fgfs-control.sh

#!/bin/sh

calculate ()
{
	local value=$(echo "$*" | bc -q)
	echo $value
}

float_conditional ()
{
	local result=0
	result=$(echo "$*" | bc -q)
	result=$(($result == 0))
	
	return $result
}

MIN_LAT=46.5
MAX_LAT=52
MIN_LON=52.5
MAX_LON=59.5
FACTOR=0.5

cd ~/tg2/MyScenery/work

echo "Enter piece width"
read WIDTH
echo "Enter piece height"
read HEIGHT

j=$(calculate "$MIN_LON + $WIDTH * $FACTOR")
i=$(calculate "$MIN_LAT + $HEIGHT * $FACTOR")

while float_conditional "$j < $MAX_LON"
do
	while float_conditional "$i < $MAX_LAT"
	do
		fgfs-construct --work-dir=. \
			--output-dir=Scenery/Terrain \
			--lon=-$i --lat=$j \
			--xdist=$WIDTH --ydist=$HEIGHT \
			AirportArea AirportObj DEM-USGS-3 LandMass Cities Crops Forest Freeways Lakes Railroads Rivers Roads Towns
		
		i=$(calculate "$i + $HEIGHT")
	done
	
	i=$(calculate "$MIN_LAT + $HEIGHT * $FACTOR")
	j=$(calculate "$j + $WIDTH")
done