I enjoy getting own code run on my iPad and still find things to enhance in my version of LUA jump. Recent mini-project is to associate the highscores with the name of the highscore owner. Thus I am happy to have the new keyboard functions. Can somebody give me an example, how to use the keyboard functions, because I have to admit, I’ m a kind of copy/paste and modify coder. Thanks a lot in advance!
I’am just busy with programming a standard value input field for making calculations.
Main:
-- Use this function to perform your initial setup
function setup()
print("Hello World!")
watch("cycleTime")
watch("cable")
Input:init()
--displayMode(FULLSCREEN)
end
-- This function gets called once every frame
function draw()
-- This sets a dark background color
background(195, 195, 206, 255)
Input:var()
--declaration of input val's
cable = val[4]
--calculations
--printing results on the screen
cycleTime = DeltaTime*1000
end
Class Input:
Input = class()
function Input:init()
--name, default val and unit can be fiiled in here.
--table can be as long as you want
name = {"Drum Diam:","Drum Width:","Flange Diam:","Cable Diam:" }
val = {1,2,3,4}
unit = {"[mm]","[mm]","[mm]","[mm]"}
h = 10
x1 = 10
x2 = 275
x3 = 10
dy = 25
i = 0
a = 0
buffer = ""
end
function Input:var()
-- Codea does not automatically call this method
x = CurrentTouch.x
y = CurrentTouch.y
z = CurrentTouch.state
textMode(CORNER)
fill(5, 5, 5, 255)
font("Verdana")
fontSize(20)
for i = 1, #name do
y1 = HEIGHT - h - dy*i
text(name[i],x1,y1)
t = string.format("%0.2f",val[i])
text(t,x1+x2-textSize(t),y1)
text(unit[i],x1+x2+x3,y1)
--if you hit an input field then you can change the val
--end the input operation with a return
--no val and return = val unchanged
--use iPad in portrait
if x > x1 and y > y1 and y < (y1+dy) and z == BEGAN then
a = i
end
end
if a > 0 then
showKeyboard()
buffer = keyboardBuffer()
text("Input "..name[a].. "? "..buffer,15,300)
function keyboard(key)
if string.byte(key) == 10 then
if #keyboardBuffer() > 0 then
val[a] = buffer
end
hideKeyboard()
a = 0
end
end
end
end
function Input:touched(touch)
-- Codea does not automatically call this method
end
It is a start, but it works
Greetings, Dirk.nl
Pooh, thats not good!
I don’t know how to do!
Second try.
Input = class()
function Input:init()
--name, default val and unit can be fiiled in here.
--table can be as long as you want
name = {"Drum Diam:","Drum Width:","Flange Diam:","Cable Diam:" }
val = {1,2,3,4}
unit = {"[mm]","[mm]","[mm]","[mm]"}
h = 10
x1 = 10
x2 = 275
x3 = 10
dy = 25
i = 0
a = 0
buffer = ""
end
function Input:var()
-- Codea does not automatically call this method
x = CurrentTouch.x
y = CurrentTouch.y
z = CurrentTouch.state
textMode(CORNER)
fill(5, 5, 5, 255)
font("Verdana")
fontSize(20)
for i = 1, #name do
y1 = HEIGHT - h - dy*i
text(name[i],x1,y1)
t = string.format("%0.2f",val[i])
text(t,x1+x2-textSize(t),y1)
text(unit[i],x1+x2+x3,y1)
--if you hit an input field then you can change the val
--end the input operation with a return
--no val and return = val unchanged
--use iPad in portrait
if x > x1 and y > y1 and y < (y1+dy) and z == BEGAN then
a = i
end
end
if a > 0 then
showKeyboard()
buffer = keyboardBuffer()
text("Input "..name[a].. "? "..buffer,15,300)
function keyboard(key)
if string.byte(key) == 10 then
if #keyboardBuffer() > 0 then
val[a] = buffer
end
hideKeyboard()
a = 0
end
end
end
end
function Input:touched(touch)
-- Codea does not automatically call this method
end
Stupid me, the lay-out of my first post is correct, but the second not
hartland, Thanks a lot, I will try it and try to understand it, when I come home and find some time for the good things in life … Yes an own class is much better than just a function I was thinking about …
@hartland I corrected the formatting on your second post.
And I corrected it on the first …
@Andrew_Stacey thanks 
One useful thing to do with keyboard (until we add the ability to query this) is to wrap showKeyboard and hideKeyboard in your own closures, and then add a function to query whether the keyboard is currently on-screen.
function setup()
redefineKeyboardFuncs()
end
function redefineKeyboardFuncs()
local oldShowKeyboard = showKeyboard
local oldHideKeyboard = hideKeyboard
local isShowingKeyboard = false
showKeyboard = function()
if isShowingKeyboad == false then
oldShowKeyboard()
isShowingKeyboard = true
end
end
hideKeyboard = function()
if isShowingKeyboard == true then
oldHideKeyboard()
isShowingKeyboard = false
end
end
showingKeyboard = function()
return isShowingKeyboard
end
end
This lets you test whether the keyboard is currently on screen by calling showingKeyboard()
Thanks Simeon and Andrew_Stacey,
I have done copy and paste from my Codeo program.
How have you changed the formatting, can I do that by myself, and what is wrong with copy/paste?
Hi Hartland,
I believe you need to fence your code (precede and follow) with three tilde marks ~~~.
See ‘fenced code block’ here for an example:
Yes, “fencing” your code is the best way to present code here. That also ensures that entities are properly escaped so that you can do:
<html>
without having to worry. The forum software uses PHP Markdown Extra for formatting, in case you want to look up the details.
I think the combination demonstrated by hartland of keyboardBuffer() to get the players name and function keyboard( key) to check for the line feed will work for me. Now I have to learn how to use it - I had it working, but now calling from Main touched() doesn’t work anymore.
Either my text box vanishes and no input is taken or the Keyboard won’t go away …
I guess my stupideness in coding, siggghh. Thanks so far!
Hi Blanchot, thanks.
But, is it so simple that I must add at the beginning and end of the text three tilde marks?
So,I will try
text with three tilde marks before and after
poeh, I hope
Yes, this works !!,
Thanks, Blanchot!
Greetings, Dirk.nl