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try:
from sugar.datastore import datastore
except:
print "**Warning**: Not running in sugar env"
print "\t* Sugar datastore required for custom map functionality"
print "\t* Trying to load custom map or export will cause crash"
import os
import re
class BadInputException(Exception):pass
FILE_MIME = "application/x-fortune-map"
FM_VERSION = '1' #Must be string for dict
def export_textfile(activity, filename, dungeon_id, filetext=''):
"""
Exports text to journal (in fortune map format)
Requires activity instance, file name, dungeon id, and text
@Returns: a DSObject representing the file in the datastore.
"""
ds_objects, num_objects = datastore.find({'title':filename,'FortuneMaker_VERSION':FM_VERSION})
if num_objects == 0:
# Create a datastore object
file_dsobject = datastore.create()
else:
file_dsobject = ds_objects[0]
# Store unique id for easy search of journal
file_dsobject.metadata['FM_UID'] = dungeon_id
# Write any metadata (here we specifically set the title of the file and
# specify that this is a plain text file).
file_dsobject.metadata['title'] = filename
file_dsobject.metadata['mime_type'] = FILE_MIME
file_dsobject.metadata['FortuneMaker_VERSION'] = FM_VERSION
#Write the actual file to the data directory of this activity's root.
file_path = os.path.join(activity.get_activity_root(), 'instance', filename)
f = open(file_path, 'w')
try:
f.write(filetext)
finally:
f.close()
#Set the file_path in the datastore.
file_dsobject.set_file_path(file_path)
datastore.write(file_dsobject)
file_dsobject.destroy()
def list_fh_files():
ds_objects, num_objects = datastore.find({'FortuneMaker_VERSION':FM_VERSION})
file_list = []
for i in xrange(0, num_objects, 1):
if ds_objects[i].metadata.has_key('FM_UID'):
file_list.append( ds_objects[i] )
else:
#TODO: Attempt to read uid from file?
pass
return file_list
def load_dungeon_by_id(id):
ds_objects, num_objects = datastore.find({'FortuneMaker_VERSION':FM_VERSION,'FM_UID':id})
if num_objects == 0:
return False
return load_dungeon(ds_objects[0])
def load_dungeon(file_data):
"""
Gets dungeon data dictionary from journal file object
Internally opens file from xo journal object and calls do_load
Throws BadInputException if failed to parse parts of the file
"""
dgnFile=open(file_data.get_file_path(),'r')
dungeon_data = do_load( dgnFile )
dngFile.close()
return dungeon_data
def do_load( dgnFile ):
"""
Gets dungeon data dictionary from file stream
Throws BadInputException if failed to parse parts of the file
"""
grab = 0
room_str = []
for line in dgnFile:
if grab == 0:
name = line.strip()
grab = 1
elif grab == 1:
d_id = line.strip()
grab = 2
elif grab == 2:
match = re.match('(\d+)x(\d+)',line)
if match:
x = int(match.group(1))
y = int(match.group(2))
grab = 3
else:
raise BadInputException()
elif grab == 3:
theme = int(line)
grab = 4
elif grab == 4:
next = line.strip()
grab = 5
elif grab == 5:
room_str.append(line.strip())
if grab == 5:
dungeon_dict = {
'name': name, 'theme': theme, 'next': next,
'x': x, 'y': y, 'roomstr': room_str, 'd_id': d_id
}
return dungeon_dict
else:
raise BadInputException()
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