correction on how blockage is calculated now that postInterruptionActions is...

correction on how blockage is calculated now that postInterruptionActions is invoked also when the object was interrupted by off-shift period

dream/simulation/CoreObject.py

@@ -84,7 +84,7 @@ class CoreObject(object):
         self.downTimeProcessingCurrentEntity=0          #holds the time that the machine was down while 
                                                         #processing the current entity
         self.downTimeInTryingToReleaseCurrentEntity=0   #holds the time that the object was down while trying 
-                                                        #to release the current entity                                                          
+                                                        #to release the current entity . This might be due to failure, off-shift, etc                                                         
         self.downTimeInCurrentEntity=0                  #holds the total time that the 
                                                         #object was down while holding current entity
         self.timeLastEntityLeft=0                       #holds the last time that an entity left the object
@@ -211,9 +211,7 @@ class CoreObject(object):
     def addBlockage(self): 
         self.totalTimeInCurrentEntity=self.env.now-self.timeLastEntityEntered
         self.totalTimeWaitingForOperator += self.operatorWaitTimeCurrentEntity
-        if self.timeLastEntityEnded<self.timeLastShiftStarted:      
-            self.offShiftTimeTryingToReleaseCurrentEntity=self.timeLastShiftStarted-self.timeLastShiftEnded
-        blockage=self.env.now-(self.timeLastEntityEnded+self.downTimeInTryingToReleaseCurrentEntity+self.offShiftTimeTryingToReleaseCurrentEntity)       
+        blockage=self.env.now-(self.timeLastEntityEnded+self.downTimeInTryingToReleaseCurrentEntity)       
         self.totalBlockageTime+=blockage     
     
     # =======================================================================

dream/simulation/Machine.py

@@ -882,7 +882,7 @@ class Machine(CoreObject):
                 self.totalOffShiftTime+=self.env.now-self.timeLastShiftEnded 
             # we add the value only if it hasn't already been added
             if((mightBeBlocked) and (activeObject.nameLastEntityEnded==activeObject.nameLastEntityEntered) and (not alreadyAdded)):   
-                activeObject.totalBlockageTime+=(self.env.now-activeObject.timeLastEntityEnded)-(self.env.now-activeObject.timeLastShiftEnded)-offShiftTimeInCurrentEntity 
+                activeObject.totalBlockageTime+=(self.env.now-activeObject.timeLastEntityEnded)-offShiftTimeInCurrentEntity 
                 
         #Machine was idle when it was not in any other state    
         activeObject.totalWaitingTime=MaxSimtime-activeObject.totalWorkingTime-activeObject.totalBlockageTime-activeObject.totalFailureTime-activeObject.totalLoadTime-activeObject.totalSetupTime-self.totalOffShiftTime