mirror of https://github.com/noisymime/Arduino.git
100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
#include "ArduinoRobot.h"
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#include "SquawkSD.h"
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#include "Fat16.h"
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SQUAWK_CONSTRUCT_ISR(SQUAWK_PWM_PIN5);
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void RobotControl::beginSpeaker(uint16_t frequency){
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SquawkSynth::begin(frequency);
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SquawkSynth::play();
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osc[2].vol = 0x7F;
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}
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void RobotControl::playNote(byte period, word length, char modifier) {
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// Modifier . makes note length 2/3
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if(modifier == '.') length = (length * 2) / 3;
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// Set up the play frequency, 352800 is [sample_rate]=44100 * [tuning]=8.0
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osc[2].freq = 352800 / period;
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// Delay, silence, delay
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delay(length);
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osc[2].freq = 0;
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delay(length);
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}
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void RobotControl::playMelody(char* script){
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// Find length of play string
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word length = strlen(script);
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// Set the default note time
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word time = 500;
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// Loop through each character in the play string
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for(int n = 0; n < length; n++) {
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// Fetch the character AFTER the current one - it may contain a modifier
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char modifier = script[n + 1];
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// Fetch the current character and branch accordingly
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switch(script[n]) {
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// Notes
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case 'c': playNote(214, time, modifier); break; // Play a C
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case 'C': playNote(202, time, modifier); break; // Play a C#
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case 'd': playNote(190, time, modifier); break; // Play a D
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case 'D': playNote(180, time, modifier); break; // Play a D#
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case 'e': playNote(170, time, modifier); break; // Play an F
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case 'f': playNote(160, time, modifier); break; // Play an F
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case 'F': playNote(151, time, modifier); break; // Play an F#
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case 'g': playNote(143, time, modifier); break; // Play a G
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case 'G': playNote(135, time, modifier); break; // Play a G#
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case 'a': playNote(127, time, modifier); break; // Play an A
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case 'A': playNote(120, time, modifier); break; // Play an A#
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case 'b': playNote(113, time, modifier); break; // Play a B
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// Delay
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case '-': playNote(0, time, modifier); break; // Play a quiet note
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// Note lengths
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case '1': time = 1000; break; // Full note
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case '2': time = 500; break; // Half note
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case '4': time = 250; break; // Quarter note
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case '8': time = 50; break; // Eigth note
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// Modifier '.' makes note length 2/3
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}
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}
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}
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void RobotControl::beep(int beep_length){
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char scr1[]="8F";
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char scr2[]="8Fe";
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char scr3[]="1F";
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switch (beep_length)
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{
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case BEEP_SIMPLE:
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default:
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playMelody(scr1);
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break;
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case BEEP_DOUBLE:
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playMelody(scr2);
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break;
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case BEEP_LONG:
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playMelody(scr3);
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}
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}
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void RobotControl::tempoWrite(int tempo){
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SquawkSynthSD::tempo(tempo);
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}
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void RobotControl::tuneWrite(float tune){
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SquawkSynthSD::tune(tune);
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}
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void RobotControl::playFile(char* filename){
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melody.open(filename,O_READ);
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SquawkSynthSD::play(melody);
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}
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void RobotControl::stopPlayFile(){
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melody.close();
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} |