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Updated Wildfire: Added a model for dropped retardant.

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This commit is contained in:
Anders Gidenstam 2012-08-18 00:06:03 +02:00
parent 41ef884c17
commit 368fcc7976
1 changed files with 42 additions and 4 deletions
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46
Nasal/wildfire.nas
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@ -3,7 +3,7 @@
## A cellular automaton forest fire model with the ability to
## spread over the multiplayer network.
##
## Copyright (C) 2007 - 2011 Anders Gidenstam (anders(at)gidenstam.org)
## Copyright (C) 2007 - 2012 Anders Gidenstam (anders(at)gidenstam.org)
## This file is licensed under the GPL license version 2 or later.
##
###############################################################################
@ -428,6 +428,7 @@ CAFireModels.MODEL = { # Model paths
"soot" : "Models/Effects/Wildfire/soot.xml",
"foam" : "Models/Effects/Wildfire/foam.xml",
"water" : "",
"retardant" : "Models/Effects/Wildfire/retardant.xml",
"protected" : "",
"none" : "",
};
@ -673,11 +674,40 @@ CAFire.resolve_water_drop = func (lat, lon, radius, volume=0) {
}
############################################################
# Resolve a fire retardant drop.
# For now: Assume that water makes the affected cell nonflammable forever
# and extinguishes it if burning.
# For now: Assume that the retardant makes the affected cell nonflammable
# forever and extinguishes it if burning.
# Note: volume is unused ATM.
CAFire.resolve_retardant_drop = func (lat, lon, radius, volume=0) {
return me.resolve_water_drop(lat, lon, radius, volume);
trace("CAFire.resolve_retardant_drop: Dumping retardant at " ~
lat ~", " ~ lon ~ " radius " ~ radius ~".");
var x = int(lon*60/me.CELL_SIZE);
var y = int(lat*60/me.CELL_SIZE);
var r = int(2*radius/(me.CELL_SIZE*1852.0));
var result = { extinguished : 0, protected : 0, waste : 0 };
for (var dx = -r; dx <= r; dx += 1) {
for (var dy = -r; dy <= r; dy += 1) {
var cell = me.get_cell(x + dx, y + dy);
if (cell == nil) {
cell = FireCell.new(x + dx, y + dy);
me.set_cell(x + dx, y + dy,
cell);
}
if (cell != nil) {
var res = cell.extinguish("retardant");
if (res > 0) {
result.extinguished += 1;
} else {
if (res == 0) result.protected += 1;
else result.waste += 1;
}
} else {
result.waste += 1;
}
}
}
append(me.event_log,
[SimTime.current_time(), "retardant_drop", lat, lon, radius]);
return result;
}
############################################################
# Resolve a foam drop.
@ -738,6 +768,8 @@ CAFire.save_event_log = func (filename) {
event.getNode("radius", 1).setDoubleValue(e[4]);
if (e[1] == "foam_drop")
event.getNode("radius", 1).setDoubleValue(e[4]);
if (e[1] == "retardant_drop")
event.getNode("radius", 1).setDoubleValue(e[4]);
# debug.dump(e);
i += 1;
@ -804,6 +836,12 @@ CAFire.load_event_log = func (filename, skip_ahead_until=-1) {
event.getNode("radius").getValue());
me.event_log[size(me.event_log) - 1][0] = e[0];
}
if (event.getNode("type").getValue() == "retardant_drop") {
me.resolve_retardant_drop(event.getNode("latitude").getValue(),
event.getNode("longitude").getValue(),
event.getNode("radius").getValue());
me.event_log[size(me.event_log) - 1][0] = e[0];
}
}
if (first) {
me.reset(1, SimTime.current_time());