Original content
Guillaume
11 years ago
commit
96832aa52c
@ -0,0 +1,222 @@
|
|||||||
|
#!/usr/bin/env make
|
||||||
|
#
|
||||||
|
# 2012 makefile
|
||||||
|
#
|
||||||
|
# This work by Landon Curt Noll, Simon Cooper, and Leonid A. Broukhis
|
||||||
|
# is licensed under:
|
||||||
|
#
|
||||||
|
# Creative Commons Attribution-ShareAlike 3.0 Unported License.
|
||||||
|
#
|
||||||
|
# See: http://creativecommons.org/licenses/by-sa/3.0/
|
||||||
|
|
||||||
|
|
||||||
|
################
|
||||||
|
# tool locations
|
||||||
|
################
|
||||||
|
#
|
||||||
|
SHELL= /bin/bash
|
||||||
|
CP= cp
|
||||||
|
CPP= cpp
|
||||||
|
GUNZIP= gunzip
|
||||||
|
LD= ld
|
||||||
|
MAKE= make
|
||||||
|
RM= rm
|
||||||
|
SED= sed
|
||||||
|
TAR= tar
|
||||||
|
TRUE= true
|
||||||
|
|
||||||
|
# Set X11_LIBDIR to the directory where the X11 library resides
|
||||||
|
#
|
||||||
|
X11_LIBDIR= /usr/X11R6/lib
|
||||||
|
|
||||||
|
# Set X11_INCLUDEDIR to the directory where the X11 include files reside
|
||||||
|
#
|
||||||
|
X11_INCDIR= /usr/X11R6/include
|
||||||
|
|
||||||
|
# Compiler warnings
|
||||||
|
#
|
||||||
|
#CWARN=
|
||||||
|
#CWARN= -Wall -W
|
||||||
|
CWARN= -Wall -W -pedantic
|
||||||
|
|
||||||
|
# compiler standard
|
||||||
|
#
|
||||||
|
#CSTD=
|
||||||
|
#CSTD= -ansi
|
||||||
|
CSTD= -std=c99
|
||||||
|
|
||||||
|
# compiler bit architecture
|
||||||
|
#
|
||||||
|
# Some entries require 32-bitness:
|
||||||
|
# ARCH= -m32
|
||||||
|
#
|
||||||
|
# Some entries require 64-bitess:
|
||||||
|
# ARCH= -m64
|
||||||
|
#
|
||||||
|
# By default we assume nothing:
|
||||||
|
#
|
||||||
|
ARCH=
|
||||||
|
|
||||||
|
# optimization
|
||||||
|
#
|
||||||
|
# Most compiles will safely use -O2. Some can use only -O1 or -O.
|
||||||
|
# A few compilers have broken optimizers or this entry make break
|
||||||
|
# under those buggy optimizers and thus you may not want anything.
|
||||||
|
#
|
||||||
|
#OPT=
|
||||||
|
#OPT= -O
|
||||||
|
#OPT= -O1
|
||||||
|
OPT= -O2
|
||||||
|
#OPT= -O3
|
||||||
|
|
||||||
|
# Libraries needed to build
|
||||||
|
#
|
||||||
|
LIBS= -lm
|
||||||
|
|
||||||
|
# default flags for ANSI C compilation
|
||||||
|
#
|
||||||
|
CFLAGS= ${CWARN} ${CSTD} ${ARCH} ${OPT}
|
||||||
|
|
||||||
|
# ANSI compiler
|
||||||
|
#
|
||||||
|
# Set CC to the name of your ANSI compiler.
|
||||||
|
#
|
||||||
|
# Some entries seem to need gcc. If you have gcc, set
|
||||||
|
# both CC and MAY_NEED_GCC to gcc.
|
||||||
|
#
|
||||||
|
# If you do not have gcc, set CC to the name of your ANSI compiler, and
|
||||||
|
# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
|
||||||
|
# to disable such programs.
|
||||||
|
#
|
||||||
|
CC= cc
|
||||||
|
#CC=clang
|
||||||
|
MAY_NEED_GCC= gcc
|
||||||
|
|
||||||
|
|
||||||
|
##############################
|
||||||
|
# Special flags for this entry
|
||||||
|
##############################
|
||||||
|
#
|
||||||
|
ENTRY= endoh1
|
||||||
|
DATA= column.txt column2.txt column3.txt corners.txt dripping-pan.txt \
|
||||||
|
evaporation.txt flat.txt fountain.txt funnel.txt funnel2.txt \
|
||||||
|
funnel3.txt leidenfrost.txt logo.txt pour-out.txt tanada.txt
|
||||||
|
ALT_OBJ= endoh1_color.o
|
||||||
|
ALT_ENTRY= endoh1_color
|
||||||
|
|
||||||
|
# The factor of gravity
|
||||||
|
#
|
||||||
|
G=1
|
||||||
|
|
||||||
|
# The factor of pressure
|
||||||
|
#
|
||||||
|
P=4
|
||||||
|
|
||||||
|
# The factor of viscosity
|
||||||
|
#
|
||||||
|
V=8
|
||||||
|
|
||||||
|
#################
|
||||||
|
# build the entry
|
||||||
|
#################
|
||||||
|
#
|
||||||
|
all: ${ENTRY} ${DATA}
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
${ENTRY}: ${ENTRY}.c
|
||||||
|
${CC} ${CFLAGS} -DG=$G -DP=$P -DV=$P $< -o $@ ${LIBS}
|
||||||
|
|
||||||
|
# alternative executable
|
||||||
|
#
|
||||||
|
alt: ${ALT_ENTRY}
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
endoh1_deobfuscate: endoh1_deobfuscate.c
|
||||||
|
${CC} ${CFLAGS} -DG=$G -DP=$P -DV=$P $< -o $@ ${LIBS}
|
||||||
|
|
||||||
|
endoh1_color: endoh1_color.c
|
||||||
|
${CC} ${CFLAGS} -DG=$G -DP=$P -DV=$P $< -o $@ ${LIBS}
|
||||||
|
|
||||||
|
# data files
|
||||||
|
#
|
||||||
|
data: ${DATA}
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
|
||||||
|
###############
|
||||||
|
# utility rules
|
||||||
|
###############
|
||||||
|
#
|
||||||
|
everything: all alt
|
||||||
|
|
||||||
|
clean:
|
||||||
|
${RM} -f ${ENTRY}.o ${ALT_OBJ}
|
||||||
|
|
||||||
|
clobber: clean
|
||||||
|
${RM} -f ${ENTRY} ${ALT_ENTRY}
|
||||||
|
|
||||||
|
nuke: clobber
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
dist_clean: nuke
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
install:
|
||||||
|
@echo "Surely you're joking Mr. Feynman!"
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
# backwards compatibility
|
||||||
|
#
|
||||||
|
build: all
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
|
||||||
|
##################
|
||||||
|
# 133t hacker rulz
|
||||||
|
##################
|
||||||
|
#
|
||||||
|
love:
|
||||||
|
@echo 'not war?'
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
haste:
|
||||||
|
$(MAKE) waste
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
waste:
|
||||||
|
@echo 'waste'
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
easter_egg:
|
||||||
|
@echo you expected to mis-understand this $${RANDOM} magic
|
||||||
|
@echo chongo '<was here>' "/\\oo/\\"
|
||||||
|
@echo Readers shall be disallowed from not being unable to partly misunderstand this partocular final echo.
|
||||||
|
|
||||||
|
# Understand the history of "I Am the Walrus" and
|
||||||
|
# and in particular John Lennon's remarks on that
|
||||||
|
# song and you might be confused about these next
|
||||||
|
# rules in a different way. :-)
|
||||||
|
#
|
||||||
|
supernova: nuke
|
||||||
|
@-if [ -r .code_anal ]; then \
|
||||||
|
${RM} -f .code_anal_v3; \
|
||||||
|
else \
|
||||||
|
echo "You are not expected to understand this"; \
|
||||||
|
fi
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
deep_magic:
|
||||||
|
@-if [ -r .code_anal ]; then \
|
||||||
|
ccode_analysis --deep_magic 1c2c85c7a02c55d1add91967eca491d53c101dc1 --FNV1a_hash 256-bit "${ENTRY}"; \
|
||||||
|
else \
|
||||||
|
echo "Understand different"; \
|
||||||
|
fi
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
magic: deep_magic
|
||||||
|
@-if [ -r .code_anal ]; then \
|
||||||
|
ccode_analysis --mode 21701 --level 23209 --FNV1a_hash 256-bit "${ENTRY}"; \
|
||||||
|
else \
|
||||||
|
echo "These aren't the droids you're looking for Mr. Spock!"; \
|
||||||
|
fi
|
||||||
|
@${TRUE}
|
||||||
@ -0,0 +1,22 @@
|
|||||||
|
# the factor of gravity
|
||||||
|
G=1
|
||||||
|
# the factor of pressure
|
||||||
|
P=4
|
||||||
|
# the factor of viscosity
|
||||||
|
V=8
|
||||||
|
RM= rm
|
||||||
|
TRUE= true
|
||||||
|
CWARN= -Wall -W -Wextra -pedantic
|
||||||
|
CSTD= -std=c99 -D_BSD_SOURCE
|
||||||
|
CFLAGS= ${CWARN} ${CSTD} ${ARCH} ${OPT}
|
||||||
|
CC= gcc
|
||||||
|
ENTRY= prog
|
||||||
|
|
||||||
|
all: ${ENTRY}
|
||||||
|
@${TRUE}
|
||||||
|
|
||||||
|
${ENTRY}: ${ENTRY}.c
|
||||||
|
${CC} ${CFLAGS} -DG=$G -DP=$P -DV=$P ${ENTRY}.c -o $@ -lm
|
||||||
|
|
||||||
|
clean:
|
||||||
|
$(RM) -f ${ENTRY}
|
||||||
@ -0,0 +1,24 @@
|
|||||||
|
########################
|
||||||
|
##xxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxx##
|
||||||
|
###xxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxx###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
## ##
|
||||||
|
## ##
|
||||||
|
## ##
|
||||||
|
## ##
|
||||||
|
## ##
|
||||||
|
########################
|
||||||
|
|
||||||
@ -0,0 +1,23 @@
|
|||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
### ............... ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ................. ###
|
||||||
|
### ............... ###
|
||||||
|
##########################################################################
|
||||||
|
########################################################################
|
||||||
@ -0,0 +1,22 @@
|
|||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
### .......... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ...........
|
||||||
|
### ...........
|
||||||
|
### ...........
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... # ###
|
||||||
|
### .......... ### ###
|
||||||
|
##############################################################################
|
||||||
|
############################################################################
|
||||||
@ -0,0 +1,22 @@
|
|||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
### .......... ###
|
||||||
|
### .................................................................###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ...........
|
||||||
|
### ...........
|
||||||
|
### ...........
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... ###
|
||||||
|
### ........... # ###
|
||||||
|
### .......... ### ###
|
||||||
|
##############################################################################
|
||||||
|
############################################################################
|
||||||
@ -0,0 +1,23 @@
|
|||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
# #
|
||||||
|
# #
|
||||||
|
# #
|
||||||
|
#@ @#
|
||||||
|
###############################################################################
|
||||||
@ -0,0 +1,23 @@
|
|||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
# #
|
||||||
|
# #
|
||||||
|
# @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ #
|
||||||
|
#@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @#
|
||||||
|
##################################### #######################################
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
@ -0,0 +1,23 @@
|
|||||||
|
# include<stdio.h>// .IOCCC Fluid- #
|
||||||
|
# include <unistd.h> //2012 _Sim!_ #
|
||||||
|
# include<complex.h> //|||| ,____. IOCCC- #
|
||||||
|
# define h for( x=011; 2012/* #
|
||||||
|
# */-1>x ++;)b[ x]//-' winner #
|
||||||
|
# define f(p,e) for(/* #
|
||||||
|
# */p=a; e,p<r; p+=5)// #
|
||||||
|
# define z(e,i) f(p,p/* #
|
||||||
|
## */[i]=e)f(q,w=cabs (d=*p- *q)/2- 1)if(0 <(x=1- w))p[i]+=w*/// ##
|
||||||
|
double complex a [ 97687] ,*p,*q ,*r=a, w=0,d; int x,y;char b/* ##
|
||||||
|
## */[6856]="\x1b[2J" "\x1b" "[1;1H ", *o= b, *t; int main (){/** ##
|
||||||
|
## */for( ;0<(x= getc ( stdin) );)w=x >10?32< x?4[/* ##
|
||||||
|
## */*r++ =w,r]= w+1,*r =r[5]= x==35, r+=9:0 ,w-I/* ##
|
||||||
|
## */:(x= w+2);; for(;; puts(o ),o=b+ 4){z(p [1]*/* ##
|
||||||
|
## */9,2) w;z(G, 3)(d*( 3-p[2] -q[2]) *P+p[4 ]*V-/* ##
|
||||||
|
## */q[4] *V)/p[ 2];h=0 ;f(p,( t=b+10 +(x=*p *I)+/* ##
|
||||||
|
## */80*( y=*p/2 ),*p+=p [4]+=p [3]/10 *!p[1]) )x=0/* ##
|
||||||
|
## */ <=x &&x<79 &&0<=y&&y<23?1[1 [*t|=8 ,t]|=4,t+=80]=1/* ##
|
||||||
|
## */, *t |=2:0; h=" '`-.|//,\\" "|\\_" "\\/\x23\n"[x/** ##
|
||||||
|
## */%80- 9?x[b] :16];;usleep( 12321) ;}return 0;}/* ##
|
||||||
|
#### ####
|
||||||
|
###############################################################################
|
||||||
|
**###########################################################################*/
|
||||||
@ -0,0 +1,30 @@
|
|||||||
|
# include<stdio.h>// .IOCCC Fluid- #
|
||||||
|
# include <unistd.h> //2012 _Sim!_ #
|
||||||
|
# include<complex.h> //|||| ,____. |||||| #
|
||||||
|
# define c y+=( x=ctanh( -cabs/* #
|
||||||
|
# */(4[t ]-=20) /2+9)* 3+3)*// #
|
||||||
|
# define f(p,e) for(p/* #
|
||||||
|
# */=a;e ,p<r;p +=5)/// #
|
||||||
|
# define z(e,i) f(p,p/* #
|
||||||
|
## */[i]=e)f(q,w=cabs (d=*p- *q)/2- 1)if(0 <(x=1- w))p[i]+=w*/// ##
|
||||||
|
double complex a [ 97687] ,*p,*q ,*r=a, w=0,d; char b[97687]=/* ##
|
||||||
|
## */"GO\x1b[2J\x1b[" "1;1H" ,*o=b, *t;int x,y,j; void h(int e){/** ##
|
||||||
|
## */for( t=b;b+ 24045> (t+=12 );c 6, sprintf (t,/** ##
|
||||||
|
## */"%c" "[48%" "c5;%" "03dm" "%c",3 *9,e,c 36,e/* ##
|
||||||
|
## */?(t- b)%960 ?(15-t [11])[ "\x23" "/\\_" "\\"/* ##
|
||||||
|
## */"||" ",//|" ".-`' "]:10: 0)) y= 0020,c 01;}/* ##
|
||||||
|
## */void g( int i){7[t +=i]|= x/=2;* t+=y=p [2];/* ##
|
||||||
|
## */}int main() {for(;( x=getc (stdin ))>0;)w =10</* ##
|
||||||
|
## */x?32 <x?4[* r++=w,r]=w+1,*r= r[5]=x ==35,r+=9:0,w-I/* ##
|
||||||
|
## */:(x= w+02); for(;;puts(o),o =b+6){ z(p[1]*9,2)w;z/* ##
|
||||||
|
## */(G,3 )(d*(3 -p[2]-q[2])*P +p[4]* V-q[4]*V )/p/* ##
|
||||||
|
#### ####
|
||||||
|
###############################################################################
|
||||||
|
**###########################################################################*/
|
||||||
|
|
||||||
|
[2];h(0 );f(p,* p+= p[4]+=p [3]/10*!p
|
||||||
|
[1] )(t =b+ 16+ (x= *p* I)* 12+ 960
|
||||||
|
*(y =*p /2) ,x= 0<= x&& 79> x&&
|
||||||
|
0<= y&& 23> y?x =16 ,g( 0),g(12),
|
||||||
|
g(+ 948 ),g (12 ),0 :0) ;h( 59) ;;;
|
||||||
|
usleep( 12321); }return 0;} /*IOCCC '12 **/
|
||||||
@ -0,0 +1,31 @@
|
|||||||
|
#include <stdio.h>// .IOCCC Fluid- #
|
||||||
|
#include <unistd.h> //2012 _Sim!_ #
|
||||||
|
#include <complex.h> //|||| ,____. IOCCC- #
|
||||||
|
double complex a[97687], *p, *q, *r = a, w = 0, d;
|
||||||
|
int x , y;
|
||||||
|
char b [6856] = "\x1b[2J" "\x1b" "[1;1H ", *o = b, *t;
|
||||||
|
int
|
||||||
|
main()
|
||||||
|
{
|
||||||
|
|
||||||
|
for (; 0 < (x = getc(stdin));)
|
||||||
|
w = x > 10 ? 32 < x ? 4[*r++ = w, r] = w + 1, *r = r[5] = x == 35, r += 9 : 0, w - I : (x = w + 2);;
|
||||||
|
for (;; puts(o), o = b + 4) {
|
||||||
|
for (p = a; p[2] = p[1] * 9, p < r; p += 5)
|
||||||
|
for (q = a; w = cabs(d = *p - *q) / 2 - 1, q < r; q += 5)
|
||||||
|
if (0 < (x = 1 - w))
|
||||||
|
p[2] += w * w;
|
||||||
|
for (p = a; p[3] = G, p < r; p += 5)
|
||||||
|
for (q = a; w = cabs(d = *p - *q) / 2 - 1, q < r; q += 5)
|
||||||
|
if (0 < (x = 1 - w))
|
||||||
|
p[3] += w * (d * (3 - p[2] - q[2]) * P + p[4] * V - q[4] * V) / p[2];
|
||||||
|
for (x = 011; 2012 - 1 > x++;)
|
||||||
|
b[x] = 0;
|
||||||
|
for (p = a; (t = b + 10 + (x = *p * I) + 80 * (y = *p / 2), *p += p[4] += p[3] / 10 * !p[1]), p < r; p += 5)
|
||||||
|
x = 0 <= x && x < 79 && 0 <= y && y < 23 ? 1[1[*t |= 8, t] |= 4, t += 80] = 1, *t |= 2 : 0;
|
||||||
|
for (x = 011; 2012 - 1 > x++;)
|
||||||
|
b[x] = " '`-.|//,\\" "|\\_" "\\/\x23\n"[x % 80 - 9 ? x[b] : 16];;
|
||||||
|
|
||||||
|
usleep(12321);
|
||||||
|
} return 0;
|
||||||
|
}
|
||||||
@ -0,0 +1,23 @@
|
|||||||
|
@
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
# #
|
||||||
|
# #
|
||||||
|
# #
|
||||||
|
# #
|
||||||
|
###############################################################################
|
||||||
@ -0,0 +1,23 @@
|
|||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
# #
|
||||||
|
# #
|
||||||
|
# #
|
||||||
|
#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#
|
||||||
|
###############################################################################
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
@ -0,0 +1,23 @@
|
|||||||
|
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
x
|
||||||
|
### x ###
|
||||||
|
### x ###
|
||||||
|
### x ###
|
||||||
|
#############
|
||||||
@ -0,0 +1,23 @@
|
|||||||
|
# #
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxxxx#
|
||||||
|
#xxxxxxxxxx#
|
||||||
|
#xxxxxxxx#
|
||||||
|
#xxxxxx#
|
||||||
|
#xxxx#
|
||||||
|
####
|
||||||
@ -0,0 +1,23 @@
|
|||||||
|
## ##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxxxx##
|
||||||
|
##xxxxxxxxxx##
|
||||||
|
##xxxxxxxx##
|
||||||
|
##xxxxxx##
|
||||||
|
##xxxx##
|
||||||
|
######
|
||||||
@ -0,0 +1,24 @@
|
|||||||
|
### ###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxxxx###
|
||||||
|
###xxxxxxxxxx###
|
||||||
|
###xxxxxxxx###
|
||||||
|
###xxxxxx###
|
||||||
|
###xxxx###
|
||||||
|
########
|
||||||
|
########
|
||||||
@ -0,0 +1,22 @@
|
|||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
###.......................###
|
||||||
|
###.......................###
|
||||||
|
###.......................###
|
||||||
|
###.......................###
|
||||||
|
###.......................###
|
||||||
|
###.......................###
|
||||||
|
###.......................###
|
||||||
|
###.......................###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
### ###
|
||||||
|
#############################
|
||||||
|
#############################
|
||||||
@ -0,0 +1,78 @@
|
|||||||
|
* {
|
||||||
|
font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
|
||||||
|
}
|
||||||
|
body {
|
||||||
|
max-width: 50em;
|
||||||
|
margin: 0 auto;
|
||||||
|
color: #111;
|
||||||
|
}
|
||||||
|
|
||||||
|
pre, code {
|
||||||
|
font-family: Monaco, Courier New, monospace;
|
||||||
|
font-size: 12px;
|
||||||
|
}
|
||||||
|
|
||||||
|
h1 {
|
||||||
|
font-size: 40px;
|
||||||
|
font-weight: bold;
|
||||||
|
letter-spacing: -1px;
|
||||||
|
margin-bottom: -5px;
|
||||||
|
}
|
||||||
|
h1 code {
|
||||||
|
font-size: 40px;
|
||||||
|
}
|
||||||
|
|
||||||
|
h2 {
|
||||||
|
color: rgb(43,105,145);
|
||||||
|
font-weight: bold;
|
||||||
|
margin-bottom: -5px;
|
||||||
|
}
|
||||||
|
h2 code {
|
||||||
|
font-size: 22px;
|
||||||
|
}
|
||||||
|
|
||||||
|
h3 {
|
||||||
|
/* color: rgb(43,105,145); */
|
||||||
|
font-weight: bold;
|
||||||
|
margin-bottom: -5px;
|
||||||
|
}
|
||||||
|
h3 code {
|
||||||
|
font-size: 16px;
|
||||||
|
}
|
||||||
|
|
||||||
|
a {
|
||||||
|
color: blue;
|
||||||
|
text-decoration: underline;
|
||||||
|
}
|
||||||
|
a:visited {
|
||||||
|
color: navy;
|
||||||
|
}
|
||||||
|
a:hover {
|
||||||
|
text-decoration: underline;
|
||||||
|
}
|
||||||
|
|
||||||
|
pre {
|
||||||
|
border-radius: 10px;
|
||||||
|
-webkit-border-radius: 10px;
|
||||||
|
-moz-border-radius: 10px;
|
||||||
|
box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.3);
|
||||||
|
-webkit-box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.3);
|
||||||
|
-moz-box-shadow: 0px 2px 8px rgba(0, 0, 0, 0.3);
|
||||||
|
border-width: 1px;
|
||||||
|
border-color: rgb(16,48,0);
|
||||||
|
border-style: solid;
|
||||||
|
padding: 0.6em;
|
||||||
|
padding-left: 1em;
|
||||||
|
margin-left: 5%;
|
||||||
|
margin-right: 8%;
|
||||||
|
background-color: rgb(16,48,0);
|
||||||
|
overflow: auto;
|
||||||
|
color: rgb(75,224,0);
|
||||||
|
}
|
||||||
|
|
||||||
|
p, li {
|
||||||
|
font-size: 14px;
|
||||||
|
line-height: 18px;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
@ -0,0 +1,211 @@
|
|||||||
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
||||||
|
<html>
|
||||||
|
<head>
|
||||||
|
<meta name="GENERATOR" content="mkd2html 2.1.5a DL=DISCOUNT">
|
||||||
|
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
|
||||||
|
<link rel="stylesheet"
|
||||||
|
type="text/css"
|
||||||
|
href="hint.css">
|
||||||
|
<title>Most complex ASCII fluid - Honorable mention</title>
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<h1>Most complex ASCII fluid - Honorable mention</h1>
|
||||||
|
|
||||||
|
<p>Yusuke Endoh<br>
|
||||||
|
<a href="mailto:mame@tsg.ne.jp">mame@tsg.ne.jp</a></p>
|
||||||
|
|
||||||
|
<h2>Judges' comments:</h2>
|
||||||
|
|
||||||
|
<h3>To build:</h3>
|
||||||
|
|
||||||
|
<pre><code>make endoh1
|
||||||
|
</code></pre>
|
||||||
|
|
||||||
|
<h3>To run:</h3>
|
||||||
|
|
||||||
|
<pre><code>./endoh1 < configuration.txt
|
||||||
|
</code></pre>
|
||||||
|
|
||||||
|
<h3>Try:</h3>
|
||||||
|
|
||||||
|
<pre><code>./endoh1 < endoh1.c
|
||||||
|
|
||||||
|
./endoh1 < pour-out.txt
|
||||||
|
|
||||||
|
./endoh1 < fountain.txt
|
||||||
|
</code></pre>
|
||||||
|
|
||||||
|
<h3>Selected Judges Remarks:</h3>
|
||||||
|
|
||||||
|
<p>Let’s play Jeopardy!</p>
|
||||||
|
|
||||||
|
<ul>
|
||||||
|
<li>A: An obfuscated program that deals with complex numbers and produces animated ASCII graphics.</li>
|
||||||
|
<li>Q: What is a Mandelbrot simulator?</li>
|
||||||
|
</ul>
|
||||||
|
|
||||||
|
|
||||||
|
<p>Bzzzt!</p>
|
||||||
|
|
||||||
|
<p>Such heavily squeezed fluid simulation (this is parsed uniquely
|
||||||
|
as fluids are not squeezable) has a few quirks that the judges were
|
||||||
|
happy to experiment with.</p>
|
||||||
|
|
||||||
|
<p>One configuration file was inspired by an <a href="http://whatif.xkcd.com/6/">XKCD what if? entry</a>.</p>
|
||||||
|
|
||||||
|
<h2>Author’s comments:</h2>
|
||||||
|
|
||||||
|
<h3>Synopsis</h3>
|
||||||
|
|
||||||
|
<p><strong>DO NOT FORGET “-DG=1 -DP=4 -DV=8”</strong> and make your terminal window larger
|
||||||
|
than 80 x 25.</p>
|
||||||
|
|
||||||
|
<pre><code>gcc endoh1.c -DG=1 -DP=4 -DV=8 -D_BSD_SOURCE -o endoh1 -lm
|
||||||
|
./endoh1 < endoh1.c
|
||||||
|
./endoh1 < logo.txt
|
||||||
|
./endoh1 < column.txt
|
||||||
|
./endoh1 < pour-out.txt
|
||||||
|
./endoh1 < tanada.txt
|
||||||
|
</code></pre>
|
||||||
|
|
||||||
|
<h3>What it is</h3>
|
||||||
|
|
||||||
|
<pre><code>,___. ,. ,. ,. ,___. ,. ,. ,.
|
||||||
|
|/--' || `' || |/--' `' || |\_.
|
||||||
|
|\__. || ,. ,. ,. ,__/| |\__. ,. ,____. ,. ,. || ,_. |/-' ,_. ,__.
|
||||||
|
|/--' || || || || |/-\| `--\| || |/\/\| || || || ,/-\. || ,/-\. |/-\.
|
||||||
|
|| || `\_/| || |\_/| ,__/| || |||||| `\_/| || `\_/\.`\_. `\_/' || `'
|
||||||
|
`' `' `--' `' `---' `---' `' `'`'`' `--' `' `-'`' `-' `-' `'
|
||||||
|
|
||||||
|
|
||||||
|
,.,. ,.,.
|
||||||
|
,/\/\. ,. ,. ,. ,/\/\. ,. ,. ,__.
|
||||||
|
|||#/' || `' ,_.|| |||#/' `',_.,__. || ||\\. ,.
|
||||||
|
|||#\. || ,. ,. ,.,/#||| |\//\. ,.|#||##| ,. ,. || ,.,. |\/-' ,.,. ,.|\.
|
||||||
|
|\/--' ||,/\.|| |||#/\/| `\#||| |||#||/\|,/\.|| ||,/'`\.|#| ,/'`\.|\/-\.
|
||||||
|
`\| ||`\#||| |||#||\| ,//\/| ||`\|||||`\#||| ||`\.,/\/\|,.`\.,/'`\| `'
|
||||||
|
`' `' `-'`' `'`-'`-' `-'`-' `' `'`'`' `-'`' `' `'`--'`'`' `'`' `'
|
||||||
|
|
||||||
|
|
||||||
|
,_.,_. ,. ,. ,. ,_.,_. ,. ,. ,.
|
||||||
|
|#||#| || `' || |#||#| `' || ||,_.
|
||||||
|
||\/#| ||,. ,. ,.,_.,/| |\||#| ,.,_.,__.,. ,. || ,.,. |||#| ,.,. ,.,_.
|
||||||
|
|||##| |||| || |||#||#| |#||#| |||#||##||| || ||,/||\.||`-',/||\.|||#\.
|
||||||
|
||`--' ||`\_.|| |||\||#| |#||#| ||||'||\|`\_.|| ||`\||#|`\.,.`\||/'||`--'
|
||||||
|
`' `' |#||| `'|#||#| |#||#| `'`' `'`' |#||| `' |||/' |||| |||| `'
|
||||||
|
`-'`' `-'`-' `-'`-' `-'`' `'`' `'`' `'`'
|
||||||
|
</code></pre>
|
||||||
|
|
||||||
|
<p>This program is a fluid simulator using “Smoothed-particle hydrodynamics (SPH)”
|
||||||
|
method.</p>
|
||||||
|
|
||||||
|
<p><a href="http://en.wikipedia.org/wiki/Smoothed-particle_hydrodynamics">http://en.wikipedia.org/wiki/Smoothed-particle_hydrodynamics</a></p>
|
||||||
|
|
||||||
|
<p>The SPH particles represent the fluid flow. Particles have information about
|
||||||
|
the position, density, and velocity. In every simulation step, they are
|
||||||
|
changed by pressure force, viscosity force, and external force (i.e., gravity).</p>
|
||||||
|
|
||||||
|
<p>This program reads a text from standard input, and uses it as an initial
|
||||||
|
configuration of the particles. The character <code>#</code> represents “wall particle” (a
|
||||||
|
particle with fixed position), and any other non-space characters represent
|
||||||
|
free particles.</p>
|
||||||
|
|
||||||
|
<p>The compilation options <code>-DG=1 -DP=4 -DV=8</code> represent, respectively, the factor
|
||||||
|
of gravity, pressure, and viscosity. By changing their values, you can see
|
||||||
|
different fluid behavior.</p>
|
||||||
|
|
||||||
|
<p>“Marching square”-like algorithm is used to render the particles.</p>
|
||||||
|
|
||||||
|
<p><a href="http://en.wikipedia.org/wiki/Marching_squares">http://en.wikipedia.org/wiki/Marching_squares</a></p>
|
||||||
|
|
||||||
|
<h3>Portability</h3>
|
||||||
|
|
||||||
|
<p>The program requires a C99 compiler; it uses <code>complex</code> types and one-line
|
||||||
|
comments. It also uses <code>usleep</code>, which may require <code>-D_BSD_SOURCE</code> or somewhat
|
||||||
|
to build with no warning. Under these conditions, it should be portable.
|
||||||
|
At least, recent compilers with <code>-std=c99 -Wall -W -Wextra -pedantic</code> says
|
||||||
|
nothing.</p>
|
||||||
|
|
||||||
|
<pre><code>gcc -DG=1 -DP=4 -DV=8 -D_BSD_SOURCE -std=c99 -Wall -W -Wextra -pedantic endoh1.c
|
||||||
|
clang -DG=1 -DP=4 -DV=8 -D_BSD_SOURCE -std=c99 -Wall -W -Wextra -pedantic endoh1.c
|
||||||
|
</code></pre>
|
||||||
|
|
||||||
|
<p>I expect it to work in any Unix-like environment. VTxxx/ANSI sequences are
|
||||||
|
used to clear screen and move cursor to home.</p>
|
||||||
|
|
||||||
|
<p>I’ve tested with gcc-4.6.3 and clang-3.0 on Linux (Ubuntu 12.04)
|
||||||
|
and gcc-4.5.3 and clang-3.1 on Cygwin. On Cygwin, gcc and clang complain about
|
||||||
|
a usage of <code>I</code> (complex’s imaginary unit), but I bet this is cygwin’s issue;
|
||||||
|
it is surely a C99 feature.</p>
|
||||||
|
|
||||||
|
<h3>Obfuscation w/ Spoiler</h3>
|
||||||
|
|
||||||
|
<p>First of all, the source code itself serves as an initial configuration.
|
||||||
|
Preprocessing directives (such as <code>#include</code>)’s <code>#</code> serve as walls.</p>
|
||||||
|
|
||||||
|
<p>This program uses <code>double complex</code> to represent any 2D vector. But, note that
|
||||||
|
x-axis and y-axis is swapped (real axis = y-axis, imaginary axis = x-axis).
|
||||||
|
The purpose of swapping is not only obfuscation, but also short coding: for
|
||||||
|
example, to add gravity to total force, <code>force += G</code> suffices, rather than
|
||||||
|
<code>force += G*I</code>.
|
||||||
|
(Incidentally, you can exert horizontal gravity by using, such as, <code>-DG=I</code>)</p>
|
||||||
|
|
||||||
|
<p>Every five entries of <code>double complex a[]</code> contain information of one particle:
|
||||||
|
position, wall-flag, density, force, and velocity, in turn.</p>
|
||||||
|
|
||||||
|
<p>You can use <code>G</code>, <code>P</code>, and <code>V</code> as a guide to find the calculation code of
|
||||||
|
gravity, pressure, and viscosity forces.</p>
|
||||||
|
|
||||||
|
<p>Though some assignments may look meaningless, it is actually meaningful; it
|
||||||
|
extracts “integer part of real part” from a complex value by assigning (and
|
||||||
|
casting) it to an integer-type variable.</p>
|
||||||
|
|
||||||
|
<h3>Notes about Additional Files</h3>
|
||||||
|
|
||||||
|
<p>“logo.txt” is a source of the logo in this remark file.</p>
|
||||||
|
|
||||||
|
<p>“column.txt” is a water column collapse, which is a popular demo of SPH.</p>
|
||||||
|
|
||||||
|
<p>“pour-out.txt” pours you a cup of tea.</p>
|
||||||
|
|
||||||
|
<p>“tanada.txt” simulates “Terrace farming”. (“Tanada” means a “terraced rice
|
||||||
|
fields” in Japanese.)</p>
|
||||||
|
|
||||||
|
<p>“clock.txt” is a “water” clock created by HAMANO Tsukasa.</p>
|
||||||
|
|
||||||
|
<p>Other *.txt files are due to the judges.</p>
|
||||||
|
|
||||||
|
<p>“endoh1_color.c” is a variant that shows the density by using terminal 256
|
||||||
|
colors.</p>
|
||||||
|
|
||||||
|
<h3>Acknowledgment</h3>
|
||||||
|
|
||||||
|
<p>I would like to thank my wife @hirekoke for her teaching me the SPH method.</p>
|
||||||
|
|
||||||
|
<p>The judges <strike>ordered</strike> suggested creating a color version
|
||||||
|
after the judgment.</p>
|
||||||
|
|
||||||
|
<p>The judges and HAMANO Tsukasa (The silver medalist at this IOCCC) kindly
|
||||||
|
provided many configuration files.</p>
|
||||||
|
|
||||||
|
<hr />
|
||||||
|
|
||||||
|
<!--
|
||||||
|
(c) Copyright 1984-2012, [Leo Broukhis, Simon Cooper, Landon Curt Noll][judges] - All rights reserved
|
||||||
|
This work is licensed under a [Creative Commons Attribution-ShareAlike 3.0 Unported License][cc].
|
||||||
|
|
||||||
|
[judges]: http://www.ioccc.org/judges.html
|
||||||
|
[cc]: http://creativecommons.org/licenses/by-sa/3.0/
|
||||||
|
-->
|
||||||
|
|
||||||
|
<TABLE><TR>
|
||||||
|
<TD><a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-sa/3.0/88x31.png" /></a></TD>
|
||||||
|
<TD><P>© Copyright 1984-2012,
|
||||||
|
<A HREF="/judges.html">Leo Broukhis, Simon Cooper, Landon Curt Noll</A>
|
||||||
|
- All rights reserved<BR>
|
||||||
|
This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/">Creative Commons Attribution-ShareAlike 3.0 Unported License</a>.</P></TD>
|
||||||
|
<TD> <!--<a href="http://validator.w3.org/check?uri=referer"><img src="http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01 Transitional" height="31" width="88"></a>--></TD>
|
||||||
|
</TR></TABLE>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
|
|
||||||
@ -0,0 +1,184 @@
|
|||||||
|
# Most complex ASCII fluid - Honorable mention
|
||||||
|
|
||||||
|
Yusuke Endoh
|
||||||
|
<mame@tsg.ne.jp>
|
||||||
|
|
||||||
|
|
||||||
|
## Judges' comments:
|
||||||
|
### To build:
|
||||||
|
|
||||||
|
make endoh1
|
||||||
|
|
||||||
|
### To run:
|
||||||
|
|
||||||
|
./endoh1 < configuration.txt
|
||||||
|
|
||||||
|
### Try:
|
||||||
|
|
||||||
|
./endoh1 < endoh1.c
|
||||||
|
|
||||||
|
./endoh1 < pour-out.txt
|
||||||
|
|
||||||
|
./endoh1 < fountain.txt
|
||||||
|
|
||||||
|
### Selected Judges Remarks:
|
||||||
|
|
||||||
|
Let's play Jeopardy!
|
||||||
|
|
||||||
|
* A: An obfuscated program that deals with complex numbers and produces animated ASCII graphics.
|
||||||
|
* Q: What is a Mandelbrot simulator?
|
||||||
|
|
||||||
|
Bzzzt!
|
||||||
|
|
||||||
|
Such heavily squeezed fluid simulation (this is parsed uniquely
|
||||||
|
as fluids are not squeezable) has a few quirks that the judges were
|
||||||
|
happy to experiment with.
|
||||||
|
|
||||||
|
One configuration file was inspired by an [XKCD what if? entry](http://whatif.xkcd.com/6/).
|
||||||
|
|
||||||
|
## Author's comments:
|
||||||
|
### Synopsis
|
||||||
|
|
||||||
|
**DO NOT FORGET "-DG=1 -DP=4 -DV=8"** and make your terminal window larger
|
||||||
|
than 80 x 25.
|
||||||
|
|
||||||
|
gcc endoh1.c -DG=1 -DP=4 -DV=8 -D_BSD_SOURCE -o endoh1 -lm
|
||||||
|
./endoh1 < endoh1.c
|
||||||
|
./endoh1 < logo.txt
|
||||||
|
./endoh1 < column.txt
|
||||||
|
./endoh1 < pour-out.txt
|
||||||
|
./endoh1 < tanada.txt
|
||||||
|
|
||||||
|
|
||||||
|
### What it is
|
||||||
|
|
||||||
|
,___. ,. ,. ,. ,___. ,. ,. ,.
|
||||||
|
|/--' || `' || |/--' `' || |\_.
|
||||||
|
|\__. || ,. ,. ,. ,__/| |\__. ,. ,____. ,. ,. || ,_. |/-' ,_. ,__.
|
||||||
|
|/--' || || || || |/-\| `--\| || |/\/\| || || || ,/-\. || ,/-\. |/-\.
|
||||||
|
|| || `\_/| || |\_/| ,__/| || |||||| `\_/| || `\_/\.`\_. `\_/' || `'
|
||||||
|
`' `' `--' `' `---' `---' `' `'`'`' `--' `' `-'`' `-' `-' `'
|
||||||
|
|
||||||
|
|
||||||
|
,.,. ,.,.
|
||||||
|
,/\/\. ,. ,. ,. ,/\/\. ,. ,. ,__.
|
||||||
|
|||#/' || `' ,_.|| |||#/' `',_.,__. || ||\\. ,.
|
||||||
|
|||#\. || ,. ,. ,.,/#||| |\//\. ,.|#||##| ,. ,. || ,.,. |\/-' ,.,. ,.|\.
|
||||||
|
|\/--' ||,/\.|| |||#/\/| `\#||| |||#||/\|,/\.|| ||,/'`\.|#| ,/'`\.|\/-\.
|
||||||
|
`\| ||`\#||| |||#||\| ,//\/| ||`\|||||`\#||| ||`\.,/\/\|,.`\.,/'`\| `'
|
||||||
|
`' `' `-'`' `'`-'`-' `-'`-' `' `'`'`' `-'`' `' `'`--'`'`' `'`' `'
|
||||||
|
|
||||||
|
|
||||||
|
,_.,_. ,. ,. ,. ,_.,_. ,. ,. ,.
|
||||||
|
|#||#| || `' || |#||#| `' || ||,_.
|
||||||
|
||\/#| ||,. ,. ,.,_.,/| |\||#| ,.,_.,__.,. ,. || ,.,. |||#| ,.,. ,.,_.
|
||||||
|
|||##| |||| || |||#||#| |#||#| |||#||##||| || ||,/||\.||`-',/||\.|||#\.
|
||||||
|
||`--' ||`\_.|| |||\||#| |#||#| ||||'||\|`\_.|| ||`\||#|`\.,.`\||/'||`--'
|
||||||
|
`' `' |#||| `'|#||#| |#||#| `'`' `'`' |#||| `' |||/' |||| |||| `'
|
||||||
|
`-'`' `-'`-' `-'`-' `-'`' `'`' `'`' `'`'
|
||||||
|
|
||||||
|
|
||||||
|
This program is a fluid simulator using "Smoothed-particle hydrodynamics (SPH)"
|
||||||
|
method.
|
||||||
|
|
||||||
|
<http://en.wikipedia.org/wiki/Smoothed-particle_hydrodynamics>
|
||||||
|
|
||||||
|
The SPH particles represent the fluid flow. Particles have information about
|
||||||
|
the position, density, and velocity. In every simulation step, they are
|
||||||
|
changed by pressure force, viscosity force, and external force (i.e., gravity).
|
||||||
|
|
||||||
|
This program reads a text from standard input, and uses it as an initial
|
||||||
|
configuration of the particles. The character `#` represents "wall particle" (a
|
||||||
|
particle with fixed position), and any other non-space characters represent
|
||||||
|
free particles.
|
||||||
|
|
||||||
|
The compilation options `-DG=1 -DP=4 -DV=8` represent, respectively, the factor
|
||||||
|
of gravity, pressure, and viscosity. By changing their values, you can see
|
||||||
|
different fluid behavior.
|
||||||
|
|
||||||
|
"Marching square"-like algorithm is used to render the particles.
|
||||||
|
|
||||||
|
<http://en.wikipedia.org/wiki/Marching_squares>
|
||||||
|
|
||||||
|
|
||||||
|
### Portability
|
||||||
|
|
||||||
|
The program requires a C99 compiler; it uses `complex` types and one-line
|
||||||
|
comments. It also uses `usleep`, which may require `-D_BSD_SOURCE` or somewhat
|
||||||
|
to build with no warning. Under these conditions, it should be portable.
|
||||||
|
At least, recent compilers with `-std=c99 -Wall -W -Wextra -pedantic` says
|
||||||
|
nothing.
|
||||||
|
|
||||||
|
gcc -DG=1 -DP=4 -DV=8 -D_BSD_SOURCE -std=c99 -Wall -W -Wextra -pedantic endoh1.c
|
||||||
|
clang -DG=1 -DP=4 -DV=8 -D_BSD_SOURCE -std=c99 -Wall -W -Wextra -pedantic endoh1.c
|
||||||
|
|
||||||
|
I expect it to work in any Unix-like environment. VTxxx/ANSI sequences are
|
||||||
|
used to clear screen and move cursor to home.
|
||||||
|
|
||||||
|
I've tested with gcc-4.6.3 and clang-3.0 on Linux (Ubuntu 12.04)
|
||||||
|
and gcc-4.5.3 and clang-3.1 on Cygwin. On Cygwin, gcc and clang complain about
|
||||||
|
a usage of `I` (complex's imaginary unit), but I bet this is cygwin's issue;
|
||||||
|
it is surely a C99 feature.
|
||||||
|
|
||||||
|
|
||||||
|
### Obfuscation w/ Spoiler
|
||||||
|
|
||||||
|
First of all, the source code itself serves as an initial configuration.
|
||||||
|
Preprocessing directives (such as `#include`)'s `#` serve as walls.
|
||||||
|
|
||||||
|
This program uses `double complex` to represent any 2D vector. But, note that
|
||||||
|
x-axis and y-axis is swapped (real axis = y-axis, imaginary axis = x-axis).
|
||||||
|
The purpose of swapping is not only obfuscation, but also short coding: for
|
||||||
|
example, to add gravity to total force, `force += G` suffices, rather than
|
||||||
|
`force += G*I`.
|
||||||
|
(Incidentally, you can exert horizontal gravity by using, such as, `-DG=I`)
|
||||||
|
|
||||||
|
Every five entries of `double complex a[]` contain information of one particle:
|
||||||
|
position, wall-flag, density, force, and velocity, in turn.
|
||||||
|
|
||||||
|
You can use `G`, `P`, and `V` as a guide to find the calculation code of
|
||||||
|
gravity, pressure, and viscosity forces.
|
||||||
|
|
||||||
|
Though some assignments may look meaningless, it is actually meaningful; it
|
||||||
|
extracts "integer part of real part" from a complex value by assigning (and
|
||||||
|
casting) it to an integer-type variable.
|
||||||
|
|
||||||
|
|
||||||
|
### Notes about Additional Files
|
||||||
|
|
||||||
|
"logo.txt" is a source of the logo in this remark file.
|
||||||
|
|
||||||
|
"column.txt" is a water column collapse, which is a popular demo of SPH.
|
||||||
|
|
||||||
|
"pour-out.txt" pours you a cup of tea.
|
||||||
|
|
||||||
|
"tanada.txt" simulates "Terrace farming". ("Tanada" means a "terraced rice
|
||||||
|
fields" in Japanese.)
|
||||||
|
|
||||||
|
"clock.txt" is a "water" clock created by HAMANO Tsukasa.
|
||||||
|
|
||||||
|
Other \*.txt files are due to the judges.
|
||||||
|
|
||||||
|
|
||||||
|
"endoh1\_color.c" is a variant that shows the density by using terminal 256
|
||||||
|
colors.
|
||||||
|
|
||||||
|
|
||||||
|
### Acknowledgment
|
||||||
|
|
||||||
|
I would like to thank my wife @hirekoke for her teaching me the SPH method.
|
||||||
|
|
||||||
|
The judges <strike>ordered</strike> suggested creating a color version
|
||||||
|
after the judgment.
|
||||||
|
|
||||||
|
The judges and HAMANO Tsukasa (The silver medalist at this IOCCC) kindly
|
||||||
|
provided many configuration files.
|
||||||
|
|
||||||
|
--------------------------------------------------------------------------------
|
||||||
|
<!--
|
||||||
|
(c) Copyright 1984-2012, [Leo Broukhis, Simon Cooper, Landon Curt Noll][judges] - All rights reserved
|
||||||
|
This work is licensed under a [Creative Commons Attribution-ShareAlike 3.0 Unported License][cc].
|
||||||
|
|
||||||
|
[judges]: http://www.ioccc.org/judges.html
|
||||||
|
[cc]: http://creativecommons.org/licenses/by-sa/3.0/
|
||||||
|
-->
|
||||||
@ -0,0 +1,23 @@
|
|||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
# #
|
||||||
|
# #
|
||||||
|
# #
|
||||||
|
# @ #
|
||||||
|
###############################################################################
|
||||||
@ -0,0 +1,19 @@
|
|||||||
|
|
||||||
|
@@@@ @ @ @ @@@@ @ @ @
|
||||||
|
@ @ @ @ @ @@@
|
||||||
|
@@@@ @ @ @ @ @@@@ @@@@ @ @@@@@ @ @ @ @@ @ @@ @@@
|
||||||
|
@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @
|
||||||
|
@ @ @@@ @ @@@@ @@@@ @ @ @ @ @@@ @ @@ @ @@ @@ @
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
# #
|
||||||
|
##### #####
|
||||||
|
###### ######
|
||||||
|
####### #######
|
||||||
|
######## ########
|
||||||
|
######### #########
|
||||||
|
########## ##########
|
||||||
|
## ##
|
||||||
@ -0,0 +1,19 @@
|
|||||||
|
|
||||||
|
### . . . . . . . . . . . ###
|
||||||
|
###.......................###
|
||||||
|
### . . . . . . . . . . . ###
|
||||||
|
###.......................###
|
||||||
|
### . . . . . . . . . . . ###
|
||||||
|
###.......................###
|
||||||
|
### . . . . . . . . . . . ###
|
||||||
|
###.......................###
|
||||||
|
### . . . . . . . . . . . ###
|
||||||
|
###.......................###
|
||||||
|
### . . . . . . . . . . . ###
|
||||||
|
###.......................##
|
||||||
|
### . . . . . . . . . . . ##
|
||||||
|
###....................... ###
|
||||||
|
################################# ## ##
|
||||||
|
############################### ## ##
|
||||||
|
## ##
|
||||||
|
###########
|
||||||
@ -0,0 +1,19 @@
|
|||||||
|
|
||||||
|
|
||||||
|
##
|
||||||
|
##. . . . . . . .
|
||||||
|
##..................
|
||||||
|
##. . . . . . . . . . ..
|
||||||
|
##.......................
|
||||||
|
##. . . . . . . . . . . ..
|
||||||
|
##........................##
|
||||||
|
##. . . . . . . . . . . ..##
|
||||||
|
############################ ##
|
||||||
|
## ##
|
||||||
|
############ ##
|
||||||
|
## ##
|
||||||
|
############ ##
|
||||||
|
## ##
|
||||||
|
############ ##
|
||||||
|
## ##
|
||||||
|
############
|
||||||
Loading…
Reference in New Issue