Robot skipping loop

Question

Robotc ev3

It skips directly to scan section

I want it to go forward initially backward then turn around

And scan using the ultrasound sensor

And attack if anybody spotted in proximity

#pragma config(Sensor, S3,     light,          sensorEV3_Ultrasonic)

#pragma config(Sensor, S4,     color,          sensorEV3_Color, modeEV3Color_Color)

#pragma config(Motor,  motorB,          B,             tmotorEV3_Large, PIDControl, encoder)

#pragma config(Motor,  motorC,          C,             tmotorEV3_Large, PIDControl, encoder)

//*!!Code automatically generated by 'ROBOTC' configuration wizard               !!*//

task main()

{

 //int n=0;

long red, green, blue;

while(1==1)

{

 motor(B)=100;

 motor(C)=100;

 getColorRGB(S4,red,green,blue);

if(red>20 && green>20 && blue >20)              // reverse-turn - white line

{

motor(C)= -100;

motor(B)= -100;

wait1Msec(1000);

motor(C)= -100;

motor(B)=100;

wait1Msec(5000);

motor(C)= 100;

motor(B)= 100;

wait1Msec(2000);

}

while(getUSDistance(light)>40)  //scan

{

motor(C)=-100;   

motor(B)=100;

}

while(getUSDistance(light)<40)  //attack

{

motor(C)=100;

motor(B)=100;

}

   

}

}

Answer 1

Check below i have re-modulated your code, here and there..

#pragma config(Sensor, S3,     light,          sensorEV3_Ultrasonic)
#pragma config(Sensor, S4,     color,          sensorEV3_Color, modeEV3Color_Color)
#pragma config(Motor,  motorB,          B,             tmotorEV3_Large, PIDControl, encoder)
#pragma config(Motor,  motorC,          C,             tmotorEV3_Large, PIDControl, encoder)
//*!!Code automatically generated by 'ROBOTC' configuration wizard               !!*//

task main()
{
     //int n=0;
     long red, green, blue;

    // --- Initial forward, backward, turn ---
    motor(B)=100;
    motor(C)=100;
    wait1Msec(2000);

     motor(C)= -100;
     motor(B)= -100;
     wait1Msec(1000);

    motor(C)= -100;
    motor(B)=100;
    wait1Msec(5000);

    motor(C)= 100;
    motor(B)= 100;
    wait1Msec(2000);

    while(1==1)
    {
           getColorRGB(S4,red,green,blue);

          if(red>20 && green>20 && blue >20)   // reverse-turn - white line
         {
                 motor(C)= -100;
                 motor(B)= -100;
                 wait1Msec(1000);

                 motor(C)= -100;
                motor(B)=100;
                wait1Msec(5000);

               motor(C)= 100;
               motor(B)= 100;
               wait1Msec(2000);
        }

        while(getUSDistance(light)>40)  //scan
        {
                motor(C)=-100;   
               motor(B)=100;
        }

       while(getUSDistance(light)<40)  //attack
       {
              motor(C)=100;
              motor(B)=100;
       }
    }
}