"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. ...

learn more… | top users | synonyms

0
votes
2answers
642 views

How to show a float with no decimals [closed]

I want to show the current health and stamina of the player using GUI.Label. All is working fine however it shows the values with decimals to the millionth (example: ...
0
votes
1answer
136 views

Press multiple switches to unlock the door

I made 2 scripts, one that is a switcher and one that checks if object is switched (Switch, SwitchCheck). Switch script (it's on 2 objects that are switches and both objects have colliders with ...
2
votes
2answers
112 views

How can I manage complicated visual state over a simple model in puzzle games?

I've been encountering this design challenge making a few toys with Javascript (CreateJS, EaselJS) The scenario is that you've got some sort of puzzle game with a simple game model. For a simple ...
-1
votes
1answer
94 views

Code explanation

Can someone please explain whats going on in this code written by Paul Irish I did not understand the draw(). function draw() { var time = new Date().getTime() * 0.002; var x = Math.sin( ...
0
votes
0answers
215 views

Picking tiles in an isometric diamond map

I am rendering a isometric map with the following code: for(var x = 0; x < MAP_WIDTH; x++) { this.map[x] = []; for (var y = 0; y < MAP_HEIGHT; y++) { var screenX = ...
0
votes
2answers
503 views

Character bounces/stutters down hills

I'm using Unity3D (not 4) and I'm experiencing a bit of a problem with character movement. I'm using a cylinder as a First Person player with a child Main Camera. In this cylinder is the stock ...
0
votes
1answer
64 views

Regeneration using Time.deltaTime

I'm trying to regenerate stamina at a rate of 1 per second using Time.deltaTime, however this doesn't do anything (My 'current stamina' doesn't change at all). I've done some looking around and I have ...
0
votes
1answer
173 views

How to use setInterval and clearInterval

I have a game that I am making and cannot seem to get the setInterval and clearInterval methods to work. When I debug it in the browser console it shows that the method is still being called over and ...
0
votes
1answer
911 views

Problem with Raycasting in a 2D Game

I'm new to using unity and came across a problem when I was following a tutorial. The game is in two dimensional space, and when my player walks over a certain tile the detection never goes off. ...
1
vote
1answer
237 views

How to use sprite as font in Unity?

I've started working on my first game in Unity; It's very simple, there's a spinning block in the middle, and there are spinning blocks coming from all sides. When they hit the middle block, you lose ...
5
votes
4answers
1k views

Why do I need a local server for HTML5 game development?

I'm new to HTML5 game development. I'm trying to make something using Pixi.js, but when I tried to view it in a browser, I saw a blank page. According to the tutorial I'm following, I need to set up a ...
0
votes
1answer
108 views

How would one outline an alpha transparency layer in javscript and/or php? [duplicate]

I simply want an outline/edge detection of the character/item/object that is selected or doing something. I'm seeing lots of versions of this question for different languages, but I would appreciate ...
0
votes
0answers
37 views

top down 8 directional movement - need help with collision [duplicate]

I have for some time now been strugling with movement in my game. I want a zelda like 8 directional top-down movement. I have tried different things, but non of them have been perfect. EDIT: ...
-1
votes
2answers
193 views

C#Script select GameObject

I want to load the prefab instead of the gameobject that is in the screen, my code is this one: using UnityEngine; using System.Collections; public class Arma : MonoBehaviour { public static int ...
2
votes
1answer
549 views

Inverse Explosion with Unity2d

I am currently trying to make all other objects push away from the player when the player explodes. It currently works, but it pushes close objects a little and far objects very far. What I want is ...
0
votes
1answer
220 views

One draw call with one big mesh VS many draw calls with many little meshes

I have read that in order to optimize WebGL application, one should reduce an amount of draw calls. But does it mean that computing a one big mesh from all single meshes on CPU by modifying vertices ...
9
votes
2answers
2k 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 ...
3
votes
1answer
2k views

How can I apply a glow filter in Phaser?

I'm trying to get the following effect, but as far as I know, a filter is the only sensible way. Imagine some objects and background, and a fire ball passing through. The fireball glows. All objects ...
-1
votes
3answers
545 views

Can these game be fully coded in html5/javascript? [closed]

I mean the mechanics of the game. Would it be possible? -Pokemon GBA series, rendering the world would be easy, but what about battle mechanics? -MapleStory, after seen dragonbound.net which is an ...
0
votes
1answer
120 views

How does this game loop actually work?

I read this playfulJS post, about ray-casting: http://www.playfuljs.com/a-first-person-engine-in-265-lines/ It looks really interested, so I decided to look at his javascript. I am no expert in ...
0
votes
2answers
458 views

How to move an image back and forth with javascript

I currently am trying to make a baseball game and have this code here: http://jsfiddle.net/769BK/ I have the baseballX set to a decrement, and then I try increasing the value using baseballX++; but it ...
1
vote
1answer
686 views

Unity3D - Android pause screen - double click issue [closed]

I made a pause script for the game im developing for android. I added the script to the GUITexture I created and placed on the top right side of the screen.The issue stands at the part where if the ...
3
votes
1answer
202 views

determine collision angle on a rotating body

update: new diagram and updated description I have a contact listener set up to try and determine the side that a collision happened at relative to the a bodies rotation. One way to solve this is ...
2
votes
2answers
95 views

Linking one uniform variable to many shaders

Let's say, that I have 3 programs, and in each of those programs there is a view matrix uniform, which should be the same in all those programs. Right now, when my camera moves, I need to re-upload ...
0
votes
2answers
1k views

what function creates rotation effect in three.js?

which part of the code is responsible for the rotation in this example? Is it the camera or the scene itself? http://threejs.org/examples/#canvas_camera_orthographic
0
votes
1answer
184 views

How to solve problems with movement in simple tile based multiplayer game?

I'm making a simple tile based 2D multiplayer game in JavaScript using socket.io where you can move one tile every 200 ms. The two solutions I've tried are as follows: The client sends "walk one ...
2
votes
2answers
264 views

How do I render an animation where some frames appear twice?

I am animating a sprite. The sprite has 7 different frames, but the animation is 10 frames long. This is because 3 of the original frames appear twice in the animation: 3 -> 4 -> 5 -> 6 ...
0
votes
2answers
776 views

How to move an object using X and Y coordinates in JavaScript

I am making a 2d baseball game with JavaScript and HTML5 and am trying to move an image that I have drawn with JavaScript like so: //canvas var c = document.getElementById("gameCanvas"); ...
-2
votes
2answers
142 views

collision detection algorithm issue

here is the jsfiddle i am working on so far : http://jsfiddle.net/TLYZS/ if you debug the code and check the collision function you can see that the collision is working fine when the user overlap ...
4
votes
2answers
7k views

How to ignore collision between two objects

I have a player that shoots in the direction that it is facing. However, the shot that is created when I click, also destroys the player (example). How would I make the shot ignore collision with the ...
1
vote
2answers
248 views

Can I have keyboard controls in an MMO and still do movement calcuation in the server?

I'm trying to decide between keyboard and mouse movement controls for a web-based multiplayer. It would be quite resource-intensive to use the WASD-keys and AJAX the server with controls every second. ...
1
vote
2answers
1k views

Dealing with multiple animation state in one sprite sheet image using html5 canvas

I am recently creating a Game using html5 canvas .The player have multiple state it can walk jump kick and push and multiple other states my question is simple but after some deep research i couldn't ...
-1
votes
1answer
342 views

simple collision detection with box2dweb

im beginner in box2dweb that version of box2d for javascript i wrote simple gravity system and i want to detect the collision between the box and the ground , when the falling box hit the ground ...
5
votes
3answers
380 views

How to do a genetic algorithm's chromosome which controls movements

First I would like to inform you that I'm french and 15 so my english is not very good. I've read some articles about genetic algorithms (GA) and since I discovered the HTML5's canvas element, I can ...
0
votes
1answer
111 views

How to store and use different AI behaviours

I'm coding a space shooter on three.js (WebGL) and since the game I'm doing is rather simple, plus I want to keep controll of the structure, I'm not using a game engine. I'm using oop classes and ...
-1
votes
4answers
408 views

How to increase the game “level” after certain amount of objects spawned?

The game is supposed to increase the level by 1 every 10 spawns of an object, using totalShots % 10 == 0. So, when totalShots is equal to 10, 20, 30, etc. the level should increase by 1, however, the ...
0
votes
1answer
2k views

How to randomly spawn object using instantiate

I'm trying to spawn objects which move in one direction until they hit a player or the barrier. The spawner is a cube which moves between two points to spawn the object at different locations. The ...
1
vote
2answers
598 views

Object goes straight through game object without colliding

The "shot" is supposed to collide with the left bumper and then be destroyed, but the shot goes right through it. Both objects have a box collider. The following is the code I am using: #pragma ...
3
votes
1answer
340 views

storing user data for rpg

I'm creating a single player Web rpg that will store a decent amount of information about the player, items, map, npcs, etc. I have been developing html5, javascript, php, and the mysql database ...
1
vote
2answers
270 views

RPG: store dialog

I'm creating a single player web RPG. I was originally storing NPC dialog in a JS object. I could cycle through lengthy dialog in an array as I wanted. I can also store objects with K:V pairs. That ...
3
votes
1answer
2k views

Adapting tilemap algorithm to support isometric tilemap

I'm using Phaser to build an isometric game. The framework doesn't have support for isometric tilemaps yet, so I'm starting to write a PR for it to support. What I currently have, loading an ...
0
votes
1answer
146 views

Check legal movement on grid map

i'm trying to develop a simple multiplayer turn base game, i'm start creating the grid map, i have already write the javascript script to display the range movement for the specific unit, but my ...
1
vote
2answers
322 views

Optimize DOM game performance

I am working on a game developed on DOM using Crafty JS framework, and Greensock GSAP JS (http://www.greensock.com/gsap-js/) for animations. It is my first time working with these technologies. I ...
0
votes
1answer
1k views

Can't Build Cocos2Dx emscripten project [closed]

I need to port a Cocos2D-x project to Web (JS+HTML5). I'm trying to compile cocos2D-x samples using the emscripten project for cocos2d-x, and I've followed this tutorial ...
-2
votes
1answer
93 views

How do I make other players see one player's die rolls? [closed]

I'm new to PHP and making a simple dice game. It works well in single-player, but in multi-player, I don't know how to show the results of one player's rand(1,6) dice roll to the others using a web ...
1
vote
2answers
99 views

How do you account for zoom in a top down viewport?

I've been stumped on this for days so please forgive me if this question is in bad-form. I have a generic top-down RPG structure, and I want to create a zoomable Canvas viewport for it. I've read ...
3
votes
2answers
659 views

Converting Doom maps to JSON [closed]

This is a really cool demo of a Canvas Doom Engine made back in 2006: http://canvex.lazyilluminati.com/84/play.xhtml Here is the e1m1 map in JSON format: http://canvex.lazyilluminati.com/84/map1.js ...
-2
votes
1answer
132 views

in a 2D game that has an array as a map how to make graphics look nice?

I have a map that's stored in a 2D Array with 1s being walls, 0s being roads, and 2s being houses. There is a character that is not stored in the map but its position is always checked against the map ...
1
vote
0answers
45 views

Moving a div with hotkeys using easing in and out

I'm working on replicating Tagpro using AngularJS and Firebase as a learning project. I want this ball to move using ease in and out like in the youtube video below. My code: ...
8
votes
5answers
2k views

Good technological solutions to build an ascii map and moving characters in a browser (like dwarf fortress)? [closed]

I'd like to build a webapp for my game website that involves using text characters to represent animals and people, and have them move around on map squares with independent (server driven) AI. So ...