diff options
Diffstat (limited to 'taipan.c')
| -rw-r--r-- | taipan.c | 65 |
1 files changed, 48 insertions, 17 deletions
@@ -165,15 +165,23 @@ void backspace() { if allow_all is true, allows '*', which is used for 'throw cargo' in sea_battle. */ unsigned char get_item(unsigned char allow_all) { - unsigned char i; + // unsigned char i; + for(;;) { + /* using a switch makes the code 12 bytes smaller here i = lcgetc(); - switch(i) { + if(i == 'o') return 0; + if(i == 's') return 1; + if(i == 'a') return 2; + if(i == 'g') return 3; + if(allow_all && i == '*') return 4; + */ + switch(lcgetc()) { case 'o': return 0; case 's': return 1; case 'a': return 2; case 'g': return 3; - case '*': if(allow_all) return 4; /* else fall thru */ + case '*': if(allow_all) return 4; // else fall thru default: break; } } @@ -292,9 +300,15 @@ void at_sea() { revers(1); cputs(location[0]); revers(0); + + /* this is 24 bytes smaller: */ + cputs(" "); + + /* than this: cputc(' '); cputc(' '); cputc(' '); + */ } /* this bit of code was duplicated a *bunch* of times, @@ -465,9 +479,12 @@ void cprintfancy_ctr(unsigned long num, unsigned char center) { mil = 0; if(center) { + cputs(" "); + /* cputc(' '); cputc(' '); cputc(' '); + */ tmp = 0; for(tmp = 100L; tmp < 1000000L; tmp *= 100L) if(num < tmp) cputc(' '); @@ -521,17 +538,22 @@ void fancy_numbers(unsigned long num, char *fancy) { } */ +void justify_int(unsigned int num) { + if(num < 1000) cputc(' '); + if(num < 100) cputc(' '); + if(num < 10) cputc(' '); + cprintulong(num); +} + void hide_cursor() { - gotoxy(0,23); cputc(' '); + gotoxy(0,23); + cputc(' '); } void update_guns() { revers(1); gotoxy(31, 1); - if(guns < 1000) cputc(' '); - if(guns < 100) cputc(' '); - if(guns < 10) cputc(' '); - cprintulong(guns); + justify_int(guns); revers(0); hide_cursor(); } @@ -540,11 +562,7 @@ void fight_stats(int ships, int orders) { cursor(0); gotoxy(0, 0); - if(ships < 1000) cputc(' '); - if(ships < 100) cputc(' '); - if(ships < 10) cputc(' '); - cprintulong(ships); - + justify_int(ships); cputs(" ship"); if(ships != 1) cputc('s'); cputs(" attacking, Taipan! \r\n"); @@ -651,6 +669,16 @@ int sea_battle(int id, int num_ships) { cputs("\r\n"); input = timed_getch(TMOUT_3S); + /* using a switch() instead of a chain of if/else + actually increases code size by 16 bytes! + switch(orders) { + case 'f': orders == 1; + case 'r': orders == 2; + case 't': orders == 3; + default: break; + } + */ + if(input == 'f') { orders = 1; } else if(input == 'r') { @@ -734,8 +762,7 @@ int sea_battle(int id, int num_ships) { plus_or_space(num_ships > num_on_screen); gotoxy(0, 16); - cputc('\r'); - cputc('\n'); + cputs("\r\n"); targeted = randi()%10; while(ships_on_screen[targeted] == 0) { @@ -1116,7 +1143,7 @@ int sea_battle(int id, int num_ships) { long get_num(void) { static char number[20]; unsigned char count = 0; - int input; + char input; cursor(1); cblank(1); @@ -1609,7 +1636,11 @@ void final_stats(void) // __asm__("jmp $e477"); /* exit(0) works in DOS 2.0s and 2.5, known to fail in Sparta */ - exit(0); + // exit(0); + + /* let's try doing it this way. I suspect it will have the same + results as exit(0)... */ + __asm__("jmp (10)"); // aka DOSVEC } void transfer(void) |