I don't know about the clicking/tapping (you might need a plugin that lets you click on pictures), but for the basic unlocking mechanic I would push the keys into an array and then compare it with the sequence you want to unlock the door. It involves some simple scripting, but nothing that needs a plugin on its own. I only really know how to do events, not scripting, so there may be even better ways to do this, but this is how I would do it...
If it's a sequence of 7 notes, you could set up 2 arrays plus a regular variable like this:
var sequence = ["a","b","c","d","e","f","g"];
var playedkeys = []; //empty array
$gameVariables.setValue(1, sequence); // store the sequence in Variable 1
$gameVariables.setValue(2, playedkeys); // store the played keys in Variable 2
$gameVariables.setValue(3, 0); // counts the number of correct keys played (optional)
Every time you touch a key, it does this (for example, the C key)
var playedkeys = $gameVariables.value(2); // retrieve the played keys array
playedkeys.push("c");
$gameVariables.setValue(2, playedkeys); // updates the played keys array
// everything below this is optional
var check = $gameVariables.value(3); // time to check if the key played is the right one.
var sequence = $gameVariables.value(1); // need to load the sequence again
if (playedkeys[check] == sequence[check]) {
check += 1;
$gameVariables.setValue(3, check); // update correct keys variables
} else {
check = 0;
playedkeys = [];
$gameVariables.setValue(3, check);
$gameVariables.setValue(2, playedkeys); // boo, pressed the wrong key. start over.
}
// everything above this is optional
var is_same = (playedkeys.length == sequence.length) && playedkeys.every(function(element, index) {
return element === sequence[index]; }); //check and see if the played sequence matches with the lock sequence
if (is_same == true){
$gameSwitches.value(1) == true; // unlock the door
}
^ the way this one works is that it will reset back to 0 as soon as you press the wrong key. It would actually be simpler to do it so that it just checks every 7 key presses (you could take out everything marked optional) but it could be a little more frustrating for the player (and you also have to make sure to reset the playedkeys array if is_same turns up false)
