139 lines
4.5 KiB
Text
139 lines
4.5 KiB
Text
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Cellular Automata based wildfire for FlightGear/CVS
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---------------------------------------------------
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Copyright (C) 2008 - 2009 Anders Gidenstam
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* These programs are free software; you can redistribute them and/or modify
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* them under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Usage
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-----
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A fire is started by calling wild_fire.ignite(pos) where pos is a
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valid geo.Coord instance.
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Example: starting fires by ctrl+shift+click:
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Put this Nasal fragment somewhere where it is run at startup.
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(E.g. in a <nasal><MyStuff><script>...</script></MyStuff></nasal>
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block in preferences.xml.)
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setlistener("/sim/signals/click", func {
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if (__kbd.shift.getBoolValue()) {
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if (__kbd.ctrl.getBoolValue()) {
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var click_pos = geo.click_position();
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wildfire.ignite(click_pos);
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}
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}
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});
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Configuration properties
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-----------------------
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These properties can be set at runtime, in preferences.xml or in any
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other way supported by FlightGear.
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/environment/wildfire/enabled : bool
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Enables/disables the whole WildFire module.
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On disable the current state is lost. Can be used to reset WildFire.
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/environment/wildfire/share-events : bool
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Enables/disables sending and receiving of fire events over the
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multiplayer network.
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/environment/wildfire/fire-on-crash : bool
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If true a fire will start if the aircraft crashes.
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/environment/wildfire/report-score : bool
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Report the result of fire fighting.
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/environment/wildfire/models/enabled : bool
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Enables/disables rendering of the 3d models.
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(That is, fire, smoke, soot and foam.)
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/environment/wildfire/save-on-exit : bool
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If set the current log of Wildfire events is saved in
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~/.fgfs/Wildfire/fire_log.xml .
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/environment/wildfire/restore-on-startup : bool
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If set Wildfire will load and execute the events in
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~/.fgfs/Wildfire/fire_log.xml . This recreates the fire state
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as it where when the log was saved.
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NOTE: A long event log or one that covers a long period of time will take
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a a lot of time to recreate.
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Storing and reloading of the CA state, as opposed to the event log, is not
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supported yet.
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API
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---
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ignite : func (pos, source=1)
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pos - fire location : geo.Coord
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source - broadcast event? : {0, 1}
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Start a fire.
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resolve_water_drop : func (pos, radius, volume, source=1)
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pos - drop location : geo.Coord
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radius - drop radius m : double
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volume - Not used : double
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source - broadcast event? : {0, 1}
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Extinguishes any fires in the cells within r of pos and
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makes the cells nonflammable.
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resolve_retardant_drop : func (pos, radius, volume, source=1) {
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pos - drop location : geo.Coord
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radius - drop radius m : double
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volume - Not used : double
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source - broadcast event? : {0, 1}
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Identical to resolve_water_drop.
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resolve_foam_drop : func (pos, radius, volume, source=1) {
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pos - drop location : geo.Coord
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radius - drop radius m : double
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volume - Not used : double
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source - broadcast? : {0, 1}
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Extinguishes any fires in the cells within r of pos and
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makes the cells nonflammable and foamy.
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load_event_log : func (filename, skip_ahead_until=-1)
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filename - getprop("/sim/fg-home") ~ "/Wildfire/" ~ filename
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skip_ahead_until - skip from last event to this time : double (epoch)
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fast forward from skip_ahead_until
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to current time.
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x < last event - fast forward all the way to current time (use 0).
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NOTE: Can be VERY time consuming.
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-1 - skip to current time.
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Loads an event log.
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The skip_ahead_until argument can be used for synchronizing a restored
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fire state among multiple players.
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save_event_log : func (filename)
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filename - getprop("/sim/fg-home") ~ "/Wildfire/" ~ filename
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Saves an event log.
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print_score = func
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Print a summary of the current wildfire state.
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/Anders
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