normalize the last assignment time for the machine based to the last time that...

normalize the last assignment time for the machine based to the last time that there was an assignment

dream/simulation/SkilledOperatorRouter.py

@@ -144,12 +144,24 @@ class SkilledRouter(Router):
                 # # stations of the line and their corresponding WIP
                 # TODO: the WIP of the stations must be normalised to the max WIP possible on that station
                 #===================================================================
+                
+                # identify the last time that there was an assignment
+                maxLastAssignment=0
+                for record in self.solutionList:
+                    if record:
+                        maxLastAssignment=record["time"]
+
                 self.availableStationsDict={}
                 for station in self.availableStations:
                     lastAssignmentTime=0
                     for record in self.solutionList:
                         if station.id in record["allocation"].values():
                             lastAssignmentTime=record["time"]
+                    
+                    # normalise the lastAssignmentTime based on the maxLastAssignment. 
+                    if maxLastAssignment:
+                        lastAssignmentTime=1.0-float(lastAssignmentTime/float(maxLastAssignment))
+                    
                     # it there is definition of 'technology' to group machines add this
                     if station.technology:
                         self.availableStationsDict[str(station.id)]={'stationID':station.technology,'machineID':station.id,