© Jørgen Steensgaard-Madsen, Copenhagen, 2006
Russian roulette                                                  

This game is life threatening, so we shall concentrate on an emulation. The key characteristic of the game is a gun that may be fired or not at the head of the current agent in the game. A survivor wins, a quitter is dishonored. This is pretty trivial from a game theoretical point of view, so we modify the game slightly so that a player pays a fixed fee to a common purse before making a choice to fire or skip. Players take turns and a player is dishonored only when unable to pay the fee. Initially players are assumed to start each with the same capital from which fees are drawn. A survivor pockets the contents of the purse and adds it to his capital.
An important point illustrated by the example is the duality between operation and clause as seen from definers and users, respectively. This is one key insight that lies behind the entire design of Howard languages.
The example can be seen as defining an interpreter for a domain specific language designed to express strategies for a simple game. Several other types of programs could similarly be organised as interpreters for input data expressed in a suitable domain specific language. Fortunately, programmers do not have to care about scanning and parsing, since this is obtained by the semantics of the INTERPRET operation of the HL:demo interpreter .


·Demo language
Implementation tool

General properties

·Russian roulette
A heterogeneous system


File translated from TEX by TTH, version 3.33.
On 18 Oct 2006, 16:47.
SourceForge.net Logo