[Trigger] When Key clicked event

[Null]

Hello! I m trying to make a trigger which selects a unit when a key from the keyboard is clicked (for ex F4) and idk how to make the event can someone please help?

 

[Midnighters]

Depends on if you are wanting to use GUI, jass, or LUA.

Firstly, you would need the unit set to a variable to call upon at a later point.

• HeroVarSet
  • Events
    • Map initialization
  • Conditions
  • Actions
    • Set VariableSet HeroVar = Blood Mage 0001 <gen>

Then the Button Event. Unfortunately, in GUI, with the given events, you are limited to left, right, up, and down arrow keys. This is different in jass and LUA.
I am sure there is a way to work around that using customscripts, but I don't have experience with tying GUI and jass/lua together that way.

• HotkeyPressed
  • Events
    • Player - Player 1 (Red) Presses the Left Arrow key
  • Conditions
  • Actions
    • Selection - Select HeroVar for Player 1 (Red)

I can't really give you an example in jass as I don't know jass well at all. That might give you a starting point.

 

[Null]

I saw the arrow keys, I don t like those and I cannot find a command for the other keys. I tried to transform the trigger into jass, then replace the arrow key with another key... and that crashed the game.

 

[Midnighters]

Jass uses OSKEY_ to register the button

 

[Null]

Idk what that means

 

[Midnighters]

OSKEY_ is the key event example. OSKEY_P would register the P key button press. As I said, jass side I don't understand myself, however the OSKEY format is used within lua as well. Let me see if I can find the thread on it.

Edit:
OSKEY Tutorial by Tasyen
This explains OSKEYs in detail and lists what keys are usable within wc3 code

Edit 2:
There is a post on the page which lays out jass key events like the following;

function Trig_MoveStart_Copy_Actions takes nothing returns nothing
    *InsertActionsHere*
endfunction

//===========================================================================
function InitTrig_MoveStart_Copy takes nothing returns nothing
    set gg_trg_MoveStart_Copy = CreateTrigger( )
    call BlzTriggerRegisterPlayerKeyEvent(trigger,Player(0), OSKEY_W, 0, true)
    call TriggerAddAction(gg_trg_MoveStart_Copy, function Trig_MoveStart_Copy_Actions)
endfunction

 

[Null]

variable gg_trg_MoveStart_Copy is not declared. what kind of variable is it?

 

[ThompZon]

variable gg_trg_MoveStart_Copy is not declared. what kind of variable is it?

It's the triggers name. I.E. the one created in GUI before converting it to "custom text".

 

[Midnighters]

As he said.

In jass and lua though you can declare variables without using the variable editor. If you check the tutorials section and look at a beginners jass guide it will break the basics down for you.

As I said, I know minimal jass syntaxes, as I mostly mess with LUA and GUI

 

[Null]

All I m saying is that if i copy paste the stuff you wrote there it crashes, even after i add an action.

 

[hugope]

All I m saying is that if i copy paste the stuff you wrote there it crashes, even after i add an action.

Hello! I m trying to make a trigger which selects a unit when a key from the keyboard is clicked (for ex F4) and idk how to make the event can someone please help?

Here you go mate.

With the next code and triggers a specific unit is selected when someone presses F4. You can copy the code and triggers to try it or just download and open the map attached in this post.

You can assign almost any key. Feel free to ask me if you want to assign a key but don't how to program it. Remember that most of the function keys (F1-F12) already do something when pressed, so be careful when assigning something to them. Normally F4 selects a fourth hero.

function KeyPressActions takes nothing returns nothing
    local oskeytype pressedkey = BlzGetTriggerPlayerKey()
    if (pressedkey == OSKEY_F4) then
call QuestMessageBJ(GetPlayersAll(), 1, "F4 pressed")
call ConditionalTriggerExecute(gg_trg_F4Pressed)

    endif
endfunction



function InitializeHotkey takes nothing returns nothing

    local trigger keytrig = CreateTrigger()

    call BlzTriggerRegisterPlayerKeyEvent(keytrig, Player(0), OSKEY_F4, 0, true)

    call TriggerAddAction(keytrig, function KeyPressActions)

endfunction

• Untitled Trigger 001
  • Events
    • Map initialization
  • Conditions
  • Actions
    • Custom script: call InitializeHotkey()

• F4Pressed
  • Events
  • Conditions
  • Actions
    • Selection - Select Paladin 0001 <gen> for Player 1 (Red)

 

[Midnighters]

Here you go mate.

With the next code and triggers a specific unit is selected when someone presses F4. You can copy the code and triggers to try it or just download and open the map attached in this post.

You can assign almost any key. Feel free to ask me if you want to assign a key but don't how to program it. Remember that most of the function keys (F1-F12) already do something when pressed, so be careful when assigning something to them. Normally F4 selects a fourth hero.

function KeyPressActions takes nothing returns nothing
    local oskeytype pressedkey = BlzGetTriggerPlayerKey()
    if (pressedkey == OSKEY_F4) then
call QuestMessageBJ(GetPlayersAll(), 1, "F4 pressed")
call ConditionalTriggerExecute(gg_trg_F4Pressed)

    endif
endfunction



function InitializeHotkey takes nothing returns nothing

    local trigger keytrig = CreateTrigger()

    call BlzTriggerRegisterPlayerKeyEvent(keytrig, Player(0), OSKEY_F4, 0, true)

    call TriggerAddAction(keytrig, function KeyPressActions)

endfunction

• Untitled Trigger 001
  • Events
    • Map initialization
  • Conditions
  • Actions
    • Custom script: call InitializeHotkey()

• F4Pressed
  • Events
  • Conditions
  • Actions
    • Selection - Select Paladin 0001 <gen> for Player 1 (Red)

Thanks for clarifying this, was planning to when I got home tonight. Hard to do from a phone lol

 

[Null]

Damn that worked! thanks for help nice people

 

[lolreported]

I made a system that allows GUI users to use the new oskey natives in a GUI environment (you'll be able to detect whenever any key is pressed or released).

The "F4 to select a unit" trigger would look like this with this system:

• SelectUnitWithF4
  • Events
    • Game - GUIKeyEvent becomes Equal to 1.00
  • Conditions
    • _GUIKeyTrigger Equal to GUIKEY_F4
    • _GUIKeyIsDown Equal to False
  • Actions
    • Selection - Select Footman 0001 <gen> for _GUIKeyPlayer

If you think this could be useful I've uploaded it to the Spells section,

GUIKeyEvent 1.4a

Version 1.31 introduced the possibility to detect when ANY keyboard key is pressed or released, but this functionality is limited to JASS/Lua users only as Blizzard never implemented any GUI functionality for this new feature. I've seen some requests and questions from GUI users...

www.hiveworkshop.com

 

[Null]

glad people are still active and helping. Definetly a very useful trigger.

 

[Dr Super Good]

Be aware that such events require network synchronisation before they fire. As such in multiplayer there will be at least 1 round trip time between you and the server before the conditions and actions of the trigger run. This makes it not really suitable for selecting units or simulating a UI related hot key as there will be a significant delay which can interrupt other commands issued between.