introduced librender

1 files changed, 102 insertions, 0 deletions

diff --git a/src/render/box.cc b/src/render/box.cc
new file mode 100644
index 0000000..8819a40
--- /dev/null
+++ b/src/render/box.cc
@@ -0,0 +1,102 @@
+/*
+   gl/box.cc
+   This file is part of the Osirion project and is distributed under 
+   the terms of the GNU General Public License version 2 
+*/
+
+// project headers
+#include "render/box.h"
+
+namespace render {
+
+using math::Vector3f;
+using math::Color;
+
+Box::Box(Vector3f const & tl, Vector3f const &br) : 
+	topleft(tl), bottomright(br)
+{
+	topcolor = Color::White();
+	bottomcolor= Color::White() * 0.7f;
+}
+
+Box::Box(const Box & other)
+{
+	(*this) = other;
+}
+
+Box& Box::operator=(const Box &other)
+{
+	bottomcolor = other.bottomcolor;
+	topcolor = other.topcolor;
+
+	topleft = other.topleft;
+	bottomright = other.bottomright;
+	return (*this);
+}
+
+void Box::draw()
+{
+	using namespace gl;
+
+	Vector3f v0(topleft.x, bottomright.y, bottomright.z);
+	Vector3f v1(topleft.x,  topleft.y, bottomright.z);
+	Vector3f v2(topleft.x,  topleft.y,  topleft.z);
+	Vector3f v3(topleft.x, bottomright.y,  topleft.z);
+
+	Vector3f v4(bottomright.x, bottomright.y, bottomright.z);
+	Vector3f v5(bottomright.x,  topleft.y, bottomright.z);
+	Vector3f v6(bottomright.x,  topleft.y,  topleft.z);
+	Vector3f v7(bottomright.x, bottomright.y,  topleft.z);
+
+	begin(Quads);
+
+	// top
+	color(topcolor);	
+	vertex(v2);
+	vertex(v1);
+        vertex(v5);
+	vertex(v6);
+	
+	// sides
+	color(bottomcolor);
+	vertex(v0);
+	color(topcolor);
+    	vertex(v1);
+        vertex(v2);
+	color(bottomcolor);
+        vertex(v3);
+
+        vertex(v3);
+	color(topcolor);
+    	vertex(v2);
+        vertex(v6);
+	color(bottomcolor);
+        vertex(v7);
+
+	vertex(v4);
+	color(topcolor);
+    	vertex(v5);
+        vertex(v1);
+	color(bottomcolor);
+        vertex(v0);
+
+	vertex(v7);
+	color(topcolor);
+    	vertex(v6);
+        vertex(v5);
+	color(bottomcolor);
+        vertex(v4);
+
+	// bottom
+	color(bottomcolor);	
+	vertex(v4);
+	vertex(v0);
+        vertex(v3);
+	vertex(v7);
+
+	end();
+
+}
+
+}
+