There is a small project with DirtyLarry library (by @sven) using.
It contains line in file “main.gui_script”:
> 24 --print(self.fields.value)
If you will uncomment the line:
0. Run project
If you will comment the line:
0. Run project
What is going on? Why?
DGTest.zip (13.1 KB)
Windows 7, Editor v1.2.99 (both 1 and 2)
Ok, this has a very logical explanation. I will post the script here for everyones benefit:
local DirtyLarry = require "dirtylarry/dirtylarry"
local function on_menu_button_pressed()
local root = gui.get_node('root')
local is_enabled = gui.is_enabled(root)
gui.set_enabled(root, not is_enabled)
end
function init(self)
msg.post('#', 'acquire_input_focus')
gui.set_enabled(gui.get_node('root'), false)
end
function on_message(self, message_id, message, sender)
if message_id == hash('set_this') then
self.fields = {
value = message.value,
}
gui.set_text(gui.get_node('input/content'), tostring(self.fields.value))
end
end
function on_input(self, action_id, action)
--print(self.fields.value)
local v = DirtyLarry:input('input', action_id, action, gui.KEYBOARD_TYPE_NUMBER_PAD, 'No Text')
DirtyLarry:button('button', action_id, action, on_menu_button_pressed)
end
self.fields will be nil until a set_this message has been received. on_input will be called every time your script receives input. This input can be a mouse click, a key press, game pad button OR mouse movement (depending on your game input bindings ofc).
This means that as soon as the script is running and you move the mouse you will start to get calls to on_input. I’m guessing that self.fields is nil at that point meaning that the on_input function will crash on the print(self.fields.value) line. It crashes since since you are trying to read the value from something that is nil. The crash on the first line will result in subsequent statements not being executed and the input field will not be given the “No text” default value set by Dirty Larry.
The solution is either to set self.fields = {} in init() or check if self.fields is nil before attempting to read values from it.
It looks, you are right.
Thanks!
BTW, there should be errors in the console that would indicate this as well.