//
// Programmer:    Craig Stuart Sapp <craig@ccrma.stanford.edu>
// Creation Date: 26 December 1997
// Last Modified: 26 December 1997
// Filename:      note.cpp
// Syntax:        Visual C++ 5.0; Radio Baton Improv
//  
// Description: Plays a note when a baton stick is triggered
//	Both sticks behave the same.  Only one note at a time.
//	Unlike the note.cpp program, this program maps the
//	x-axis to pitch.  Whack is mapped to attack velocity.
//

#include "improv.h" 


/*----------------- beginning of improvization algorithms ---------------*/

int note1;       // the current note being played (keep track for turning off).
int note2;       // the current note being played on stick 2
int instrument;  // the current instrument being played on

/*--------------------- maintenance algorithms --------------------------*/

void description(void) {
   cout << endl;
   cout << "This program demonstrates how to play notes with baton triggers.\n";
   cout << "Only one pitch is played at a time.\n";
   cout << endl;
   cout << "The b14+ and b15+ buttons control the instrument being played.\n";
   cout << endl;
   cout << "Press the key \"X\" to turn on the MIDI out trace and see what\n";
   cout << "MIDI commands are being sent to the synthesizer.\n";
   cout << endl;
}

void initialization(void) { 
   note1 = note2 = 0;
   instrument = 0;
   program_change(CH_1, instrument);
}

void finishup(void) { }


/*-------------------- main loop algorithms -----------------------------*/

void mainloopalgorithms(void) { }


/*-------------------- triggered algorithms -----------------------------*/

void stick1trig(void) { 
   cout << "Stick 1 triggered:  xw1 = " << xw1 << " yw1 = " << yw1 
        << " wh1 = " << wh1 << endl;
   note_off(CH_1, note1);
   note1 = xw1;
   note_on(CH_1, note1, yw1);
}

void stick2trig(void) { 
   cout << "Stick 2 triggered: xw2 = " << xw2 << " yw2 = " << yw2 
        << " wh2 = " << wh2 << endl;
   note_off(CH_1, note2);
   note2 = xw2;
   note_on(CH_1, note2, yw2);
}

void b14plustrig(void) {
   instrument++;
   if (instrument > 127)  instrument = 127;
   program_change(CH_1, instrument);
   cout << "instrument = " << instrument << endl;
}

void b15plustrig(void) { 
   instrument--;
   if (instrument < 0)  instrument = 0;
   program_change(CH_1, instrument);
   cout << "instrument = " << instrument << endl;
}

void b14minusuptrig(void) { }

void b14minusdowntrig(void) { }

void b15minusuptrig(void) { }

void b15minusdowntrig(void) { }

void keyboardchar(int key) { charsynth(key); }


/*------------------ end improvization algorithms -----------------------*/


/*
   some functions and variables provided by the support program

   program_change(channel, instrument); -------- sets the timbre for a channel
   control_change(channel, controller, value); - sends a continuous controller 
   note_on(channel, keynumber, keyvelocity); --- plays a MIDI note
   note_off(channel, keynumber); --------------- same as note_on with 0 vel.
   raw_send(channel, command, data1, data2); --- send some midi command
   long t_time; -------------------------------- current time in milliseconds
   short pt1, pt2, pt3, pt4; ------------------- current pot (dial) positions
   short xt1,yt1,zt1,xt2,yt2,zt2; -------------- current stick positions
   short wh1, wh2; ----------------------------- whack strength of a trigger
   short xw1, yw1, xw2, yw2; ------------------- x and y positions at trigger
   short hit1, set1, hit2, set2; --------------- hit and set levels of sticks
   short whack1,whack2; ------------------------ registers set by stick triggers
   long  trigtime1, trigtime2; ----------------- times of stick triggers
*/