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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Staggered Isometric Map In Javascript

I'm trying to create a staggered isometric map in Javascript. var x, y, row, column, top, left, width = window.innerWidth, height = window.innerHeight, tile = {width: 64, height: ...
2
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5answers
2k views

free web library for leaderboards / achievements [closed]

I would like to know if there is any free leaderboard libraries for web games developed in HTML5/JS (as openfeint is for iPhone, Android) I found this http://www.appmobi.com/, but it seems the ...
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2answers
568 views

Good book/resource recommendation for HTML5 mobile game development?

The problem: I am taking an existing, 5 year old, html based MMORTS game and "HTML5-ing" it, "AJAX-ing" it and most importantly, optimizing for mobile devices like iPhone, android etc. For these ...
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1answer
353 views

Scale DIV with tiles

I am trying to create a repeating background. I have a main DIV with a grid of small 16x16 DIVs. I am trying to scale the main DIV in CSS; when the small DIVs simply have a red background color ...
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1answer
1k views

Canvas tile grid, hover effects, single tilesheet, etc

I'm currently in the process of building both the client and server side of an HTML5, canvas, and WebSocket game. This is what I have thus far for the client: http://jsfiddle.net/dDmTf/20/ Current ...
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3answers
477 views

What is better for the overall performance and feel of the game: one setInterval performing all the work, or many of them doing individual tasks?

This question is, I suppose, not limited to Javascript, but it is the language I use to create my game, so I'll use it as an example. For now, I have structured my HTML5 game like this: var fps = ...
6
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3answers
615 views

How can I tweak this A* search pathfinding algorithm to handle different terrain movement values?

I'm creating a 2D map-based action game with similar interaction design as Diablo II. In other words, the player clicks around a map to move their player. I just finished player movement and am moving ...
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1answer
388 views

How can I render player movement on a 2d plane efficiently?

I'm prototyping a 2d HTML5 game with similar interaction to Diablo II. (See an older post of mine describing the interaction here: How can I imitate interaction and movement in Diablo II?) I just got ...
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0answers
405 views

Good practices when optimizing HTML5/Javascript Game Developement [closed]

I'm just starting out as a game developer and have created a few crappy but playable clones of classic games like pong, and bomberman. Being self taught (bless the internet) I do this by just stuffing ...
3
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5answers
2k views

Html5 games, what is the standard dimension to use?

I am trying to make html5 games to be played on the browser(not offline apps), and I am trying to support the maximum number of platforms, hence I need to know what dimension should I use for the game ...
2
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0answers
253 views

Independent HTML5 Physics Game: Any Feedback? [closed]

I've been independently developing a physics-based HTML5 game. I haven't used any libraries or engines; all the code, including the physics, is my own. It is free for a while on the Chrome Web Store ...
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2answers
893 views

How can a NodeJS server be used from Game Maker HTML5?

I want to create a client-server game that runs on Game Maker HTML5-NodeJS. The NodeJS server will be an AI server - a bot that acts like a human opponent and plays against the human player at a ...
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2answers
1k views

Creating several instances of the same object, and selecting only one

I'm playing around with making a puzzle game, haven't done that much before I run into my first problem. I want to create a certain amount of the same object/function. But without hardcoding the ...
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5answers
911 views

How can I imitate interaction and movement in Diablo II?

I'm prototyping a simple browser-based game. It's played from a top down perspective on a 2d canvas. You left-click on a point on the map, and your character will begin walking to it. If you click ...
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2answers
580 views

Dirty 2D map rendering

I keep hearing people talk about "dirty rendering" when it comes to map rendering for HTML5. I've Googled and searched the GameDev about it but there isn't much about it. What exactly is it? How to ...
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0answers
253 views

Choosing a (browser) game environment [closed]

I apologise in advance if this post is something you've heard a million times already or seems like a trolling attempt. I just want some advice and I'm coming up short with my own Google searches. ...
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4answers
1k views

Making a startscreen for an HTML5 game?

How would I make a start screen for a game using HTML5 canvas? I'm not looking for something advanced, just the new game button and highscore link etc. The question might be stupid, but I've never ...
2
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1answer
158 views

How can I clear explosions in my function?

Hi I have a function to place bombs, and a for loop that places explosions on the tiles where possible. My problem is that I can't remove the explosions after a while. I've tried everything I can ...
3
votes
1answer
655 views

Any good smartphone simulators available?

I'm trying to find a good smartphone simulator to test HTML5 games on. Doesn't matter if it is only 1 phone or a library of phones, iOS or android. As long as it's as close as it can get to the ...
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4answers
3k views

Dividing up spritesheet in Javascript

I would like to implement an object for my spritesheets in Javascript. I'm very new to this language and game-developement so I dont really know how to do it. My guess is I set spritesize to 16, use ...
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1answer
343 views

Collision within a poly

For an html5 engine I'm making, for speed I'm using a path poly. I'm having trouble trying to find ways to get collision with the walls of the poly. To make it simple I just have a vector for the ...
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2answers
1k views

My game is just about finished! What do I do now? [closed]

I have an HTML5/canvas game just about finished and ready to launch. It's a 2d game in which you explore and disrupt a procedurally-generated landscape, crafting items and structures to survive. I ...
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1answer
427 views

How to schedule Render and Logic loops in browsers with RequestAnimationFrame?

Question derived from this tweet: @Vincent_Scheib, thoughts on using using two loops for a HTML5 game: one requestAnimationFrame for rendering, and one setInterval for logic?
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2answers
1k views

Drawing isometric map in canvas / javascript

I have a problem with my map design for my tiles. I set player position which is meant to be the middle tile that the canvas is looking at. How ever the calculation to put them in x:y pixel location ...
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2answers
993 views

How to draw a tileset using HTML5 canvas?

I have a tileset something like this: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 My tileset draw code looks like this: var image = new Image(); image.src = ...
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1answer
340 views

Where can I get people to test my game?

I've just finished making the core aspects of my HTML5 game. I have a server and all that, but is there a site where I can find people that would test my game? I figured that getting my friends to do ...
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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 ...
3
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1answer
3k views

Game 30% done on HTML5. Maybe it was a bad idea. Should I change to Unity3d? [closed]

I'm creating a 3d game on HTML5. It's 30% complete and the hard part is already coded. The server is on node.js.Now I'm realizing that maybe it was not a wise choice. This is because I realized: ...
5
votes
1answer
2k views

(Why) Should I choose Unity 3 or Cocos2d (or something third) for my app? [closed]

My colleague and me made an HTML 5 iPad game ( http://braille.gandzo.com/ ) and we would like to upgrade it, and our framweork is not enoguh, for what we want. Some of the things we would change are: ...
2
votes
2answers
1k views

Javascript Isometric draw optimization

I'm having trouble with isometric tiles drawing. At the moment I got an array with the tiles i want to draw. And it all works fine until i increase the size of the array. Since I draw ALL tiles on ...
2
votes
3answers
767 views

Is there a HTML/JS game engine/library that deals with things (HUD, menus, accounts, etc) other than the core gameplay?

I've been looking through the many HTML/Javascript game engines/libraries out there (many of which are found here https://github.com/bebraw/jswiki/wiki/Game-Engines). Most of them seem fairly ...
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2answers
559 views

How legal would it be to use some elements of the Half Life universe in my non comercial, indie game?

I'm planning to make a simple, HTML5 game, that would use some elements of the Half Life universe. Basically, it would be a 2D Portal clone, but it would have it's own story, and portals would be ...
2
votes
2answers
2k views

Resource loader for an HTML5 and Javascript game

I have made a type to shoot game using HTML5, Javascript and Ruby on Rails. Here is the link for the game Tweetraitor I wanted to make a loader for resources (sounds, images) when the game starts. ...
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2answers
314 views

What's the best way to generate an NPC's face using web technologies?

I'm in the process of creating a web app. I have many randomly-generated non-player characters in a database. I can pull a lot of information about them - their height, weight, down to eye color, hair ...
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votes
1answer
591 views

Framework to build scrollable map with item selection in JavaScript?

I need a mobile device to be able to scroll a large, static map image, and also be able to select PNG image "objects", like this: What would be the simplest method? HTML5, jQuery, Sencha Touch, or ...
3
votes
1answer
997 views

Converting cartesian geo-coordinates to isometric (real world map to game map)

I need to create an automated method to convert real cartesian, geo-coordinate data (such as roads and parks), into isometric coordinates as a game map view for use in HTML5 Canvas. Here is an image ...
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7answers
7k 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 ...
4
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2answers
627 views

HTML5 multi-player game data/event validation best practices

I'll start by saying that I am fully aware that this question might seem subjective at first, but I'll try and provide a specific test case scenario for it to be a clear question about validating the ...
3
votes
1answer
498 views

Animating DOM elements vs refreshing a single Canvas

A few years ago, when the HTML Canvas element was still kinda fresh, I wrote a small game in a rather "unusual" way: each game element had its own canvas, and frequently animated elements even had ...
3
votes
1answer
2k views

Optimizing HTML5 canvas transformed drawing in Javascript

I am trying to optimize my HTML5 game engine and have noticed that currently a majority of the time taken in the game loop can be taken when drawing transformed tiles. I think this is because each ...
4
votes
2answers
528 views

What technologies are used to develop games for tablets and iPhones?

What technologies are used to develop games for tablets and iPhones? Would Flash be commonly used? Is HTML5 capable of animation and interactivity, or would a game file simply be placed within HTML5 ...
2
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4answers
1k views

Cross platform development tool/platform for the modern indie game developer?

I'm a Flash developer, but I think it's time to think of other avenues. Ideally I want to be able to write once but be able to deploy to as many different platforms as possible, so iOS AND ...
2
votes
4answers
843 views

Best platform for puzzle game development on the iPad

I have a series of hidden object and puzzle games mapped out that I want to develop for the iPad and although I have written programs before, it's been a while. I've been trying to find the best ...
7
votes
1answer
824 views

Do you need resource manager for HTML5 games?

Usually, resource manager is needed for desktop/mobile games. But is it needed for HTML5 (browser) games? Resource manager's main responsibility is to make sure there is no clone of a resource in ...
2
votes
2answers
1k views

Javascript/html5 2d Canvas Context - Getting X, Y relative to canvas (opposed to transformed object)

I have scenario where there are several items on a the context stack and I need to get an x, y coordinate relative to the canvas itself. The situation is I am writing a 2D game in HTML5 and I want ...
2
votes
1answer
285 views

What client front-end options can I use to make a Facebook game?

I have been requested to make a port of an iOS game for Facebook. The game itself is fairly simple, it is a puzzle game using a 2d array for a grid with XML passed from a server for loading objects ...
7
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2answers
922 views

How to scroll hex tiles?

I don't seem to be able to find an answer to this one. I have a map of hex tiles. I wish to implement scrolling. Code at present: drawTilemap = function() { actualX = Math.floor(viewportX / ...
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votes
8answers
4k views

HTML5 mobile game development vs. native game apps

What is the current state of game engines, frameworks, libraries and conversions related to the HTML5 set of technologies (including CSS3 and JavaScript libraries such as RaphaelJS, Impact, ...
8
votes
1answer
1k views

Set sprite to face direction of mouse

I'm building a html5 canvas game and I need a way to get my sprite to face the mouse cursor. I have the X and Y co-ordinates for the sprite, and also the X and Y co-ordinates of the pointer. All I'm ...
8
votes
2answers
3k views

Is it possible to develop multiplayer games with HTML5?

I know HTML5 is great for web games, but I don't really know if it's possible to develop online games with multiple users, keeping everybody synchronized and handling logins, et cetera. Is it possible ...