import from github

src/random.c

@@ -0,0 +1,33 @@
+#include "global.h"
+#include "random.h"
+
+EWRAM_DATA static u8 sUnknown = 0;
+EWRAM_DATA static u32 sRandCount = 0;
+
+// IWRAM common
+u32 gRngValue;
+u32 gRng2Value;
+
+u16 Random(void)
+{
+    gRngValue = ISO_RANDOMIZE1(gRngValue);
+    sRandCount++;
+    return gRngValue >> 16;
+}
+
+void SeedRng(u16 seed)
+{
+    gRngValue = seed;
+    sUnknown = 0;
+}
+
+void SeedRng2(u16 seed)
+{
+    gRng2Value = seed;
+}
+
+u16 Random2(void)
+{
+    gRng2Value = ISO_RANDOMIZE1(gRng2Value);
+    return gRng2Value >> 16;
+}