text: /*************************************************************************/
  /*  cp_envelope.h                                                        */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                    http://www.godotengine.org                         */
  /*************************************************************************/
  /* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
  /*                                                                       */
  /* Permission is hereby granted, free of charge, to any person obtaining */
  /* a copy of this software and associated documentation files (the       */
  /* "Software"), to deal in the Software without restriction, including   */
  /* without limitation the rights to use, copy, modify, merge, publish,   */
  /* distribute, sublicense, and/or sell copies of the Software, and to    */
  /* permit persons to whom the Software is furnished to do so, subject to */
  /* the following conditions:                                             */
  /*                                                                       */
  /* The above copyright notice and this permission notice shall be        */
  /* included in all copies or substantial portions of the Software.       */
  /*                                                                       */
  /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
  /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
  /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
  /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
  /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
  /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
  /*************************************************************************/
  
  #ifndef CP_ENVELOPE_H
  #define CP_ENVELOPE_H
  
  #include "cp_config.h"
  
  /**envelope?
    *@author Juan Linietsky
    */
  
  /******************************
   envelope.h
   ----------
  
  Proovides an envelope, and basic functions
  for it that can be used for both player
  and interface
  ********************************/
  
  
  class CPEnvelope {
  	enum {
  
  		MAX_POINTS=25
  	};
  
  	struct Point {
  	
  		uint16_t tick_offset;
  		int16_t value;
  	};
  
  	Point node[MAX_POINTS];
  	
  	int8_t node_count;
  
  	bool on;
  	bool carry;
  
  	bool loop_on;
  
  	uint8_t loop_begin_node;
  	uint8_t loop_end_node;
  
  	bool sustain_loop_on;
  	uint8_t sustain_loop_begin_node;
  	uint8_t sustain_loop_end_node;
  
  	
  	int8_t max_value;
  	int8_t min_value;
  	
  
  public:
  	enum {
  		
  		NO_POINT=-5000,
  	};
  	
  	void set_max(int8_t p_max) { max_value=p_max; }
  	int8_t get_max() { return max_value; }
  	void set_min(int8_t p_min) { min_value=p_min; }
  	int8_t get_min() { return min_value; }
  
  	uint8_t get_node_count();
  	const Point& get_node(int p_idx);
  
  	void set_position(int p_node,int p_x,int p_y);
  	int add_position(int p_x,int p_y,bool p_move_loops=true);
  	void del_position(int p_node);
  
  	void set_loop_enabled(bool p_enabled);
  	bool is_loop_enabled();
  	void set_loop_begin(int pos);
  	void set_loop_end(int pos);
  	uint8_t get_loop_begin();
  	uint8_t get_loop_end();
  
  	void set_sustain_loop_enabled(bool p_enabled);
  	bool is_sustain_loop_enabled();
  	void set_sustain_loop_begin(int pos);
  	void set_sustain_loop_end(int pos);
  	uint8_t get_sustain_loop_begin();
  	uint8_t get_sustain_loop_end();
  	
  	void set_enabled(bool p_enabled);
  	bool is_enabled();
  	
  	void set_carry_enabled(bool p_enabled);
  	bool is_carry_enabled();
  	
  	void reset();
  	int get_height_at_pos(int pos);
  	float get_interp_height_at_pos(float pos);
  	
  	
  	CPEnvelope();
  		
  };
  
  #endif
  