"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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14 views

How to display a lot of small objects using WebGL?

Introduction The game scene contains a lot of 10x10 pixel elements: for 1980x1200 px. screen the number of elements on the scene can vary from 0 to 23760 (elements cannot intersect). The live ...
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1answer
29 views

JavaScript 2D liquid flow

Brand new to games/graphics and I'm attempting to find a method to create a 2D liquid effect with JavaScript. Ideally I could adjust the viscosity and flow from a gas/fog effect to oil and between. ...
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1answer
50 views

Can someone explain this function? [on hold]

How does the spawn function work? var max_bollar = 15; var i = 0; var timecounter = 0; var bollarcounter = 0; var spawn_delay = 5; var min_spawn_delay = 25; var max_spawn_delay = 500; var balls = []; ...
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3answers
28 views

How to center a tilemap in Phaser?

In Phaser, I am loading a Tilemap from JSON. I would like my Tilemap to display in a particular position (for simplicity here I say the middle of the screen). var map = ...
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1answer
31 views

Javascript 2D game tile textures

I am using a texture atlas for my tiles. Of course I need to get the sub-images to draw them on the canvas as separate tiles. Right now I can think of two ways to implement this. Divide the texture ...
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2answers
33 views

How can I get information from a function

Okay, so if I use this code to randomly spawn balls at the top of the screen, how do i get them to move down: var max_bollar = 10; var i = 0; var timecounter = 0; var bollarcounter = 0; var ...
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2answers
77 views

How can i call a thing a lot of times (game: dodger)

Hey I am new to coding and i want to know how to get the same thing to hapen until i "say" stop. The game is that you need to dodge stuff that is falling, i was thinking that i could use a while loop ...
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1answer
41 views

How can I create a spacial grid? [closed]

I just created a tile map for my game, and its a side profile game. The game looks sort of like Terraria, where there is blocks you can place and break. I want the player to be able to collide with ...
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1answer
51 views

How do I deal with AABB sweep ghost collisions?

I've been trying to wrap my head around this for some time now. I wrote an implementation of AABB sweep collision detection. I though I understood the idea but it didn't work as expected. I rewrote ...
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0answers
13 views

Pixel collision detection between two images is not working in Phaser.js [duplicate]

I am applying collision between two images. But the two collided images are not taking the pixels to collide with each other. The collided images are overlapping each other but at some point, the ...
3
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0answers
34 views

Change color of bitmap

I am attempting to understand the easeljs ColorFilter and its use with cache. There is quite a bit of information at the easeljs site but it's not clear based upon the examples and documentation. ...
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1answer
32 views

Random equidistant points like a tree branch (JS)

I'm working on an algorithm to generate a "graph" like array of points in my game world. See Image Below: Here is what i'm working on so far, which will generate the black line.. but this may not ...
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1answer
19 views

how to follow(center) a box inside canvas element

If inside a canvas I draw a box, and the I add arrows to move it, the box will eventually be out of my reach since it goes out the border and I cant see it. How could I follow the box so that it is ...
3
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0answers
24 views

Image won't scale after click

Despite being a long-time developer I've never played with JavaScript libraries or any sort of graphics development. With my son we're trying to create something interesting and are using ...
0
votes
1answer
37 views

How do I sync the gameobjects to server in C# unity?

I have been working on Game that consists of 10 Game Objects that have to be sync by the server values. The server decides that which game object will win and then sends command to my side(Client ...
0
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1answer
42 views

javascript efficient collision detection [closed]

I have a processing game where I am having serious lag problems with collision detection. I am using the most effective code I can think of however after about 9 levels in The game gets unbearably ...
1
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1answer
28 views

Color Based Collision Javascript (Cocos2d-js)

Im looking to make an isometric game...so my partner designed the isometric map (jpg image) along with the map objects (png) on adobe ilustrator... so the thing is i would like to set the player path ...
0
votes
1answer
38 views

My polygons only register a collision if they are the same shape and directly over top of each other

I'm trying to learn about 2d polygon collision detection/handling and have ran into a snag. After running through lots of tutorials and sample code I've attempted to implement my own polygon class ...
4
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1answer
107 views

Fixed Time Step Flutter

I've seen a lot of questions about this problem, but really no solution. Hopefully I can explain the issue well enough that I can get some sort of closure on this problem. I'm using a Fixed Time ...
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1answer
199 views

How Can I Find a Shape on 2D Array?

For the code in my test project, I want to find 2D[,] array shape on the char[][] list. I created an actual map with 'char[][]' array. So, how can I find a tileChar's shape on the worldChar array? ...
1
vote
1answer
51 views

Making a Fall Trigger Game Over

I have been struggling with this fairly basic issue: To make a game over menu appear upon death. I am making a 3D game in Unity, where you, the player, must control a sphere with the basic controls: ...
1
vote
1answer
63 views

3D Planetary gravity

so i am making a thing in javascript and i want to have planetary gravity in my "universe". But when i use an equation to calculate the acceleration by gravity i get one number. That is how fast the ...
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0answers
33 views

Using canvas graphics instead of traditional sprites in phaser

Trying to learn phaser (total beginner with mild js experiance) and I'm following tutorials and such where everything is using sprites. I'm trying to get by with basic canvas shapes instead of ...
2
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0answers
37 views

Strategies to make it difficult to cheat + easier to identify cheaters in Javascript/HTML5 game [duplicate]

I intend to have a Javascript/HTML5 game with a global leaderboard. I have devised a very simple system for submitting highscores as follow: When the game finishes, the game client makes a POST ...
0
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1answer
78 views

How do I hide UI canvas in c# Unity3d?

I want to display the final results at last in the game when gameobjects finish the winning(finish) line. For that I am using canvas and in that a panel onto which an image is attached. I have to hide ...
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0answers
27 views

Circle velocities stay the same after elastic 2D collision

I am following this paper in trying to create elastic 2D collisions among two circles. The problem is that my end velocities are the same as my start velocities. I've looked over my code and don't see ...
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1answer
38 views

Understanding Javascript Variable Initialization [closed]

I saw this piece of code while doing research for an idle game I am making: var minions = new Object; minions = { 0: { name: "Mole", description: "...", price: 10, ...
4
votes
7answers
815 views

How to avoid cost comparison each and every frame?

I'm toying around with a ticker(incremental game) for JavaScript. The basic idea is that you have buttons that represent buildings, each building provides a certain amount of resource per 'tick'. ...
0
votes
1answer
52 views

Unity 5 Animation attaching

I have created the walking and idle animation for my fps player. I've added a JavaScript script to access it, but when I run it and press button(w), it stops and says that the animation is not ...
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0answers
26 views

align local Y to be parallel with global Y during or after slerp

I am using the following function to have a globe rotate a point on its surface to face the global Z toward the camera. This works fine, but after each rotation the Y axis seen as a green line is not ...
18
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5answers
3k views

Prevent cheating in html Javascript game [duplicate]

I have made a Javascript/html game. Now the problem I have is anyone can edit the client code and cheat in game for example there is a man shooting a enemy. Man HP: ...
0
votes
2answers
122 views

How do I keep a PHP server running forever?

I'm making a web game RTS, it's mostly create units, manage resources, attack with army, and level up factories. I have created the basics of the game using Javascript, PHP, and MySQL databases. I use ...
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0answers
43 views

How to get the angle an object is travelling at

I'm trying to figure out how to get the angle an object is moving at, but have ran into a few problems. My player object is moved by rotating the entity left and right by using the left and right ...
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2answers
70 views

How to make the character cannot pass through other randomly moving objects when they are collided?

As the title above, how can i make my random wallImg solid enough so that my birdImg cannot pass through it from any sides of the wallImg? Here's the code of Processing's Crappy Bird that i've altered ...
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0answers
49 views

Drawing a hexgrid on a canvas, yet making it zoom/scrollable?

I'm developing a game in JS / PHP. The game is basically a 2D plane (hexgrid) where each hex represents a location in space. In total, I'm drawing 25 * 25 hexes on a 1000x1000 canvas. I also draw ...
0
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0answers
26 views

How to get the absolute position of the sprite in the renderview regardless of the pos of PIXI.Container?

I implementing panning on an infinite platforming game I developing but this is messing up with my current setup and structure of the game world (collisions, player location, etc.). Though I figured ...
0
votes
1answer
61 views

How do I use delta-times to determine the speed of a frame-by-frame animation?

I have a character spritesheet with 8 images. How do I animate it? At the moment, the sprite changes to a different image every frame, which makes the animation speed vary with framerate. I have a ...
0
votes
2answers
48 views

How can i fix “get_transform can only be called from the main thread” error in my code?

Here's my code: var forward = transform.TransformDirection(Vector3.forward); var input = Input.GetAxis("Vertical"); function Update(){ transform.position += forward * input * Time.deltaTime; ...
3
votes
1answer
52 views

How can I turn off the sound from another scene?

I attached music file to my first scene and thanks to following javascipt code, sound continues without stopping in other scenes. public static var object : SingletonMusic = null; function Awake() { ...
2
votes
1answer
54 views

Particles to Denote Movement in Space

I'm currently working on a WebGL project to realise an idea I've had for some years. On my desk is book on making a space sim written 15 years ago. There I found some algorithm for particles in ...
2
votes
2answers
106 views

How do I find the set of regions that are fully enclosed by a color?

How do I get all areas surrounded by a certain color in a multidimensional array? For example, this map has three regions that are fully enclosed by red tiles. They are highlighted enclosed in pink. ...
1
vote
1answer
43 views

Javascript canvas check if all recs on the screen overlap a new one

So I know the AABB collision detection formula, however, this code does not work. Whenever I press space, a new square pops up. But this new square can spawn inside another, something that I do not ...
0
votes
2answers
68 views

Progress bar for EXP in javascript

So I am making an incremental game with Javascript, HTML5, and CSS, I need to have this bar that is esentialy a div with a p element in it "fill up" as the player earns more points through sacrifice. ...
1
vote
1answer
46 views

Click counting and actions based off count

So I have a button that is the 'mine' for my incremental game. I would like to track the number of times that it is clicked and be able to do two things: Have events happen say every 5 clicks. ...
1
vote
1answer
114 views

How to post player´s score on Facebook (with js)

I have my game made with Phaser (and compiled with cocoon.io) and on the leadersboard state I want to let the user to post his score on Facebook. Well, I created an App on Facebook and I´m not ...
1
vote
1answer
27 views

Separating .js elements/ .js element communication

So I have 2 questions regarding the code below: function goldClick(number){ gold = gold + number; document.getElementById("gold").innerHTML = gold; }; function buyMiner(){ ...
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0answers
31 views

Arrow buttons not functioning properly [closed]

I have been cobbling something together from different examples that I have seen online I would like to know why is it not just showing 1 button per page and instead showing them all and decreasing ...
0
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0answers
27 views

Tweening back from arbitrary 3D rotation in javascript

I'm using a 3D javascript library to rotate the vertex of a 3D object with a classic 3x3 matrix, to an arbitrary angle in the 3D space, as depicted in the image below. For example, a first ...
2
votes
1answer
46 views

p2.js body position is NaN when spawned inside of each other

I'm working on a project for which I need a physics engine. At the moment I'm playing around with p2.js but I'm running into a problem: When I try to create multiple bodies (circles and/or boxes) ...
1
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0answers
50 views

Error with Cocos2d-JS when using Skeletal animation from Cocos Studio

Here is the JavaScript code: var size = cc.winSize; ccs.ArmatureDataManager.getInstance().addArmatureFileInfo(res.skeleton); // The error comes from the following line var armature = ...