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Added help command and removed warnings

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This commit is contained in:
Tiehuis 2014-03-13 12:35:03 +13:00
parent 499a2525ef
commit 7b9ef39ac7
1 changed files with 18 additions and 4 deletions
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22
2048_no_curses.c
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@ -3,13 +3,14 @@
#include <stdio.h> /* for printf */ #include <stdio.h> /* for printf */
#include <stdlib.h> /* for malloc */ #include <stdlib.h> /* for malloc */
#include <termios.h>/* */ #include <termios.h>/* */
#include <time.h> /* for time */
#include <unistd.h> /* for getopts */ #include <unistd.h> /* for getopts */
// Repeat an expression y, x times */ // Repeat an expression y, x times */
#define ITER(x, y)\ #define ITER(x, expr)\
do {\ do {\
int i;\ int i;\
for (i = 0; i < x; i++){y;}\ for (i = 0; i < x; i++){ expr;}\
} while (0) } while (0)
/* Allocates a square pointer of array of arrays onto heap */ /* Allocates a square pointer of array of arrays onto heap */
@ -177,7 +178,8 @@ void rand_block()
void draw_grid() void draw_grid()
{ {
printf("SCORE: %d ", s); printf("SCORE: %d ", s);
printf(sl ? "(+%d)\n" : "\n", sl); if (sl) printf("(+%d)", sl);
printf("\n");
// alter this SZ + 1 to match abitrary grid size // alter this SZ + 1 to match abitrary grid size
ITER(SZ + 1, printf("-----")); ITER(SZ + 1, printf("-----"));
@ -218,7 +220,7 @@ int main(int argc, char **argv)
/* parse options */ /* parse options */
int c; int c;
while ((c = getopt(argc, argv, "s:b:")) != -1) { while ((c = getopt(argc, argv, "hs:b:")) != -1) {
switch (c) { switch (c) {
// different board sizes // different board sizes
case 's': case 's':
@ -230,6 +232,18 @@ int main(int argc, char **argv)
case 'b': case 'b':
n_blocks = atoi(optarg); n_blocks = atoi(optarg);
break; break;
case 'h':
printf("Controls:\n"
" hjkl, wasd Movement\n"
" q Quit\n"
"\n"
"Usage:\n"
" 2048 [options]\n"
"\n"
"Options:\n"
" -b <size> Set the grid border length\n"
" -s <rate> Set the block spawn rate\n");
exit(EXIT_SUCCESS);
} }
} }