create random.h

3 files changed, 14 insertions, 1 deletions

diff --git a/include/random.h b/include/random.h
new file mode 100644
index 0000000..53cfdaf
--- /dev/null
+++ b/include/random.h
@@ -0,0 +1,11 @@
+#ifndef GUARD_RANDOM_H
+#define GUARD_RANDOM_H
+
+void SeedRng(u8 *seed);
+s32 Random(void);
+s32 RandomCapped(s32 cap);
+s32 RandomRange(s32 a, s32 b);
+s32 GetRngState(void);
+void SetRngState(s32 state);
+
+#endif // GUARD_RANDOM_H
diff --git a/src/main.c b/src/main.c
index 212822e..a74a9b6 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "random.h"
 
 extern char ewram_start[];
 
@@ -26,7 +27,6 @@ extern char unk_code[];
 extern void sub_800CDA8(int);
 extern void sub_800B540(void);
 extern void sub_800CF0C(void);
-extern void SeedRng(u8 *);
 extern void sub_8004D78(void);
 extern void nullsub_9(void);
 extern void nullsub_6(void);
diff --git a/src/random.c b/src/random.c
index 5db7394..cfc976c 100644
--- a/src/random.c
+++ b/src/random.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "random.h"
 
 extern s32 gRngState;
 
@@ -26,6 +27,7 @@ s32 RandomCapped(s32 cap)
     return (((Random() & 0xFFFF) * cap) >> 16) & 0xFFFF;
 }
 
+// Returns a random number between a and b.
 s32 RandomRange(s32 a, s32 b)
 {
     if (a == b)