leaftest/mapper.sh
2016-01-17 17:40:12 +01:00

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#!/bin/bash
MAPDIR=$1
SPAWNPOS=$2
DIMENSIONS=$3
if [ -z $MAPPERDIR ]; then
MAPPERDIR=.
fi
mapperpath=$MAPPERDIR/minetestmapper
if [ ! -f $mapperpath ]; then
echo "Error, "$mapperpath" doesn't exist."
echo "Please specify the path to the minetestmapper executable via the MAPPERDIR variable"
exit 1
fi
scriptdir=`readlink -f $0`
scriptdir=`dirname $scriptdir`
tiledir=$scriptdir/www/tiles
spawnx=${SPAWNPOS%%,*}
spawny=${SPAWNPOS##*,}
#echo "spawn position: $spawnx $spawny"
tilesize=256
zoomlevelnum=3
tilenum=$(($DIMENSIONS/$tilesize))
mkdir -p ${tiledir}/20
rm -f ${tiledir}/20/*
#create tile images
for x in $(seq 0 $tilenum)
do
for y in $(seq 0 $tilenum)
do
posx=$(($spawnx+$tilesize*($x-$tilenum/2)))
posy=$(($spawny+$tilesize*($tilenum/2-$y)))
$mapperpath ${MAPPERPARAMS} -i ${MAPDIR} --geometry ${posx},${posy}+${tilesize}+${tilesize} -o ${tiledir}/20/map_${x}_${y}.png
done
done
#join the images and make them smaller
mult=1
for s in $(seq 1 $zoomlevelnum)
do
mult=$(($mult*2))
tnum=$(($tilenum/$mult-1))
zoomlevel=$((20-$s))
zoomlevelbefore=$((20-$s+1))
dir=$tiledir/$zoomlevel
dirb=$tiledir/$zoomlevelbefore
mkdir -p $dir
rm -f ${dir}/20/*
for x in $(seq 0 $tnum)
do
for y in $(seq 0 $tnum)
do
montage $dirb/map_$(($x*2))_$((y*2)).png $dirb/map_$(($x*2+1))_$((y*2)).png $dirb/map_$(($x*2))_$((y*2+1)).png $dirb/map_$(($x*2+1))_$((y*2+1)).png -geometry +0+0 $dir/map_${x}_${y}.png
convert $dir/map_${x}_${y}.png -resize 50% $dir/map_${x}_${y}.png
done
done
done
zoommin=$((20-$zoomlevelnum))
#write the resulting config into a json file
echo "{\"mapsize\":$DIMENSIONS, \"spawn\":{\"x\":$spawnx,\"y\":$spawny}, \"zoommin\":$zoommin}" > $scriptdir/www/conf.json