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A.i. System In Arcade Games

The first arcade games were built on discrete logic and were strictly based on competition between the players. In those days there wasn’t any A.I. system.

Peculiar methods have been used in the arcade games. A [popular system of managing an NPC in the game was by scripting.

Path finding is another common A.I. system that has been used in the real time strategy games. Path finding works by calculating how to get an NPC from one place to another after considering the terrain and obstacles.

Games like Quake and Pursuit based all the enemy moves on particular stored patterns. The space invaders further refined this movement by adding in-game events which were dependent on the hash functions.

This produced more varied and complex enemy movements.

Pac-Man not only adopted this technology but also added different personalities for each ghosts.

Even hough the ghost movements in Pac-Man felt random, it was a cleverly scripted and well disguised action.

1990s saw the emergence of finite state machines. The arcade racing games were powered by a ‘rubber banding’ A.I. system.

If the computer decided the opponents “fall behind”, they received a superb boost allowing them to catch up.

The system works to enable human players to catch up if they fall behind. A good arcade shooting game must be programmed to provide a large rule base - list of NPC options like attack long range, call for help, flee etc.

The trick lies in applying a random factor to choose from this base factor. This has provided an increased feeling of intellect and developed the fun quotient.

By: laxmikeshav

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