"JavaScript (sometimes abbreviated JS) is a prototype-based scripting language that is dynamic, weakly typed and has first-class functions. It is a multi-paradigm language, supporting object-oriented, imperative, and functional programming styles." From Wikipedia. ...
1
vote
1answer
275 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 ...
1
vote
1answer
393 views
User input in game loop
I am building a simple multi-player fly-around-a-3D-world game in Javascript/webGL/websocket (Chrome, Firefox mostly).
How should I handle and process user input?
My preliminary design (untested) is ...
4
votes
2answers
331 views
Where and how to promote an HTML5 game engine?
I've recently completed an engine, called Irenic.
Now, I was wondering, how could one promote it? The process surely is different than promoting a game, because a game can be played by almost anyone, ...
2
votes
1answer
221 views
Detect mouse click on a bezier curve's neighborhood
I'm developing a game in HTML5 and JavaScript using Canvas API for drawing graphics. I want to detect if the user has clicked on a bezier curve which has the line width of 20 pixels (something like ...
33
votes
7answers
1k views
Managing text-maps in a 2D array on to be painted on HTML5 Canvas
So, I'm making a HTML5 RPG just for fun. The map is a <canvas> (512px width, 352px height | 16 tiles across, 11 tiles top to bottom). I want to know if there's a more efficient way to paint the ...
17
votes
6answers
2k views
Essential knowledge for making HTML/JavaScript-based games
I was wondering if any experts out there could share the knowledge and resources of what is necessary to start making games with the latest HTML standards and JavaScript (or what some like to call ...
-1
votes
1answer
267 views
Best framework and technology for developing simple multiplayer web-based game [closed]
I want to develop an online browser game in HTML and Javascript, just like this one: http://play.typeracer.com/.
I am new to these technologies, so pardon me for any vague questions:
What should ...
4
votes
2answers
445 views
How to implement AI for fighting game
I built a 2D fighter yesterday.
The second 'player' does hardly anything. Actually, nothing. To be honest, I have never made a game before that had an opponent like this.
So my question is, how ...
7
votes
3answers
1k views
Javascript and PHP for real-time multiplayer?
I'm wondering if combining Javascript clientside with PHP/mysql serverside is a good idea for HTML5 real-time multiplayer (small scale) browser games?
My technical knowledge is very limited, and even ...
-2
votes
1answer
530 views
Cocos2D game engine javascript is too slow on mobile
i developed a game using cocos2D javascript that works fine on web browsers but when i run it on mobile ( iPhone 4s , android nexus) the FPS was dropped to 20 - 22 on iPhone (max) how to optimize it ...
1
vote
1answer
448 views
What is wrong with my Dot Product?
I am trying to make a pong game but I wanted to use dot products to do the collisions with the paddles, however whenever I make a dot product objects it never changes much from .9 this is my code to ...
5
votes
2answers
2k views
Realtime multi-player game design principles for Node.js
I've been reading the Valve article on multi-player networking which has been adapted from Yahn Bernier's 2001 paper called Latency Compensating Methods in Client/Server In-game Protocol Design and ...
1
vote
2answers
209 views
Sprite animation problem
I have this sprite I have to animate. The sprite is 7 images total but animation is 10 frames (2 positions are repeated).
The order I want to go through the frames is like this:
3 -> 4 -> 5 -> 6 -> ...
2
votes
2answers
682 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 ...
8
votes
2answers
1k views
Top down space game control problem
As the title suggests I'm developing a top down space game.
I'm not looking to use newtonian physics with the player controlled ship. I'm trying to achieve a control scheme somewhat similar to that ...
2
votes
2answers
390 views
Quaternions - how to limit axis?
Is there any possibility to limit quaternions to move only in x & y axis (like in Eulers- yaw and pitch, without rolling)? I's there any equation or something similar to do this?
Some example:
...
1
vote
3answers
619 views
What Javascript game engines are out there, other than Impact? [closed]
Does anybody know of a decent (meaning preferably free ;)) alternative to Impact? Any suggestions are very much appreciated!
8
votes
3answers
2k views
Entity Component System based engine
Note: I'm programming this in Javascript, but it should be language agnostic in the most part.
I am thinking about converting my engine to an ECS based one.
I get the basic idea (note: this is ...
0
votes
1answer
689 views
JavaScript rendering: Canvas or DIV?
I am planning on developing a multiplayer RPG (kinda like RuneScape, but don't worry, with a different gameplay) and i want to do this in the browser. Now before saying things like "A MMORPG is hard ...
-1
votes
1answer
127 views
Interacting with box2D objects
How can I interact with an object in box2d, I'm completely new to this so I have no clue what to do. The box is created like this:
bodyDef.type = b2Body.b2_dynamicBody;
fixDef.shape = new ...
0
votes
1answer
340 views
How do I do JavaScript Array Animation
I'm making a game but don't know how to do Array Animation with the png Array and game Surface that I made below. I'm trying to make it so that when the Right arrow key is pressed, the character ...
7
votes
2answers
646 views
What is the best way to handle simultaneous collisions in a physics engine?
I'm writing a 2d physics engine in javascript so that I can learn more about physics in video games. I have it working correctly for rigid body collisions, except for if any body collides with two or ...
1
vote
1answer
426 views
HTML5 Canvas Depth Sorting
I'm have problem with Isometric. I'm don't know how to name this "problem", but I'm show you some sceen what I get and what I'm need to get.
My code now drawing something like: ...
8
votes
3answers
1k views
Why is it a bad idea to store methods in Entities and Components? (Along with some other Entity System questions.)
This is a followup to this question, which I answered, but this one tackles with a much more specific subject.
This answer helped me understand Entity Systems even better than the article.
I've ...
1
vote
1answer
477 views
Easy way to do gravity in a simple game?
I'm looking for an easy, beginner friendly way to do gravity in a platformer.
I've looked into Box2D tutorials, but they all seem very complicated.
All I want is a class that takes into account if my ...
0
votes
1answer
91 views
Tilting a platform on its axis?
I'm wondering how I can tilt a platform on it's center/axis.
For example, if the player steps on the left of the center, it should tilt to that side like in this picture.
Can a platform like this ...
0
votes
2answers
176 views
Any social gaming services for JavaScript games?
I'm currently planning on building a HTML5/JavaScript game for the various platforms (Browser, iOS, Android, and WinMo7). I, obviously, would like there to be simple multiplayer (1v1, asynch), ...
6
votes
2answers
246 views
What is the standard way of delivering HTML5 games to portals and such?
Let me explain what I mean by "standard way of delivering"...
Think about Flash games sites. Flash games can be delivered as a single file, either hosted by the site, or, I guess, provided by someone ...
-1
votes
1answer
282 views
How do I make more bullets shoot in this game code?
I'm having trouble in the "Bullet.prototype.draw = function ()" section of this code below. I'm trying to fix it so that I can shoot more at a time instead of just one bullet like it is now. Thus, ...
4
votes
1answer
157 views
What is the optimal way for updating different entities in an engine?
EDIT: half of my question seemed to disappear, but thankfully, it was still in the clipboard.
When I say entities, I mean instantiations of various classes in my engine (example class: ...
4
votes
2answers
277 views
What would be the problems with using a singleton design pattern for my engine?
I'm desiging an HTML5 2D game engine in Javascript, and currently, I use the singleton pattern.
There is only one global object in the namespace called simply Engine. All other objects are ...
-3
votes
3answers
225 views
Game getting progressively laggier?
I have a small game in HTML5 that uses socket.io to communicate with a node.js server. Now my problem is that, ever since I did my last update on it it seems to have something "chunk up" in the ...
0
votes
1answer
125 views
javascript function with game engine
I have coded my main menu for the game in html/css and need the image buttons to function with the engine using JavaScript.
For example:
Skip (Enable) Which skips the menu when you come back to play ...
4
votes
2answers
482 views
Optimizing isometric drawing function
I need help optimizing my Draw(); function to draw only what is visible in the viewport. Currently I'm drawing the whole Map array in a diamond shape. How can I make my function store only what is ...
29
votes
20answers
4k views
Examples of good Javascript/HTML5 based games [closed]
Now that Flash is largely being replaced with HTML5 elements (video, audio, canvas, etc.) are there any good examples of web-based games built on completely open standards (meaning Javascript, HTML ...
6
votes
7answers
2k views
How long till HTML5 canvas becomes a viable game development platform?
So I have been working on web application. So invariably what it boils down to is making simple games which were previously based on flash or openGL. Now I know apple was moving away from flash ...
1
vote
3answers
947 views
How do I structure a 2D platform level?
I'm doing a 2D platformer but I don't know how they are usually built.
The approach I'm looking at is making it tilebased, with ground tiles on bottom row, then platforms on some places in "mid-air" ...
1
vote
0answers
225 views
Open Source HTML/JS game(s) with license that would allow embedding in my app?
I'm working on an educational app for kids. At the end of the sign-up process, the kids must wait for a confirmation from their parents in order to gain access to the app.
While they wait for this to ...
0
votes
2answers
552 views
Lighting effects with 2D sprites
I would like to know how to best achieve lighting effects with 2D.
I guess the only way is to make sprites of the area to be lit in specific colors?
Say I have a streetlamp, and around this place ...
1
vote
2answers
422 views
Multiple setInterval in a HTML5 Canvas game
I'm trying to achieve multiple animations in a game that I am creating using Canvas (it is a simple ping-pong game). This is my first game and I am new to canvas but have created a few experiments ...
1
vote
1answer
302 views
A* Start path finding in HTML5 Canvas
I'm trying implement A* Start path finding in my games(which are written with JavaScript, HTML5 Canvas). Library for A* Start found this - ...
0
votes
2answers
150 views
DrawImage doubt
What is the best option for animation in a game (HTML5 Javascript)? Put all the images in one png and change the background.
Or create each image separately and draw with DrawImage?
0
votes
3answers
318 views
Changing balls direction in Pong
I'm making a Pong game to get started with game-developement but
I've run into a problem that i can't figure out.
When trying to change the balls direction it doesn't change. This is the relevant ...
1
vote
1answer
371 views
How do I go from a simple html5 tic tac toe game to an online 2 player game?
I've been working on an online 2 player Tic Tac Toe solution for blackberries. both old and new. And so far I have html5 code that has a 3 x 3 layout that switches between x and o for the game ...
5
votes
3answers
608 views
Split a 2D scene in layers or have a z coordinate
I am in the process of writing a 2D game engine, and a dilemma emerged. Let me explain the situation...
I have a Scene class, to which various objects can be added (Drawable, ParticleEmitter, ...
4
votes
6answers
611 views
Should I refer to browser-based games as HTML5 games or Javascript games?
First of all, I know that there are alternatives to both HTML5 and Javascript, but I worded the question so generally ("browser-based") because if I had said "HTML5" or "Javascript" games that would ...
1
vote
1answer
151 views
Calculate travel time on road map with semaphores
I have a road map with intersections. At intersections there are semaphores. For each semaphore I generate a red light time and green light time which are represented with syntax [R:T1, G:T2], for ...
13
votes
8answers
4k views
How should I sort images in an isometric game so that they appear in the correct order?
This seems like a rather simple problem but I am having a lot of difficulty with it.
What should I do to properly sort images in an isometric game?
In a normal 2d top-down game one could use the ...
1
vote
1answer
137 views
Manually updating HTML5 local storage?
I'm just starting out HTML5 game developement (and game dev in general) and watching all the videos and tutorials available something has crossed my mind.
Everyone keep saying I should set the ...
0
votes
0answers
119 views
Existent js libs for tileset / map loading and rendering? [closed]
I'm building an rts style overhead tileset game with JavaScript (particularly using Ember.js framework as a base). The map is so large that I'd very much like to be able to load and render the board ...
