diff options
| -rw-r--r-- | snake.c | 26 |
1 files changed, 13 insertions, 13 deletions
@@ -14,9 +14,8 @@ #define UNUSED(x) (void)(x) /*** GLOBAL VARIABLES ***/ -volatile sig_atomic_t INT_CTRL_C = 0; /* flag for ctrl-c interrupt */ -int SCORE = 0; - +volatile sig_atomic_t intCtrlC = 0; /* flag for ctrl-c interrupt */ +int score = 0; int boardSize = 15; int updateInterval = 300000000L; @@ -29,27 +28,28 @@ void interrupt_handler(int sig); /* passed into signal(3) to handle ctrl-c inter /* unsafe functions like printf cannot be called in async interrupt handler */ void interrupt_handler(int sig) { UNUSED(sig); - INT_CTRL_C = 1; + intCtrlC = 1; } int main(int argc, char **argv) { /* parsing arguments */ - for (int i = 1; i < argc; i ++) { - if (strcmp("--version", argv[i]) == 0) { + if(argc > 1) { + if(strcmp("--version", argv[1]) == 0) { printf("snake3, version 1.0\n"); printf("Copyright 2023 Kai Stevenson\n"); printf("This software was licensed under the MIT license;\n"); printf("for more information, see the license file.\n"); return 0; - } else if (strcmp("--help", argv[i]) == 0) { + } + else if (strcmp("--help", argv[1]) == 0) { printf("usage: snake3 [--version] [--help]\n"); return 0; - } else { + } + else { printf("usage: snake3 [--version] [--help]\n"); return 1; } } - /* get terminal size */ struct winsize win; ioctl(fileno(stdout), TIOCGWINSZ, &win); @@ -87,12 +87,12 @@ int main(int argc, char **argv) { /* main game logic loop */ while(1) { /* handle ctrl-c interrupt */ - if (INT_CTRL_C) { + if(intCtrlC) { /* unhide cursor */ printf("\033[?25h"); /* kill the listener thread */ *cancellationToken = 1; - printf("Your score was %d. Press any key to exit\n", SCORE); + printf("Your score was %d. Press any key to exit\n", score); pthread_join(listenerID, NULL); free(cancellationToken); free((int*)lastInput); @@ -119,7 +119,7 @@ int main(int argc, char **argv) { int ateFood = 0; if((snakePositions.vectors[0].mx + lastMoveDir.mx == foodPos.mx) && (snakePositions.vectors[0].my + lastMoveDir.my == foodPos.my)) { ateFood = 1; - SCORE = SCORE + 1; + score += 1; if (updateInterval > 50000000) { updateInterval -= 20000000; } @@ -156,7 +156,7 @@ int main(int argc, char **argv) { } /* clear the last getch call from the listener */ *cancellationToken = 1; - printf("\n%sYou died. Score: %d. Press any key to exit%s\n", RED, SCORE, COLOR_RESET); + printf("\n%sYou died. Score: %d. Press any key to exit%s\n", RED, score, COLOR_RESET); printf("\033[?25h"); pthread_join(listenerID, NULL); free(cancellationToken); |