Hello,
What I want to happen is when a button that is glued to the front of jabduino

and it gets pressed (bumped into a wall) how can I make the robot then "DO THIS." The problem is I want it to be able to sense a press and "DO THIS" at any time, not just at certain times...
void setup() {
//Setup our motors and speed control plus define our pins
// Motor 1
#define pwma 11
#define ain2 10
#define ain1 9
//Motor 2
#define pwmb 7
#define bin1 6
#define bin2 5
// ==== Motor 1 ===== //
//PWMA
pinMode(pwma, OUTPUT);
//AIN2
pinMode(ain2, OUTPUT);
//AIN1
pinMode(ain1, OUTPUT);
// ==== Motor 2 ==== //
//BIN1
pinMode(bin1, OUTPUT);
//BIN2
pinMode(bin2, OUTPUT);
//PWMB
pinMode(pwmb, OUTPUT);
//BUTTON STUFF
#define button 2
pinMode(button, INPUT);
}
void loop() {
// ===== Straight ===== //
//M1
digitalWrite(pwma, 50);
digitalWrite(ain2, HIGH);
digitalWrite(ain1, LOW);
//M2
digitalWrite(pwmb, 100);
digitalWrite(bin2, HIGH);
digitalWrite(bin1, LOW);
delay(2000);
// == Stop one wheel ==//
digitalWrite(pwma, LOW);
digitalWrite(ain2, LOW);
digitalWrite(ain1, HIGH);
delay(200);
// === turn around === //
//M1
digitalWrite(pwma, 50);
digitalWrite(ain2, LOW);
digitalWrite(ain1, HIGH);
//M2
digitalWrite(pwmb, 100);
digitalWrite(bin2, HIGH);
digitalWrite(bin1, LOW);
delay(750);
button3:{
//Go backwards
//M1
digitalWrite(pwma, 50);
digitalWrite(ain2, LOW);
digitalWrite(ain1, HIGH);
//M2
digitalWrite(pwmb, 100);
digitalWrite(bin2, LOW);
digitalWrite(bin1, HIGH);
delay(1000);
// === turn around === //
//M1
digitalWrite(pwma, 50);
digitalWrite(ain2, LOW);
digitalWrite(ain1, HIGH);
//M2
digitalWrite(pwmb, 100);
digitalWrite(bin2, HIGH);
digitalWrite(bin1, LOW);
delay(250);
}
}