[Pymoul-svn] SF.net SVN: pymoul: [243] pymoul/trunk/src/moul/time

[<ti...@us...>]

Revision: 243
          http://pymoul.svn.sourceforge.net/pymoul/?rev=243&view=rev
Author:   tiran
Date:     2007-03-08 04:57:43 -0800 (Thu, 08 Mar 2007)

Log Message:
-----------
Added unit tests for gira
More implementation details

Modified Paths:
--------------
    pymoul/trunk/src/moul/time/edergira.py

Added Paths:
-----------
    pymoul/trunk/src/moul/time/tests/test_edergira.py

Modified: pymoul/trunk/src/moul/time/edergira.py
===================================================================
--- pymoul/trunk/src/moul/time/edergira.py	2007-03-08 02:42:59 UTC (rev 242)
+++ pymoul/trunk/src/moul/time/edergira.py	2007-03-08 12:57:43 UTC (rev 243)
@@ -18,12 +18,19 @@
 """pyMoul Ede Gira day cycle
 
 Based on BrettM's information
+
+>>> from pytz import timezone
+>>> MST = timezone('MST')
+>>> sunset = datetime(2007, 3, 8, 4, 30, 0, tzinfo=MST)
+>>> egdc = EderGiraDayCalculator()
+>>> eg = egdc.getDayInfo(sunset)
+>>> eg.state, eg.light, eg.hour
+(<dusk>, 0.75, 7.25)
 """
 __author__ = "Christian Heimes"
 __version__ = "$Id"
 __revision__ = "$Revision"
 
-
 from datetime import datetime
 from datetime import timedelta
 
@@ -31,11 +38,136 @@
 from moul.time.utils import td2sec
 from moul.time.utils import utcnow
 
-delta = timedelta(days=0, hours=10, minutes=0) # 10h
-base_dt = datetime(2007, 3, 8, 9, 15, 0) # noon
 
+class Invariant(object):
+    __slots__ = ('_var',)
+    def __new__(cls, var):
+        self = object.__new__(cls)
+        if not isinstance(var, basestring):
+            raise TypeError(type(var))
+        self._var = var
+        return self
+
+    def __repr__(self):
+        return '<%s>' % self._var
+
+    def __str__(self):
+        return str(self._var)
+
+    def __unicode__(self):
+        return unicode(self._var)
+
+NIGHT = Invariant('night')
+DAWN = Invariant('dawn')
+DAY = Invariant('day')
+DUSK = Invariant('dusk')
+
+class EderGiraDayCalculator(object):
+    """Eder Gira day cycle calculator
+    """
+    def __init__(self):
+        self._basedt = datetime(2007, 3, 8, 4, 15, 0, tzinfo=UTC) # midnight
+        self._hours = 10
+        self._delta = timedelta(days=0, hours=self._hours)
+        self._deltasec = self._hours * 3600
+
+    def getLastMidnight(self, dt=None):
+        """Get last midnight in relation to dt (or now)
+        """
+        if dt is None:
+            dt = utcnow()
+        cycles = td2sec(dt - self._basedt) / self._deltasec
+        return self._basedt + (int(cycles) * self._delta)
+
+    def getDayInfo(self, dt=None):
+        """Get day info object for dt (or now)
+        """
+        if dt is None:
+            dt = utcnow()
+        sec = td2sec(dt - self._basedt)
+        return EderGiraDay(round(sec / 3600.0, 2) % self._hours)
+
 class EderGiraDay(object):
-    """Eder Gira day cycle class
+    """An Eder Gira day representation
+
+    >>> eg = EderGiraDay(1.25)
+    >>> eg.state, eg.light, eg.hour
+    (<night>, 0.0, 1.25)
+    >>> int(eg)
+    1
+    >>> float(eg)
+    1.25
+
+    >>> eg = EderGiraDay(2.5)
+    >>> eg.state, eg.light, eg.hour
+    (<dawn>, 0.5, 2.5)
+
+    >>> eg = EderGiraDay(5.0)
+    >>> eg.state, eg.light, eg.hour
+    (<day>, 1.0, 5.0)
+
+    >>> eg = EderGiraDay(7.875)
+    >>> eg.state, eg.light, eg.hour
+    (<dusk>, 0.13, 7.875)
+
+    >>> eg = EderGiraDay(9.5)
+    >>> eg.state, eg.light, eg.hour
+    (<night>, 0.0, 9.5)
+
+    >>> eg = EderGiraDay(10.0)
+    Traceback (most recent call last):
+    ...
+    ValueError: 10.0
     """
-    def __init__(self):
-        pass
+    def __init__(self, eghour):
+        if not 0 <= eghour < 10:
+            raise ValueError(eghour)
+        self._eghour = eghour
+
+    @property
+    def state(self):
+        """State: night, dawn, day, dusk
+        """
+        eg = self._eghour
+        if eg < 2.0:
+            return NIGHT
+        elif 2.0 <= eg < 3.0:
+            return DAWN
+        elif 3.0 <= eg < 7.0:
+            return DAY
+        elif 7.0 <= eg < 8.0:
+            return DUSK
+        elif 8.0 <= eg < 10:
+            return NIGHT
+        else:
+            raise ValueError(eg)
+
+    @property
+    def light(self):
+        """Light level between 0.0 and 1.0
+        """
+        state = self.state
+        if state is NIGHT:
+            return 0.0
+        elif state is DAWN:
+            level = self._eghour % 1
+            return round(level, 2)
+        elif state is DAY:
+            return 1.0
+        elif state is DUSK:
+            level = self._eghour % 1
+            return round(1-level, 2)
+        else:
+            raise ValueError(state)
+
+    @property
+    def hour(self):
+        """Hour between 0.00 and 9.99
+        """
+        return self._eghour
+
+    def __int__(self):
+        return int(self._eghour)
+
+    def __float__(self):
+        return float(self._eghour)

Added: pymoul/trunk/src/moul/time/tests/test_edergira.py
===================================================================
--- pymoul/trunk/src/moul/time/tests/test_edergira.py	                        (rev 0)
+++ pymoul/trunk/src/moul/time/tests/test_edergira.py	2007-03-08 12:57:43 UTC (rev 243)
@@ -0,0 +1,37 @@
+# pyMoul - Python interface to Myst Online URU Live
+# Copyright (C) 2007 Christian Heimes <christian (at) cheimes (dot) de>
+
+# 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., 59
+# Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+"""moul.time.edergira unit tests
+"""
+__author__ = "Christian Heimes"
+__version__ = "$Id: test_dni.py 122 2007-02-02 17:34:06Z tiran $"
+__revision__ = "$Revision: 122 $"
+
+import os
+import unittest
+from doctest import DocTestSuite
+
+import moul.time.edergira
+
+
+def test_suite():
+    return unittest.TestSuite((
+        DocTestSuite('moul.time.edergira'),
+        ))
+
+if __name__ == '__main__':
+    unittest.main(defaultTest="test_suite")


Property changes on: pymoul/trunk/src/moul/time/tests/test_edergira.py
___________________________________________________________________
Name: svn:keywords
   + 'Id Revision'
Name: svn:eol-style
   + native


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