#!/bin/bash

BASE="/opt/X-Plane 10/Custom Scenery/zPhotoXP_+49+016_17_Brno_XP10_2013-01"
TER="terrain"
PIC="textures-new"

LXB=49.158950
LYB=16.669775
RXB=49.143272
RYB=16.720532

LX=`echo $LXB*1000000 | bc | cut -d "." -f 1`
LY=`echo $LYB*1000000 | bc | cut -d "." -f 1`
RX=`echo $RXB*1000000 | bc | cut -d "." -f 1`
RY=`echo $RYB*1000000 | bc | cut -d "." -f 1`

dX=$((14374/2))
dY=$((21973/2))

cat << EOF
PROPERTY sim/planet earth
PROPERTY sim/overlay 1
PROPERTY sim/require_object 1/0
PROPERTY sim/require_facade 1/0
PROPERTY sim/creation_agent gmdownload.sh
PROPERTY sim/west 16
PROPERTY sim/east 17
PROPERTY sim/north 50
PROPERTY sim/south 49


POLYGON_DEF polygons/pink.pol
EOF

CNT=0
for ter in "$BASE/$TER/"*.ter
do 
  Xbase=`grep "LOAD_CENTER" "$ter" | cut -d " " -f 2`
  Ybase=`grep "LOAD_CENTER" "$ter" | cut -d " " -f 3`
  X=`echo $Xbase*1000000 | bc | cut -d "." -f 1`
  Y=`echo $Ybase*1000000 | bc | cut -d "." -f 1`
#  echo "`basename \"$ter\"`: $Xbase; $Ybase; $X; $Y"
#  echo  "if [ $LX -gt $((X-delta)) ] && [ $LY -lt $((Y+delta)) ] && [ $RX -lt $((X+delta)) ] && [ $RY -gt $((Y-delta)) ]"
#  sleep 1
  if [ $LX -gt $((X-dX)) ] && [ $LY -lt $((Y+dY)) ] && [ $RX -lt $((X+dX)) ] && [ $RY -gt $((Y-dY)) ]
  then
    NAME=`basename "$ter"`
    #echo "$NAME: $Xbase; $Ybase; $X; $Y"
    #cp "`echo $BASE/$PIC/$NAME | sed 's:\.ter:\.jpg:g'`" /tmp/
    cat << EOF
    
BEGIN_POLYGON $CNT 65535 4
BEGIN_WINDING
POLYGON_POINT $(echo "scale=6; ($Y+$dY)/1000000" | bc -l)    $(echo "scale=6; ($X-$dX)/1000000" | bc -l)	1.00000000	0.00000000
POLYGON_POINT $(echo "scale=6; ($Y+$dY)/1000000" | bc -l)    $(echo "scale=6; ($X+$dX)/1000000" | bc -l)	1.00000000	1.00000000
POLYGON_POINT $(echo "scale=6; ($Y-$dY)/1000000" | bc -l)    $(echo "scale=6; ($X+$dX)/1000000" | bc -l)	0.00000000	1.00000000
POLYGON_POINT $(echo "scale=6; ($Y-$dY)/1000000" | bc -l)    $(echo "scale=6; ($X-$dX)/1000000" | bc -l)	0.00000000	0.00000000
END_WINDING
END_POLYGON
EOF
   #CNT=$((CNT+1))
  fi
done