fixed door-not-opening bug

direct/src/level/DistributedLevel.py

@@ -23,7 +23,6 @@ class DistributedLevel(DistributedObject.DistributedObject,
     notify = DirectNotifyGlobal.directNotify.newCategory('DistributedLevel')
 
     WantVisibility = config.GetBool('level-visibility', 1)
-    HideZones = config.GetBool('level-hidezones', 1)
     # set this to true to get all distrib objs when showing hidden zones
     ColorZonesAllDOs = 0
 
@@ -435,7 +434,7 @@ class DistributedLevel(DistributedObject.DistributedObject,
         self.curZoneNum = None
 
         self.visChangedThisFrame = 0
-        self.sentFirstSetZone = 0
+        self.fForceSetZoneThisFrame = 0
 
         # listen for camera-ray/floor collision events
         def handleCameraRayFloorCollision(collEntry, self=self):
@@ -457,6 +456,8 @@ class DistributedLevel(DistributedObject.DistributedObject,
         if not DistributedLevel.WantVisibility:
             zoneNums = list(self.zoneNums)
             zoneNums.remove(LevelConstants.UberZoneEntId)
+            # make sure a setZone goes out on the first frame
+            self.forceSetZoneThisFrame()
             self.setVisibility(zoneNums)
 
         # send out any zone changes at the end of the frame, just before
@@ -579,10 +580,8 @@ class DistributedLevel(DistributedObject.DistributedObject,
         # this flag will prevent a network msg from being sent if
         # the list of visible zones has not changed
         vizZonesChanged = 1
-        if DistributedLevel.HideZones:
         # figure out which zones are new and which are going invisible
-            # use dicts because it's faster to use dict.has_key(x)
+        # use dicts because 'x in dict' is faster than 'x in list'
-            # than 'x in list'
         addedZoneNums = []
         removedZoneNums = []
         allVZ = dict(visibleZoneNums)
@@ -615,9 +614,9 @@ class DistributedLevel(DistributedObject.DistributedObject,
         # it's important for us to send a setZone request on the first
         # frame, whether or not the visibility is different from what
         # we already have
-        if vizZonesChanged or not self.sentFirstSetZone:
+        if vizZonesChanged or self.fForceSetZoneThisFrame:
             self.setVisibility(visibleZoneNums.keys())
-            self.sentFirstSetZone = 1
+            self.fForceSetZoneThisFrame = 0
 
         self.curZoneNum = zoneNum
         self.curVisibleZoneNums = visibleZoneNums
@@ -660,10 +659,14 @@ class DistributedLevel(DistributedObject.DistributedObject,
         Level.Level.handleVisChange(self)
         self.visChangedThisFrame = 1
 
+    def forceSetZoneThisFrame(self):
+        # call this to ensure that a setZone call will be generated this frame
+        self.fForceSetZoneThisFrame = 1
+
     def visChangeTask(self, task):
         # this runs just before igloop; if viz lists have changed
         # this frame, updates the visibility and sends out a setZoneMsg
-        if self.visChangedThisFrame:
+        if self.visChangedThisFrame or self.fForceSetZoneThisFrame:
             self.updateVisibility()
             self.visChangedThisFrame = 0
         return Task.cont

direct/src/level/VisibilityBlocker.py

@@ -22,21 +22,31 @@ class VisibilityBlocker:
         will be called when it's safe to show the new zones."""
         if self.__nextSetZoneDoneEvent is None:
             self.__nextSetZoneDoneEvent = self.level.cr.getNextSetZoneDoneEvent()
-            self.accept(self.__nextSetZoneDoneEvent, self.okToUnblockVis)
+            self.acceptOnce(self.__nextSetZoneDoneEvent, self.okToUnblockVis)
+            # make sure that a setZone is sent this frame, even if the
+            # visibility list doesn't change
+            self.level.forceSetZoneThisFrame()
 
     def cancelUnblockVis(self):
-        """derived class should call this if they have called requestUnblockVis,
+        """
-        but no longer need that service.  For example the user could have canceled
+        derived class should call this if they have called
-        the request that started the visibility change."""
+        requestUnblockVis, but no longer need that service.  For example
+        the user could have canceled the request that started the
+        visibility change.
+        """
         if self.__nextSetZoneDoneEvent is not None:
             self.ignore(self.__nextSetZoneDoneEvent)
             self.__nextSetZoneDoneEvent = None
 
     def isWaitingForUnblockVis(self):
-        """returns a boolean for whether there is a requestUnblockVis() pending."""
+        """
+        returns a boolean for whether there is a requestUnblockVis() pending.
+        """
         return self.__nextSetZoneDoneEvent is not None
 
     def okToUnblockVis(self):
-        """derived class should override this func and do the vis unblock
+        """
-        (i.e. open the door, etc.)"""
+        derived class should override this func and do the vis unblock
+        (i.e. open the door, etc.)
+        """
         self.cancelUnblockVis()