"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. http://en.wikipedia.org/wiki/...

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1answer
62 views

Bouncing from any object after collision JavaScript

I'm trying to make a ball bounce off some obstacles after a bounding box + pixel by pixel collision. Somehow, sometimes the ball is not going in the direction it is supposed to be. If the ball is ...
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0answers
50 views

Errors in code examples from the book “Advanced Game Design with HTML5 and JavaScript”

I have purchased Advanced Game Design with HTML5 and JavaScript and have started going through the chapters. I notice that after chapter 2 I get code errors and the source code from the downloads ...
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0answers
78 views

Pixel by pixel collision detection pinball

I'm currently working on a Pinball game using the HTML5 Canvas and JavaScript. Right now I'm getting a hard time with the pixel by pixel collision, which is fundamental because of the flippers. Right ...
3
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1answer
63 views

SDD Inverse Kinematics with constraints

I have a question regarding my quest on onderstanding IK solvers. After viewing this movie on YouTube: https://www.youtube.com/watch?v=MvuO9ZHGr6k I started recreating it with JavaScript. Just 2d on ...
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0answers
22 views

Emscripten / webgl lazy rendering?

I compiled existing opengl es 2.0 code to webgl using emscripten. In the desktop version there is lazy rendering mechanism that only renders when required which is basically just saying invalidate ...
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1answer
43 views

How add a PIXI container into a Phaser Game?

How add a PIXI container into a Phaser Game? I have a game made ONLY with PIXI. but now i would like to port it to a Phaser. All my game content happens inside a pixi container "screenContainer". ...
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1answer
85 views

Why do my trees share the same health?

My trees keep on falling at the same time and I am not sure why! I am new to Unity3D javascript. Here is my script: #pragma strict //INTS var health = 5; //GAMEOBJECTS var tree : ...
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1answer
27 views

design / data structures

I'm working on a game which I'm writing in Javascript and then porting to iOS/Android via phonegap/cordova. For the most part, I understand how to code and how to get what I want to happen, BUT I ...
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1answer
43 views

add physics to a group or container body in phaser

I'm developing a HTML5 Phaser game. In this game I do have a Group which I would like to behavior as a physics body (arcade-physics). It is a character with a lot of moving parts (sprites) inside ...
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0answers
31 views

NodeJS timed update approach

My game has users building buildings, recruiting units, trading resources and sending attacks. All of this functionality takes a certain amount of time to happen and I'd like help with deciding on the ...
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0answers
31 views

Collision event callback on p2js not working

So, I'm making a simple game on Phaser where a ball object and bullet group collide with each other, incrementing a score variable whenever this happens. I already set up the collision groups and are ...
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0answers
29 views

Create a character from multiple sprites

I have multiple spritesheets for a character in my game. The user can decide which gender, which hair, which haircolor he wants. Some images have to be on a higher layer than others (hair > head > ...
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2answers
59 views

Maths ? coordinates rotating around coordinates

could you geave me a tip please, a redirection to what is the "simple" math I need to learn and understand for the rotation of an object (its coordinate x, y) around an other object (an other x, y), I ...
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1answer
35 views

Webgl, weird rendering with sprite that has alpha

So I have a webgl application where I render all kinds of objects, but in this specific example, I have two shaders. One that renders sprites and one that renders colored polygons. In this example I ...
1
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2answers
99 views

Canvas slowly degrades in performance after a while

I was creating a simple game and was shocked to see how the performance started to degrade. It never happened to me before, most probably because I use images and not the context drawings. So I used ...
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0answers
33 views

How to fix my physics functions so they perform at the same speed across different FPS's

My jump function looks like - self.jump = function(){ //do the initial jump if (self.pressingUp && self.onGround) { //this just gets it off the ...
1
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1answer
78 views

Fastest way to render isometric world with moving entities?

I've got an isometric diamond-shaped world. The world consists of isometric planes like rooms. The walls and floors of the rooms and all obstacles and items in the rooms are isometric entities. So I ...
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0answers
29 views

Camera movement on a sphere, and how to look while doing it

I am trying to make some kind of pointerlocked walking simulator that involves movement of the camera on the inside of a sphere. I've looked at Walking on a sphere, but that solution fights what I'm ...
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0answers
42 views

Multiplayer Keeping the Client and Server Updates in Sync?

I am working on a Multiplayer Game, I have a client loop which can run at 30-60fps. Inside of that Loop I check whether the players left mouse is down. If it is, send a shoot command to the server. On ...
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0answers
11 views

Clicking an entity with transformation

I am trying to understand how best to implement a click detection function in a 2d JavaScript game. I can demonstrate using a simple example of two square 'entities' which can be selected when ...
2
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1answer
90 views

How to implement map scrolling inertia formulae

I'm looking for a mathematical formulae to calculate map scrolling inertia. Basically I have an HTML5 Canvas displaying part of a map and I capture the mousedown / mousemove / mouseup to calculate my ...
0
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0answers
32 views

Why are my components empty in my Entity-Component Model Javascript/Phaser implementation?

I'm developing a game in JavaScript using the Phaser framework, I'm trying to implement the entity component model so that all my objects can be Entities, so far I've got an Array of entities that ...
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0answers
88 views

Phaser - Add collision to a specific tilemap layer?

In Tiled I made two layers, "Background" and "Walls" and I have positioned them accordingly, both as a background and walls, or if you prefer "Not being able to collide" and "Being able to collide". ...
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0answers
14 views

Phaser P2 RevoluteConstraint motor not working

The following code produces a flipper and four balls that seem to interact as they should. They all collide with each other and the game world bounds. The problem is that the motor isn't working, nor ...
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2answers
223 views

Dynamic navigation mesh generation algorithm

I'm working on a 2D game (top down / zelda like view) I'm struggling with navigation mesh generation, in complex scenarios my homemade algorithm is lost and too slow... I would really love to see a ...
2
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1answer
67 views

Unity, how do I pause the Audio in the Level? [closed]

I wanna pause the Audio if I press the Pause Button also, I need help.. Pause Script: #pragma strict var pausemenu: GameObject; public function pause() { pausemenu.SetActive(true); Time....
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0answers
35 views

Access Unity Webgl output from browser and vice versa

I receive a package of Unity webgl and put that into a course in Wordpress. The index.html produced form Unity is accessed inside an iframe there. This must be able to count user click when accessing ...
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0answers
28 views

Movement prediction on client

Im pretty new to game development. Currently I try to predict the movement of the player on the client. But my client and my server are calculating different values. Im using a delta time for the ...
1
vote
1answer
71 views

Should I use the pathfinding client side or server side? [closed]

I'm developping a game where the user can walk in a room (with the others players). There are some obstacles that blocks the user. I'm using a Javascript pathfinding library to find where the user can ...
1
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2answers
45 views

Updating code to include states

The Problem I am having a problem in that I am finding it hard to understand how to update my current code so that it uses states. I am creating a game, the game has a menu, each page in the game ...
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1answer
29 views

How does this point2LineDist() method works?

I was browsing Wolf3D JS port and bump into that method : /** * @description calculates distance between a point (x, y) and a line. * @memberOf Wolf.Math * @param {number} x X coord of point * @...
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0answers
47 views

Chrome Canvas bug on Mac OS X when switching spaces?

I have a simple Breakout clone created using the <canvas> element and the 2d context. Whilst playing the game in Google Chrome (version: 49.0.2623.87 (64-bit)) if I switch spaces within Mac OS ...
4
votes
4answers
260 views

How decoupled should game logic and rendering be?

From a data perspective, how decoupled should game logic and rendering be? How much does it have to know about each other? Take a look at the following example. I'm going to use javascript because ...
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1answer
22 views

Oscillating an object left and right based on it's current orientation

I'm currently implementing a fire animation in HTML5 Canvas using the phone's accelerometer. Regardless of the phones orientation, the triangles for the fire move upward. So you can spin your phone ...
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2answers
84 views

2D Animated Tile rendering

The current game I've been working on needs to have animated tiles. I have a code for Tile and TileMap from my previous game that I recycled. However, it does not support tile animations. The tile ...
1
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1answer
45 views

Does pausing the canvas draw restores the FPS to higher value in a HTML5 game?

I set Frame Per Second of 60 for my game. But after 1 minute it gets to a significantly lower value - around 8 FPS. Does pausing the canvas drawing restores the FPS to higher value? If it does, how ...
0
votes
1answer
102 views

Can I use JavaScript for Unity 5? [duplicate]

Sorry for my bad English. I wanted to know how similar is JavaScript with Unity Script. I know that Unity Script is not JavaScript and it was done for marketing purposes but I just wanted to know if ...
-1
votes
2answers
129 views

Inconsistent AABB collision detection

I'm making an endless jumper as my first game and I'm running into some problems with the one-way collision detection. Collisions are detected correctly most of the time but occasionally the player ...
1
vote
1answer
98 views

Java - Adjusting the speed of an object during movement

I am trying to get an object to move (on java canvas) in the same angle but at different speed within the X and Y axis. Below you can see how i have implemented the movement of the object. xPosition +...
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0answers
34 views

Circular motion

I'm working on a to-scale simulation of the Solar System with HTML5 Canvas but a problem appeared which I am unable to solve. All the astronomical objects I've added have a point-of-reference (i.e. ...
0
votes
1answer
65 views

Efficient way to store entities in javascript

I am trying to design a game from strach with Javascript. It's a 2D game (a kind of Zelda on old devices). I am trying to find an efficient way to store my data because I know I will have to face ...
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0answers
12 views

Adding calls to an Entities update function

So I am trying to add a property to my entity function then in order for it to update I need to call it within the entity's update function so this is how I create the entity var sprite = ...
1
vote
1answer
90 views

How should I efficiently clear and redraw my canvas with lots of animated sprites?

My current solution is to clear the entire canvas and redraw all sprites on every requestFrame(). This works but feels inefficient: I only need to clear the part of the canvas made invalid by ...
0
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0answers
22 views

JavaScript — Unity Movement Bug

Hello fellow programmers ! I have been working on a game lately and It's going pretty good. Today I decided to make a new car for it since it's a racing game. When I was modelling the car I ...
0
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0answers
45 views

storing hexagon-based (x/y) movements in a database

Im developing a hex(agon)-grid based game. The game is turn-based. Players move stuff on the map and they need to be allowed to issue movement-orders. Units move a certain amount of movement-points ...
1
vote
1answer
64 views

Hybrid App - Game Encyclopedia Image Asset

An in-game encyclopedia usually consists of entries and images for things related to the game. For example, pokemon's pokedex. Image of Pokemon, text description and so on. I've happen to encounter a ...
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votes
1answer
65 views

What JavaScript and or Html should engine I should use? [closed]

I took some classes on JavaScript and I know some html5. I took these classes so I can Learn Game Development!! I want to use JavaScript and not C# or C++ because I want easy cross platform with the ...
0
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1answer
66 views

Collision between free player and tilebased map

so I'm working on some sort of platformer in javascript where the map is tilebased but the player can move freely. Now, i have a problem with collision detection/response. It's kind of obvious what I'...
0
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1answer
15 views

Mousedown event not performing drawImage

I've been working on the basic gameplay. I'm to a point where I think it should draw a card in the quadrant clicked/tapped, but nothing is happening. I can't see what's wrong. Please help. My only ...
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1answer
46 views

Why are my canvas drawings larger than the actual image?

For the following page source, I've finally gotten a grip on rendering the cards. I'm puzzled why they appear about 2.5x larger on the canvas. <html> <head> <style> ...