replace ncurses with termios

src/main.cpp

@@ -1,35 +1,45 @@
+// main.cpp
 #include "Aquarium.h"
-#include <cstdio>
-#include <cstdlib>
+#ifdef __OpenBSD__
 #include <unistd.h>
+#endif
+#include <chrono>
+#include <iostream>
+#include <thread>
 
-int main(int argc, char *argv[]) {
-  int opt;
-  while ((opt = getopt(argc, argv, "r:")) != -1) {
-    switch (opt) {
-    case 'r':
-      g_maxCells = std::atoi(optarg);
-      break;
-    default:
-      fprintf(stderr, "Usage: %s [-r max_cells]\n", argv[0]);
-      return 1;
-    }
-  }
-
+int main() {
+  // Get the singleton instance
   Aquarium &aquarium = Aquarium::getInstance();
-  aquarium.resize();
 
+#ifdef __OpenBSD__
+  // Most restrictive pledge - no file access needed!
+  if (pledge("stdio tty", NULL) == -1) {
+    perror("pledge");
+    return 1;
+  }
+#endif
+
+  // Initialize the aquarium display
+  aquarium.resize(); // Setup initial entities
+
+  // Main game loop
   while (true) {
-    aquarium.redraw();
-    int ch = getch();
-    if (ch != ERR) {
-      if (ch == 'q')
-        break;
-      if (ch == 'r')
-        aquarium.resize();
-      flushinp();
-      usleep(100000);
+    // Check for user input
+    int input = aquarium.checkInput();
+    if (input == 'q' || input == 'Q' || input == 27) { // ESC key
+      break;
     }
+
+    // Check if terminal was resized
+    if (aquarium.checkResize()) {
+      aquarium.resize();
+    }
+
+    // Redraw the aquarium
+    aquarium.redraw();
+
+    // Control frame rate (~20 FPS)
+    // std::this_thread::sleep_for(std::chrono::milliseconds(1));
   }
 
   return 0;