!stardate command

Author: sentenza

README.md

@@ -36,3 +36,4 @@ Options:
 * greetings
 * diceroller
 * random number
+* Star Trek stardate

bot_core/irc_bot.py

@@ -11,6 +11,7 @@
 from plugins.welcome_machine import WelcomeMachine
 from plugins.dice_roller import DiceRoller
 from plugins.reddit import RedditManager
+from plugins.star_date import StarDate
 
 class IRCBot(irc.IRCClient):
 
@@ -184,6 +185,9 @@ def evaluate_command(self, user, channel, msg):
 
         elif msg == "!randtime":
             self.msg(channel, "Random Hour:Minute  %d:%.2d" % (random.randint(0,23), random.randint(0,59)) )
+        
+        elif msg == "!stardate":
+            self.msg(channel, StarDate.current_stardate())
 
         elif msg.startswith( ('!commands', '!help') ):
             if len(msg_splits) == 1:
@@ -270,7 +274,7 @@ def _help_command(self, command=None):
         """This method returns the help message"""
 
         help_msg = "Valid commands: !help <command>, !commands, !karma [user], !roll Nd(3|4|6|8|10|20), !rand arg, !randtime,"
-        help_msg += "!reddit [entries] [subject], !lastseen USER, !beskarma, !worstkarma, !bestwords, !worstwords"
+        help_msg += "!reddit [entries] [subject], !lastseen USER, !beskarma, !worstkarma, !bestwords, !worstwords, !stardate"
 
         if command is not None:
 
@@ -305,6 +309,9 @@ def _help_command(self, command=None):
             elif command == "worstkarma":
                 help_msg = "!worstkarma returns a list of the worst karmed users. Short form: !wk"
 
+            elif command == "stardate":
+                help_msg = "!stardate returns the current Star Trek stardate (info [it] http://it.wikipedia.org/wiki/Data_stellare - Test: http://goo.gl/DEc4n)"
+
             else:
                 help_msg = "%s is not a valid command!" % command
 

plugins/star_date.py

@@ -0,0 +1,41 @@
+from datetime import datetime
+from datetime import date
+import time
+import calendar
+
+# Test with http://www.hillschmidt.de/gbr/sternenzeit.htm
+
+# Constants
+
+K_NORMAL = 3.170979 * (10**-5)
+# LEAP YEARS
+K_LEAP = 3.162315 * (10**-5)
+# it could be also 2161 (birth of the United Planet Federation) or 2323
+FOUNDATION_YEAR = 2323
+MEAN_DAYS_IN_YEAR = 365.2425
+
+class StarDate(object):
+    ''' Star Trek star date generator '''
+
+    @staticmethod
+    def current_stardate():
+        '''Returns the current stardate (float) in the classic Star Trek format'''
+        # UTC datetime.now()
+        now = datetime.fromtimestamp(time.mktime(time.localtime()))
+        earth_date = date(now.year,1,1)
+        # delta from the first day of the year
+        delta = now.date() - earth_date
+        # Find if this year is leap
+        k = K_NORMAL if not calendar.isleap(now.year) else K_LEAP
+        # Computing star date
+        first = (now.year - FOUNDATION_YEAR) + (delta.days / MEAN_DAYS_IN_YEAR)
+        second = now.hour * 3600 + now.minute * 60 + now.second
+        stardate = first * 1000 + second * k
+        # Return a stardate with only two decimal digits
+        return "Captain's log, stardate %.2f." % stardate
+
+if __name__ == "__main__":
+    print StarDate.current_stardate()
+        
+
+