Game engines are a collection of libraries and tools that provide a framework to create games.

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How to compute matrix transform local/world on OpenGL

I'm developing an OpenGL program where each object / entity contains m_WorldPosition, m_WorldOrientation, m_WorldScale and m_WorldTransform (Vector3, Quaternion, Vector3 and Matrix4f). The problem is ...
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51 views

Which 2D Game Engines have a visual editor (similar to Unity)? [on hold]

I know Cocos2d-x has a visual editor called Cocos Studio. Are there any other 2D Game Engines which have a visual editor? ps. I'm not looking just for basic 2d game engines, they need to have a ...
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0answers
13 views

Terrain texturing problem in cryengine 3 sdk

When I try to paint textures on my terrain, I'm getting the underlying black/white grid thingy. Moreover, I keep losing the color on my terrain every time I load the level. any ideas what I'm doing ...
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0answers
22 views

How to start with game development Android [on hold]

I am new in Game Development.Basically i want to create android based games.I have seen OpenGl ES is the best way to create games for Android.Is there any Game engine for creating games both 2D as ...
1
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1answer
81 views

How do I let a game support different rule sets?

I'm making a MUD game engine that supports D&D , Pathfinder and other tabletop-RPG rule sets. I am starting to build out how characters interact with the world (e.g. dialog, battle, searching for ...
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1answer
74 views

Does Unity 3d cost money? [closed]

So I installed an Unity engine and I want to develop games by that. I heard that it costs 1500$ to program the code and post the game. Is that true? Did some1 developed a game with it and uploaded it ...
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0answers
13 views

Game restarts after facebook login in andengine

I have created game in which i have used facebook login after successful login i am redirected to my splashscreen i don't want to go to splashscreen instead i want to open another scene but i don't ...
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0answers
49 views

XNA/DirectX: Advanced 3D Sound

Im currently working on an xna game with c#. Ive been looking into 3D Sounds recently as this is the next objective on my list. Ive found several tutorials online and they dont work to the standards ...
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0answers
25 views

Android : Candy Crush Map Menu like [closed]

im new in android game dev. Im using a simple game loop and surfaceview and trying to bluid a world level selection like Candy crush. I need some help to understand how to do it (logics) and How ...
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1answer
177 views

Structure gameobjects and call events

I'm working on a 2D tile based game in which the player interacts with other game objects (chests, AI, Doors, Houses etc...). The entire map will be stored in a file which I can read. When loading the ...
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5answers
920 views

How do I prevent memory-modification cheats?

There are many memory-altering programs out there nowadays (Cheat Engine & co). Is there an efficient way to keep a constant variable actually constant? I had two ideas: Make a separate thread ...
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3answers
2k views

Unit Testing at Unity3D

How to implement Unit Test at Unity3D. I wonder if it would be possible to extend the Unity editor to have some sort of testing framework in it. Is there any guideline to implement it? EDIT : ...
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1answer
320 views

AndEngine - Performance problems with many entities

I'm developing a rolling scene based game I'm loading all the entities from a XML file and create them in the Loading Scene recently I increase the game width , and by doing so , in the whole level I ...
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2answers
2k views

FBX Importer - Texture Name

I have a problem with the FBX SDK. I read in the data for the vertex position and the uv coordinates. It works fine, but now I want to read for each polygon to which texture it belongs, so that I can ...
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1answer
200 views

Grid collision - finding the location of an entity in each box

I am trying to implement grid-based collision in a 2d game with moving circles. The canvas is 400x400 pixels. Below you can see the code for my Grid class. What I want it to do is check inside which ...
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1answer
67 views

State system and animation of derived classes

I'm trying to get some kind of state system for my game objects. I have a base Actor class that is derived by classes like Policeman, Informant or Brawler. Each of those classes describes different ...
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3answers
513 views

Do I have to compile Unreal 4's source myself in order to make games with it?

Now I understand the need for this if people want to make modifications to the engine itself, but if I want to use the engine as is and just program games with it, do I need to do all this? I figured ...
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1answer
70 views

Distortion problem with perspective projection

For various reasons – partly educational, partly technical – I'm writing a 3D game engine from scratch, using OpenGL 3.0; aiming for Core Profile, eventually, so of course I'm using a custom matrix ...
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1answer
59 views

Does level streaming in games load directly from the HDD?

I wondered if the level streaming loads directly from the HDD. My first thought was if that would not be to slow, or if the chunks are just loaded into ram and asynchronously processed if appropriate ...
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2answers
161 views

What are my options other than game engines? [closed]

I'm a programmer. I've experience in Java, python, and c++. I see that some big games are built using game engines (Crysis uses Cryengine). However, other don't (Bayonetta for example). what's their ...
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2answers
161 views

What GameEngine to choose [closed]

I concider myself an amateur, but I have quite some experince in Unity3D. Over the course of the next three years - before I can quit my job and go to colledge - I want to make ONE game. Now the ...
19
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9answers
10k views

Why do game developers write their own engines instead of using existing ones?

I observed that most of the most, big and well-known game titles developers oftenly develop their own engines - like Valve has their engine, Crytek has their own, Ubisoft has their own, Epic games has ...
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2answers
255 views

Recommended approach for event system in Java

What are the recommended approaches for an event system of a turn-based RPG's battle engine? The system I'm currently working on has a runEvent method that sorts the actions queue based on their ...
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0answers
23 views

Cleanly and quietly passing decrypted gamedata to game engine executable? [duplicate]

What? I've been developing a fairly large game in the Blender Game engine (an open source GPL game engine) for a little over a year and a half now and have been struggling with a commonly used method ...
1
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1answer
65 views

Unity engine vs JS engine for browser game [closed]

I'm trying to do a browser based game and I don't want to create my own game engine, no sense in recreating the wheel. Should I use Unity as my game engine? Or should I focus on a more Javascript ...
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8answers
2k views

Physics-perfect (or somewhere near) 3d sound engine [closed]

I'm new to game programming, although I have some years of experience in console/web development. My problem is not so much that I can't find what I'm looking for, it's just that I don't have the ...
4
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1answer
250 views

Game Programming Gems series still of value? [closed]

Former Nintendo dev Mark DeLoura wrote a series of books called "Game Programming Gems". (http://www.satori.org/game-programming-gems/) Do these books still contain valuable concepts, considering ...
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2answers
104 views

Should I use DirectX 11 for 2d games or should I stick to DirectX 9? [closed]

After two years now I wanted to continue working on my sandbox project which I actually used to learn and experiment with various C++ features and DirectX. So far I have simple elements for 2d ...
2
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1answer
115 views

At what scale do I need to make tools? [closed]

In making a game, if I'm writing my own engine, at what sort of scale of team should I invest time in making a level editor tool? If it's just me on my own will it be worth it? Or when there's a team ...
8
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9answers
2k views

MMOs based on .Net? [closed]

Are there any real MMOs where the server engine is based on .Net?
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9answers
11k views

Entity communication: Message queue vs Publish/Subscribe vs Signal/Slots

How do game engine entities communicate? Two use cases: How would entity_A send a take-damage message to entity_B? How would entity_A query entity_B's HP? Here's what I've encountered so far: ...
6
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4answers
7k views

Is AGS outdated for Point & Click Adventures? [closed]

I am working on a Point and Click Adventure game being coded on the AGS engine, and just recently, the question of 'is this outdated?' has come up. I'll admit, AGS is a rather old, and kind of went ...
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4answers
666 views

Why should I use separate initialization and clean up methods instead of putting logic in the constructor and destructor for engine components?

I'm working on my own game engine and I am currently designing my managers. And I've read that for memory management using Init() and CleanUp() functions are better then using Constructors and ...
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2answers
81 views

If I released a game engine under GPL v3, can I specify what parts of their code can be released under their own license?

I have a few questions about what users of my engine could copyright in their own project. The way the engine would work would be that it would be a standalone program in Java that would load all of ...
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1answer
107 views

Render system should know entity manager?

in an ecs based game architecture, I think the entity manager is a "high-level" system, and the render system a "low-level" system. When I move my entity (that means I edit the position component of ...
0
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1answer
154 views

GPL Game Engine - What needs to be released under GPL?

I'm hoping I can clarify this issue. Note, a similar question has been asked here, but it doesn't really give a specific enough answer that I can comprehend at this point! :- How does one escape the ...
15
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1answer
692 views

How are entity systems cache-efficient?

Lately I've been doing a lot of reading on entity systems to implement in my game engine (C++/OpenGL). The two key benefits that I constantly hear lauded about entity systems are 1) the easy ...
8
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1answer
350 views

Implementing a Graph-Based Material System?

I'm trying to wrap my head around how material systems like this, this are implemented. These powerful and user-friendly, graph-like systems seem to be relatively common as a method of allowing ...
56
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8answers
21k views

Why don't more games use vector art?

It would seem to me that vector art is more efficient in terms of resources/scalability; however, in most cases I have seen artists using bitmap/rasterized art. Is this a limitation put on the artists ...
1
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1answer
129 views

Collision detection algorithms with images (2-Dimensions)

Lately, I have been researching different Collision methods, how to deal with multiple collisions and different types of bounding shapes, circles, rectangles, polygons and ellipsoids. Some common ...
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0answers
28 views

reduce/eliminate sql queries using server game engine/ram [closed]

I am playing around with php on server and html/js client for a game/experiment. Right now, real time data is being updated and queried from mysql but in the very near future I want to expand from a ...
183
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10answers
49k views

Fixed time step vs Variable time step

What is better for games when developing game loops, fixed time steps or variable time steps? What type of games are better with one or the other? Variable time steps: With variable time step, I ...
1
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1answer
761 views

Sony PSM SDK's 2D game engine

I have started with the Sony PSM SDK this week, I'm interested in creating a little 2D game and have been reading through the web about a so called "2D game engine" integrated into the SDK. Some ...
0
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1answer
47 views

Change one prefab without changing all prefabs

I have this code that will spawn in a lot of prefabs. It then edits the prefabs. The problem is that every time it changes a prefab it will reset and move all the other ones. Can you please explain ...
20
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7answers
7k views

How can one implement hot-swappable C++ modules?

Fast iteration times are key to developing games, much more so than fancy graphics and engines with truckloads of features in my opinion. No wonder many small developers choose scripting languages. ...
0
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0answers
38 views

Removing extra blank window when adding Jmonkey based sound to Java based game

I'm currently programming a simple run and jump game in java. I'm in the process of implementing sound and I'd like to use Jmonkey's sound because I'd like to eventually switch the whole game over to ...
2
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5answers
4k views

How do i choose what technology to use for a 2D game like Pokemon? [closed]

I apologize in advance for the wall of text about to come. I've had an idea for a game for a while now, and am stuck at step 1 of game development: Choosing a language/engine. I've read a whole ...
3
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5answers
187 views

Scripting APIs and scripting to make games

I am confused, what is scripting and what is scripting API? Is scripting the process of writing the game program? And is the scripting API (as in unity scripting API) the API provided by the game ...
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0answers
51 views

3D engine for technical application [closed]

I am looking for a 3D engine for a very technical application. I want to visualize orbits around bodies of the solar system, and thus need some way to easily display 3D Models and draw lines in 3D ...
4
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2answers
767 views

C++ property system interface for game editors (reflection system)

I have designed an reusable game engine for an project, and their functionality is like this: Is a completely scripted game engine instead of the usual scripting languages as Lua or Python, this uses ...