From 703cdbc35591c344d92d39fff5c6d54abc97b2fb Mon Sep 17 00:00:00 2001
From: blhough <benhuff322@gmail.com>
Date: Fri, 23 Dec 2016 18:35:14 -0800
Subject: [PATCH 1/4] Add Led class

---
 Led.cpp | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 Led.h   | 25 ++++++++++++++++++
 2 files changed, 105 insertions(+)
 create mode 100644 Led.cpp
 create mode 100644 Led.h

diff --git a/Led.cpp b/Led.cpp
new file mode 100644
index 0000000..6a5d1ca
--- /dev/null
+++ b/Led.cpp
@@ -0,0 +1,80 @@
+#include "Led.h"
+#include <assert.h>
+
+#define MIN_VALUE 0
+#define MAX_VALUE 255
+
+
+Led::Led( int RED_PIN, int GREEN_PIN, int BLUE_PIN ) :
+	RED_PIN{ RED_PIN },
+	GREEN_PIN{ GREEN_PIN },
+	BLUE_PIN{ BLUE_PIN }
+{
+	pinMode( RED_PIN, OUTPUT );
+	pinMode( GREEN_PIN, OUTPUT );
+	pinMode( BLUE_PIN, OUTPUT );
+}
+
+
+
+void Led::setRGB( int red, int green, int blue )
+{
+	assert( red >= MIN_VALUE && red <= MAX_VALUE );
+	assert( green >= MIN_VALUE && green <= MAX_VALUE );
+	assert( blue >= MIN_VALUE && blue <= MAX_VALUE );
+
+	analogWrite( RED_PIN, red );
+	analogWrite( GREEN_PIN, green );
+	analogWrite( BLUE_PIN, blue );
+}
+
+
+
+void Led::setRGB( float red, float green, float blue )
+{
+	setRGB( int( red * MAX_VALUE ), int( green * MAX_VALUE ), int( blue * MAX_VALUE ) );
+}
+
+
+
+void Led::setHSV( float hue, float sat, float val )
+{
+	float chroma = sat * val;
+	int h = int( hue * 6 );
+	float x = chroma * ( 1 - abs( h % 2 - 1 ) );
+
+	float r = 0, g = 0, b = 0;
+
+	switch( h )
+	{
+	case 0:
+		r = chroma;
+		g = x;
+		break;
+	case 1:
+		r = x;
+		g = chroma;
+		break;
+	case 2:
+		g = chroma;
+		b = x;
+		break;
+	case 3:
+		g = x;
+		b = chroma;
+		break;
+	case 4:
+		r = x;
+		b = chroma;
+		break;
+	case 5:
+		r = chroma;
+		b = x;
+		break;
+
+	default: assert( false ); break;
+	}
+
+	float m = val - chroma;
+	setRGB( r + m, g + m, b + m );
+}
diff --git a/Led.h b/Led.h
new file mode 100644
index 0000000..c6dd2e7
--- /dev/null
+++ b/Led.h
@@ -0,0 +1,25 @@
+#pragma once
+
+class Led
+{
+public:
+	
+	Led( int RED_PIN, int GREEN_PIN, int BLUE_PIN );
+
+	// red, green, blue in range [0,255]
+	void setRGB( int red, int green, int blue );
+
+	// red, green, blue in range [0,1]
+	void setRGB( float red, float green, float blue );
+
+	// hue, sat, val in range [0,1]
+	void setHSV( float hue, float sat, float val );
+
+private:
+	const int RED_PIN;
+	const int GREEN_PIN;
+	const int BLUE_PIN;
+};
+
+
+

From 83ed2bca4be25a7388ebb61a71e08b1188c8ad18 Mon Sep 17 00:00:00 2001
From: blhough <benhuff322@gmail.com>
Date: Fri, 23 Dec 2016 19:06:49 -0800
Subject: [PATCH 2/4] Add Led.h and Led.cpp to the project file

---
 line-follower.vcxproj | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/line-follower.vcxproj b/line-follower.vcxproj
index 7648ada..a06a42a 100644
--- a/line-follower.vcxproj
+++ b/line-follower.vcxproj
@@ -83,8 +83,12 @@
     </None>
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="Led.h" />
     <ClInclude Include="__vm\.line-follower.vsarduino.h" />
   </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="Led.cpp" />
+  </ItemGroup>
   <PropertyGroup>
     <DebuggerFlavor>VisualMicroDebugger</DebuggerFlavor>
   </PropertyGroup>

From 59d697367a89e4bf427b4b7bce475667347fb52b Mon Sep 17 00:00:00 2001
From: blhough <benhuff322@gmail.com>
Date: Sun, 25 Dec 2016 13:15:32 -0800
Subject: [PATCH 3/4] Add default constructor for Led class

---
 Led.cpp | 8 ++++++++
 Led.h   | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/Led.cpp b/Led.cpp
index 6a5d1ca..060bfc8 100644
--- a/Led.cpp
+++ b/Led.cpp
@@ -5,6 +5,14 @@
 #define MAX_VALUE 255
 
 
+Led::Led() :
+	RED_PIN{ 0 },
+	GREEN_PIN{ 0 },
+	BLUE_PIN{ 0 }
+{}
+
+
+
 Led::Led( int RED_PIN, int GREEN_PIN, int BLUE_PIN ) :
 	RED_PIN{ RED_PIN },
 	GREEN_PIN{ GREEN_PIN },
diff --git a/Led.h b/Led.h
index c6dd2e7..7af9280 100644
--- a/Led.h
+++ b/Led.h
@@ -4,6 +4,8 @@ class Led
 {
 public:
 	
+	Led();
+
 	Led( int RED_PIN, int GREEN_PIN, int BLUE_PIN );
 
 	// red, green, blue in range [0,255]

From b48f639dfbebe1b76769b3f2eabe489a54052d9e Mon Sep 17 00:00:00 2001
From: blhough <benhuff322@gmail.com>
Date: Sun, 25 Dec 2016 13:17:15 -0800
Subject: [PATCH 4/4] Initialize r, g, b with floats

---
 Led.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Led.cpp b/Led.cpp
index 060bfc8..6ae0c13 100644
--- a/Led.cpp
+++ b/Led.cpp
@@ -51,7 +51,7 @@ void Led::setHSV( float hue, float sat, float val )
 	int h = int( hue * 6 );
 	float x = chroma * ( 1 - abs( h % 2 - 1 ) );
 
-	float r = 0, g = 0, b = 0;
+	float r = 0.0f, g = 0.0f, b = 0.0f;
 
 	switch( h )
 	{