how to cumulate 2 actions

hello, newbies in arduino,
trying program these actions:

1-enter secret code on keypad

2-if right code entered, blink led while waiting for…

3-a touch sensor activated finally...

4-keep led on , unlock door

can't cumulate code , sensor unlock magnet solenoid

if can light lantern,

code attached below

ok. sketch moves through number of states.

0 - waiting more kepresses. finished when recent 4 (or six) keypresses match code

1 - waiting touch sensor. finishes when touch sensor acivated (go state  2), or when there timeout (go state 0).

2 - keeping door unlocked. finishes when … dunno. going keep door unlocked set amount of time? going sense when door opened. , go 'locked' mode when closes again?

code: [select]


enum state {
  entering_code = 0,
  waiting_touch_sensor = 1,
  door_unlocked = 2
}
state = entering_code;

void loop() {
  switch(state) {
  case entering_code:
    read_the_keypad();
    if(valid_code_entered()) {
      start_blinking_the_led();
      start_touch_sensor_timeout();
      state = waiting_touch_sensor;
    }
    break;

  case waiting_touch_sensor
    if(touch_sensor_timeout_exceeded()) {
      stop_blinking_the_led();
      reset_the_keypad();
      state = entering_code;
    }
    else if(touch_sensor_sensed()) {
      stop_blinking_the_led();
      unlock_the_door();
      start_unlock_timeout();
      state = door_unlocked;
    }
    else {
      make_the_led_blink();
    }
    break;

  case door_unlocked:
    if(door_unlock_timeout_exceeded()) {
      lock_the_door();
      reset_the_keypad();
      state = entering_code;
    }
    break;
  }
}



of course, have write various functions main function invokes.

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