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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2answers
19 views

HTML Multiplayer and Hiding Information

I'm in the process of conceiving a multiplayer web-based game of sorts and was looking into different ways of achieving this. Instead of using PHP/MySQL/AJAX like I'm used to, a lot of sites are ...
4
votes
5answers
312 views

How do I prevent receiving data from the network from dropping rendering frames in a multiplayer game?

I'm building an HTML5 massively multiplayer online game. I've been working on this project for awhile, but am having some trouble sorting through a couple of performance issues. Since this is a ...
0
votes
1answer
101 views

How to “piece together” an image in code, to render later?

I want to make a game in Dart and have decided to use the available port of the JS Phaser game engine. This will be my first time really making a game involving graphics so I guess I'll have a lot to ...
-1
votes
2answers
505 views

How do I make a sprite blink on an HTML5 canvas?

I'm thinking of the flashing effect many games have when a character gets hit and takes damage. Something like overlaying a lighter color on visible sprite pixels for a second.
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votes
2answers
92 views

Collision detection between draggable object and world objects?

I have a game I'm making in Javascript that will involve combining items by dragging and dropping them onto each other. Think Alchemy or similar. So far, so good, but I hit a snag while trying to ...
1
vote
0answers
18 views

Call a native mobile API in Construct 2?

It is possible to use mobile api features in a Construct 2 game (html 5 / js engine) ? I didn't find anything about that on the net, unlike anothers game frameworks like Corona Entreprise or ...
0
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0answers
7 views

CocoonJS draws shadow around tiles

I am using CocoonJS launcher on iOS for a simple tiled game. Calling canvas drawImage for tiles adds a shadow or ghost border around tiles. See this screenshot: ...
2
votes
2answers
2k views

Efficient collision detection - tile based HTML5/Javascript game

I'm building a basic RPG game and I'm looking at collisions/pickups etc now. It's tile based and I'm using HTML5 and Javascript. I use a 2D array to create my tilemap. I'm currently using a switch ...
4
votes
2answers
863 views

HTML5 game fps render lag

I am currently creating a flappyBird-like HTML5 game using Proccessing.js You can see current work here: http://files.tips4design.com/flappySlothRelease/ The problem is that even though the FPS is ...
11
votes
7answers
8k views

To canvas, or not to canvas, when building browser-based games?

Background: I have extensive development background, but the last time I coded a game was many years ago. My Javascript skills are quite limited, and I intend to improve them by building a simple game ...
1
vote
1answer
54 views

How are CSS and WebGL coordinates related? [closed]

I'd like to build a simple framework which rendering combines web page DOM elements with WebGL, such that they're manipulable in the same coordinate space. How does the plain CSS coordinate system ...
-1
votes
1answer
66 views

Centering camera on player div

I've been making a roguelike-style game in HTML5 without using canvas (only divs) with pure JS (fiddle!). I've been trying to enlarge the tile size (font size) while keeping the player centered within ...
1
vote
0answers
91 views

In Phaser, how should I be managing state? [closed]

I'm quite new to Phaser and JavaScript really confused about state management. Phaser has lots of documentation and info on the net, but everyone seems to be doing it a different way. An example: ...
-1
votes
2answers
878 views

Javascript - create a new bullet instance every time a user event is triggered

Basically I have a function that I need to create an object of every time the user presses space(event listeners not shown here). function arrow(){ this.x = playerXPos + 40; this.y = ...
-1
votes
2answers
107 views

Where to start developing a 2D puzzle game [closed]

I would like to start developing a 2D puzzle games, much like sudoku for example. I would like to publish it on Facebook and on gaming websites, like miniclip, agame, kongregate. The game should have ...
2
votes
2answers
306 views

How do you capture keyboard and mouse input for an HTML5 game?

Is there an accepted method for capturing player input in HTML5 games? I have seen several methods, and the browsers seem to be in varying states of implementation; On MDN they tell you not to use ...
2
votes
1answer
105 views

How to implement user friendly screen panning on 3D HTML canvas for RTS game

How can I get RTS map panning like how it was done in C&C red alert (with the mouse at the edge of the screen moves the screen in that direction) with a Babylon.js RTS game in the html canvas? ...
2
votes
1answer
154 views

How can I create 2D, sprite-based reflections in HTML5 Canvas?

I'm trying to create simple reflections in a 2D, sprite-based game using HTML5. I'm looking to recreate an effect like the one you'd often see in GBA games, such as Pokemon Emerald and Mother 3: ...
1
vote
2answers
447 views

IsoMetric Map draw: sort with Topological Sort, Z-Buffer and anchor point

I'm writing an IsoMetric renderer for my html5 isometric game. The isometric renderer should be able to render objects with floating point coordinates. DEMO: http://matt93.altervista.org/game/ ...
0
votes
1answer
182 views

Rotate arrow on canvas

I need to draw a flow dynamically based on some user choices. In that flow I want to draw the choices (blue circles with number) and the directions of that choices (line and arrow). For example: node ...
8
votes
4answers
6k views

Best technique for drawing isometric tiles

I'm thinking about making a simple isometric game with HTML5 Canvas, and wondering what's the fastest way to render the tiles. Since the tiles are diamond shaped, but drawImage draws rectangles, I ...
10
votes
5answers
4k views

Poor performance in android when running APK, runs fine in browser

I have created a small game project in HTML5 using Phaser engine (tried both 1.1.5 and 1.1.6). Then to port it to mobile platform, used Phonegap/Cordova for Windows Phone 8, Android and iOS. In my ...
-1
votes
3answers
191 views

Aspiring game dev - Is HTML5 worth it? [closed]

I'm a college student who is fairly familiar with JS & PHP and have made a couple web apps for my previous job. I'm looking into working with Unity for my future game projects, but there is a bit ...
1
vote
0answers
117 views

HTML5 game : Secure way of saving score [duplicate]

I wrote a pretty basic game for colleagues to play : the player shoots on an enemy which has 50 lives while other smaller enemies pop randomly on the screen. The goal is to kill the main enemy as fast ...
1
vote
1answer
99 views

Algorithms for positioning rectangles evenly spaced with unknown connecting lines

I'm new to game development, but I'm trying to figure out a good algorithm for positioning rectangles (of any width and height) in a given surface area, and connecting them with any variation of ...
0
votes
1answer
163 views

How do I add my phaser.js game to my pre-made web page?

First off, it's my first time doing a little bit of game development, and I have no idea of the normal flow of making a game, let alone a browser game. My game uses the phaser framework of HTML and ...
1
vote
0answers
153 views

A problem with collision when a sprite changes size (Phaser framework) [closed]

I have a sprite in my game that changes size at certain points in the game. It changes size via the sprite.body.setSize method. Unfortunately, it seems that the sprite is unaffected by objects that it ...
2
votes
2answers
300 views

How do I make a scrolling map within an HTML5 canvas?

My project is a 2D tactics game with a square grid. It's all HTML5/Javascript/JQuery. I have been able to draw out the grid and have a system where I can load different maps with tiles where units ...
1
vote
0answers
199 views

Phaser noob: Why is my Phaser game jittery? [closed]

I'm just getting started with HTML5 game development, and I'm very impressed with the quality of Run Pixie Run and bunnymark in both desktop and mobile, so I've started making a game using Phaser ...
0
votes
1answer
200 views

No sound in android using Phaser [closed]

I have developed a simple game using Phaser. It's work perfect on ios webkit, but on android there is no sound. What causes this problem on one platform but not the other? We are using this code to ...
1
vote
0answers
200 views

Creating Top-Down Race Track From A List Of 2D Points [duplicate]

My final year project for university is based on the idea that a two-dimensional top-down multiplayer racing game can be made using Google Maps to dynamically generate race tracks. The idea is that ...
4
votes
4answers
5k views

Open source level editor for HTML5 platform game? [closed]

A natty GUI editor is very helpful to create level map. I want to use some open-source choices rather than build my own from scratch. I found Tiled Map Editor but it doesn't work for what I want. ...
0
votes
1answer
72 views

Set a different animation rate for moving player NOT using a sprite

I am trying to start making a simple game using HTML5 with a canvas and some JS. I have a player whose movement I am comfortable with, but the rate at which the player animates when it moves is too ...
1
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0answers
132 views

Shadows in html5 canvas game

I'd like to ask for reference. I met an article about how to cast shadows in games. I'm using html5 canvas (currently without webgl) with javascript for my projects. The article mentioned above is ...
0
votes
1answer
83 views

How do I cut off the edge of an image in a 2D JavaScript Array?

OK, I am trying to make a game that is a little bit like SimTower but utilizing HTML5 (particularly the canvas element) and JavaScript with a little CSS. I have ran into a couple of little problems ...
0
votes
2answers
87 views

How to access bottom canvas layer in HTML?

I have such html: <div id="main_window"> <canvas id="canvas_hex_logic" width="200" height="100"></canvas> <canvas id="canvas_ground" width="200" height="100"></canvas> ...
1
vote
0answers
148 views

Simple track method for 2D car game? [closed]

I'm a new programmer and I am trying to make a 2D car game on an html5 canvas with javascript and JQuery. I have got the basic car motion down, check it out here: ...
3
votes
2answers
1k views

Displaying a particular sprite from spritesheet using Phaser

I am trying to make a card game using Phaser, the HTML5 JS framework. Because I'm a terrible artist and can't design my own, I'm using a free spritesheet of playing card images I found online. The ...
9
votes
4answers
4k views

How to bundle a HTML5 JavaScript game as native Windows application?

As the web browsers evolve, HTML5 game development with JavaScript, Canvas, webgl is increasingly becoming popular. The advantage of web-based games compared to native apps is that they run on ...
2
votes
1answer
591 views

How to handle the different frame rate on different devices?

I am not quite sure how frame per second works on a web page. I have a Canvas game that involves in moving an image from point A to B, and measuring the time elapsed. The code can be as simple as: ...
0
votes
1answer
56 views

How to manipulate browser pixels on different mobile devices

I'm creating a board game using HTML5, CSS3 and JavaScript. It's working fine on Desktop browsers properly. But when i load it on Windows phone it's not behaving properly. The resolutions and the game ...
-1
votes
1answer
121 views

How to deal with extremly big numbers in javascript? [closed]

I am making a idle game like http://www.clickerheroes.com/ . I am doing it using createjs html library(doesnt matter). Anyways what i want to know is how i can deal with extremly large numbers that ...
1
vote
0answers
178 views

RPG game engine HTML5/javscript [closed]

I am planning to build a 2D RPG game (Zelda style). I am looking for a game engine that has the following features: Map editor to create maps (preferably orthographic grid), with solid objects, ...
0
votes
0answers
81 views

Balancing fight script in Text Based Javascript Game

I'm working on a little text based javascript game and I've been using chromes Javascript console for the output. The 'game' works off a series of methods written into an object called Player created ...
0
votes
3answers
487 views

Add a Countdown Timer that increments in JavaScript and resets per level(Resovled)

I am currently developing a Simon says type game using jquery and javascript. I have linked a fully copy of the game on github Github download and unzip to see the game fully ...
-2
votes
2answers
2k views

Is there a portal dedicated to HTML5 games? [closed]

Just to get something straight; by "portal", I mean a website that frequently publishes a certain type of games, has a blog, some articles, maybe some tutorials and so on. All of these things are not ...
0
votes
1answer
50 views

Get speed from vector using box2d and javascript

I need to find the speed of an object in a game. The game is made in HTML5 with jquery and jquery.box2d. For this I can use these methods: GetLinearVelocity().x; GetLinearVelocity().y; I'm then ...
1
vote
1answer
182 views

How do I procedurally create a directional light cone with an HTML canvas?

To create a directional light effect, I want to draw this kind of transparency mask on an HTML canvas (using context2d): I also want to be able to generate such a mask dynamically. I've tried using ...
-2
votes
1answer
4k views

How to make background to stage in kineticjs

var stage = new Kinetic.Stage({ container: 'container', width: 490, height: 300, }); var layer = new Kinetic.Layer(); I want to make a default image to a stage to be the ...
0
votes
1answer
142 views

What is the speed difference between cross platform HTML5 games and native mobile games? [closed]

Microsoft is advertising and promoting cross platform HTML5 game development. I am thinking of creating a simple 2D side scroller game and I am trying to decide what engine should I use for creating ...