From 5f3976696ddf5d02ea7e6f805ce655e1f281e6ed Mon Sep 17 00:00:00 2001
From: "David A. Mellis" <d.mellis@arduino.cc>
Date: Sat, 6 Oct 2007 14:47:50 +0000
Subject: Moving hardware/targets to hardware/cores.

---
 cores/arduino/WRandom.cpp | 54 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 cores/arduino/WRandom.cpp

(limited to 'cores/arduino/WRandom.cpp')

diff --git a/cores/arduino/WRandom.cpp b/cores/arduino/WRandom.cpp
new file mode 100644
index 0000000..c45c306
--- /dev/null
+++ b/cores/arduino/WRandom.cpp
@@ -0,0 +1,54 @@
+/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */
+
+/*
+  Part of the Wiring project - http://wiring.org.co
+  Copyright (c) 2004-06 Hernando Barragan
+  Modified 13 August 2006, David A. Mellis for Arduino - http://www.arduino.cc/
+  
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+  
+  $Id$
+*/
+
+extern "C" {
+  #include "stdlib.h"
+}
+
+void randomSeed(unsigned int seed)
+{
+  if(seed != 0){
+    srand(seed);
+  }
+}
+
+long random(long howbig)
+{
+  long value;
+  if (howbig == 0){
+    return 0;
+  }
+  return rand() % howbig;
+}
+
+long random(long howsmall, long howbig)
+{
+  if(howsmall >= howbig){
+    return howsmall;
+  }
+  long diff = howbig - howsmall;
+  return random(diff) + howsmall;
+}
+
-- 
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