improved the randomizer logic

c/scoundrel.c

@@ -11,7 +11,9 @@
 #if defined(__CC65__) || defined(__Z80__)
 #define RETRO_IMPL
 #endif
-#ifndef RETRO_IMPL
+#ifdef RETRO_IMPL
+#include <conio.h>
+#else
 #include <time.h>
 #endif
 
@@ -21,21 +23,22 @@ char scanchar() {
   return c;
 }
 
-#ifdef RETRO_IMPL
 void randomize() {
-  int seed = 0, i, x, n = 6;
-  printf("\nType %d characters: ", n);
-  for(i=0;i<n;i++) {
-    x = (int) scanchar();
-    x ^= x << 7;
-    x ^= x >> 9;
-    x ^= x << 8;
-    seed ^= x;
-  }
-  srand(seed);
-  printf("\n");
-}
+#ifdef RETRO_IMPL
+  unsigned int entropy;
+#ifdef _randomize
+  _randomize();
 #endif
+  entropy = rand();
+  clrscr();
+  puts("Press any key to start...");
+  while(!kbhit()) entropy++;
+  cgetc();
+  srand(entropy);
+#else
+  srand(time(NULL));
+#endif
+}
 
 /* UI choices */
 #define CH1 0
@@ -346,11 +349,7 @@ int game() {
 /* Entry point */
 int main() {
   int score;
-#ifdef RETRO_IMPL
   randomize();
-#else
-  srand(time(NULL));
-#endif
   while(1) {
     print_msg("\n===============\nScoundrel--2026\n  by Luxferre\n===============\n  Good  luck!");
     score = game();