From 4fd882beeee2ccbcc5b097cde9ba0e32b1b99a3e Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Tue, 6 Jan 2026 08:14:12 +0900
Subject: feat: add examples/2048.c

---
 examples/2048.c    | 31 +++++++++++++++++++++++++++++++
 examples/README.md |  6 ++++++
 2 files changed, 37 insertions(+)
 create mode 100644 examples/2048.c
 create mode 100644 examples/README.md

(limited to 'examples')

diff --git a/examples/2048.c b/examples/2048.c
new file mode 100644
index 0000000..d4aee6d
--- /dev/null
+++ b/examples/2048.c
@@ -0,0 +1,31 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<termios.h>
+#include<time.h>
+#include<unistd.h>
+#define f printf
+#define n f("\r\n")
+#define r(_,n)for(int _=0;_<n;++_)
+#define t(_)(G+y*((x+S)%(S+1)+_*x)+(S+1-y)*i)
+
+int S ,N,E,C ,*L ,*T  ,F[128] ,*G =F;struct  termios O   ;void x()  {tcsetattr(0,TCSAFLU\
+SH,&O);f("\e[?25h\e"  "[?1049l\e[2J\e[H");}  void _(){   f("+");r(  i,8*S-1)f("-");f("+")
+;n;}void l(){f("|");  r(i,S){r(j,7)f(" ");f  ("|" ); }   n;}int m(  int x,int y,int d){C=
+0;r(i,S){E=0;L=0;r(j  ,S)if(*(T=t(j)))if(L   &&*T==*L)   {if(d){*L  *=2;T=0;}L=0;C=1;}else
+          {L=t(E);if  (d)*L=*T;   ++E;}for(  ;E<S;++E)   {T=t(E);C  |=*T;if(    d)*T=0;}}
+          return! C;  }void p()   {E=0;r(i,  S *S)if(!   G[i])++E;  if(E==0)    return;N=
+          rand()%E;r  (i,S*S)if   (!G[i]&&   --E==N)G[   i]=rand()  %8?2:4;}    int main(
+          int A,char  **a){srand  (time(0))  ;S=A> 1?(   *a[1]-48)  :4;if(S<    2 ||S>8){
+fputs("invalid board size" "\n"   ,stderr);  return 1;} atexit(x);  f ("\033[?1049h");tc\
+getattr(0,&O);struct  termios o   =O;o.      c_iflag &=~ ( BRKINT|  ICRNL| INPCK |ISTRIP|
+IXON);o.c_oflag&=~    OPOST;o.    c_cflag|=  CS8;o.c_lflag&=~(ECHO  |ICANON|IEXTEN|ISIG);
+o.c_cc[VMIN]=0;o.c_cc [VTIME]=1   ;tcsetattr (0,2,&o);f("\e[?25l")  ;p();p();while(32){f(
+"\e[2J\e[H");_();r(i  ,S){l();f   ("| ");r(  j,S){if(!*G)f("     "  " | "); else if (*G>=
+1024)f(" "            "%2dk  |"   " ", * G/              1024);else f("%4d  "   "| ",*G);
+++G;}n;l()            ;if(i<S-1   ){f("|");              r(j,S){r(  j,7)f("-"   );if(j<S-
+1) f("+");            }f( "|");   n;}}_();G              -= S*S;f(  "  h"",j"   ",k,l: "
+"move") ;r            (i,9 )f(    " " ); f(              "q: quit"  );fflush(   stdout );
+char k,e=0;while(     read(0,&k, 1)!=1);if(              k=='q')    goto q;if(k=='h')m(1,
+1,e=1);if(k=='j')m(-  1,S,e=1);if(k=='k')m(              1,S,e=1);  if(k  =='l')m(-1 ,1,e
+=1);if(e ){if(C)p();  if(m(1,1,0)&m (-1,1,0              )&m( 1,S,  0)&m(-1,S ,0))goto q;
+usleep(2048*8);}}q:;  } /*nsfisis*/
diff --git a/examples/README.md b/examples/README.md
new file mode 100644
index 0000000..e3e3d56
--- /dev/null
+++ b/examples/README.md
@@ -0,0 +1,6 @@
+# Sample programs that ducc can compile
+
+* hello.c: Hello World
+* fizzbuzz.c: Fizz Buzz
+* 2048.c: 2048 game in terminal
+    * https://github.com/nsfisis/2048.c
-- 
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