forked from mtcontrib/leaftest
149 lines
4.0 KiB
Bash
Executable File
149 lines
4.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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MAPDIR=$1
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SPAWNPOS=$2
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DIMENSIONS=$3
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DIMENSIONS=${DIMENSIONS=6144}
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MAPPERDIR=${MAPPERDIR=.}
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mapperpath=${mapperpath=$MAPPERDIR/minetestmapper}
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if [ ! -f $mapperpath ]; then
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echo "Error, "$mapperpath" doesn't exist."
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echo "Please specify the path to the minetestmapper executable via the MAPPERDIR variable"
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exit 1
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fi
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if [ ! -d "$MAPDIR" ]; then
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echo "Error, the directory \"$MAPDIR\" doesn't exist."
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echo "Please specify the path to the minetest world"
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exit 1
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fi
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if [ -f downscaling/perc ]; then
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echo "Using SSIM based downscaling"
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downscale() {
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downscaling/perc 2 < $1 > ${1}_small
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mv -f ${1}_small $1
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}
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else
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echo "Using downscaling provided by imagemagick"
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downscale() {
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convert $1 -resize 50% $1
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}
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fi
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JOBNUM=${JOBNUM=1}
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case "$JOBNUM" in
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''|*[!0-9]*) echo "Bad number of jobs '$JOBNUM'. Please specify a positive integer." ; exit 1 ;;
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*) ;;
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esac
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# echo "Number of jobs: $JOBNUM"
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prefix_func="\
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prefix() { \
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while read line ; do \
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echo \"\${1}\${line}\"; \
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done \
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}"
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# retains || usage when doing | prefix "sth"
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# use it when needed
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prefix_pipefail="\
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set -o pipefail ; \
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$prefix_func"
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# prefix should be usable within this script as well
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eval $prefix_func
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#sh -c "$prefix_func ; echo -e 'a\nb\nc\n' | prefix 'PREF '"
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#bash -c "$prefix_pipefail ; (echo -e 'a\nb\nc\n' ; false) | prefix 'PREF '" || echo "ERR"
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#exit 1
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if [ -z "$scriptdir" ]; then
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scriptdir=`readlink -f $0`
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scriptdir=`dirname $scriptdir`
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fi
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tiledir=${tiledir=$scriptdir/www/tiles}
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spawnx=${SPAWNPOS%%,*}
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spawnx=${spawnx=0}
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spawny=${SPAWNPOS##*,}
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spawny=${spawny=0}
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#echo "spawn position: $spawnx $spawny"
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tilesize=${tilesize=256}
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zoomlevelnum=${zoomlevelnum=3}
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tilenum=$(($DIMENSIONS/$tilesize))
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mkdir -p ${tiledir}/20
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rm -f ${tiledir}/20/*
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jobparam="-P$JOBNUM"
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echo "Creating tile images with minetestmapper…"
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for x in $(seq 0 $tilenum)
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do
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for y in $(seq 0 $tilenum)
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do
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posx=$(($spawnx+$tilesize*($x-$tilenum/2)))
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posy=$(($spawny+$tilesize*($tilenum/2-$y)))
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# Execute sh -c "something"
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printf "%s\x00" "-c"
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printf "$prefix_pipefail ; $mapperpath ${MAPPERPARAMS} -i ${MAPDIR} --geometry ${posx},${posy}+${tilesize}+${tilesize} -o ${tiledir}/20/map_${x}_${y}.png \
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2> >(>&2 prefix '[TILEGEN 20/map_${x}_${y}.png ERR]: ') | prefix '[TILEGEN 20/map_${x}_${y}.png]: ' \
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|| (>&2 echo 'minetesmapper for tile [${x},${y}] ended with non zero exit code'; exit 255)\x00"
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done
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done | xargs -n2 $jobparam -0 bash # bash required because of "set -o pipefail" usage
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xargs_exit=$?
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if [ $xargs_exit -ne 0 ]; then
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# xargs unfortunately exits immediately, without even waiting for sub-processes
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sleep 1
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>&2 echo "Error: xargs ended with non-zero exit code $xargs_exit."
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exit 1
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fi
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# images are joined together and downscaled
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echo "Generating lower resolution tile images…"
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mult=1
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for s in $(seq 1 $zoomlevelnum)
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do
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echo "$s/$zoomlevelnum …"
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mult=$(($mult*2))
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tnum=$(($tilenum/$mult-1))
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zoomlevel=$((20-$s))
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zoomlevelbefore=$((20-$s+1))
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zlv=$zoomlevel # shorter name
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dir=$tiledir/$zoomlevel
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dirb=$tiledir/$zoomlevelbefore
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mkdir -p $dir
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rm -f ${dir}/*
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for x in $(seq 0 $tnum)
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do
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for y in $(seq 0 $tnum)
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do
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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 \
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2> >(>&2 prefix "[MONTAGE $zlv/map_${x}_${y}.png ERR]: ") | prefix "[MONTAGE $zlv/map_${x}_${y}.png]: "
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if [ ${PIPESTATUS[0]} -ne 0 ]; then
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echo "montage exited with non zero exit code, aborting."
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exit 1
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fi
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downscale $dir/map_${x}_${y}.png \
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2> >(>&2 prefix "[SHRINK $zlv/map_${x}_${y}.png ERR]: ") | prefix "[SHRINK $zlv/map_${x}_${y}.png]: "
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if [ ${PIPESTATUS[0]} -ne 0 ]; then
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echo "shrinking exited with non zero exit code, aborting."
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exit 1
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fi
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done
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done
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done
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zoommin=$((20-$zoomlevelnum))
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#write the resulting config into a json file
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echo "{\"mapsize\":$DIMENSIONS, \"spawn\":{\"x\":$spawnx,\"y\":$spawny}, \"zoommin\":$zoommin, \"tilesize\":$tilesize}" > ${conffile=$tiledir/conf.json}
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