ardupilot/libraries/SITL/examples/Airsim/multi_vehicle.sh

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#!/bin/bash
# Example script for multi-vehicle simulation with AirSim and usage with ROS
# see https://ardupilot.org/dev/docs/sitl-with-airsim.html#multi-vehicle-simulation for details
# Usage - From ardupilot root directory, run - libraries/SITL/examples/Airsim/multi_vehicle.sh $GCS_IP
# $GCS_IP is the IP address of the system running the GCS, by default is 127.0.0.1
# Kill all SITL binaries when exiting
trap "killall -9 arducopter" SIGINT SIGTERM EXIT
# assume we start the script from the root directory
ROOTDIR=$PWD
COPTER=$ROOTDIR/build/sitl/bin/arducopter
# Set GCS_IP address
if [ -z $1 ]; then
GCS_IP="127.0.0.1"
else
GCS_IP=$1
fi
BASE_DEFAULTS="$ROOTDIR/Tools/autotest/default_params/copter.parm,$ROOTDIR/Tools/autotest/default_params/airsim-quadX.parm"
[ -x "$COPTER" ] || {
./waf configure --board sitl
./waf copter
}
# start up main copter in the current directory
$COPTER --model airsim-copter --uartA udpclient:$GCS_IP:14550 --uartB tcp:0 --defaults $BASE_DEFAULTS &
# Set number of "extra" copters to be simulated, change this for increasing the count
NCOPTERS="1"
# now start another copter, using
# a separate directory to keep the eeprom.bin and logs separate
for i in $(seq $NCOPTERS); do
echo "Starting copter $i"
mkdir -p copter$i
SYSID=$(expr $i + 1)
UDP_PORT=$((14550 + $i * 10))
# create seperate parameter file for each drone for SYSID
cat <<EOF > copter$i/identity.parm
SYSID_THISMAV $SYSID
EOF
pushd copter$i
$COPTER --model airsim-copter --uartA udpclient:$GCS_IP:$UDP_PORT --uartB tcp:$i \
--instance $i --defaults $BASE_DEFAULTS,identity.parm &
popd
done
wait