+/*
+This file is part of the graphics core library.
+
+Copyright (c) 2004, 2005 John Tsiombikas <nuclear@siggraph.org>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+/* motion controllers (part of the animation system)
+ *
+ * Author: John Tsiombikas 2004
+ */
+
+#ifndef _CONTROLLER_HPP_
+#define _CONTROLLER_HPP_
+
+#include "curves.hpp"
+#include "timeline.hpp"
+
+enum ControllerClass {CTRL_CURVE, CTRL_SIN, CTRL_COS, CTRL_LIN};
+
+enum {
+ CTRL_X = 1, // 0001
+ CTRL_Y = 2, // 0010
+ CTRL_Z = 4, // 0100
+ CTRL_XY = 3, // 0011
+ CTRL_YZ = 6, // 0110
+ CTRL_XZ = 5, // 0101
+ CTRL_XYZ = 7 // 0111
+};
+
+
+class MotionController {
+private:
+ Curve *curve;
+
+ // parameters for the sinusoidal controller
+ scalar_t freq, ampl, phase;
+ scalar_t (*freq_func)(scalar_t);
+ scalar_t (*ampl_func)(scalar_t);
+
+ // parameters for the linear controller
+ Vector3 orig, slope;
+
+ unsigned long start_time, end_time;
+
+ TimelineMode time_mode;
+ ControllerClass ctrl_type;
+ unsigned int axis_flags;
+
+public:
+ MotionController(ControllerClass ctype = CTRL_CURVE, TimelineMode mode = TIME_CLAMP);
+ MotionController(Curve *curve, unsigned long start, unsigned long end, TimelineMode mode = TIME_CLAMP);
+
+ void set_curve(Curve *curve);
+ void set_sin_func(scalar_t freq, scalar_t ampl, scalar_t phase = 0.0f);
+ void set_sin_func(scalar_t (*freq_func)(scalar_t), scalar_t(*ampl_func)(scalar_t));
+
+ void set_origin(scalar_t orig);
+ void set_origin(const Vector3 &orig_vec);
+ void set_slope(scalar_t slope);
+ void set_slope(const Vector3 &slope_vec);
+
+ void set_timing(unsigned long start, unsigned long end);
+ void set_timeline_mode(TimelineMode tmode);
+ void set_controller_type(ControllerClass ctype);
+ void set_control_axis(unsigned int axis_flags);
+
+ Curve *get_curve();
+ unsigned long get_start_time() const;
+ unsigned long get_end_time() const;
+ TimelineMode get_timeline_mode() const;
+ unsigned int get_control_axis() const;
+
+ Vector3 operator ()(unsigned long time) const;
+};
+
+
+#endif // _CONTROLLER_HPP_