Follow-the-rythme game
The force sensor is attached on top of the piezo buzzer. During the game, the buzzer plays a portion of a (random) melody and the player has to reproduce the rythm of the melody she just heard by beating with a finger the FSR. Each time the user remembers correctly the rythm, one note is added and the melody is played again, until the player wins by remembering the whole melody.
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#include "pitches.h"
int success[] = {NOTE_C4, NOTE_E4, NOTE_G4, NOTE_C4};
int durationsSuccess[] = {8, 8, 8, 4};
int successLength=8;
int fail[] = {NOTE_C4, NOTE_B3, NOTE_AS3, NOTE_A3};
int durationsFail[] = {8, 8, 8, 4};
int failLength=4;
int challenge[10];
int durationsChallenge[10];
int challengeLength=10;
void setup() {
memset(challenge, 0, challengeLength);
memset(durationsChallenge, 0, challengeLength);
}
void loop() {
int z=0;
challenge[z]=random(131, 262);
durationsChallenge[z]=(random(0,2)+1)*2;
z++;
challenge[z]=random(131, 262);
durationsChallenge[z]=(random(0,2)+1)*2;
z++;
challenge[z]=random(131, 262);
durationsChallenge[z]=(random(0,2)+1)*2;
z++;
while(z<challengeLength){
playMelody(challenge, durationsChallenge, z);
if(readUserInput(durationsChallenge, z)){
challenge[z]=random(131, 262);
durationsChallenge[z]=(random(0,2)+1)*2;
z++;
}else{
playMelody(fail, durationsFail, failLength);
}
}
playMelody(success, durationsSuccess, successLength);
}
void playMelody(int *melody,int *durations, int length){
for (int thisNote = 0; thisNote < length; thisNote++) {
int noteDuration = 1000/durations[thisNote];
tone(9, melody[thisNote],noteDuration);
int pauseBetweenNotes = noteDuration*1.2;
delay(pauseBetweenNotes);
noTone(9);
}
}
boolean readUserInput(int* durationsChallenge, int length){
int thresholdDown=800;
int thresholdUp=1000;
int wait=100;
float tol=0.4;
float deltas[length];
while(analogRead(0)>thresholdDown){}
while(analogRead(0)<thresholdUp){}
unsigned long prev=millis();
for(int i=1; i<length; i++){
while(analogRead(0)>thresholdDown){}
while(analogRead(0)<thresholdUp){}
unsigned delta = millis()-prev;
prev = delta+prev;
deltas[i-1]=delta;
}
for(int i=0; i<length-1; i++){
if(abs( (((float) durationsChallenge[i]) - 1000/deltas[i])/((float) durationsChallenge[i]) ) > tol){
return false;
}
}
return true;
}
