Productivity Rocket

const int redpin = 0; 
const int greenpin = 1; 
const int bluepin = 2; 
const int sensorpin = 3; 

void setup() {
  pinMode(redpin, OUTPUT); 
  pinMode(greenpin, OUTPUT);
  pinMode(bluepin, OUTPUT); 

}

void loop() {

  int sensorvalue = analogRead(sensorpin);
  

  if ((0 <= sensorvalue) && (sensorvalue < 307))
  {
    Green();
  }

  if ((307 <= sensorvalue) && (sensorvalue < 716))
  {
    Blue(); 
  }

  if ((716 <= sensorvalue) && (sensorvalue <= 1023))
  {
    Red();
  }
  

}

void Green()
{
  digitalWrite(redpin, LOW); 
  digitalWrite(greenpin, HIGH); 
  digitalWrite(bluepin, LOW); 
  
}

void Blue()
{
  digitalWrite(redpin, LOW); 
  digitalWrite(greenpin, LOW); 
  digitalWrite(bluepin, HIGH); 
}

void Red()
{
  digitalWrite(redpin, HIGH); 
  digitalWrite(greenpin, LOW); 
  digitalWrite(bluepin, LOW); 
}