diff options
| -rw-r--r-- | snake.c | 20 |
1 files changed, 14 insertions, 6 deletions
@@ -3,29 +3,37 @@ #include <time.h> #include <pthread.h> #include <signal.h> //handling ctrl-c +#include <sys/ioctl.h> //terminal size #include "vector.h" #include "snake.h" #include "conio.h" volatile sig_atomic_t INT_CTRL_C = 0; -// unsafe functions like printf cannot be called in async interrupt handler +//unsafe functions like printf cannot be called in async interrupt handler void interrupt_handler(int sig) { INT_CTRL_C = 1; } -const int boardSize = 12; +int boardSize = 15; const int updateInterval = 300000000L; vectorp_t snakePositions; vector_t foodPos; vector_t lastMoveDir; int main(int argc, char **argv) { - printf("\e[?25l"); /* hide cursor */ - + //get terminal size + struct winsize win; + ioctl(fileno(stdout), TIOCGWINSZ, &win); + int width = (int)(win.ws_col); + int height = (int)(win.ws_row); + //multiplied by 2 to account for the fact that the board is twice as wide as high + int smallestAxis = width / 2 < height ? width / 2 : height; + boardSize = smallestAxis < boardSize ? smallestAxis : boardSize; + //hide cursor + printf("\e[?25l"); //make a new thread handling interrupts signal(SIGINT, interrupt_handler); - //init values snakePositions = init_vectorp(malloc(5 * sizeof(vector_t)), 5); snakePositions.vectors[0] = init_vector(5, 5); @@ -50,7 +58,7 @@ int main(int argc, char **argv) { pthread_create(&listenerID, NULL, get_dir_loop, &threadArg); //main game logic loop while(1) { - // handle ctrl-c interrupt + //handle ctrl-c interrupt if (INT_CTRL_C) { //unhide cursor printf("\e[?25h"); |