Version 3.0

STK/Noise.cpp

@@ -0,0 +1,52 @@
+/*******************************************/
+/*  Noise Generator Class,                 */
+/*  by Perry R. Cook, 1995-96              */ 
+/*  White noise as often as you like.      */
+/*******************************************/
+
+#include "Noise.h"    
+#ifdef __OS_NeXT_
+  #include <libc.h>
+#endif
+
+#if defined(__OS_Win_) /* For Windoze */
+  #define ONE_OVER_RANDLIMIT 0.00006103516
+#else /* This is for Linux, NeXT and SGI */
+  #define ONE_OVER_RANDLIMIT 0.00000000093132258
+#endif
+
+Noise :: Noise() : Object()
+{    
+  lastOutput = (MY_FLOAT) 0.0;
+}
+
+Noise :: ~Noise()
+{
+}
+
+MY_FLOAT Noise :: tick()
+{
+#if defined(__OS_Win_) /* For Windoze */
+  lastOutput = (MY_FLOAT) (rand() - 16383);
+#else /* This is for Linux, NeXT and SGI */
+  lastOutput = (MY_FLOAT) random() - 1073741823.0;
+#endif
+
+  lastOutput *= (MY_FLOAT) ONE_OVER_RANDLIMIT;
+  return lastOutput;
+}
+
+MY_FLOAT Noise :: lastOut()
+{
+  return lastOutput;
+}
+
+/************  Test Main  ************************/
+/*
+void main()
+{
+    long i;
+    Noise test;
+    for (i=0;i<20;i++) printf("%lf\n",test.tick());
+}
+*/