Kombinationslås, PyProcessing, Kickstart i Programmering, DIKU 2018

combination_lock.pyde

# Tilstandsvariablen
lockState = "LOCKED"

# Tegner en lås givet (x,y) koordinat, størrelsesangivelse og
# en boolean open, der angiver om låsen skal tegnes som låst 
# eller åben (True = Åben)
def drawLock(x, y, size, open):
    fill(0)
    rect(x-1.3*size/2,y-size/2, 1.3*size, size, size/10)
    noFill()
    stroke(0)
    strokeWeight(size/7)
    if open:
        arc(x+size, y-size/2, size, size, PI, TWO_PI)
    else:
        arc(x, y-size/2, size, size, PI, TWO_PI)
    stroke(255)
    line(x, y-size/10, x, y+size/10)
    noStroke()
    fill(255)
    ellipse(x, y-size/10, size/4, size/4)

def setup():
    size(200, 200)

def draw():
    global lockState
    background(255, 255, 255)
    
    # Debug print at tilstandsvariablen
    fill(0)
    text(lockState, 20, 20)
    
    if lockState == "UNLOCKED":
        drawLock(width/2, height/2, 50, True)
    else:
        drawLock(width/2, height/2, 50, False)

def keyPressed():
    global lockState
    # Tilstandsmaskinen indkodet som if-sætninger
    if lockState == "LOCKED":
        if key == '8':
            lockState = "FIRST_CORRECT"
        else:
            lockState = "LOCKED"
    elif lockState == "FIRST_CORRECT":
        if key == '3':
            lockState = "SECOND_CORRECT"
        else:
            lockState = "FIRST_CORRECT"
    elif lockState == "SECOND_CORRECT":
        if key == '7':
            lockState = "UNLOCKED"
        else:
            lockState = "SECOND_CORRECT"