Vehicle Safety Systems

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#define LEDFLASHER 3
#define ALARMSOUNDER 5
#define ALARMSWITCH 2
int i = 0;
int val = LOW;
int pre_val = LOW;
int state = 0;
int x=0;
void setup()
{
    pinMode(LEDFLASHER, OUTPUT);
    pinMode(ALARMSOUNDER, OUTPUT);
    pinMode(ALARMSWITCH, INPUT);
    delay(60000);
}
void loop()
{
    state = digitalRead(ALARMSWITCH);
    if(state==0)
    x=1;
    if (x == 1)
    {
        for(i = 0; i < 255; i = i + 2) { analogWrite(LEDFLASHER, i); analogWrite(ALARMSOUNDER, i); delay(10); } for(i = 255; i > 1; i = i - 2)
        {
            analogWrite(LEDFLASHER, i);
            analogWrite(ALARMSOUNDER, i);
            delay(5);
        }
        for(i = 1; i <= 10; i++)
        {
            analogWrite(LEDFLASHER, 255);
            analogWrite(ALARMSOUNDER, 200);
            delay(100);
            analogWrite(LEDFLASHER, 0);
            analogWrite(ALARMSOUNDER, 25);
            delay(100);
        }
    }
    else
    {
        analogWrite(ALARMSOUNDER, 0);
        analogWrite(LEDFLASHER, 0);
    }
    pre_val = val;
}