mcmapを使って1hに1回マイクラのマップ画像を撮る
今回、mcmap使って定期的にマップ画像を更新するスクリプト書きましたので、覚書き。
- フォーラム → mcmap (isometric renders, SSP/SMP, Minecraft 1.3.1 support) - Minecraft Forum
- Github → Zahl/mcmap · GitHub
とりあえずGithubから最新のものを持ってくる
$ mkdir -p /home/user/src/ $ git clone https://github.com/Zahl/mcmap.git /home/user/src/mcmap
On Linux/BSD it should be trivial to compile. All you need is g++, make, zlib and libpng.
http://www.minecraftforum.net/topic/37409-mcmap-isometric-renders-sspsmp-minecraft-131-support/
(If they're missing and you're on debian or Ubuntu, try "apt-get install zlib1g-dev build-essential g++ libc6-dev libpng-dev",
on CentOS you need to do "yum install libpng-devel zlib-devel gcc-c++")
Just cd into the directory containing the source code and type "make".
"make turbo" would optimize the binary for your CPU.
Makes it a few microseconds faster.
Scientific Linux6.5なので、
$ sudo yum install -y libpng-devel zlib-devel gcc-c++
ってやります。
全部すでに入ってましたけど！
次にコンパイルします
$ cd /home/user/src/mcmap/
$ make
これで「mcmap」は出来ます。
make turboってやると、今いる環境（CPUに対しての）に最適化してくれるらしいですけど好みです。（後述）
実行場所を/home/user/binにします。
$ mkdir -p /home/user/bin/mcmap/maps $ cd /home/user/bin/mcmap $ ln -s /home/user/src/mcmap/mcmap .
また、スクリプトで使う、pngcrushとconvertはそれぞれ、「pngcrush」「ImageMagick」を入れてください。
$ sudo yum info pngcrush Loaded plugins: security Installed Packages Name : pngcrush Arch : x86_64 Version : 1.7.66 Release : 1.el6.rf Size : 489 Repo : installed From repo : rpmforge Summary : Optimizer for PNG (Portable Network Graphics) files URL : http://pmt.sourceforge.net/pngcrush/ License : GPL Description : pngcrush is an optimizer for PNG (Portable Network Graphics) files. It can be : run from a commandline in an MSDOS window, or from a UNIX or LINUX commandline. : : Its main purpose is to reduce the size of the PNG IDAT datastream by trying : various compression levels an PNG filter methods. It also can be used to : remove unwanted ancillary chunks, or to add certain chunks including gAMA, : tRNS, iCCP, and textual chunks. $ sudo yum info ImageMagick Loaded plugins: security Installed Packages Name : ImageMagick Arch : x86_64 Version : 6.5.4.7 Release : 6.el6_2 Size : 6.4 M Repo : installed From repo : sl Summary : An X application for displaying and manipulating images URL : http://www.imagemagick.org/ License : ImageMagick Description : ImageMagick is an image display and manipulation tool for the X : Window System. ImageMagick can read and write JPEG, TIFF, PNM, GIF, : and Photo CD image formats. It can resize, rotate, sharpen, color : reduce, or add special effects to an image, and when finished you can : either save the completed work in the original format or a different : one. ImageMagick also includes command line programs for creating : animated or transparent .gifs, creating composite images, creating : thumbnail images, and more. : : ImageMagick is one of your choices if you need a program to manipulate : and display images. If you want to develop your own applications : which use ImageMagick code or APIs, you need to install : ImageMagick-devel as well. Available Packages Name : ImageMagick Arch : i686 Version : 6.5.4.7 Release : 6.el6_2 Size : 1.7 M Repo : sl Summary : An X application for displaying and manipulating images URL : http://www.imagemagick.org/ License : ImageMagick Description : ImageMagick is an image display and manipulation tool for the X : Window System. ImageMagick can read and write JPEG, TIFF, PNM, GIF, : and Photo CD image formats. It can resize, rotate, sharpen, color : reduce, or add special effects to an image, and when finished you can : either save the completed work in the original format or a different : one. ImageMagick also includes command line programs for creating : animated or transparent .gifs, creating composite images, creating : thumbnail images, and more. : : ImageMagick is one of your choices if you need a program to manipulate : and display images. If you want to develop your own applications : which use ImageMagick code or APIs, you need to install : ImageMagick-devel as well.
次に実行スクリプトの作成です。
これもフォーラムにあるスクリプトをちょろっと改変したものです。
ファイル名は「w.sh」です。
#!/bin/bash # http://www.minecraftforum.net/topic/37409-mcmap-isometric-renders-sspsmp-minecraft-131-support/ ## full path to mcmap binary cd /home/user/bin/mcmap ## path to your world WORLD=/home/user/minecraft_server1.6.2_forge/world/ ## path to write output image to OUTPUT="./maps" ## see below to change the area to render (lines that start with ##) ################################ FILE=history-`date +%s`-w.png NORMAL_F="w.png" OLD5=none if [ -e "$OUTPUT/$NORMAL_F" ]; then OLD5=`md5sum $OUTPUT/$NORMAL_F | cut -b 1-32` fi CHECK=`date +%k` NIGHT="-skylight" NIGHTSTATUS="0" #./mcmap -png $NIGHT -from -40 -60 -to 20 20 "$WORLD" > /dev/null ./mcmap -png $NIGHT "$WORLD" > /dev/null RET=$? if [ "$RET" -ne "0" ]; then echo "Error creating image for $FILE" exit 1; fi NEW5=`md5sum output.png | cut -b 1-32` if [ "$OLD5" != "$NEW5" ]; then mkdir -p $OUTPUT/history/ pngcrush output.png $OUTPUT/history/$FILE > /dev/null convert -scale 600 -depth 5 output.png thumb.png pngcrush -brute thumb.png $OUTPUT/history/thumb.$FILE > /dev/null mv output.png $OUTPUT/$NORMAL_F mv thumb.png $OUTPUT/thumb.$NORMAL_F fi
後は末尾にscpコマンドつけたり何だりしてWebから見れるようにすれば完成です。
ネザー、エンドのマップとか見たい場合には、
./mcmap -png -hell $NIGHT "$WORLD" > /dev/null ./mcmap -png -end $NIGHT "$WORLD" > /dev/null
とかに変更すれば作成出来ます。
（一度行っていないとエラーが出るかもしれない）
これで現在のマップ画像が/home/user/bin/mcmap/maps/w.png に出力されます。
これを定期的に作成する場合はcronで設定します。
$ chmod +x /home/user/bin/mcmap/w.sh $ crontab -e $ crontab -l 58 * * * * /home/user/bin/mcmap/w.sh
って設定すると毎時58分に、先ほど書いたw.shを実行してくれます。
おまけ
先ほど、mcmapコンパイル時に「make」でも「make turbo」でも変わらないと言いました。
ただ、あくまでうちの環境下だけかもしれませんので各々で試してみてください。
以下、参考までに実行結果です。
$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Xeon(R) CPU E31220 @ 3.10GHz stepping : 7 cpu MHz : 3092.973 cache size : 8192 KB fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology tsc_reliable nonstop_tsc aperfmperf unfair_spinlock pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 popcnt aes xsave avx hypervisor lahf_lm ida arat epb xsaveopt pln pts dts bogomips : 6185.94 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Xeon(R) CPU E31220 @ 3.10GHz stepping : 7 cpu MHz : 3092.973 cache size : 8192 KB fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology tsc_reliable nonstop_tsc aperfmperf unfair_spinlock pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 popcnt aes xsave avx hypervisor lahf_lm ida arat epb xsaveopt pln pts dts bogomips : 6185.94 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Xeon(R) CPU E31220 @ 3.10GHz stepping : 7 cpu MHz : 3092.973 cache size : 8192 KB fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology tsc_reliable nonstop_tsc aperfmperf unfair_spinlock pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 popcnt aes xsave avx hypervisor lahf_lm ida arat epb xsaveopt pln pts dts bogomips : 6185.94 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Xeon(R) CPU E31220 @ 3.10GHz stepping : 7 cpu MHz : 3092.973 cache size : 8192 KB fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts xtopology tsc_reliable nonstop_tsc aperfmperf unfair_spinlock pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 popcnt aes xsave avx hypervisor lahf_lm ida arat epb xsaveopt pln pts dts bogomips : 6185.94 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: $ cat /proc/meminfo MemTotal: 8061572 kB MemFree: 1281284 kB Buffers: 149188 kB Cached: 1443884 kB SwapCached: 7808 kB Active: 4602660 kB Inactive: 1786424 kB Active(anon): 3677968 kB Inactive(anon): 1118220 kB Active(file): 924692 kB Inactive(file): 668204 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 8208376 kB SwapFree: 8161992 kB Dirty: 3536 kB Writeback: 0 kB AnonPages: 4789716 kB Mapped: 25088 kB Shmem: 8 kB Slab: 297840 kB SReclaimable: 232212 kB SUnreclaim: 65628 kB KernelStack: 2288 kB PageTables: 14808 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 12239160 kB Committed_AS: 4815524 kB VmallocTotal: 34359738367 kB VmallocUsed: 159032 kB VmallocChunk: 34359574472 kB HardwareCorrupted: 0 kB AnonHugePages: 4681728 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 10240 kB DirectMap2M: 8378368 kB $ time ./mcmap -png -skylight "/home/user/minecraft_server1.6.2_forge/world/" > /dev/null ./mcmap -png -skylight > /dev/null 37.65s user 0.55s system 99% cpu 38.291 total $ rm -f output.png $ time ./mcmap.turbo -png -skylight "/home/user/minecraft_server1.6.2_forge/world/" > /dev/null ./mcmap.turbo -png -skylight > /dev/null 37.69s user 0.47s system 99% cpu 38.196 total
というわけであんまり差がない気がするのでどちらでもいいんじゃないかなぁという、私の中での結論でした。
