Need help with a Analog and Digital Intruder alarm

Hey guys I'm new here and I'm struggling on my electronics project.

I have to create an embedded system of my choice (i went for an Intruder alarm). It has 3 inputs - a sliding switch (digital), PIR sensor (digital), IR sensor (Analog).

I have attached my c code.
I just want to know how the main function coudl work for having 3 inputs (2 digital and 1 analog) into 1 named function I've created.

C code is attached.

Thanks for anyone who can help!Attachment 16330

I reformatted your code's intentation

Code:

---

void main (void)
{


    //SET UP
    ANSEL  = 0;                                    //turn off all analog inputs
    ANSELH = 0;


    ANSELbits.ANS1 = 0;                            //RA1 setting to Digital
    ANSELbits.ANS2 = 0;                            //RA2 setting to Digital


    TRISD = 0b00000000;                            //Port D bits 7:0 are all outputs
    LATD  = 0b00000000;                        //turns off PORTD outputs, good start position


    TRISC = 0b00000000;                            //Port C bits 7:0 are all outputs
    LATC  = 0b00000000;                        //turns off PORTC outputs, good start position
   
    TRISAbits.TRISA0 = 1;                        //TRISA0 Input (IR Sensor)
    TRISAbits.TRISA1 = 1;                        //TRISA1 Input (PIR Sensor)
    TRISAbits.TRISA2 = 1;                        //TRISA2 Input (Switch)


    // this code configures the display 
   
    WriteCmd ( 0x02 );                            // sets 4bit operation
    WriteCmd ( CLEAR_SCREEN);                   
    WriteCmd ( FOUR_BIT & LINES_5X7 );            // sets 5x7 and multiline operation.
    WriteCmd ( CURSOR_BLINK );                    // blinks cursor
    WriteCmd ( CURSOR_RIGHT  );                    // moves cursor right   
   


    while(1)                            // Start of user program
    {
        //Init ADC
        ADC_Init();
        ADC_Convert();
        //LATA = ADRESH;
        Delay10KTCYx(25);
   
        DistanceValue = ADRESH;
        Delay1KTCYx(1);


        READING = (DistanceValue);
        if (READING > 0b100110)  // Binary Number is 38 which is Number coming
                                // from 500mV which is    around    30cm away from Sensor
        {
            INTRUDERALERT();
        }
   
        READING = (DistanceValue);
        if (READING < 0b100110)
        {
          SENTRYMODE();
        }
   
    }


    if (PORTAbits.RA2 == 0 && READING > 0b100110)        //Checks if Button is Pressed
    {
        TURNOFF();
    }
}

---

It is pretty clear that your "Checks if Button is Pressed" is out side of the main 'while()' loop, and will not get run.