1 files changed, 61 insertions, 0 deletions
diff --git a/kue/sphere.cpp b/kue/sphere.cpp
new file mode 100644
index 00000000..321b8bad
--- /dev/null
+++ b/kue/sphere.cpp
@@ -0,0 +1,61 @@
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+#include <math.h>
+#include <tdeconfig.h>
+#include <tdeglobal.h>
+#include "sphere.h"
+
+const int SPHERE_DISPLAY_LIST = 2;
+double sphere_list_radius = 0.0;
+
+void sphere::draw(double x, double y, double r, double rot_x, double rot_y)
+{
+	glPushMatrix();
+	glTranslated(x, y, r);
+
+	// Rotate the balls the specified the amount
+	glRotated(rot_x, 0.0, 1.0, 0.0);
+	glRotated(rot_y, 1.0, 0.0, 0.0);
+
+	// Do we have this sphere cached?
+	if ((r == sphere_list_radius) && (glIsList(SPHERE_DISPLAY_LIST) == GL_TRUE))
+	{
+		// It was cached, call the list
+		glCallList(SPHERE_DISPLAY_LIST);
+	}
+	else
+	{
+		// Figure out the number of sphere divisons we need
+		TDEGlobal::config()->setGroup("Graphics");
+		int sphere_divisions = TDEGlobal::config()->readNumEntry("Sphere Divisions", 8);
+
+		// sphere_divisions < 3 causes OpenGL to draw nothing at all,
+		// so clamp to value to 3.
+		if (sphere_divisions < 3)
+			sphere_divisions = 3;
+
+		// Make the quadratic object
+		GLUquadricObj *quad = gluNewQuadric();
+
+		// We need normals for lighting to work
+		gluQuadricNormals(quad, GLU_SMOOTH);
+		// We also need texture points
+		gluQuadricTexture(quad, GL_TRUE);
+
+		// Create the display list
+		glNewList(SPHERE_DISPLAY_LIST, GL_COMPILE_AND_EXECUTE);
+		// Draw the sphere
+		gluSphere(quad, r, sphere_divisions, sphere_divisions);
+		// End the display list
+		glEndList();
+
+		// Update the cached radius
+		sphere_list_radius = r;
+
+		// Delete quadatric object
+		gluDeleteQuadric(quad);
+	}
+
+	glPopMatrix();
+}