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Old 07-14-2012, 06:59 AM   #1
mmatej
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Puzzle swapping minigame

I was so bored that I've made this stupid minigame. It's written as shell script, so don't expect it wil be fast as hell. (init takes 3 mins)
Spoiler:

Code:
#!/bin/sh
[ "${#}" -ne 2 ] &&
{
echo "Usage: ${0} <blocks per X> <blocks per Y>"
return 1
}
fb='/dev/fb0'
ddfb()# <bs> <count> [skip] [seek]
{
sk=0
se=0
[ -n "${3}" ] && sk="${3}"
[ -n "${4}" ] && se="${4}"
dd if="${fb}" of="${fb}" bs=${1} count=${2} skip=${sk} seek=${se} > /dev/null 2>&1
}
copyH()# <fromY> <toY> <height>
{
ddfb 608 "${3}" "${1}" "${2}"
}
copyrect()# <fromX> <fromY> <width> <height> <toX> <toY>
{
fendY=$(expr ${2} + ${4})
taY=${6}
for i in $(seq ${2} ${fendY}); do
ddfb 1 ${3} $(expr 608 \* ${i} + ${1}) $(expr 608 \* ${taY} + ${5})
taY=$(expr ${taY} + 1)
done
}
fillrect()# <toX> <toY> <width> <height> [hex_color]
{
hex='00'
[ -n "${5}" ] &&
{
hex=${5}
[ "${#hex}" -ne 2 ] && hex='0'"${hex}"
}
fendY=$(expr ${2} + ${4})
taY=${2}
for i in $(seq ${2} ${fendY}); do
[ "${hex}" == '00' ] && dd if="/dev/zero" of="${fb}" bs=1 count=${3} seek=$(expr ${i} \* 608 + ${1}) > /dev/null 2>&1
[ "${hex}" != '00' ] && cat /dev/zero|tr '\x00' '\x'"${hex}"|dd of="${fb}" bs=1 count=${3} seek=$(expr ${i} \* 608 + ${1}) > /dev/null 2>&1
taY=$(expr ${taY} + 1)
done
}
grid()
{
for x in $(seq 1 "$(expr ${X} - 1)"); do fillrect $(expr ${x} \* ${W} - ${T}) 0 $(expr 2 \* ${T}) 800; done
for y in $(seq 1 "$(expr ${Y} - 1)"); do fillrect 0 $(expr ${y} \* ${H} - ${T}) 600 $(expr 2 \* ${T}); done
fillrect 0 0 600 1
fillrect 0 800 600 1
fillrect 0 0 1 800
fillrect 600 0 1 800
}
blitblock()
{
fr="$(expr ${2} + ${NUM} - 1)"
to="$(expr ${1} - 1)"
fx=$(expr "$(expr ${fr} % ${X})" \* ${W})
fy=$(expr "$(expr ${fr} / ${X})" \* ${H})
tx=$(expr "$(expr ${to} % ${X})" \* ${W})
ty=$(expr "$(expr ${to} / ${X})" \* ${H})
copyrect ${fx} ${fy} ${W} ${H} ${tx} ${ty}
}
blitchanged()
{
[ "${oblocks}" == "${blocks}" ] && return
echo -n "Updating changed blocks... "
for i in $(seq 1 ${NUM}); do
old="$(getf "$oblocks" ${i})"
new="$(getf "$blocks" ${i})"
if [ "${old}" != "${new}" ]; then
blitblock ${i} ${new}
fi
done
oblocks="${blocks}"
echo 'done'
}
swap()
{
to1="$(getf "${blocks}" ${1})"
to2="$(getf "${blocks}" ${2})"
nblocks=''
for i in $(seq 1 ${NUM}); do
[ ${i} -ne 1 ] && nblocks="${nblocks}"' '
[ ${i} -eq ${1} ] &&
{
nblocks="${nblocks}""${to2}"
continue
}
[ ${i} -eq ${2} ] &&
{
nblocks="${nblocks}""${to1}"
continue
}
a="$(getf "${blocks}" ${i})"
nblocks="${nblocks}""${a}"
done
blocks="${nblocks}"
}
decode16()
{
local b="$(echo "$1"|cut -d' ' -f 1)"
local a="$(echo "$1"|cut -d' ' -f 2)"
echo "$(expr 256 \* $a + $b)"
}
randnum()
{
rstr="$(xd -qdbl 3 /dev/urandom|cut -d' ' -f 2,3,4)"
c="$(getf "${rstr}" 1)"
b="$(getf "${rstr}" 2)"
a="$(getf "${rstr}" 3)"
rnum="$(expr 65536 \* ${a} + 256 \* ${b} + ${c})"
echo "$(expr ${rnum} % "$(expr ${2} - ${1} + 1)" + ${1})"
}
getf()
{
echo "$(echo "${1}"|cut -d' ' -f ${2})"
}
getdiff()
{
first=${1}
second=${2}
[ ${2} -gt ${1} ] &&
{
first=${2}
second=${1}
}
echo "$(expr ${first} - ${second})"
}
checkgame()
{
local count=0
for i in $(seq 1 ${NUM}); do
local acb="$(getf "${blocks}" ${i})"
[ ${acb} -ne ${i} ] && count="$(expr ${count} + 1)"
done
echo "${count}"
}

[ "$(expr 608 % ${1})" -ne 0 ] && { echo "608 not divisable by ${1} (X)";return 1; }
[ "$(expr 800 % ${2})" -ne 0 ] && { echo "800 not divisable by ${2} (Y)";return 1; }
killall -stop cvm framework Xorg
trap "copyH 1600 0 800;eips -f '';killall -cont cvm framework Xorg;exit;" SIGINT SIGTERM EXIT
echo "Initializing..."
X=${1}
Y=${2}
W="$(expr 600 / ${X})"
H="$(expr 800 / ${Y})"
NUM="$(expr ${X} \* ${Y})"
T=1
IFS='
'
blocks=''
for i in $(seq 1 ${NUM}); do
[ ${i} -ne 1 ] && blocks="${blocks}"' '
blocks="${blocks}""${i}"
done
oblocks="${blocks}"
copyH 0 1600 800
echo "Creating grid..."
grid
copyH 0 800 800
eips ''
echo "Shuffling blocks..."
rseq=''
for i in $(seq 1 ${NUM}); do
[ ${i} -ne 1 ] && rseq="${rseq}"' '
rseq="${rseq}""${i}"
done
blocks=''
for i in $(seq 1 ${NUM}); do
echo "${i}/${NUM}"
to="$(expr ${NUM} - ${i} + 1)"
rn="$(randnum 1 "${to}")"
nseq=''
added=0
for j in $(seq 1 "${to}"); do
tnum="$(getf "${rseq}" ${j})"
[ ${j} -eq ${rn} ] &&
{
[ ${i} -ne 1 ] && blocks="${blocks}"' '
blocks="${blocks}""${tnum}"
continue
}
[ ${added} -eq 1 ] && nseq="${nseq}"' '
nseq="${nseq}""${tnum}"
added=1
done
rseq="${nseq}"
done
#blocks="${oblocks}"
blitchanged
echo "Done."
eips -f ''

sel=0
oldx=0
oldy=0
while true; do
bb=-1
[ ${sel} -eq 0 ] && bb="$(checkgame)"
[ ${bb} -eq 0 ] &&
{
trap - SIGINT SIGTERM EXIT
trap "eips -f '';killall -cont cvm framework Xorg;exit;" SIGINT SIGTERM EXIT
copyH 1600 0 800
eips ''
echo "You have won!"
sleep 5
break
}
[ ${bb} -ne -1 ] && echo "You have ${bb} misplaced blocks."
have_e=0
xa=0
ya=0
while [ ${have_e} -eq 0 ]; do
for data in $(xd -qdbl 96 /dev/input/event3); do
[ "$(getf "${data}" 10)" -ne '003' ] && continue
code="$(getf "${data}" 12)"
[ "${code}" == '057' ] && continue
pos="$(echo "${data}"|cut -d' ' -f 14,15)"
rpos="$(decode16 "${pos}")"
[ ${code} -eq 53 ] && xa="${rpos}"
[ ${code} -eq 54 ] && ya="${rpos}"
done
have_e=1
[ ${xa} -eq 0 ] && { have_e=0;continue; }
[ ${ya} -eq 0 ] && { have_e=0;continue; }
break
done
xr="$(expr ${xa} \* 600 / 4095)"
yr="$(expr ${ya} \* 800 / 4095)"
x="$(expr ${xr} / ${W})"
y="$(expr ${yr} / ${H})"
bid="$(expr ${y} \* ${X} + ${x} + 1)"
[ ${sel} -eq 0 ] &&
{
sel="${bid}"
echo -n "${sel} -> "
oldx=${x}
oldy=${y}
continue
}
[ ${bid} -eq ${sel} ] &&
{
echo 'X'
sel=0
continue
}
xchange="$(getdiff ${oldx} ${x})"
ychange="$(getdiff ${oldy} ${y})"
poschange="$(expr ${xchange} + ${ychange})"
[ ${poschange} -ne 1 ] &&
{
echo 'X'
sel=0
continue
}
echo "${bid}"
swap ${sel} ${bid}
blitchanged
eips ''
sel=0
done
dd if="/dev/zero" of="/dev/fb0" bs=608 seek=800 > /dev/null 2>&1
exit

Screen:
Spoiler:

You can swap only adjacent blocks. Have fun!
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Old 07-14-2012, 07:25 AM   #2
twobob
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Quality. Everyone in my house - by sheer coincidence - is terrible at these puzzles.

MUHAHHAHHAHA! I can definitely see this being installed and run while some is at the bathroom

have to see about a c port of this. Great work mate
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Old 07-14-2012, 07:29 AM   #3
aditya3098
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Initiating...
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Old 07-14-2012, 07:40 AM   #4
mmatej
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Quote:
Originally Posted by twobob View Post
Quality. Everyone in my house - by sheer coincidence - is terrible at these puzzles.

MUHAHHAHHAHA! I can definitely see this being installed and run while some is at the bathroom

have to see about a c port of this. Great work mate
Good and evil use of the game
I've firstly wanted to write this in C++, but I wasn't able to cross-compile hello world for KT on Ubuntu. I know about tcc for the Kindle, but I hate C (C-like languages are ugly without things like STL which speeds up development process a lot).
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Old 07-14-2012, 07:42 AM   #5
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Quote:
Originally Posted by aditya3098 View Post
Initiating...
It should not take more than 5 mins. (sure if you set 100x200 grid it will take years). Is it still initializing?
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Old 07-14-2012, 07:44 AM   #6
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Yes, and I set 304x400
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Old 07-14-2012, 07:48 AM   #7
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The wiki is slightly mistaken (will update it in a few minutes)
install using sudo apt-get install gcc-4.6-arm-linux-gnueabi


And execute using arm-linux-gnueabi-gcc-4.6. (i.e arm-linux-gnueabi-gcc-4.6 hello.c -o hello)
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Old 07-14-2012, 08:00 AM   #8
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Quote:
Originally Posted by aditya3098 View Post
The wiki is slightly mistaken (will update it in a few minutes)
install using sudo apt-get install gcc-4.6-arm-linux-gnueabi


And execute using arm-linux-gnueabi-gcc-4.6. (i.e arm-linux-gnueabi-gcc-4.6 hello.c -o hello)
Thanks, but I didn't say I've failed at the "install build toolset" part. I was able to install build env. I was able to compile program which returns 0 (there were no headers included). I was not able to compile when I've included iostream and used it - there were some weird header errors which I've seen the first time. I have no cross-compiling experience, so I think it's only minor problem, but I haven't had time to investigate further.
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Old 07-14-2012, 08:00 AM   #9
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Nice to see something new coming out of my work on the eink algorithmic art scripting thread. Using "dd" as a blitter to draw on the framebuffer device is classic.

Other people have contributed scripts to the "algorithmic art" thread too, and PoP even converted his "3D" script to a C program later.

Doing this stuff in a script is more just for fun, to show that it CAN be done even with the most primitive of tools. That alone makes it really cool!

Thanks for sharing.
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Old 07-14-2012, 08:15 AM   #10
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Quote:
Originally Posted by aditya3098 View Post
Yes, and I set 304x400
EDIT: Did you want to set 2x2 grid? You should run it with "./puzzle.sh 2 2" then.

Last edited by mmatej; 07-14-2012 at 08:27 AM.
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Old 07-14-2012, 08:26 AM   #11
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Still loading, and hourly indian power cuts don't help. Get about 12 hour of power daily.
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Old 07-14-2012, 08:39 AM   #12
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Quote:
Originally Posted by aditya3098 View Post
Still loading, and hourly indian power cuts don't help. Get about 12 hour of power daily.
See my previous post. I am testing now 16x32 grid and it looks unplayable.
EDIT: Yes, it's pure masochism:
Spoiler:
(mobileread website)

Last edited by mmatej; 07-14-2012 at 08:58 AM.
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