Mercurial > parpg-core
annotate src/parpg/components/lockable.py @ 89:b5619032c521
Added item_type attribute to the containable component.
| author | KarstenBock@gmx.net |
|---|---|
| date | Wed, 21 Sep 2011 15:05:12 +0200 |
| parents | 96af64cf3b81 |
| children | 0f659c7675f6 |
| rev | line source |
|---|---|
|
34
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
1 # This program is free software: you can redistribute it and/or modify |
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5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
2 # it under the terms of the GNU General Public License as published by |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
3 # the Free Software Foundation, either version 3 of the License, or |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
4 # (at your option) any later version. |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
5 # |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
6 # This program is distributed in the hope that it will be useful, |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
7 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
8 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
9 # GNU General Public License for more details. |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
10 # |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
11 # You should have received a copy of the GNU General Public License |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
12 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
13 |
|
66
96af64cf3b81
Renamed grease to bGrease (Basic Grease) to get rid of conflicts with an already installed grease.
KarstenBock@gmx.net
parents:
49
diff
changeset
|
14 from bGrease.component import Component |
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34
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
15 |
|
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
16 class Lockable(Component): |
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5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
17 """Component that stores the data of a lock""" |
| 49 | 18 |
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34
5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
19 def __init__(self): |
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5ac50245e42c
Refactored components and began defining basic Entities and Systems.
M. George Hansen <technopolitica@gmail.com>
parents:
diff
changeset
|
20 """Constructor""" |
| 49 | 21 Component.__init__(self, closed=bool, locked=bool) |
| 22 | |
| 23 class LockedError(Exception): | |
| 24 | |
| 25 def __str__(self): | |
| 26 return "Is locked" | |
| 27 | |
| 28 class OpenError(Exception): | |
| 29 | |
| 30 def __str__(self): | |
| 31 return "Is open" | |
| 32 | |
| 33 def lock(lock): | |
| 34 if not lock.closed: | |
| 35 raise OpenError | |
| 36 lock.locked = True | |
| 37 | |
| 38 def unlock(lock): | |
| 39 lock.locked = False | |
| 40 | |
| 41 def open(lock): | |
| 42 if lock.locked: | |
| 43 raise LockedError | |
| 44 lock.closed = False | |
| 45 | |
| 46 def close(lock): | |
| 47 lock.closed = True |