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Limit the rate a participant can send wildfire ignite events at.

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This commit is contained in:
Anders Gidenstam 2010-07-09 14:57:37 +02:00
parent 4711f719ce
commit 229ee23103
1 changed files with 16 additions and 4 deletions
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20
Nasal/wildfire.nas
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@ -1,10 +1,9 @@
###############################################################################
## $Id$
##
## A cellular automaton forest fire model with the ability to
## spread over the multiplayer network.
##
## Copyright (C) 2007 - 2009 Anders Gidenstam (anders(at)gidenstam.org)
## Copyright (C) 2007 - 2010 Anders Gidenstam (anders(at)gidenstam.org)
## This file is licensed under the GPL license version 2 or later.
##
###############################################################################
@ -21,6 +20,9 @@ var trace = func {}
# Where to save fire event logs.
var SAVEDIR = getprop("/sim/fg-home") ~ "/Wildfire/";
# Maximum number of ignite events a single user can send per second.
var MAX_IGNITE_RATE = 0.25;
###############################################################################
## External API
@ -132,6 +134,7 @@ var fire_LOD_pp = "environment/wildfire/models/fire-lod";
var smoke_LOD_pp = "environment/wildfire/models/smoke-lod";
var LOD_High = 20;
var LOD_Low = 80;
var mp_last_limited_event = {}; # source : time
var score = { extinguished : 0, protected : 0, waste : 0 };
var old_score = { extinguished : 0, protected : 0, waste : 0 };
@ -189,10 +192,19 @@ var foam_drop_msg = func (pos, radius, volume) {
var parse_msg = func (source, msg) {
if (!getprop(MP_share_pp)) return;
var cur_time = systime();
var type = Binary.decodeByte(substr(msg, 5));
if (type == 1) {
var pos = Binary.decodeCoord(substr(msg, 6));
ignite(pos, 0);
var i = source.getIndex();
if (!contains(mp_last_limited_event, i) or
(cur_time - mp_last_limited_event[i]) > 1/MAX_IGNITE_RATE) {
var pos = Binary.decodeCoord(substr(msg, 6));
ignite(pos, 0);
} else {
printlog("warn", "wildfire.nas: Ignored ignite event from " ~
source.getNode("callsign").getValue());
}
mp_last_limited_event[i] = cur_time;
}
if (type == 2) {
var pos = Binary.decodeCoord(substr(msg, 6));