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

learn more… | top users | synonyms (1)

3
votes
1answer
5k views

C++ FBX Animation Importer Using the FBX SDK

Does anyone have any experience using the FBX SDK to load in animations. I got the meshes loaded in correctly with all of their verts, indices, UV's, and normals. I am just now trying to get the ...
3
votes
1answer
892 views

Where can I download the Doom Classic source code, the iOS port?

Doom classic source code for iOS was released by id software, and has a download link on this page: http://www.idsoftware.com/doom-classic/. The issue is that the url doesn't work, I sent an email to ...
3
votes
1answer
334 views

Approximating walking physics via simpler sliding physics

I am modeling walking insects. I implement them as cuboids and use forces (including friction and drag), to control motion. However, the movement characteristics of this 'sliding box' physics don't ...
3
votes
1answer
154 views

Chess engine on which to apply a custom-made OpenGL skin

Is there any opensource chess engine that I can use to practice my OpenGL skillset? I think it would be a neat exercise.
3
votes
1answer
253 views

Swapping graphics engines

Is it possible, or even feasible, to have graphics engine completely decoupled from game logic? Why I ask is because I want to start working on a game (I'm a complete beginner in game development, ...
3
votes
5answers
198 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 ...
3
votes
1answer
106 views

Field of view determination with partially opaque cells

I'm currently implementing the field of view of a player in a 2D-grid based game. I've chosen a standard ray tracing algorithm because he really fits the features needed in my game. However, the ...
3
votes
2answers
3k views

Managing resources

I have a resource manager that loads and returns resources. Currently I just return shared_ptrs for the resources I create, but I'm thinking about going over to using something like simple handles, ...
3
votes
1answer
506 views

Best approach to simple per-fragment lighting - OpenGL

I am programming a graphics engine for an old game. The game uses a BSP geometry which I have rendering perfectly. For it's lights however, it simply has light instances with the standard x, y, z, ...
3
votes
1answer
129 views

Prewarming in particle engines

How is prewarming in particle engines made? I have a particle engine and need to support this, which is a feature I have already seen in Unity. Is it done at compilation, like informations stored ...
3
votes
1answer
182 views

Using allocators for different systems

I am going over the memory architecture for my game and even though I know my memory budgets may not be final, I at the point where I can start using them in a general sense. I know that I will need ...
3
votes
1answer
475 views

What is the best way to code the XNA Game Server for FPS game?

I'm writing a FPS XNA game. It gonna be multiplayer so I came up with following: I'm making two different assemblies — one for the game logic and the second for drawing it and the game irrelevant ...
3
votes
1answer
466 views

Engine Design for Rendering Reflections

I have a very simple game engine. A GameObjectManager stores a collection of all the GameObjects. When I want to render, I just call GameObjectManager.render() from the rendering context. This works ...
3
votes
1answer
2k views

Game engine for turn based wargame [closed]

I would like to ask for game engine recommendations for turn based wargame development. I would like my engine to support; hex maps agents on hex rule based ai for the agents terrain on hex ...
3
votes
1answer
940 views

2D game engine for UI - suggestion needed

I am planning on making a simple real-time strategy game from the series Stargate Universe. For those who don't know, in the series' center is a spaceship called Destiny. It has a nice control room, ...
3
votes
1answer
151 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 ...
3
votes
1answer
1k views

How to program dynamic touch events that scale according to device?

When using openGL to build a UI for my prototype I find that that I am still required to use pixels to capture touch events. To make matters worse the Android Docs make this subject slightly ...
3
votes
3answers
181 views

Collision and Graphics integration

I'm a little confused about the integration between collision and graphics. They both need to share the same position in the world. The most obvious choice is the center of the entity, which is good ...
3
votes
1answer
279 views

Resource management question. Resource containing resource

I have resource manager handling as usual resource loading, unloading etc. With resources such an images, mesh no problem. But what to do when I have resource containing other resource (for example ...
3
votes
2answers
2k views

Looking for an Open Source Game Engine with Crowd Simulation [closed]

I am looking for a game engine for my school project on computer graphics. There are specific requirements that I do not want to implement by myself, since they are irrelevant for the grade, but ...
3
votes
1answer
348 views

Vector fields and game engine

It exist a game developed with a vectorfield game engine? What I mean is that instead of calculating intersections, one could calculate the vector field generated for example by gravity, and for ...
3
votes
1answer
879 views

Fundamental physics component(s) in component-based game engine

What are the "smallest" physics components in your component-based game engine? Would it make sense to create something like Positionable, Rotatable, Movable, Collidable and combine them the way you ...
3
votes
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 ...
3
votes
0answers
140 views

Is there a logic game engine to be used in OS game? [closed]

Ludocore is a paper where a research on a logic game engine is presented. For game I cooperate on -- Opendungeons -- it would seem fine to have separate abstract layer of code which would deal only ...
3
votes
0answers
214 views

Does somebody know of a testcase(s) of libRocket [closed]

Today I implemented the interfaces for libRocket in my engine using OpenGL 3.3. I got a standard RML file and some fonts and images which where needed in this RML file. It seems that the page/RML I'm ...
3
votes
2answers
1k views

How to fix issue with my 3D first person camera? [closed]

My camera moves and rotates, but relative to the worlds origin, instead of the players. I am having difficulty rotating the camera and then translating the camera in the direction relative to the ...
3
votes
0answers
215 views

How can I stop my Jitter physics meshes being offset? [closed]

I'm developing a C# game engine and have hit a snag trying to add physics. I'm using XNA for graphics and Jitter for physics. I am trying to split the XNA model into it's meshes, then create a ...
2
votes
7answers
1k views

Graphical quality of open source vs. commercial games

I'm new in Game development. I have researched many open source games. But I have not met any open source game which has high quality graphics, comparable to these found in commercial games. What is ...
2
votes
2answers
328 views

About making damage between units

I am making my own Tower Defence game engine. I havent built one before and I don't know lot of stuff how games work. I will take Starcraft as an example. You have a marine shooting a zergling from ...
2
votes
2answers
808 views

Choosing an engine for a new game [closed]

Right now, I'm planning a new FPS single-player Half-Life 2/Call of Duty: Black Ops/Crysis 2-like, and I'm trying to determine what game engine should I use. Right now, my team is me, as a programmer, ...
2
votes
4answers
2k views

Modifier System C#

I am trying to figure out a system that can easily modify objects on the fly. For example, lets say I have an Entity2D that inherits from Entity. Entity2D has a Position property. Now I have a ...
2
votes
3answers
1k views

Is it efficient to use lua to store game data?

I'm new to lua and I'm wondering, is it efficient to use lua to store game data (such as monster's description, spells). My problem is, when I try to create a monster object every second, I have to ...
2
votes
4answers
1k views

Templates and game consoles

I have overhead in several times that templates should not be used on video game consoles, however, I never heard why or understood why. Why shouldn't templates be used on video game consoles, and if ...
2
votes
3answers
462 views

Should I use OpenGL while working with C++? [closed]

I am completely new to programming and game development for that matter. I am using the C++ software to create my Game Engine with the help of a beginners guide. I noticed it has a OpenGL option when ...
2
votes
3answers
6k views

Game engine like Unity 3D that allow me to use .NET code [closed]

I've been looking at Unity 3D for developing a 3D PC game and I really like the scene editor and how it simplifies the process of constructing 3D scenes, managing assets, animations, transitions etc. ...
2
votes
2answers
3k views

What's the difference between a Game Engine and a Physics Engine?

What's the difference between a Game Engine and a Physics Engine? How do they work together, and what's the meeting point between them?
2
votes
5answers
5k 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 ...
2
votes
5answers
2k views

Need opinions: is it worth making component based entity system? [closed]

I've been reading about component based entity-system for couple days now and I'm not quite sure if it is worth implementing in my next game. I haven't started making the game yet, but I have bunch of ...
2
votes
1answer
262 views

How should I traverse entities and components for their per-frame updates?

I am implementing a simple entity/component-based engine in C++ and am unsure about the best way to store references to entities/components and what the best way to traverse them each game step would ...
2
votes
2answers
1k views

What tools/software are used to make the environments/levels/maps in games? [closed]

This question has probably been answered before but I've not been able to find the answer, since I'm not able to frame the question with brevity. So the whole question is :- The worlds/levels that ...
2
votes
1answer
479 views

Is my engine concept a good one?

I'm currently writing a generic engine for my incoming games. I have developed few games already but never with the same "base" and my code was/is quite a mess. The idea was to create an engine that I ...
2
votes
3answers
2k views

Building an XNA Game Engine: Loading Sprites outside of LoadContent()

I'd like to build an engine in XNA, primarily for a 2D RPG. At first, I began abstracting out some classes and built a Sprite class which wrapped a Vector2 and a Texture2D, and tried loading in ...
2
votes
3answers
3k views

Cross-platform, free (for commercial use) C/C++ 2d game library or rendering engine? [closed]

i need a C/C++ engine that should be really cross platform (or at least windows, android, and iphone). The 2d engine should be written in C or (better) C++, should permit the rendering of animated ...
2
votes
5answers
656 views

Behavioral AI from a game engine for character conversation modelling(with examples from Assassin's Creed II)

I want to use the behavioral AI from a game engine for character conversation modelling. Most game engines provide very good graphics pipeline like here , but I want to use the AI part like shown in ...
2
votes
3answers
148 views

How do game engines mitigate CPU cost for many trigger zones & entities? [closed]

It's a rather simple question, but a somewhat fundamental in computing in general. Let's say we have a player controlled character in an open world. The world is large. In this game-world we have a ...
2
votes
1answer
317 views

Handling game-state updates in an MMO while the player is logged out

I have a plan to build MMO strategy game like Goodgame Empire or Travian for windows phone. I want program it in C# Monogame (because I have some good experiance with it). But I still can't figure ...
2
votes
1answer
378 views

What makes games responsive to user input?

Many games have been praised for its responsive gameplay, where each user action input correspond to a quick and precise character movement (eg: super meat boy, shank...) What makes those games ...
2
votes
2answers
742 views

Is there a standard way to store 3D meshes to easily communicate between libraries?

In a 3D game lots of different systems need to know about geometry data, however the only way they seem to be able to agree to on in representing it by an array of triangles. Can anyone recommend a ...
2
votes
2answers
7k views

Find all Game Objects with an Input string name (not Tag)

I'm trying to mimic FindGameObjectsWithTag with FindGameObjectswithName. I know using tags is faster, but I'm trying create a way to search for objects I spawn with a child object I name on ...
2
votes
1answer
272 views

Some app are very primitive bitmap types of graphics, but some are so realistic, such as Cut The Rope — how does it do it?

Cut the Rope is so smooth and real life like, while some apps are very "bitmap" like. How does Cut the Rope do such realistic animation?