30
votes
8answers
3k views

Profanity filter for an MMO chat

We are developing an MMO using Smartfox Server. The targeted audience is kids from 7 -12 years. There is a global chat option in this MMO. Whatever the user types in a textbox get displayed next to ...
30
votes
12answers
2k views

Alternates to scratch damage to solve combat deadlocking

Scratch damage is a game mechanic whereby any successful attack always does some minimal amount of damage. This is often used in subtractive combat systems, where the defense is subtracted directly ...
30
votes
8answers
21k views

How can I make a peer-to-peer multiplayer game?

How can I make a p2p multiplayer game? I would like to have a server-less multiplayer game. But then, how all the clients know each other? Why the p2p-protocol is so famous in file transfer but not ...
30
votes
7answers
1k views

Which purpose do armor points serve?

I have seen a mechanic which I call "armor points" in many games: Quake, Counter Strike, etc. Generally, while the player has these armor points, he takes less damage. However, they act in a similar ...
30
votes
6answers
5k views

How can I design good continuous (seamless) tiles?

I have trouble designing tiles so that when assembled, they don't look like tiles, but look like a homogeneous thing. For example, see the image below: Even though the main part of the grass is ...
30
votes
3answers
10k views

Difference between orthogonal map and isometric map

I am laughing at myself ignorant on this. Google didn't produce an obvious answer. Could someone explain what orthogonal map and isometric map are, and how they are different?
30
votes
6answers
1k views

Does inflating scores make players happier? [closed]

I realize that this will depend on a game-to-game, situation-to-situation basis and that this is not a very technical question, but I remember hearing in a tech podcast a few years ago that inflated ...
30
votes
8answers
2k views

Establish a person's genuine interest in game programming

I teach on a 3rd level, 4 year games programming degree (B.Sc. in Computer Games Development). We find that new and prospective students often conflate interests and abilities in game-playing, ...
30
votes
6answers
8k views

How can I make a good-looking explosion particle effect?

I'm not much of an artist, but I'm trying to make decent particle effects in a 2.5D game. I'm making a replica of Wii Play's "Tanks" and I can't quite get the explosions to look good. I'm not going ...
30
votes
2answers
2k views

How'd they do it: Destructible environments in BF:BC2 and BF3

How did the folks at Dice create the destructible environments in the more recent Battlefield games? Did they just assemble the buildings out of predefined sub-regions that break apart when there is ...
30
votes
4answers
2k views

What are some common ways to generate revenue from a free game?

When creating a free game what revenue options are there and how successful are they? What are the pros and cons of different revenue models such as ad-supported, freemium, partnerships, ...
29
votes
5answers
2k views

24-Bit Colordepth not enough?

I noticed that in very soft gradients, the 24-Bit colordepth is not enough as you can see the transitions of the color. This pops out the most in dark scenes or night skies. Why doesn't anybody ...
29
votes
11answers
2k views

What is the most effective way to work with a friend on the same game?

We need something where we can check files out, edit them, check them back in and then build from the them. Something like Google Docs where we can edit the same code at the same time would be a ...
29
votes
4answers
2k views

Why does my object move faster at 45 degrees than at 90 degrees?

I have objects in my game that move faster at 45 degrees then at 90 degrees. Each object has Point (x,y) position Vector2D (x,y) direction Int speed And what I do during a update is that new ...
29
votes
9answers
4k views

Should I continue studying OpenGL or just switch to DirectX to give me a better chance of landing a job in the game industry? [closed]

I've been learning graphics programming for some time now using OpenGL and Linux. I'm pretty familiar with most of the concepts, but I would really like to further my knowledge and eventually pursue a ...
29
votes
11answers
1k views

How to encourage players to level up multiple characters? [closed]

In my game, it is possible to make multiple characters. You can make as many as you desire. What I usually do (and almost all players do) is just make a single character and level it up a LOT, and ...
29
votes
8answers
11k views

Are there any open source projects for car engine sound simulation? [closed]

I have been thinking how to create realistic sound for a car. The main sound is the engine, then all kind of wind, road and suspension sounds. Are there any open source projects for the engine sound ...
29
votes
4answers
2k views

What has stopped MMORTS games from being successful? [closed]

We all know that there have been attempts to create commercially successful MMORTS games, but all have failed. By failed, I mean that they didn't get really popular in the gaming community. Why is ...
29
votes
4answers
18k views

Vertex Array Object (OpenGL)

I've just started out with OpenGL I still haven't really understood what Vertex Array Objects are and how they can be employed. If Vertex Buffer Object are used to store vertex data (such as their ...
29
votes
10answers
5k views

Alternative to Game State System?

As far as I can tell, most games have some sort of "game state system" which switches between the different game states; these might be things like "Intro", "MainMenu", "CharacterSelect", "Loading", ...
29
votes
3answers
3k views

Maximum audio delay before the player notices?

Given some event in a game, what is the maximum delay to producing audio that the player will properly associate the audio with that event (and not perceive lag)?
29
votes
3answers
3k views

Several classes need to access the same data, where should the data be declared?

I have a basic 2D tower defense game in C++. Each map is a separate class which inherits from GameState. The map delegates the logic and drawing code to each object in the game and sets data such as ...
29
votes
6answers
3k views

what is the standard solution to pathfinding towards a moving target?

I am working on a 2D RTS like game, basic A* works perfectly for moving a unit from point A to point B. But now I facing the continuous path-finding problem, like A attack a moving object B, call A* ...
29
votes
9answers
7k views

How can I prevent false score reports to global highscore tables?

Browser and mobile games commonly have global highscore tables. It's also common for those tables to contain scores of 2,147,483,647 — where people have figured out the webservice call that ...
29
votes
7answers
22k views

most efficient AABB vs Ray collision algorithms

Is there a known 'most efficient' algorithm for AABB vs Ray collision detection? I recently stumbled accross Arvo's AABB vs Sphere collision algorithm, and I am wondering if there is a similarly ...
29
votes
2answers
2k views

Random/Procedural vs. Previously Made Level Generation

What the advantages/disadvantages of using random/procedural generation vs. pre-made levels? There seems to be few that I can think of, other than the fact that items may be a problem to distribute ...
28
votes
15answers
5k views

Interesting/Innovative Open Source tools for indie games [closed]

Just out of curiosity, I want to know opensource tools or projects that can add some interesting features to indie games, preferably those that could only be found on big-budget games. EDIT: As ...
28
votes
14answers
3k views

Why is there a lack of games for Linux? [closed]

What is wrong with the Linux/*nix family for games? What makes the development of games for this platform too slow compared to Windows or even OS X?
28
votes
9answers
18k views

Texture packing algorithm

What is a good texture packing algorithm? Technically, bin packing is NP-hard, so a heuristic is what I'm really after.
28
votes
9answers
3k views

Why should I choose to design a health bar rather than heart containers?

When designing any hero-based game, be it adventure, RPG, brawler, or similar, you eventually need to decide on your health system. Barring any regenerative systems with zero UI (like Call of Duty), ...
28
votes
4answers
2k views

Is there an algorithm to detect the “mainland” on a 2D map?

On this map, the "mainland" is all the land that can be connected to the center of the map in the four cardinal directions (north, south, east, west -- not diagonally). I would like to detect the ...
28
votes
4answers
5k views

Proper OO game engine design: how to parcel responsibilities

(note - I don't have the reputation to create new tags, so mod action may be needed to re-tag) I'm in the midst of developing a 2D sprite-based game for Windows 7 Phone using XNA. The training and ...
28
votes
2answers
4k views

How can I generate Worms-style terrain?

I'm working on a Worms-styled game and want to generate some terrain procedurally. I've previously done a lot of terrain generation using perlin noise, and this is what I started out using for this ...
28
votes
6answers
5k views

Implementing a wrapping wire (like the Worms Ninja Rope) in a 2D physics engine

I've been trying out some rope-physics recently, and I've found that the "standard" solution - making a rope from a series of objects strung together with springs or joints - is unsatisfying. ...
28
votes
3answers
9k views

How does hardware tessellation work?

I would just like someone to explain in relativly clear terms how hardware tessellation works considering it is the new buzzword with DX11. Thanks.
28
votes
1answer
30k views

What is the correct order to multiply scale, rotation and translation matrices for a proper world matrix?

Assume DirectX as the platform, if that is important. (Pretty sure it isn't) Assuming I have a proper scale, rotation and translation matrix, in what order do I multiply them to result in a proper ...
28
votes
6answers
8k views

About floating point precision and why do we still use it

Floating point has always been troublesome for precision on large worlds. This article explains behind-the-scenes and offers the obvious alternative - fixed point numbers. Some facts are really ...
28
votes
7answers
7k views

Can you access Kinect motion sensing from XNA?

As of 2010 with the release of XNA 4.0, if I buy an Xbox 360 with Kinect will I be able to access its motion sensing data with the XNA game I'm developing? Or is this only restricted to C++ developers ...
28
votes
3answers
7k views

How do you approach resolution independence in raster based graphics content?

Those games that are not fortunate enough to run on a locked platform spec, like handhelds, need to run across various resolution formats and aspect ratios. In a 3D game you might have a HUD or menu ...
27
votes
9answers
9k views

What is a “2.5D” environment?

I don't understand the meaning of the term "2.5D." I'm specifically confused about the difference between 2.5D and 3D environments, even though I've read different definitions and articles about both. ...
27
votes
11answers
5k views

Do 2D games have a future? [closed]

I'm currently working on a 2D soft-body physics engine (since none exist right now -_-), but I'm worried that there's no point to spending what will most likely be years on it. Although I love ...
27
votes
8answers
4k views

How can the lategame in a 4X game be made more exciting?

I played a lot of different 4X games lately (eXplore, eXpand, eXploit, eXterminate, like the Civilization series, for example), and noticed that most of them suffer from the same problem: As soon as ...
27
votes
12answers
9k views

How are sound effects made?

My friend and I are finishing up our first game right now and I have just discovered that even though he can make some decent music tracks, he has no idea how to make a sound effect. An explosion, for ...
27
votes
8answers
2k views

In-Game Tutorial Decisions

I'm working on a game with confusing mechanics such as energy storage and the coolant temperature. What is the best way to get a new player learned quickly? What are the pros and cons of different ...
27
votes
5answers
1k views

Why do GPUs require game specific drivers?

PC GPU driver updates often cite improvements made to performance of specific, recently released games. Why is this game-specific updating needed? How do the game-specific changes interact with the ...
27
votes
4answers
2k views

Can I run into legal issues with random names?

I'm currently building a game whose NPC's are going to be assigned a random gender and a random name for the right gender. To do this I will be using a "database" of names (actually a text file with ...
27
votes
6answers
4k views

Why don't all games permit changing the field of view?

This is less of a question aimed at developing a game and more about the technology behind it. A number of gaming journalists and pro gamers (both on the tournament and the home entertainment sector) ...
27
votes
4answers
2k views

If two objects interact, what holds the interaction code?

Think of a bullet and an enemy, or the player and the floor. If these objects interact, what holds the interaction code?
27
votes
1answer
6k views

Difference between “staggered” isometric and “normal” isometric tilemaps?

The Tiled Map Editor v0.9 recently added support for staggered tilemaps in addition to its usual isometric tilemap support. What are the exact technical differences between these two types of ...
27
votes
6answers
7k views

What 3D level development tools are available to indie developers? [closed]

People who build in Unity or UDK have immediate access to a 3D level editor. People who build their games in XNA or from scratch have no such thing. I'm looking for 3D level development tools ...

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