virtualx-engine/drivers/chibi/cp_envelope.h
2016-01-01 11:50:53 -02:00

129 lines
3.8 KiB
C++

/*************************************************************************/
/* 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