"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. ...

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1
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2answers
190 views

Best way to do “cutscenes” [closed]

I'm curious about the best way to display cutscenes in canvas. When I say cutscene I mean something like a static image fading from one to the other. Would it be best to use a timeout for a certain ...
3
votes
2answers
856 views

HTML5/JS - Choppy Game Loop

I have been experimenting with HTML5/JS, trying to create a simple game when I hit a wall. My choice of game loop is too choppy to be actually of any use in a game. I'm trying for a fixed time step ...
0
votes
1answer
85 views

Variable number of GUI Buttons

I have a generic HTML5 Canvas GUI Button class and a Scene class. The Scene class has a method called createButton(), which will create a new Button with onclick parameter and store it in a list of ...
4
votes
5answers
2k views

What would be a good way to implement/render a 2D tiled map for a browser game?

I coded a a little RPG in ruby and I used an array to contain the map squares. The elements of the array (which defines the X coordinates) are arrays themselves whose elements defines the Y ...
0
votes
0answers
194 views

JavaScript 3D space ship rotation

I am working with a fairly low-level JavaScript 3D API (not Three.js) which uses euler angles for rotation. In most cases, euler angles work quite well for doing things like aligning buildings, ...
0
votes
1answer
123 views

Why does my goblin only choose a walk direction once? [closed]

I'm working on a simpe 2d canvas game that has a small goblin sprite who I want to get pathing around the screen. What I originally tried was a random roll that would choose a direction, the goblin ...
0
votes
1answer
135 views

Isometric displaying two different images in different positions

I'm creating a simple Isometric game using HTML5 and Javascript, but I can't seem to get the display to work, at the moment i have 9 tiles that have X and Y positions and the player has a X and Y ...
6
votes
1answer
207 views

How Do Shapes (Rectangles) Work in Quad Trees?

I've been told that a quad tree is the ideal data structure for my game, but I'm having trouble understanding how exactly shapes work within quad trees. I'm doing this in JavaScript, but I think ...
4
votes
3answers
2k views

List of 3D libraries based on WebGL [closed]

Is there a up-to-date list of WebGL libraries or articals with comparison? Until now I heard only three.js and GLGE.
0
votes
1answer
389 views

Am I doing this node.js game loop wrong?

I have 2 arrays of JSON objects, actions and game objects. At any time a user can make a request from the client which can add an action to the actions array. I have a setInterval(function(){ }, ...
0
votes
2answers
189 views

HTML5 Canvas Parsing image into tileset while preserving transparency

I'm trying to import a Tiled Map Editor JSON file into my HTML5 canvas game but I'm having trouble with separating out the tileset image into separate images while preserving the transparency. ...
1
vote
1answer
121 views

How can I structure my ASCII terrain object?

So I have this object which represents a simple ASCII "overworld". Note the code is broken, but it's for demonstration purposes... var TerrainObj = { w: { name: 'water', glyph: 'w' }, g: { ...
1
vote
1answer
165 views

WebGL immediate mode

I know that WebGL is based on OpenGL ES 2.0 and that glBegin and glEnd have been removed and replaced with vertex buffer objects. I understand that VBOs are faster and use less code but is there a ...
2
votes
2answers
1k views

ImpactJS and Construct 2

I'm interested in HTML5 game development and I found about this 2 game engines, I already know ImpactJS requires more programming experience and that Construct 2 has its own event and action system ...
0
votes
4answers
308 views

HTML5 Jump and Run Game Performance issues

we're developing a HTML5/Javascript jump and run game and therefore we have developed our own gameframework. It consists of following most important structures: Stage/Scene/Layer: divs ...
0
votes
0answers
80 views

Bouncing objects against the side of the screen

I want to have certain circular objects bounce against all four sides of the screen. After searching a lot on the internet, I found the following formula: Vout = Vin - ((1+e) *dot(Vnormal, Vin) * ...
1
vote
2answers
191 views

Bullet entry Point around Player Object

I have a player rotating by the mouse and want the bullets line up with the player's gun. Right now they simply come from the point of the player and shoot in the direction of mouse. I just need the ...
3
votes
1answer
945 views

Implement Fast Inverse Square Root in Javascript?

The Fast Inverse Square Root from Quake III seems to use a floating-point trick. As I understand, floating-point representation can have some different implementations. So is it possible to ...
3
votes
1answer
304 views

Javascript tile map -> bitmap or JSON

I would like to know which idea is better in terms of performance. The map is 5000x5000 tiles and I plan to expand it even more. It is split into 50x50 regions and camera doesn't move with player, ...
2
votes
3answers
401 views

Colouring greyscale images/sprites for HTML canvas

What is the best method to colour in sprites at runtime using the canvas element and javascript? I know there are various blending modes using globalCompositeOperation, but I don't know how best to ...
0
votes
3answers
216 views

timezone independant Date.now() for node.js game

I have a game I'm working on using node.js and socket.io. The issue I'm having, is I'm trying to have it so that players execute whatever actions they inputed about 50ms in the future, giving everyone ...
7
votes
3answers
4k views

Binding C++ and V8 Javascript from Google

The examples are quite challenging to grasp if you are still getting your head around other things, so the simplest example would be great. Is there a simpler example?
-1
votes
2answers
411 views

Control sprite animation speed using Create JS

How can I control the animation speed of a sprite using create JS? When you press right and left, the sprite will run through the frames... I'd like to leave the fps at 60, but alter how fast the ...
1
vote
1answer
127 views

Path finding with identical values

I have been reading up about path finding and find it all very confusing, however this is probably the best I have found for a logical explanation: Path If the cost of two nodes has the same value, ...
1
vote
0answers
290 views

Retrieving JSON return value from function and parsing in Construct 2

I would like to know how to parse a JSON object and parse each value into either an array, or something that I can use to set values of several global variables in my project file. I want to avoid ...
0
votes
1answer
189 views

“Painting” elements in html5 canvas

I'm making a game in coffeescript (although for the sake of this problem that's probably not all that relevant) and html5's canvas. It's a game that involves a paint cannon, that fires circular ...
1
vote
2answers
144 views

What ways are there for making vector types available in scripting?

I use Google V8 engine to embed Javascript into my game for scripting. As interface to my native code, I already registered some C++ functions to the scripting context. In the native code, I make ...
3
votes
1answer
315 views

Web single player 2d top-down RPG - background image, sprites, and new level loading

I'm making a web single player 2D top-down rpg using JavaScript (create js library) and have a couple questions. For the background image, I've currently loaded a 1000x1000 bitmap to represent the ...
4
votes
3answers
373 views

Determining the end location for AI movement in groups in a 2D RTS

I have written an RTS game (a demo for a game engine of sorts, actually) in which the user's basic interaction with the game is to select a bunch of soldiers and then right-click on the map to move ...
2
votes
3answers
448 views

How do I represent walls in a 2D tile based map?

I'm trying to create a simple 3D(2D) Dungeon Crawler but I am going to be using simple flat images to show the user they are in a "3D" world. Now what I mean is something like Sword and Serpents on ...
2
votes
1answer
131 views

How to determine where on a path my object will be at a given point in time?

I have map and an obj that is meant to move from start to end in X amount of time. The movements are all straight lines, as curves are beyond my ability at the moment. So I am trying to get the ...
1
vote
2answers
474 views

How can I create and animate 2D skeletons for HTML5 Javascript games? [closed]

I'm trying to make a 2D fighting game in HTML5(somewhat like street fighter). So basically there are two players, one AI and one Human. The players need to have animations for the body movements. ...
1
vote
2answers
198 views

Movement on Multiplayer Games

I'm developing a JavaScript Multiplayer Game (Using NodeJS and Socket.IO). The problem I'm having is, on a Player's movement, the Event with the X and Y positions is sent to the server and then to all ...
6
votes
3answers
3k 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
175 views

Make perfect constant game animation using javascript

I tried different ways to make constant animations using JavaScript and HTML. The problem is that they are never perfect. If I want to move a square exactly 5 pixels every 50 miliseconds I would use ...
1
vote
2answers
809 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 = ...
0
votes
1answer
496 views

Character movement on a 2D tile map

I'm working at making a HTML5 game. Top down, closest thing I can equate it to is the gameboy zeldas, but open world and no rooms. What I have so far is a procedurally generated map in a multi ...
6
votes
2answers
876 views

Scrolling Box2D DebugDraw

I'm developing a game using Box2D (javascript implementation - Box2DWeb), and I would like to know how I can pan the debug draw. I know the usual answer is - don't use debug draw, it's just for ...
5
votes
3answers
801 views

How should I implement parallax scrolling with pan and zoom in HTML5?

I'm writing a planetary motion simulator with the HTML5 canvas element and I want to put one or more layers of stars in the background. The user can click and drag the screen to navigate around the ...
1
vote
2answers
935 views

Pass parameters from html page to start() function in unity3D webplayer application

I want to pass a parameter from web browser to Unity3D web player as soon as it is loaded. I know that, as soon as the web-player is loaded, the start() function is execute inside web-player. So I ...
0
votes
1answer
235 views

Node.js/V8 as a Platform for High End Local PC Game Development?

As a Web/UI dev rapidly expanding into more wide-open generalist territory, the more I learn about how its done in other languages, the more I love JS for architectural and basic ...
0
votes
0answers
126 views

Browser resize and orientation change in cocos2d html5

I'm currently starting a new project with cocos2d-html5. But I already stumbled upon quite a problem. If I load my game in a mobile browser and change the device orientation e.g. from portrait to ...
0
votes
0answers
31 views

How can I get url variables in unity flash? [duplicate]

I recently looked into getting url variables in unity webplayer, I got the full url including parameters form javascript and parsed it in C#, but now in flash I cant call javascript, so how can I get ...
1
vote
1answer
642 views

animating roulette ball

I'm trying to achieve something like netent's roulette (which is a great product in my opinion). It's going to be implemented in html5. I wonder which path should I take to have such a great ...
3
votes
4answers
345 views

How do I write a simple 2-player server?

I've recently started learning JavaScript and HTML and developed simple 2-player game such as tick-tack-toe, battleship, and dots & boxes. However, these 2P games can only be played on one ...
5
votes
1answer
172 views

Walking on a sphere

I'm working on a game which involves walking your character on the surface of a sphere. Using the answer to Arbitrary Rotation about a Sphere, I've written my code as: if (game.isKeyDown(37)) { // ...
-2
votes
1answer
1k views

How to create a text-based game? [closed]

I would like to create a text-based game. As simple as that. I have some understanding of the coding that needs to go into it as I do know a fair amount of JavaScript and I can do it in the ...
5
votes
2answers
428 views

Is using multiple canvas objects a good practice?

We're developing a jump and run game with HTML5 and JavaScript and have to build an own game framework for this. Here we have some difficulties and would like to ask you for some advice: We have a ...
3
votes
1answer
281 views

Multilayer game HTML5 canvas

I've have a problem with HTML5 canvas and using multiple layers. I'm using 3 layers. The first layer is where the player and the collision base objects are. And the second and the third layer have ...
0
votes
1answer
2k views

Javascript game to Phonegap for android game?

me and a friend of mine are in the process of building a javascrip/HTML5 game and I'm running into a few questions about the process of using converting it to an android game. I plan on using Phone ...