Arduino 按鈕 code

const int N_BUTTONS = 7;
const int N_LIGHTS = 4;
const int button_pins[7] = {2,3,4,5,6,7,8};
const int light_pins[4] = {9, 10, 11, 12};

int last_button_state[7] = {0,0,0,0,0,0,0};
int physical_button_state[7] = {0,0,0,0,0,0,0};
int light_state[4] = {0, 0, 0, 0};
bool is_shooting = false;
unsigned long shooting_start = 10e6;

void read_physical_button_state(){
  for(int i=0; i<N_BUTTONS; i++){
    physical_button_state[i] = digitalRead(button_pins[i]);
  }
}

int detect_change(){
  // 0, 1, 2, 3 分別是每個燈泡個別亮暗
  // 4, 5 全開 / 全關
  // 6 計時模式

  read_physical_button_state();
  for(int i=0; i<N_BUTTONS; i++){
    if(last_button_state[i] != physical_button_state[i]){
      last_button_state[i] = physical_button_state[i];
      return i;
    }
  }
  return -1;
}

void setup(){
  Serial.begin(9600);

  for(int i=0; i<N_BUTTONS; i++){
    pinMode(button_pins[i], INPUT_PULLUP);
  }
  for(int i=0; i<N_LIGHTS; i++){
    pinMode(light_pins[i], OUTPUT);
  }

  read_physical_button_state();
  for(int i=0; i<N_BUTTONS; i++){
    last_button_state[i] = physical_button_state[i];
    // Serial.print(last_button_state[i]);
    // Serial.print(", ");
    // Serial.print(physical_button_state[i]);
    // Serial.print("\n");
  } 
}

void set_light_state(int pin, int state){
  digitalWrite(light_pins[pin], state);
  light_state[pin] = state;
}



void loop(){

  int change = detect_change();

  if(change >= 0){
    Serial.println(change);
  }

  if(change == -1){
    // no change
  }else if((change >= 0 && change <= 3) && !is_shooting){
    set_light_state(change, !light_state[change]);

  }else if(change == 4){
    // all open
    for(int i=0; i<N_LIGHTS; i++){
      set_light_state(i, HIGH);
    }
    is_shooting = false;
    shooting_start = 10e6;
  }
  else if(change == 5){
    // all close
    for(int i=0; i<N_LIGHTS; i++){
      set_light_state(i, LOW);
    }
    is_shooting = false;
    shooting_start = 10e6;
  }else if(change == 6){
    // shooting
    is_shooting = true;
    shooting_start = millis();
  }


  if(is_shooting){
    unsigned long now = millis();
    if(now - shooting_start < 3000){
      for(int i=0; i<N_LIGHTS; i++){
        set_light_state(i, LOW);
      }
    }else if(now - shooting_start < 6000){
      set_light_state(0, HIGH);
    }else if(now - shooting_start < 8000){
      set_light_state(0, LOW);
    }else if(now - shooting_start < 11000){
      set_light_state(0, HIGH);
    }else if(now - shooting_start < 13000){
      set_light_state(0, LOW);
    }else if(now - shooting_start < 16000){
      set_light_state(0, HIGH);
    }else if(now - shooting_start < 18000){
      set_light_state(0, LOW);
    }else if(now - shooting_start < 21000){
      set_light_state(0, HIGH);
    }else if(now - shooting_start < 23000){
      set_light_state(0, LOW);
    }else if(now - shooting_start < 26000){
      set_light_state(0, HIGH);
    }else if(now - shooting_start < 29000){
      set_light_state(0, LOW);
    }else{
      is_shooting = false;
      shooting_start = 10e6;
      set_light_state(0, LOW);
      set_light_state(1, HIGH);
      set_light_state(2, HIGH);
      set_light_state(3, HIGH);
    }
  }
  delay(300);
}