player dimension to it, most likely using ...
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2answers
481 views

Detecting overlap with Phaser P2 physics

In a 2D platformer, I'd like to implement a ladder. I have collision working between the player and ground tiles. Now I would like to be able to detect when the player walks through a ladder tile (...
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2answers
102 views

How to access files in Chrome

So, I am making a game-like html file that needs to load a few assets. I have a loading animation which uses the timing of the loading files to create a progress bar. This all goes fine. The files all ...
2
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0answers
428 views

Persistent realtime game authentication (JWT, Passport)

Context I am building a MMO game in HTML5 with canvas. I use NodeJS on server & JS from scratch on client. I also use socket.io to manage realtime. The game is persistent & each player keep ...
3
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1answer
437 views

DrawImage problem adjacent sprite?

Context I'm building a 2D game from scratch in JS. I'm drawing the map by using rpgmxp tilesets for the moment just to have some resources : Each tile is 32*32 pixels. I'm using canvas API with <...

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