--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/orpg/dieroller/rollers/srex.py	Thu Dec 10 10:53:33 2009 -0600
@@ -0,0 +1,197 @@
+## a vs die roller as used by WOD games
+#!/usr/bin/env python
+# Copyright (C) 2000-2001 The OpenRPG Project
+#
+#       openrpg-dev@lists.sourceforge.net
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+# --
+#
+# File: srex.py
+# Original Author: Michael Edwards (AKA akoman)
+# Maintainer:
+# Original Version: 1.0
+#
+# Description: A modified form of the World of Darkness die roller to
+#              conform to ShadowRun rules-sets. Thanks to the ORPG team
+#              for the original die rollers.
+#              Thanks to tdb30_ for letting me think out loud with him.
+#         I take my hint from the HERO dieroller: It creates for wildly variant options
+#         Further, .vs and .open do not work together in any logical way. One method of
+#         chaining them results in a [Bad Dice Format] and the other results in a standard
+#         output from calling .open()
+
+#         vs is a classic 'comparison' method function, with one difference. It uses a
+#           c&p'ed .open(int) from die.py but makes sure that once the target has been exceeded
+#           then it stops rerolling. The overhead from additional boolean checking is probably
+#           greater than the gains from not over-rolling. The behaviour is in-line with
+#           Shadowrun Third Edition which recommends not rolling once you've exceeded the target
+#         open is an override of .open(int) in die.py. The reason is pretty simple. In die.py open
+#           refers to 'open-ended rolling' whereas in Shadowrun it refers to an 'Open Test' where
+#           the objective is to find the highest die total out of rolled dice. This is then generally
+#           used as the target in a 'Success Test' (for which .vs functions)
+
+# Modified by: Darloth
+# Mod Version: 1.1
+# Modified Desc:
+#       I've altered the vs call to make it report successes against every target number (tn)
+#       in a specified (default 3) range, with the original as median.
+#       This reduces rerolling if the TN was calculated incorrectly, and is also very useful
+#       when people are rolling against multiple TNs, which is the case with most area-effect spells.
+#       To aid in picking the specified TN out from the others, it will be in bold.
+#       vswide is a version which can be used with no arguments, or can be used to get a very wide range, by
+#       directly specifying the upper bound (Which is limited to 30)
+
+from std import std
+from orpg.dieroller.base import *
+
+__version__ = "1.1"
+
+class srex(std):
+    name = "srex"
+
+    def __init__(self,source=[]):
+        std.__init__(self,source)
+
+    def vs(self,actualtarget=4,tnrange=3):        #reports all tns around specified, max distance of range
+        return srVs(self,actualtarget,(actualtarget-tnrange),(actualtarget+tnrange))
+
+    def vswide(self,actualtarget=4,maxtarget=12):    #wide simply means it reports TNs from 2 to a specified max.
+        return srVs(self,actualtarget,2,maxtarget)
+
+    def open(self):         #unchanged from standard shadowrun open.
+        return srOpen(self)
+
+die_rollers.register(srex)
+
+class srVs(std):
+    def __init__(self,source=[],actualtarget=4,mintn=2,maxtn=12):
+        std.__init__(self, source)
+        if actualtarget > 30:
+            actualtarget = 30
+        if mintn > 30:
+            mintn = 30
+        if maxtn > 30:
+            maxtn = 30
+        # In Shadowrun, not target number may be below 2. Any
+        # thing lower is scaled up.
+        if actualtarget < 2:
+            self.target = 2
+        else:
+            self.target = actualtarget
+        #if the target number is higher than max (Mainly for wide rolls) then increase max to tn
+        if actualtarget > maxtn:
+            maxtn = actualtarget
+        #store minimum for later use as well, also in result printing section.
+        if mintn < 2:
+            self.mintn = 2
+        else:
+            self.mintn = mintn
+        self.maxtn = maxtn #store for later use in printing results. (Yeah, these comments are now disordered)
+
+        # Shadowrun was built to use the d6 but in the interests of experimentation I have
+        # made the dieroller generic enough to use any die type
+        self.openended(self[0].sides)
+
+    def openended(self,num):
+        if num <= 1:
+            self
+        done = 1
+
+        #reroll dice if they hit the highest number, until they are greater than the max TN (recursive)
+        for i in range(len(self.data)):
+            if (self.data[i].lastroll() >= num) and (self.data[i] < self.maxtn):
+                self.data[i].extraroll()
+                done = 0
+        if done:
+            return self
+        else:
+            return self.openended(num)
+
+    #count successes, by looping through each die, and checking it against the currently set TN
+    def __sum__(self):
+        s = 0
+        for r in self.data:
+            if r >= self.target:
+                s += 1
+        return s
+
+    #a modified sum, but this one takes a target argument, and is there because otherwise it is difficult to loop through
+    #tns counting successes against each one without changing target, which is rather dangerous as the original TN could
+    #easily be lost.
+    def xsum(self,curtarget):
+        s = 0
+        for r in self.data:
+            if r >= curtarget:
+                s += 1
+        return s
+
+
+    def __str__(self):
+        if len(self.data) > 0:
+            myStr = "[" + str(self.data[0])
+            for a in self.data[1:]:
+                myStr += ","
+                myStr += str(a)
+            myStr += "] Results: "
+            #cycle through from mintn to maxtn, summing successes for each separate TN
+            for targ in range(self.mintn,self.maxtn+1):
+                if targ == self.target:
+                    myStr += "<b>"
+                myStr += "(" + str(self.xsum(targ)) + "&nbsp;vs&nbsp;" + str(targ) + ") "
+                if targ == self.target:
+                    myStr += "</b>"
+        else:
+            myStr = "[] = (0)"
+
+        return myStr
+
+class srOpen(std):
+    def __init__(self,source=[]):
+        std.__init__(self,source)
+        self.openended(self[0].sides)
+
+    def openended(self,num):
+        if num <= 1:
+            self
+        done = 1
+        for i in range(len(self.data)):
+            if self.data[i].lastroll() == num:
+                self.data[i].extraroll()
+                done = 0
+        if done:
+            return self
+        else:
+            return self.openended(num)
+
+    def __sum__(self):
+        s = 0
+        for r in self.data:
+            if r > s:
+                s = r
+        return s
+
+    def __str__(self):
+        if len(self.data) > 0:
+            myStr = "[" + str(self.data[0])
+            for a in self.data[1:]:
+                myStr += ","
+                myStr += str(a)
+            self.takeHighest(1)
+            myStr += "] for a result of (" + str(self.__sum__().__int__()) + ")"
+        else:
+            myStr = "[] = (0)"
+
+        return myStr