X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=antikythera;a=blobdiff_plain;f=src%2Fgear.h;h=281e77f2d19e62800656c3f20e9d607ed13e6a9c;hp=5fde21fefaa2efc0dad8ddc8ec683f65b3f987ab;hb=84484521a697fe60f63bff077b9ba7475a45e54e;hpb=ae60a8cb1a30e204e7f60969fe6245e510cca0ff

diff --git a/src/gear.h b/src/gear.h
index 5fde21f..281e77f 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"
 
@@ -38,24 +39,31 @@ class Gear {
 private:
 	Mesh *mesh;
 
-	mutable Mat4 xform;
+	mutable Mat4 xform, dir_xform;
+	mutable bool xform_valid;
 	void calc_matrix() const;
 
 	float contour(float u);
 
 public:
-	Vec3 pos, axis;	/* implicitly defines a plane eqn. */
-	float pdist;	/* derived: distance of plane from origin */
 
-	float angle;	/* current angle of the gear */
+	/* TODO hide most of this shit, especially the stuff which invalidate
+	 * the transformation matrices
+	 */
+	std::string name;
+	Vec3 pos, axis;	// implicitly defines a plane eqn.
+	float pdist;	// derived: distance of plane from origin
 
-	int nteeth;		/* number of teeth */
+	float init_angle;	// initial starting angle
+	float angle;	// current angle of the gear
 
-	float radius;	/* total radius of the gear, including teeth */
-	float teeth_length;	/* how far teeth extend past the radius */
-	float thickness;	/* thickness of the gear along the Z axis */
+	int nteeth;		// number of teeth
 
-	float bevel;	/* bevel size */
+	float radius;	// total radius of the gear, including teeth
+	float teeth_length;	// how far teeth extend past the radius
+	float thickness;	// thickness of the gear along the Z axis
+
+	float bevel;	// bevel size
 
 	std::vector<GearPin> pins;
 	std::vector<GearSlot> slots;
@@ -63,6 +71,24 @@ 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);
+	void set_axis(const Vec3 &axis);
+	void set_position(const Vec3 &pos);
+	const Vec3 &get_position() const;
+	Vec3 get_global_position() const;	// taking parent gear into account
+
+	void set_angle(float angle);
+	float get_angle() const;
+
+	float get_vis_rotation() const;
+	const Mat4 &get_matrix() const;
+	const Mat4 &get_dir_matrix() const;
+
+	// returns the angle (in radians) from one tooth to the next
+	float get_angular_pitch() const;
+
 	void draw() const;
 
 	bool gen_mesh();