[Development] Lock Application

[arleslie]

I have finished creating my app, there are a lot of bugs, it does work on the Zen somewhat, I'm still trying to figure out how to kill all of the bugs in it at the moment. Feel free to work with it and try it out.

I just tried the newest version on the Zen, it allows you to create a password, then after that it won't start back up.

[Brett_val]

Hi arleslie, welcome on board

Nice idea for an app, and I think you did well but there were some things I noticed that might cause it to malfunction on the player (the simulator is somewhat more flexible about some things).

First, the loop is not correct. You forgot to ask if the control is touch or button. After that you can ask what type of control it was (click, hold, ), or in case of a control.isButton, which button it was, and then if it was an up, click or hold.

Originally Posted by arleslie

after that it won't start back up.

I think that's because it crashes, because if the password.txt exists, you are opening it twice:

if io.open("password.txt","r") then
print("read")
file = io.open("password.txt","r")

Ok I got a little carried away while fixing some stuff.. here is my edited main.lua. Among some other little changes it now doesn't close after you have set the password, flashes the icon when you enter the wrong code (I saw it was being loaded so I thought I'd use it ), sets the audio volume to max and back to where it was on exit, and works on the player:

--this is my first Lua application

screen.orientation(1)
height = screen.height()
width = screen.width()
black = color.new(0,0,0)
red = color.new(255,0,0)
gray = color.new(100,100,100)
text.color(color.new(255,0,0))
text.size(20)
audioold=audio.volume()
audio.volume(25)

screen.fillrect(0,0,width,height,gray)

--screen.backlight(50,10)
screen.update()

print("load image")
img_lock = image.load("ICON.png")

print("load sound")
snd_stolen = wav.load("Stolen.wav")

ask = "yes"
print(ask)

print("check")
file = io.open("password.txt","r")

if file~=nil then
	print("read")

	password2 = file:read("*a")
	file:close()
	print(password2)
	if string.len(password2) == 4 then
		ask = "no"
	else
		text.draw(50,50,"No Password set")
		print(ask)
	end

else
	text.draw(50,50,"No Password set")
end

password = ""

function create_pad()

--screen.fillrect(0,0,60,20,gray) --erase place of password

screen.drawrect(35,175,71,213,black)
text.draw(40,175,"1","center",71)
screen.drawrect(102,175,138,213,black)
text.draw(107,175,"2","center",138)
screen.drawrect(169,175,205,213,black)
text.draw(174,175,"3","center",205)
screen.drawrect(35,223,71,261,black)
text.draw(40,223,"4","center",71)
screen.drawrect(102,223,138,261,black)
text.draw(107,223,"5","center",138)
screen.drawrect(169,223,205,261,black)
text.draw(174,223,"6","center",205)
screen.drawrect(35,271,71,309,black)
text.draw(40,271,"7","center",71)
screen.drawrect(102,271,138,309,black)
text.draw(107,271,"8","center",138)
screen.drawrect(169,271,205,309,black)
text.draw(174,271,"9","center",205)
screen.drawrect(102,319,138,357,black)
text.draw(107,319,"0","center",138)
screen.update()
end

function flashimage()
	for i=2, 7 do
		if math.floor(i/2)==i/2 then
			img_lock:draw(96,50)
			screen.update()
			screen.fillrect(96,50,48,48,gray)
		else
			screen.update()
		end
		os.wait(750)
	end
end

function getnum(x, y)

	if x >= 35 and x <= 71 and y >= 175 and y <= 213 then
		num = "1"
	elseif x >= 102 and x <= 138 and y >= 175 and y <= 213 then
		num = "2"
	elseif x >= 169 and x <= 205 and y >= 175 and y <= 213 then
		num = "3"
	elseif x >= 35 and x <= 71 and y >= 223 and y <= 261 then
		num = "4"
	elseif x >= 102 and x <= 138 and y >= 223 and y <= 261 then
		num = "5"
	elseif x >= 169 and x <= 205 and y >= 223 and y <= 261 then
		num = "6"
	elseif x >= 35 and x <= 71 and y >= 271 and y <= 309 then
		num = "7"
	elseif x >= 102 and x <= 138 and y >= 271 and y <= 309 then
		num = "8"
	elseif x >= 169 and x <= 205 and y >= 271 and y <= 309 then
		num = "9"
	elseif x >= 102 and x <= 138 and y >= 319 and y <= 357 then
		num = "0"
	else 
	num = ""
	end

end

function setpassword(password)
	file = io.open("password.txt","w")
	file:write(password)
	file:close()
	password2=password
	screen.fillrect(0,0,60,20,gray) --erase place of password
	screen.fillrect(50,50,160,20,gray)
	screen.update()
end

create_pad()

while 1 do



if control.read()==1 then
	if control.isTouch()==1 then
	
		x,y = touch.pos()
		if touch.click() == 1 then
			getnum(x,y)
			password = password..num
			screen.fillrect(0,0,60,20,gray) --erase place of password
			text.draw(0,0,password)
			screen.update()
			if string.len(password) == 4 then
				if ask == "yes" then
					setpassword(password)
					print("password created")
					password = ""
					ask= "no"
				else
					if password == password2 then
						break
					else 
						wav.play(snd_stolen)
						password = ""
						flashimage()
						--create_pad()
					end
				end	
			end
		
		end
	
	elseif control.isButton()==1 then
	
		if button.home()==1 then
			if button.event()==1 then
				wav.play(snd_stolen)
			elseif button.hold()==1 then
				wav.play(snd_stolen)
			end
		elseif button.power() == 1 then
			wav.play(snd_stolen)
		end
	
	end
	
else
	os.wait(50)
end

end
audio.volume(audioold)
screen.fillrect(0,0,width,height,gray)
screen.update()
img_lock:close()
snd_stolen:close()

screen.orientation(0)

But, one important note:
When the player goes into idle shutdown, the app is closed and you can just turn the player back on, without having to enter a password.... so if you really intend to use this as a security app, you should turn off idle shutdown in the player's settings. (there is no way that I know of to disable idle shutdown in the code.)