Questions tagged [html5]

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

Filter by
Sorted by
Tagged with
0
votes
0answers
19 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 ...
0
votes
0answers
29 views

Car physics: incorporating lateral forces for high-speed steering

I'm making a car simulation in Javascript and I am using this website to help me with the physics: http://www.asawicki.info/Mirror/Car%20Physics%20for%20Games/Car%20Physics%20for%20Games.html The ...
0
votes
0answers
61 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 (...
1
vote
1answer
47 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 ...
1
vote
2answers
52 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: ...
0
votes
2answers
56 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 ...
2
votes
1answer
67 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 ...
0
votes
0answers
48 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 ...
0
votes
0answers
27 views

Generate spritesheets on the server or in the client browser?

I want to make a browser game (using HTML5-canvas) where the user can create their own character with different clothing and stuff. I want to use something like the Universal LPC Sprite Sheet set. ...
0
votes
0answers
71 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 ...
0
votes
0answers
132 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 ...
0
votes
1answer
40 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 ...
1
vote
1answer
42 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*...
0
votes
1answer
42 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 ...
0
votes
0answers
12 views

Crossword puzzle [duplicate]

How do you make the keyboard arrow keys interactive so that when the user presses one of these it will move the cursor in that direction; I am working in html. Thanks Angela Jackson
1
vote
1answer
87 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
votes
1answer
531 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() ...
1
vote
4answers
151 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 ...
1
vote
1answer
89 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. ...
4
votes
2answers
124 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 ...
0
votes
1answer
68 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
votes
2answers
10k 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 ...
0
votes
1answer
79 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 ...
0
votes
1answer
517 views

Javascript-How to create a moving bullet animation from canvas

the bullet cant see to move at all ...
1
vote
3answers
111 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 ...
1
vote
0answers
126 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 ...
2
votes
1answer
353 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 ...
1
vote
1answer
209 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 ...
1
vote
0answers
11 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
votes
1answer
354 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 ...
1
vote
0answers
89 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 ...
1
vote
1answer
675 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 ...
0
votes
1answer
226 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
votes
5answers
81 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 ...
1
vote
2answers
410 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 (...
0
votes
2answers
86 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
votes
0answers
336 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
votes
1answer
300 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 <...
1
vote
1answer
2k views

unity webgl scale page on different sizes of internet browsers on pc or phone

unity only has a fixed resolution for building webgl. how can I make it changebale on users browser size change. there are some tutorials on the internet that doesn't match. there is only ...
1
vote
1answer
299 views

Implement resolution scaling HTML5 canvas

I'm building an hmtl5 real time game using socket.IO and node.js. If you've heard of the classic game "pong", I'm going for that. When you consider the gameplay for this game, it becomes apparent that ...
0
votes
1answer
393 views

WWW request does not connect using webgl platform

I use request like code below: ...
1
vote
0answers
180 views

Image looks GOOD on the editor but BAD (blurry) on the HTML5 export

I have a red bar that looks good inside Unity editor, but when I export the build it looks very strange. Any idea on how to fix this? The image on the left is the one with the strange/bad looking red ...
0
votes
1answer
207 views

Animation with drawImage vs canvas

I have a canvas that draws the letter 'a' with a box: ...
-1
votes
1answer
52 views

Phaser problem with .damage oneshots

I am trying to damage player or enemy when they collide.(enemy will be damaged when collided with bullet and player will be damaged when collided with monster) ...
1
vote
1answer
103 views

What audio method works across all web browsers and mobile for HTML5/JavaScript?

I have looked at a number of ways to trigger audio in HTML5/JavaScript, but each time I find something that might be workable, I find web browsers and mobile devices it doesn't work on at all. What ...
0
votes
0answers
138 views

HTML 5 multiplayer game with java server logic code duplication?

I want to make a browser multiplayer game with java server. I'm still in the design stage and i'm deciding what technologies to use. But i stumble upon the problem when the client need the same logic ...
6
votes
1answer
6k views

How can I use vibration of an iPhone for my HTML / Javascript game?

I'm building a web game. I'm trying to use the iPhone's vibration functionality. How would I go about doing this seeing I want to package and deploy this game to the App Store. Is there a secured way ...
0
votes
2answers
462 views

How to Structure my Database for a HTML turn-based strategy game?

I'm making simple HTML socket game that I want to record over time. It's a "risk" type game where individual tiles can be conquered, and the team with the most tiles is winning. As of right now, I'...
0
votes
1answer
106 views

HTML5 Multiplayer movement

I'm making a 2d multiplayer html5 game that needs client-side movement, collision etc. Client sends active cursors to the server (w,a,s,d), server updates cursors on all clients and clients handles ...
5
votes
1answer
156 views

Security concerns related to HTML 5 games

I would like to know if people could modify an HTML 5 game's code to harm either the server or other players whom visit the page. More specifically, whether someone could modify a simple game that ...