add some temporary code for setting a random tetromino

src/main.c

@@ -10,6 +10,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 
 #include "errors.h"
 #include "game/game.h"
@@ -42,6 +43,9 @@ static void init(void) {
         return;
     }
 
+    // set a random seed using the system clock
+    srand(time(NULL));
+
     // initialize audio
     // AudioDevice* audio_device = audio_device_init(32000, AUDIO_S16, 1, 4096);
     // AudioData audio1 = audio_load_wav(audio_device, "FILE MANE");