X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=antikythera;a=blobdiff_plain;f=src%2Fgear.h;fp=src%2Fgear.h;h=12d9ba2fe1e4c71b34a4b9da3fb2b94284fb5048;hp=5fde21fefaa2efc0dad8ddc8ec683f65b3f987ab;hb=a88a9ac53952e1bb3768b147a043c19392e3d5d1;hpb=ae60a8cb1a30e204e7f60969fe6245e510cca0ff

diff --git a/src/gear.h b/src/gear.h
index 5fde21f..12d9ba2 100644
--- a/src/gear.h
+++ b/src/gear.h
@@ -2,6 +2,7 @@
 #define GEAR_H_
 
 #include <vector>
+#include <string>
 #include <gmath/gmath.h>
 #include "mesh.h"
 
@@ -44,9 +45,11 @@ private:
 	float contour(float u);
 
 public:
+	std::string name;
 	Vec3 pos, axis;	/* implicitly defines a plane eqn. */
 	float pdist;	/* derived: distance of plane from origin */
 
+	float init_angle;	/* initial starting angle */
 	float angle;	/* current angle of the gear */
 
 	int nteeth;		/* number of teeth */
@@ -63,6 +66,15 @@ public:
 	Gear();
 	~Gear();
 
+	// sets the supplied number of teeth, and calculates the radius
+	// of the gear, to achieve the required tooth pitch
+	void set_teeth(int nt, float tooth_pitch);
+
+	float get_rotation() const;
+
+	// returns the angle (in radians) from one tooth to the next
+	float get_angular_pitch() const;
+
 	void draw() const;
 
 	bool gen_mesh();