Game Design Document

March 15, 2010


Before creating your game it is a good idea to write a games design document. These can be quite large documents covering all aspects of the game, however, since you are developing a simplifed prototype a shortened version will do for this stage.

Your design document should include the following headings

Description

Game objects

Sounds

Controls

Game flow

Levels

Here is an example from a Game Maker tutorial

1945 design document

Description

In this game you control a plane flying over a sea. You encounter an increasing number of enemy planes that try to destroy you. You should avoid these or shoot them. The goal is to stay alive as long as you can and to destroy as many enemy planes as you can.

Game objects

The background is formed by a scrolling sea with some islands. The player’s plane flies over this sea. You can shoot bullets that destroy enemy planes. There are four types of enemy planes: a plane that you encounter and should be destroyed, a plane that fires bullets downwards, a plane that fires bullets towards the player’s plane, and a fast enemy plane that comes from behind rather than from the front.

Sounds

There are some explosion sounds and there is some background music. Controls The player controls the game with the arrow keys. With the space key you fire a bullet. Only one bullet can be fired every five steps.

Game flow

The player immediately jumps into the game. The player has three lives. When all lives are gone a high-score table is shown. Pressing the (help) key will give a brief explanation. Pressing the key will end the game.

Levels

There is just one level, but more and more enemy planes will arrive: first only the easy type but later the more difficult types.

Microphone Basics

March 14, 2010


Some topics related to understanding how microphones work and typical applications

Shure Guides

How to buy a microphone – simple guide relating technical characteristics to suited applications. Covers:-

  • Dynamic – Condenser comparison
  • Frequency response
  • Pick up patterns

Flash demo of different mics, different polar patterns, different distances. Needs decent headphones.

Distance factor in context of placement for different polar patterns relative to a sound source.

Microphone reach – discusses the  effect of ambient sound and polar patterns on microphone reach.

Difference between dynamic and condenser microphones – Dynamic and condenser describe the operating principal used in a microphone.

The proximity effect – Why do the bass frequencies increase as the microphone gets closer to the sound source?

Also

The Microphone – Data site has a useful library covering aspects such as

  • Microphone choice
  • Wind and vibration noise
  • Pre- amps and impedence
  • Cables

Choosing the right mic is a good place to start for a basic understanding of various mic applications.

Mics, pre-amps and impedence – why different combinations sound different.

Soundfield

High end mic systems used in OBs,  Film and TV production

Example of football OB application

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Game Sprites

March 4, 2010


Defined by Wikipedia:-

Sprites were originally invented as a method of quickly compositing several images together in two-dimensional video games using special hardware. As computer performance improved, this optimization became unnecessary and the term evolved to refer specifically to the two dimensional images themselves that were integrated into a scene. That is, figures generated by either custom hardware or by software alone were all referred to as sprites. As three-dimensional graphics became more prevalent, the term was used to describe a technique whereby flat images are seamlessly integrated into complicated three-dimensional scenes.

A graphic image that can move within a larger graphic. Animation software that supports sprites enables the designer to develop independent animated images that can then be combined in a larger animation. Typically, each sprite has a set of rules that define how it moves and how it behaves if it bumps into another sprite or a static object.

Sprite Art

Useful tutorials from the Game Sprites wiki.  They use Graphics Gale  an excellent, free sprite editor. You can download the free version of Graphics Gale here.
Downloads and tutorials from the Sprite Database

Sprite Sheets or Tile Sets

See related article

Game Maker

March 4, 2010


Interesting application for making different styles of games without having to work at code level.

Do you want to develop computer games without spending countless hours learning how to become a programmer? Then you’ve come to the right place. Game Maker allows you to make exciting computer games, without the need to write a single line of code. Making games with Game Maker is a lot of fun.

Using easy to learn drag-and-drop actions, you can create professional looking games within very little time. You can make games with backgrounds, animated graphics, music and sound effects, and even 3D games! And when you’ve become more experienced, there is a built-in programming language, which gives you the full flexibility of creating games with Game Maker. What is best, is the fact that Game Maker can be used free of charge.

You can do anything you want with the games you produce, you can even sell them! Also, if you register your copy of Game Maker, you can unlock extra functions, which extend the capabilities of the program. Game Maker comes preloaded with a collection of freeware images and sounds to get you started.

YoYoGames

Hover_tank_3d

Hover Tank 3D
Added: 25 April 2007
By: FredFredrickson


As defined by Wikipedia:-

“A tile set (sometimes called a sprite sheet) is collection of smaller images called tiles (typically of uniform size) which have been combined into a single larger image. Tile sets are often used in 2D video games to create complex maps from reusable tiles within the set. When a tile set based map is displayed, the tiles that are stored within it are used to reassemble the map for display.”

You can download complete tilesets covering various well known games and themes, for example:-

videoGameSprites.net

Reiner’s Tilesets

Dragon quest

Or you can try searching for “sprite galleries”

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Tile map editors

March 4, 2010


Can be used to create the graphics for your game levels.  Here are two examples

Mappy

A utility for creating flexible maps for 2D and 3D tile based games

Tiled

Tiled is a general purpose tile map editor. It’s built to be easy to use, yet flexible enough to work with varying game engines, whether your game is an RPG, platformer or Breakout clone. Tiled is free software and written in C++, using the Qt application framework. The main features in a nutshell:

  • General purpose tile map editor with XML-based map format
  • Supports orthogonal and isometric maps
  • Custom objects can be placed with pixel precision
  • Full undo/redo and copy/paste support
  • Add custom properties to tiles, layers, objects or the map
  • Automatically reloads tilesets when changed externally
  • Resize or offset your tile map later as needed
  • Efficient tile editing tools like stamp and fill brushes

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Understanding Games

March 3, 2010


Useful set of  tutorials  from Pixelate

Understanding Games is series of four games explaining the basic concepts of video games. The tutorial-style episodes deal with rules, motivation, learning and identification in video games. The player is guided through each episode by the narrators Bob and Bub, who explain core concepts of games to the player. The player can experience these concepts directly while playing the integrated games.

Episode 1

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