Adds os specific timestamp parsing. Re: #58

Identifies a flag for an operating system with Windows as 0 and Mac
as 1. Also adds a new algorithm for getting times from Mac replays.

Author: GraylinKim

sc2reader/objects.py

@@ -8,7 +8,7 @@
 from sc2reader.utils import PersonDict, AttributeDict
 
 Location = namedtuple('Location',('x','y'))
-Details = namedtuple('Details',['players','map','unknown1','unknown2','unknown3','file_time','utc_adjustment','unknown4','unknown5','unknown6','unknown7','unknown8','unknown9','unknown10'])
+Details = namedtuple('Details',['players','map','unknown1','unknown2','os','file_time','utc_adjustment','unknown4','unknown5','unknown6','unknown7','unknown8','unknown9','unknown10'])
 
 MapData = namedtuple('MapData',['unknown','gateway','map_hash'])
 PlayerData = namedtuple('PlayerData',['name','bnet','race','color','unknown1','unknown2','handicap','unknown3','result'])

sc2reader/resources.py

@@ -53,6 +53,10 @@ class Replay(Resource):
     #: The game speed: Slower, Slow, Normal, Fast, Faster
     speed = str()
 
+    #: The operating system the replay was recorded on.
+    #: Useful for interpretting certain kind of raw data.
+    os = str()
+
     #: Deprecated, use :member:`game_type` or :member:`real_type` instead
     type = str()
 
@@ -180,6 +184,7 @@ def __init__(self, replay_file, filename=None, load_level=4, **options):
         self.other_people = set()
         self.speed = ""
         self.type = ""
+        self.os = str()
         self.game_type = ""
         self.real_type = ""
         self.category = ""
@@ -269,11 +274,21 @@ def load_details(self):
 
             self.map_name = details.map
 
-            self.windows_timestamp = details.file_time-details.utc_adjustment
-            self.unix_timestamp = utils.windows_to_unix(self.windows_timestamp)
-            self.time_zone = details.utc_adjustment/(10**7*60*60)
+            if details.os == 0:
+                self.os = "Windows"
+                self.windows_timestamp = details.file_time-details.utc_adjustment
+                self.unix_timestamp = utils.windows_to_unix(self.windows_timestamp)
+                self.time_zone = details.utc_adjustment/(10**7*60*60)
+                self.end_time = datetime.utcfromtimestamp(self.unix_timestamp)
+            elif details.os == 1:
+                self.os = "Mac"
+                self.windows_timestamp = details.utc_adjustment
+                self.unix_timestamp = utils.windows_to_unix(self.windows_timestamp)
+                self.time_zone = (details.utc_adjustment-details.file_time)/(10**7*60*60)
+                self.end_time = datetime.utcfromtimestamp(self.unix_timestamp)
+            else:
+                raise ValueError("Unknown operating system {} detected.".format(details.os))
 
-            self.end_time = datetime.utcfromtimestamp(self.unix_timestamp)
             self.game_length = self.length
             self.real_length = utils.Length(seconds=int(self.length.seconds/GAME_SPEED_FACTOR[self.speed]))
             self.start_time = datetime.utcfromtimestamp(self.unix_timestamp-self.real_length.seconds)