Quick ability to set the countdown timer length.

main.cpp

@@ -4,16 +4,29 @@
 #include "sound.hpp"
 #include "textures.hpp"
 #include "shaders.hpp"
+#include <unistd.h>
 
-int main()
+int main(int argc, char *argv[])
 {
+  int opt = 0;
+  int timer_seconds = 60 * 60;
+
+  while((opt = getopt(argc, argv, "-t:")) != -1) {
+    switch(opt) {
+      case 't':
+        timer_seconds = atoi(optarg) * 60;
+        fmt::println("Setting count down timer to {} seconds.", timer_seconds);
+        break;
+    }
+  }
+
   sound::init();
   shaders::init();
   textures::init();
 
   GameEngine game{100};
   auto backend = SFMLBackend(game);
-  GUI gui(backend);
+  GUI gui(backend, timer_seconds);
   auto builder = Builder(gui, game);
 
   backend.startup();