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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How to turn a 3d camera (in HTML5 2D Canvas)

A few years back I started experimenting with 3d in canvas. Everything went pretty well untill I had to to turn the camera, I couldn't get it done. A few days back I just happened to stumble upon ...
6
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1answer
1k views

HTML5 Canvas Converting between cartesian and isometric coordinates

I'm having issues wrapping my head around the Cartesian to Isometric coordinate conversion in HTML5 canvas. As I understand it, the process is two fold: (1) Scale down the y-axis by 0.5, i.e. ...
6
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2answers
2k views

What would be a good game making engine supporting Vector images?

I want to create a simple platforming game, in which you are a square in a wonderful world. I would like this game to be able to be played in browsers. Basically I am searching for something similar ...
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1answer
639 views

How do I deploy my JavaScript/HTML 5 to desktop and smartphone?

I'm looking for framework that will let me code on JS for HTML5 canvas and then will let me deploy to desktop and Android. I'm not looking to learn new stuff like Haxe or Lua. I want to do it in plain ...
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1answer
490 views

3d js map rendering

In the past I've done a 2D tile map using HTML, CSS and Javascript. Now I have the task of creating a 3D version using the same technologies - think of it like a space map where all planets have x/y/z ...
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1answer
450 views

How to compute the 2D equations of 3D circular arcs?

I'd like to obtain these equations for the ellipses produced by the perspective projections of (3-dimensionally transformed) circles. This is useful for rendering in 2D contexts which provide curve ...
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1answer
739 views

Converting coordinate systems to/from an isometric game world

I have tried searching and reading for an answer, but the information I could dig up either didn't fit what I need or was in the form akin to "Just multiply the vectors with the inverse matrix of.." ...
2
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1answer
1k views

Shoot a bullet towards cursor - top down 2d

I am making a 2D topdown shooter game, in which the player's movement is controlled with WASD and gun with the mouse. I'm having a hard time figuring out how to update the position of the bullet as it ...
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2answers
1k views

Is it possible to convert file from Blender 3d to svg?

I want to build web game in html5 with canvas/svg. Can I convert/export file from blender to canvas/svg? Maybe via unity3d?
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1answer
1k views

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: ...
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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
587 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
360 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 ...
3
votes
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 ...
3
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3answers
494 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 = ...
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3answers
642 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
399 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
411 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 ...
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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
256 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 ...
0
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2answers
920 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
937 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 ...
10
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2answers
586 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
254 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 ...
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1answer
160 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
656 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 ...
2
votes
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
345 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 ...
22
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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
433 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
1k 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 = ...
3
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1answer
348 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 ...
2
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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
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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
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3answers
781 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 ...
0
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2answers
568 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
3k 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
318 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
600 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
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1answer
1k 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
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 ...
4
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2answers
635 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
505 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
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2answers
539 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 ...