[help] How to create a pop-up menù?

Lawrence · May 7, 2014

Hello guys, today I was trying to make a menu appear, so I searched in the "end game screen".

The screens and text appears, but not the buttons (and after some seconds the game freezes)

here's the script (I copied it from endgamedialog.lua)

local Screen = require "widgets/screen"
local Button = require "widgets/button"
local AnimButton = require "widgets/animbutton"
local ImageButton = require "widgets/imagebutton"
local Text = require "widgets/text"
local Image = require "widgets/image"
local UIAnim = require "widgets/uianim"
local Widget = require "widgets/widget"
local Menu = require "widgets/menu"
local PopupDialogScreen = require "screens/popupdialog"
local buttons = 2

local CustomScreen= Class(Screen, function(self, buttons)
   Screen._ctor(self, "CustomScreen")

   --darken everything behind the dialog
    self.black = self:AddChild(Image("images/global.xml", "square.tex"))
    self.black:SetVRegPoint(ANCHOR_MIDDLE)
    self.black:SetHRegPoint(ANCHOR_MIDDLE)
    self.black:SetVAnchor(ANCHOR_MIDDLE)
    self.black:SetHAnchor(ANCHOR_MIDDLE)
    self.black:SetScaleMode(SCALEMODE_FILLSCREEN)
   self.black:SetTint(0,0,0,1)

   self.proot = self:AddChild(Widget("ROOT"))
    self.proot:SetVAnchor(ANCHOR_MIDDLE)
    self.proot:SetHAnchor(ANCHOR_MIDDLE)
    self.proot:SetPosition(0,0,0)
    self.proot:SetScaleMode(SCALEMODE_PROPORTIONAL)

   --throw up the background
    self.bg = self.proot:AddChild(Image("images/globalpanels.xml", "panel_upsell.tex"))
    self.bg:SetVRegPoint(ANCHOR_MIDDLE)
    self.bg:SetHRegPoint(ANCHOR_MIDDLE)
   self.bg:SetScale(0.8,0.4,0.8)

   --title
    self.title = self.proot:AddChild(Text(TITLEFONT, 50))
    self.title:SetPosition(0, 180, 0)
    self.title:SetString("Hello")

   --text
    self.text = self.proot:AddChild(Text(BODYTEXTFONT, 30))
    self.text:SetVAlign(ANCHOR_TOP)

   local character = GetPlayer().profile:GetValue("characterinthrone") or "wilson"

    self.text:SetPosition(0, -60, 0)
    self.text:SetString("I'm testing some stuff")
    self.text:EnableWordWrap(true)
    self.text:SetRegionSize(700, 350)


   --create the menu itself
   local button_w = 200
   local space_between = 20
   local spacing = button_w + space_between

   self.menu = self.proot:AddChild(Widget("menu"))
   local total_w = #buttons*button_w
   if #buttons > 1 then
       total_w = total_w + space_between*(#buttons-1)
   end

   self.menu:SetPosition(100, -220,0)

   local pos = Vector3(0,0,0)
   for k,v in ipairs(buttons) do
       local button = self.menu:AddChild(ImageButton())
        button:SetPosition(pos)
        button:SetText(v.text)
        button:SetOnClick( function() TheFrontEnd:PopScreen(self) v.cb() end )
       button.text:SetColour(0,0,0,1)
        button:SetFont(BUTTONFONT)
        button:SetTextSize(40)
        pos = pos + Vector3(spacing, 0, 0)

       self.default_focus = button
   end

   self.buttons = buttons
end)

return CustomScreen

and this is the log

customscreen.lua:62: attempt to get length of local 'buttons' (a nil value)
LUA ERROR stack traceback:
        D:/Programmi/Steam/steamapps/common/dont_starve/data/../mods/www/scripts/screens/customscreen.lua(62,1) in function '_ctor'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/class.lua(98,1) in function 'customscreen'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/../mods/www/scripts/prefabs/hellshop.lua(136,1) in function 'fn'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/mainfunctions.lua(126,1)
        =[C] in function 'SpawnPrefab'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/mainfunctions.lua(156,1) in function 'SpawnPrefab'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/util.lua(23,1) in function 'DebugSpawn'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/consolecommands.lua(24,1) in function 'c_spawn'
        c_spawn("hellshop")(1,1) in main chunk
        =[C] in function 'pcall'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/screens/consolescreen.lua(88,1) in function 'Run'
   ...
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/widgets/textedit.lua(70,1) in function 'OnRawKey'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/widgets/widget.lua(94,1) in function 'OnRawKey'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/widgets/widget.lua(94,1) in function 'OnRawKey'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/widgets/widget.lua(94,1) in function 'OnRawKey'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/screens/consolescreen.lua(40,1) in function 'OnRawKey'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/frontend.lua(699,1) in function 'OnRawKey'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/frontend.lua(117,1) in function 'fn'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/events.lua(46,1) in function 'HandleEvent'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/input.lua(157,1) in function 'OnRawKey'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/input.lua(324,1)
scripts/frontend.lua(717,1) SCRIPT ERROR! Showing error screen
.../common/dont_starve/data/scripts/consolecommands.lua:25: attempt to index local 'inst' (a nil value)
...mapps/common/dont_starve/data/scripts/stategraph.lua:110: calling 'ProfilerPush' on bad self (string expected, got nil)
LUA ERROR stack traceback:
        =[C] in function 'ProfilerPush'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/stategraph.lua(110,1) in function 'Update'
        D:/Programmi/Steam/steamapps/common/dont_starve/data/scripts/update.lua(127,1)
Could not unload undefined prefab 0x350a87f2 (note)
Could not unload undefined prefab 0x350a87f2 (note)
Could not unload undefined prefab 0x350a87f2 (note)
Could not unload undefined prefab 0x350a87f2 (note)
Could not unload undefined prefab 0x350a87f2 (note)
Could not unload undefined prefab 0x350a87f2 (note)
scripts/mods.lua(293,1) unloading prefabs for mod MOD_www

Also tried to edit the pausescreen with this:

local Screen = require "widgets/screen"
local Button = require "widgets/button"
local AnimButton = require "widgets/animbutton"
local Menu = require "widgets/menu"
local Text = require "widgets/text"
local Image = require "widgets/image"
local UIAnim = require "widgets/uianim"
local Widget = require "widgets/widget"
local PopupDialogScreen = require "screens/popupdialog"

local customscreen = Class(Screen, function(self)
   Screen._ctor(self, "customscreen")

   self.active = true
   SetPause(true,"pause")

   --darken everything behind the dialog
    self.black = self:AddChild(Image("images/global.xml", "square.tex"))
    self.black:SetVRegPoint(ANCHOR_MIDDLE)
    self.black:SetHRegPoint(ANCHOR_MIDDLE)
    self.black:SetVAnchor(ANCHOR_MIDDLE)
    self.black:SetHAnchor(ANCHOR_MIDDLE)
    self.black:SetScaleMode(SCALEMODE_FILLSCREEN)
   self.black:SetTint(0,0,0,.75)

   self.proot = self:AddChild(Widget("ROOT"))
    self.proot:SetVAnchor(ANCHOR_MIDDLE)
    self.proot:SetHAnchor(ANCHOR_MIDDLE)
    self.proot:SetPosition(0,0,0)
    self.proot:SetScaleMode(SCALEMODE_PROPORTIONAL)

   --throw up the background
    self.bg = self.proot:AddChild(Image("images/globalpanels.xml", "small_dialog.tex"))
    self.bg:SetVRegPoint(ANCHOR_MIDDLE)
    self.bg:SetHRegPoint(ANCHOR_MIDDLE)
   self.bg:SetScale(1.5,1.2,1.2)

   --title
    self.title = self.proot:AddChild(Text(TITLEFONT, 50))
    self.title:SetPosition(0, 50, 0)
    self.title:SetString("Do you need something?")

   --create the menu itself
   local player = GetPlayer()
   local button_w = 160

   local buttons = {}
   table.insert(buttons, {text="Button1", cb=function() TheFrontEnd:PopScreen(self) if not self.was_paused then SetPause(false) end end })

   self.menu = self.proot:AddChild(Menu(buttons, button_w, true))
   self.menu:SetPosition(-(button_w*(#buttons-1))/2, -65, 0)

   TheInputProxy:SetCursorVisible(true)
   self.default_focus = self.menu
end)

function customscreen:OnControl(control, down)
   if customscreen._base.OnControl(self,control, down) then return true end

   if (control == CONTROL_PAUSE or control == CONTROL_CANCEL) and not down then
       self.active = false
       TheFrontEnd:PopScreen()
       SetPause(false)
       return true
   end

end

function customscreen:OnUpdate(dt)
   if self.active then
       SetPause(true)
   end
end

function customscreen:OnBecomeActive()
   customscreen._base.OnBecomeActive(self)
   -- Hide the topfade, it'll obscure the pause menu if paused during fade. Fade-out will re-enable it
   TheFrontEnd:HideTopFade()
end

return customscreen

And in this case it wont even show up (and the log says nothing)

..

Of course, this is the first time I'm trying to add a menù screen, so I have no clue... Can anyone help me? Thanks

debugman18 · May 7, 2014

Why are you doing this?

local total_w = #buttons*button_wif #buttons > 1 then    total_w = total_w + space_between*(#buttons-1)end

The error is because you are trying to get the length of the "buttons" table, which you haven't declared.

Lawrence · May 7, 2014

Why are you doing this?
local total_w = #buttons*button_wif #buttons > 1 then    total_w = total_w + space_between*(#buttons-1)end
The error is because you are trying to get the length of the "buttons" table, which you haven't declared.

Yes, I know that (as the log said), but I can't understand where "buttons" is declared in the original lua file (I can't find it anywhere)

debugman18 · May 7, 2014

Yes, I know that (as the log said), but I can't understand where "buttons" is declared in the original lua file (I can't find it anywhere)

It's declared in the function parameters. Where it's getting it from, I'm not sure.

What are you trying to do with this? It'd be easier to write your own screen than it would to work with an already existing one.

Lawrence · May 7, 2014

It's declared in the function parameters. Where it's getting it from, I'm not sure.

What are you trying to do with this? It'd be easier to write your own screen than it would to work with an already existing one.

I made a prefab that should ask the player

"do you need help?"

with two possible answers ("yes" or "no")

and of course, with a function-call if the choose is "Yes"

debugman18 · May 7, 2014

I made a prefab that should ask the player

"do you need help?"

with two possible answers ("yes" or "no")

and of course, with a function-call if the choose is "Yes"

Ah, that's cake, you don't even need a new screen! You may need to add GLOBAL to some of these functions, but your log will tell you which ones.

local PopupDialogScreen = require "screens/popupdialog"local function dialogchoice(inst)    local function yeschoice(inst)        SetPause(false)        TheFrontEnd:PopScreen()        --Stuff    end    local function nochoice(inst)        SetPause(false)        TheFrontEnd:PopScreen()        --Stuff    end    SetPause(true)    local options = {        {text="Yes.", cb = yeschoice},        {text="No.", cb = nochoice},    }    TheFrontEnd:PushScreen(PopupDialogScreen(    "Title of the dialog.",    "Whatever else you want to put here.",    options))enddialogchoice(inst)

Lawrence · May 7, 2014

Ah, that's cake, you don't even need a new screen! You may need to add GLOBAL to some of these functions, but your log will tell you which ones.

local PopupDialogScreen = require "screens/popupdialog"local function dialogchoice(inst)    local function yeschoice(inst)        SetPause(false)        TheFrontEnd:PopScreen()        --Stuff    end    local function nochoice(inst)        SetPause(false)        TheFrontEnd:PopScreen()        --Stuff    end    SetPause(true)    local options = {        {text="Yes.", cb = yeschoice},        {text="No.", cb = nochoice},    }    TheFrontEnd:PushScreen(PopupDialogScreen(    "Title of the dialog.",    "Whatever else you want to put here.",    options))enddialogchoice(inst)

Ah, that's good (the fact that I don't need a new screen) but uhm... Nothing happens when I spawn the prefab, and the log doesn't report errors :s

debugman18 · May 7, 2014

Ah, that's good (the fact that I don't need a new screen) but uhm... Nothing happens when I spawn the prefab, and the log doesn't report errors :s

Are you calling the dialogchoice function?

Lawrence · May 7, 2014

Are you calling the dialogchoice function?

Of course, I also added a "print" line to see if it is correcly called (and the print line appears)

debugman18 · May 7, 2014

Of course, I also added a "print" line to see if it is correcly called (and the print line appears)

Could you post the prefab?

Lawrence · May 7, 2014

Could you post the prefab?

Here

local PopupDialogScreen = require "screens/popupdialog"

(...)

local function dialogchoice(inst)

   print("something should happen here")

   local function yeschoice(inst)
        SetPause(false)
        TheFrontEnd:PopScreen()
        --Stuff
    end

    local function nochoice(inst)
        SetPause(false)
        TheFrontEnd:PopScreen()
        --Stuff
    end

    SetPause(true)
    local options = {
        {text="Yes.", cb = yeschoice},
        {text="No.", cb = nochoice},
    }

    TheFrontEnd:PushScreen(PopupDialogScreen(

    "Title of the dialog.",
    "Whatever else you want to put here.",

    options))
end

local function fn(Sim)

   local inst = CreateEntity()
   local minimap = inst.entity:AddMiniMapEntity()
   minimap:SetPriority( 5 )
   minimap:SetIcon( "pigking.png" )
   minimap:SetPriority( 1 )
   inst.entity:AddTransform()
   inst.entity:AddAnimState()
   inst.entity:AddSoundEmitter()
   inst.entity:AddDynamicShadow()
   inst.DynamicShadow:SetSize( 10, 5 )

    MakeObstaclePhysics(inst, 2, .5)
    inst.Transform:SetScale(2,2,2)

    inst.AnimState:SetBank("thing")
    inst.AnimState:SetBuild("thing")
    --inst.AnimState:PlayAnimation("idle", true)

   inst:SetStateGraph("SGthingthing")

    --inst:AddComponent("inspectable")
    --inst:AddComponent("talkable")

   inst:AddComponent("talker")
    inst.components.talker.fontsize = 33
    inst.components.talker.font = TALKINGFONT
    inst.components.talker.offset = Vector3(0,-400,0)

   inst.soundsname = "wallace"

   inst.task2 = inst:DoPeriodicTask(math.random(10,20), function() Talk(inst) end)

   dialogchoice(inst)

    return inst
end

debugman18 · May 7, 2014

You're calling it too quickly.

inst:DoTaskInTime(1, function() dialogchoice(inst) end)

That will work.

Lawrence · May 7, 2014

You're calling it too quickly.
inst:DoTaskInTime(1, function() dialogchoice(inst) end)
That will work.

Oh o_o yes now it works, thanks a lot again, Debugman ^^

I couldn't think that is necessary to wait to call a popup-function :/

Sign In

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites