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

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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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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 ...
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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, ...
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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, ...
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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 ...
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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 ...
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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 ...
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462 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 ...
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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 ...
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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, ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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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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 ...
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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 ...
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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 ...
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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 ...
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How common are game engine bugs, and can I claim damages for them? [closed]

Are game engine bugs (in popular ones like Unreal and Unity, not some unknown ones) common? I know engines like Unreal, Source and Unity3D are well tested and maintained, but, for example, is there ...
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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 ...
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319 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 ...
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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, ...
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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 ...
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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 ...
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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 ...
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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 ...
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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. ...
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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?
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What are the benefits of using a 2D game engine on Android?

I have thought about just coding a 2D game on Android using just pure Java and the Android SDK, no engines like libdgx, cocoa-2dx attached. I don't know if I really need to use a game engine or not. ...
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1answer
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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 ...
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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 ...
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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 ...
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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 ...
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How would the entity system handle dependent components?

Currently, I am still learning about entity-component-system, and I have the following question concerning the components. How would the systems handle dependent components? For example, In a 2D ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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?
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How should I organize my matrices in a 3D game engine?

I'm working with a group of people from around the world to create a game engine (and hopefully a game with it) within the next upcoming years. My first task is to write a camera class for the engine ...
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1answer
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Does concurrency inherently introduce “randomness” into a game?

When a game is implemented with concurrency (as most games are), does this necessarily, by its very nature, introduce an element of randomness into the game that is outside of the players' control? ...
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Game Engine which can provide 360 degree projection for PC [closed]

I'm searching Game engine which can provide 360 degree real-time projection. I've already achieved this by using VBS2 Game Engine. (Ref.: ...
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What tool should I use to make this game? [closed]

A little background info: I'm just about to graduate university with a software engineering degree. I have a fair amount of experience with more "serious" programming languages (C++/Java/C#), plenty ...
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Beginning RTS game student project

I have experience with XNA and Unity3D. I have also built my own engine with Tao and C#. I am in last year of college and I want to make a small RTS game demo, nothing fancy I won't bother much with ...
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Which platform and what strategies can I use

There's this game, that I've been wanting to make for quite some time. It's a project that I've started and had to abandon in the middle a couple of times. However, this time I'm determined to finish ...