BZRobots/ShotsAndEnemies

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Revision as of 21:38, 19 February 2008 by Gilly (Talk | contribs) (New page: = Overview = This page lists some ideas and issues in delivering the shot and player info to Frontend from Backend. = Shots = == In BZAdvancedRobot == * getShots() -type of functions (g...)

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Overview

This page lists some ideas and issues in delivering the shot and player info to Frontend from Backend.

Shots

In BZAdvancedRobot

  • getShots() -type of functions (get all shots, shots in certain volume, ...) return a list of shots (class Shot)

In Shot

  • getPosition(dt) -return position after dt seconds as is assumed
  • getType() - normal? gm? laser? ...
  • getShooter() - who shot it? at least own shots should be distinguished because on no-rico servers we could just throw them away when doing collision forecasts
  • unique identifier so that frontend and backend can refer to individual shots: can be composed using player id and shot id

Players

About the current Tank system

  • We can only get all the players at the same time and all the information is sent too
  • Sending callsigns there is a problem with spaces in callsigns (i haven't tested it but I'd assume so)

What could be instead?

In BZAdvancedRobot

  • getPlayers() -type of functions return a list of players (class Tank)

In Tank

  • getPosition(dt) -return assumed position after dt seconds, "Haha meet my bullet there!"
  • getVelocity() -return current velocity, "So that's the speed you got"
  • getAngularVelocity() -return current angular velocity, "It's turning to face us! Fire!"
  • getHeading() -which way the bot is heading? "ARGH It's aiming us!"
  • unique identifier so that frontend and backend can refer to individual players: we got playerid

Issues

Functions in Tank and Shot will have to call backend. Should we make a separate request for each of them or some kind of general "GetShotInfoRequest <command> [arguments]" ?

Are there functions ready in bzflag to ask for assumed positions of tanks or bullets after dt seconds without updating them first?