Project 7 incomplete2

#include <atx.h>
#define BLACK 300
#define CENTER_SENSOR 1
#define LEFT_SENSOR 2
#define RIGHT_SENSOR 3
#define LFM 0
#define LBM 1
#define RFM 5
#define RBM 4
int state = 1;
void setup()
{
  sw1_press();
}

void loop()
{
  int left = analogRead (LEFT_SENSOR);
  int right = analogRead (RIGHT_SENSOR);
  if(left < BLACK && right < BLACK)
  {
    if (CENTER_SENSOR > BLACK)
    {
      turn_right(1000,300);
      motor_stop(ALL);
    }
    if (left < 500 && 500 < BLACK && CENTER_SENSOR < 500)
    {
      motor_stop(ALL);
    }
    switch(state)
    {
    case 1:
      {
        turn_right(1000,1000);
        break;
      }
    case 2:
      {
        turn_right(1000,1000);
        break;
      }
    case 3:
      {
        turn_left(1000,1000);
        break;
      }
    default:
      {
        motor_stop(ALL);
        sw1_press()
        }
      }
    }
  else if (left < BLACK)
  {
    spin_left(100);
  }
  else if (right < BLACK)
  {
    spin_right(100);
  }
  else if (left > BLACK && right < BLACK && CENTER_SENSOR < BLACK)
  {
    turn_left(100,300);
    motor_stop(ALL);
  }
  else
  {
    motor_forward(30);
  }
}
void go_forward(int power,int ms)
{
    motor(LFM,power);
    motor(LBM,power);
    motor(RFM,power);
    motor(RBM,power);
    delay(ms);
    motor_stop(ALL);
}
void motor_forward(int power)
{
    motor(LFM,power);
    motor(LBM,power);
    motor(RFM,power);
    motor(RBM,power);
}
  void turn_right(int power,int ms)
{
    motor(LFM,power);
    motor(LBM,power);
    motor(RFM,-power);
    motor(RBM,-power);
    delay(ms);
    motor_stop(ALL);
}
  void turn_left(int power,int ms)
{
    motor(LFM,-power);
    motor(LBM,-power);
    motor(RFM,power);
    motor(RBM,power);
    delay(ms);
    motor_stop(ALL);
}
  void spin_right(int power)
{
    motor(LFM,power);
    motor(LBM,power);
    motor(RFM,-power);
    motor(RBM,-power);
}
  void spin_left(int power)
{
    motor(LFM,-power);
    motor(LBM,-power);
    motor(RFM,power);
    motor(RBM,power);
}