--- a/src/core/random_func.hpp Sun Feb 03 01:34:21 2008 +0000
+++ b/src/core/random_func.hpp Sun Feb 03 20:34:26 2008 +0000
@@ -27,6 +27,35 @@
// Doesn't work with network yet.
// #define MERSENNE_TWISTER
+/**
+ * Structure to encapsulate the pseudo random number generators.
+ */
+struct Randomizer {
+ /** The state of the randomizer */
+ uint32 state[2];
+
+ /**
+ * Generate the next pseudo random number
+ * @return the random number
+ */
+ uint32 Next();
+
+ /**
+ * Generate the next pseudo random number scaled to max
+ * @param max the maximum value of the returned random number
+ * @return the random number
+ */
+ uint32 Next(uint16 max);
+
+ /**
+ * (Re)set the state of the random number generator.
+ * @param seed the new state
+ */
+ void SetSeed(uint32 seed);
+};
+extern Randomizer _random; ///< Random used in the game state calculations
+extern Randomizer _interactive_random; ///< Random used every else where is does not (directly) influence the game state
+
void SetRandomSeed(uint32 seed);
#ifdef RANDOM_DEBUG
#define Random() DoRandom(__LINE__, __FILE__)
@@ -34,12 +63,12 @@
#define RandomRange(max) DoRandomRange(max, __LINE__, __FILE__)
uint DoRandomRange(uint max, int line, const char *file);
#else
- uint32 Random();
- uint RandomRange(uint max);
+ static inline uint32 Random() { return _random.Next(); }
+ static inline uint32 RandomRange(uint16 max) { return _random.Next(max); }
#endif
-uint32 InteractiveRandom(); // Used for random sequences that are not the same on the other end of the multiplayer link
-uint InteractiveRandomRange(uint max);
+static inline uint32 InteractiveRandom() { return _interactive_random.Next(); }
+static inline uint32 InteractiveRandomRange(uint16 max) { return _interactive_random.Next(max); }
/**
* Checks if a given randomize-number is below a given probability.
@@ -100,6 +129,4 @@
return Chance16I(a, b, r);
}
-extern uint32 _random_seeds[2][2];
-
#endif /* RANDOM_FUNC_HPP */