TT-113 Created a directory tools under co-simulation and added a bash…

… script geneate_background_traffic.sh for generating background traffic for any Sumo network

co-simulation/tools/geneate_background_traffic.sh

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+#!/bin/bash
+#This script will generate random traffic to be used in Sumo-carla co simulation for a any Sumo Network File given the simulation duration, number of vehicles and a random number seed
+# This script requires  installation of Sumo tools randomTrips.py and Python
+echo "Sumo Network Files in this directoryi:"
+ls *.net.xml
+# Prompt for user inputs
+echo 
+echo "Enter the Sumo Network File Name:"
+read net_file
+
+echo "Output File Name:"
+read out_file
+
+echo "Enter Duration of the Simulation:"
+read sim_duration
+
+echo "How many vehicles you want to instantiate?:"
+read veh_number
+
+echo "Enter Random Number Seed (Different Seed will genrate different traffic):"
+read seed
+
+# Calculate the rate of vehicle generation
+rate=$(echo "$sim_duration / $veh_number" | bc -l)
+
+
+# Run the Python script with the provided inputs
+python3 /usr/share/sumo/tools/randomTrips.py -n $net_file -r $out_file  --fringe-factor 5 -e $sim_duration -p $rate --vehicle-class passenger --validate --random --seed $seed
+
+
+#Changing vehicle Types matching pasenger car of CARLA 
+# List of Passenger vehicle classes in CARLA 
+
+vehicle_classes=(
+  "vehicle.audi.a2"
+  "vehicle.audi.tt"
+  "vehicle.jeep.wrangler_rubicon"
+  "vehicle.chevrolet.impala"
+  "vehicle.mini.cooper_s"
+  "vehicle.mercedes.coupe"
+  "vehicle.bmw.grandtourer"
+  "vehicle.citroen.c3"
+  "vehicle.ford.mustang"
+  "vehicle.lincoln.mkz_2017"
+  "vehicle.seat.leon"
+  "vehicle.nissan.patrol"
+  "vehicle.nissan.micra"
+)
+
+temp_file="temp.xml"
+
+# Read the generated route file line by line
+while IFS= read -r line; do
+  if [[ "$line" == *'type="passenger"'* ]]; then
+    # Select a random vehicle class
+    random_vehicle=${vehicle_classes[$RANDOM % ${#vehicle_classes[@]}]}
+    # Replace type="passenger" with the random vehicle class
+    line=$(echo "$line" | sed "s/type=\"passenger\"/type=\"$random_vehicle\"/")
+  fi
+  # Write the updated line to a temporary file
+  echo "$line" >> "$temp_file"
+done < "$out_file"
+
+# Replace the original file with the updated file
+mv "$temp_file" "$out_file"
+rm trips.trips.xml
+echo "Route file $out_file generated"
+
+