029
06.08.2003, 15:33 Uhr
0xdeadbeef
Gott
(Operator)
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ich habs mal ein bisschen auseinandergepfriemelt und mit sprechenderen Variablennamen versehen. So sieht das Programm in Normal-C aus:
| C++: |
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/time.h>
#include <signal.h>
#define LEFT (-1)
#define RIGHT (1)
#define FWD (0)
#define MAX_TRACK_INDEX (21)
#define MAX_TREE_INDEX (4)
int track[] = {40, 40, 40, 40, 40, 40, 40, 40, 40, 40,
40, 40, 40, 40, 40, 40, 40, 40, 40, 40,
40, 40},
width [] = { 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8},
led [] = { 2, 3, 1, 0};
char delim [] = { '\\', '|', '/' },
*tree [] = {" |",
" |",
"%\\|/%",
" %%%",
""};
int tree_ix = MAX_TREE_INDEX,
tree_pos,
delim_ix = 1,
pos = 40,
oldpos = 40,
steer = FWD,
lauf,
speed = -1,
gear = 0,
sound_on = 0;
unsigned int score = 0;
void do_main (int sig) {
int n;
pos += steer;
printf ("\233;%uH\233L%c\233;%uH%c\233;%uH%s\23322;%uH@\23323;%uH \n",
track[0] - width[0], delim[delim_ix], track[0] + width[0],
delim[delim_ix], tree_pos, tree[tree_ix], pos, oldpos);
if (abs (pos - track[MAX_TRACK_INDEX]) >= width[MAX_TRACK_INDEX])
exit (0);
if (speed != gear*8) {
struct itimerval t = { 0, 0, 0, 0 };
speed += (speed < gear*8) ? 1 : -1;
t.it_interval.tv_usec = t.it_value.tv_usec = 72000 / (speed / 8 + 1);
setitimer (0, &t, 0);
if(sound_on) printf ("\e[10;%u]", speed + 24);
}
if(sound_on) putchar (7);
score += (9 - width[MAX_TRACK_INDEX]) * (speed / 8 + 1);
oldpos = pos;
for(lauf = MAX_TRACK_INDEX; lauf > 0; --lauf) {
width[lauf] = width[lauf - 1];
track[lauf] = track[lauf - 1];
}
if((n = rand ()) % 256 == 0 && width[0] > 1)
--width[0];
if (tree[tree_ix][0]) {
++tree_ix;
} else if(!(n&0x1f00)) {
while (abs ((tree_pos = rand () % 76) - track[0] + 2) - width[0] < 6);
++tree_pos;
tree_ix = 0;
}
if((n = rand () & 31) < 3)
(delim_ix = n);
if(delim_ix == 0 && --track[0] - width[0] <= 0){
++track[0];
++delim_ix;
} else if(delim_ix == 2 && ++track[0] + width[0] >= 80) {
--track[0];
--delim_ix;
}
signal (SIGALRM, do_main);
}
void do_on_exit () {
signal (SIGALRM, ((__sighandler_t) 1));
printf ("\e[0q\ecScore: %u\n", score);
system ("stty echo -cbreak");
}
int main (int argc, char *argv[]) {
int term;
char c;
atexit (do_on_exit);
if((argc < 2 || *argv[1] != 113)) {
term = *(int*) getenv("TERM");
if (term == (int) 0x756E696C || term == (int) 0x6C696E75)
sound_on = 1;
}
srand (getpid ());
system ("stty -echo cbreak");
printf("\e[%uq", led[gear]);
do_main (SIGALRM);
for(;;)
switch (c = getchar ()) {
case 'q':
return 0;
case '[':
case 'b':
case ',':
steer = LEFT;
continue;
case ' ':
case 'n':
case '.':
steer = FWD;
continue;
case ']':
case 'm':
case '/':
steer = RIGHT;
continue;
case '1':
case '2':
case '3':
case '4':
gear = c - '1';
printf ("\e[%uq", led[gear]);
continue;
}
}
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--
Einfachheit ist Voraussetzung für Zuverlässigkeit.
-- Edsger Wybe Dijkstra
Dieser Post wurde am 06.08.2003 um 15:33 Uhr von 0xdeadbeef editiert. |
