+
+
+
+class Task_INSTALL(Task):
+
+ def _get_uninstallables(self):
+ return [t for t in self.thing.game.things
+ if t != self.thing
+ and hasattr(t, 'installable') and t.installable
+ and (not t.portable)
+ and t.position == self.thing.position]
+
+ def check(self):
+ if self.thing.carrying:
+ if not hasattr(self.thing.carrying, 'installable')\
+ or not self.thing.carrying.installable:
+ raise PlayError('carried thing not installable')
+ elif len(self._get_uninstallables()) == 0:
+ raise PlayError('nothing to uninstall here')
+
+ def do(self):
+ if self.thing.carrying:
+ self.thing.carrying.install()
+ self.thing.carrying = None
+ else:
+ self._get_uninstallables()[0].uninstall()