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| =Overview= | | =Overview= |
− | This page describes the BZRobots Enhanced Protocol that is part of the Programmable Computer Player Client project for the [[Google Summer Of Code]]. | + | This page describes the [[BZRobots]] Enhanced Protocol that forms the internals of the BZFlag Programmable Computer Player Client |
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− | =Protocol Description= | + | =Description= |
− | The protocol is linebased, and works on a request-reply basis. Below is a table of all available requests. | + | The [[BZRobots]] client currently consists of two parts called the "backend" and the "frontend". The "backend" is a lightweight game client that communicates with BZFS. It also runs a lightweight line-by-line text-based server, on which commands can be sent to control a robot. The "frontend" is an instance of a BZAdvancedRobot, including the necessary parts to communicate with the "backend". |
− | The backend has something called a ''steady-state'' - this is basically when the backend is idle, and the tank likewise. Some commands will only work in this steady-state (because they will only make sense when the bot is not doing anything), and if one of these commands are sent when the bot is in ''active-state'' the backend will '''not reply''' until the backend has entered ''steady-state'' (and any commands sent after the first command are queued for handling until the ''blocking'' command has been handled). These commands are marked with "'''Yes'''" in the "Steady-state required?"-column.
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− | '''Frontend To Backend Messages'''
| + | ==Available Commands== |
− | {| cellspacing="0" border="1"
| + | See the [[BZRobots/API]] for the commands currently available to the BZRobots protocol. |
− | !Message syntax
| + | |
− | !Description
| + | |
− | !Steady-state required?
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− | !Implemented?
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− | |-
| + | |
− | |agent 1
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− | |Greets the backend.
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |bases
| + | |
− | |<explain>
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |constants
| + | |
− | |<explain>
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |execute <bot>
| + | |
− | |Runs a tick of the 'planned actions', and perhaps fires a shot (see setFire).
| + | |
− | |'''Yes'''
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |flags
| + | |
− | |<explain>
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |getDistanceRemaining <bot>
| + | |
− | |Gives a 'distanceRemaining'-reply with how much is left of the currently planned movement.
| + | |
− | |'''Yes'''
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |getGunHeat <bot>
| + | |
− | |Gives a 'getGunHeat'-reply with how many seconds are left of the gun cooldown.
| + | |
− | |'''Yes'''
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |getTickDuration <bot>
| + | |
− | |Gives a 'getTickDuration'-reply with how many seconds makes up one tick.
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |getTickRemaining <bot>
| + | |
− | |Gives a 'getTickRemaining'-reply with how many seconds are left of this tick.
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |getTurnRemaining <bot>
| + | |
− | |Gives a 'getTurnRemaining'-reply with how much is left of the currently planned turn.
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− | |'''Yes'''
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− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |mytanks
| + | |
− | |<explain>
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |obstacles
| + | |
− | |<explain>
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |othertanks
| + | |
− | |<explain>
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |setAhead <bot> <distance>
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− | |Sets planned movement (for next 'execute'-s) that moves 'distance' units.
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |setFire <bot>
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− | |Sets a planned shot (for next 'execute')
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |setResume <bot>
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− | |Overwrites and restores the bots current actions (distance and turn) from a previous call to setStop. This will fail if there are no previous setStop-calls. (If you call setAhead, setTurn etc before this, they will be overwritten unless setResume fails)
| + | |
− | |No
| + | |
− | !style="background-color: #ff3333"|No
| + | |
− | |-
| + | |
− | |setStop <bot> <overwrite>
| + | |
− | |Stores and clears the bots current actions (distance and turn). If you've previously called setStop and not setResume, this will fail unless you've set overwrite to true. Does not store & clear until you call 'execute'. (You can call setAhead, setTurn etc after this, and they will become the 'new' values, instead of 0.)
| + | |
− | |No
| + | |
− | !style="background-color: #ff3333"|No
| + | |
− | |-
| + | |
− | |setSpeed <bot> <factor>
| + | |
− | |Sets next actions speed, value between 0 and 1.0. (for future 'execute'-s)
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |setTickDuration <bot> <seconds>
| + | |
− | |Sets the duration of a tick, in seconds.
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |setTurnLeft <bot> <degrees>
| + | |
− | |Sets planned turn (for next 'execute'-s) that turns 'degrees' degrees to the left.
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |setTurnRate <bot> <factor>
| + | |
− | |Sets next actions turnrate, value between 0 and 1.0. (for next 'execute'-s)
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |shots
| + | |
− | |<explain>
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |-
| + | |
− | |teams
| + | |
− | |<explain>
| + | |
− | |No
| + | |
− | !style="background-color: #55ff55"|Yes
| + | |
− | |}
| + | |
| | | |
− | =See Also= | + | ==Legacy== |
− | [[BZRobots/About]] - Project Overview
| + | Eventually, in an effort to simplify the internals of BZRobots, the "frontend" and "backend" will likely be altogether removed, thereby eliminating the internal protocol. It is recommended to develop bots in C or Python using the published API, rather than attempting to develop a seperate client for the BZRobot backend. |
− | | + | |
− | [[BZRobots/Ideas]] - Feature suggestions / thoughts
| + | |
Eventually, in an effort to simplify the internals of BZRobots, the "frontend" and "backend" will likely be altogether removed, thereby eliminating the internal protocol. It is recommended to develop bots in C or Python using the published API, rather than attempting to develop a seperate client for the BZRobot backend.