DOW and WarEffort

[Kossatx]

Hi again, I'm trying to write an script to set the WarEffort after a DOW. I have write this one in the function "PhaseStart(alliance)", but it don't works. Is necessary to write an specific event for DOWspain?

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	if GetEvent("DOWspain") == game.turn then
 	  SetWarEffort(15, 60)
    end

[Robotron]

Looks good to me. What makes you think it does not work?

Note that war effort can only be changed from turn 2 onward.

[Kossatx]

Well, I've written the script as I said but there is no setting for the 60% WarEffort when the turn of the DOWspain begins. I don't know If I have to do any with "DOWspain" event, I haven't written any "DOWspain" event because I think isn't necessary

[Robotron]

You mean there is no report window for raised war effort at the end of turn?

This only will show if the nation in question is controlled by the player.

Here's a way you can check whether the war effort was set correctly:

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if GetEvent("DOWspain") == game.turn then
 	  SetWarEffort(15, 60)
end
local spain = game:GetFactionById(15)
LogUi("SPANISH WAR EFFORT IS SET TO: " .. spain.luaData.warEffort

Reload the game and press end turn (end the game turn).
At the start of the next turn open the logfile and search for "SPANISH WAR EFFORT IS SET TO:" in the logfile
There should be the number value printed there which you set before: 60.

You can use LogUi("INSERT TEXT" .. variable) to print values for any variable to the logfile using the above method. This is helpful to control if things are processed as planned.

[Kossatx]

I've written this in function "PhaseStart(alliance)", in Potzblitz.lua file (as you know I only play your mod with a few modifications). But nothing happens when Spain allies with player's faction. There is no reduction to 60% warEffort, and there is no report from "LogUi"

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	if GetEvent("DOWspain") == game.turn then
 	  SetWarEffort(15, 60)
    end
	local spain = game:GetFactionById(15)
	LogUi("SPANISH WAR EFFORT IS SET TO: " .. spain.luaData.warEffort)

I suppose the reference to "DOWspain" event don't need to write any specific event

[Robotron]

Oh, now I understand...

You cannot do checks for stuff happening on the SAME gameturn in PhaseStart(alliance) because PhaseStart(alliance) goes BEFORE all events, so the check for

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GetEvent("EXAMPLE") == game.turn

will never pass and that's the reason why the value for war effort has never changed.

What you could do is either put SetWarEffort(15, 60) directly into your event in function StandardDOW(attacker, defender)

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if GetEvent("DOWitaly") == game.turn then
	SetEvent("SpainJoinsWar", game.turn)      
end
if GetEvent("SpainJoinsWar") >0 
	and GetEvent("SpainJoinsWar") +2 == game.turn then
	if italy.alliance.id == 2 then 
		local luck = math.random(1,6)
		if luck <= 3 then	
			SetFactionAlignment(15, math.random(95,100)) 
			SetEvent("SpainJoinsWar1", game.turn)
			SetWarEffort(15, 60)

		elseif luck > 3 and luck <= 5 then
			SetEvent("SpainJoinsWar2", game.turn)
			SetWarEffort(15, 60) 

		elseif luck == 6 then
			SetFactionAlignment(15, math.random(0,5))  
			SetEvent("SpainJoinsWar3", game.turn)
			SetWarEffort(15, 60)      
		end	
	end
end

or, if you absolutely want to use PhaseStart(alliance) then do a check for an event that lies in the PAST like for example:

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if GetEvent("SpainJoinsWar") >0 
	and GetEvent("SpainJoinsWar") +2 ==  game.turn then
		SetWarEffort(15, 60)      
end

This WILL be checked because the event lies 2 turns in the past.

Note that any events that have not yet happened, and also events that do not even exist, have a value of 0 so you can NOT just check for

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if GetEvent("SpainJoinsWar") +2 ==  game.turn then
		SetWarEffort(15, 60)      
end

because then the event would fire on turn 2 (0+2 = 2), that's why there's an additional check in the example for

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GetEvent("SpainJoinsWar") >0 

Fascinating stuff, eh?

[Kossatx]

I enjoy a lot with your masterclasses Finally I think the better solution is, as you say, to write the script in "StandardDOW" function in events.lua file. But in order to include the 60% war Effort in any DOWspain, I have written it in these two different scripts:

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if GetEvent("DOWitaly") == game.turn then
	SetEvent("SpainJoinsWar", game.turn)      
end
if GetEvent("SpainJoinsWar") >0 
	and GetEvent("SpainJoinsWar") +2 == game.turn then
	if italy.alliance.id == 2 then 
		local luck = math.random(1,6)
		if luck <= 3 then	
			SetFactionAlignment(15, math.random(95,100)) 
			SetEvent("SpainJoinsWar1", game.turn)
			SetEvent("SpainJoinsWar", -1)

		elseif luck <= 5 then
			SetEvent("SpainNeutral", game.turn) 
			SetEvent("SpainJoinsWar", -1)

		elseif luck == 6 then
			SetFactionAlignment(15, math.random(0,5))  
			SetEvent("SpainJoinsWar2", game.turn) 
			SetEvent("SpainJoinsWar", -1)			
		end	
	end
end

if GetEvent("DOWspain") == game.turn then
	SetWarEffort(15, 60)     
end

It now works fine, thanks a lot Robotron

[Kossatx]

In order to close definitively the event, I must fix this last script in events.lua file:

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function SpainWarEffort()
if GetEvent("DOWspain") > 0
and spain.luaData.warEffort < 100 then
	local luck = math.random(1,12)
	if luck <= 12 then
	if spain.alliance.id == 1 then
	spain.luaData.warEffort = spain.luaData.warEffort +	10
	france.ConsumeProductionPoints(5)
	britain.ConsumeProductionPoints(10)
	elseif spain.alliance.id == 2 then
	spain.luaData.warEffort = spain.luaData.warEffort +	10
	germany.ConsumeProductionPoints(15)
	end
	end
end
end

It has an error I don't know how to fix:

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[19:22:37][11348]game/game_events.lua:14646(global SpainWarEffort) game/game_events.lua:14646: attempt to index global 'spain' (a nil value)

Any idea Robotron?

[Robotron]

I will translate the relevant parts of the error message for you so you will know in the future because this error is very common.

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[19:22:37][11348]game/game_events.lua:14646(global SpainWarEffort) game/game_events.lua:14646: attempt to index global 'spain' (a nil value)

1. There was a problem in script: game/game_events.lua

2. the error occurred in function SpainWarEffort()

3. the error is in line 14646

4.

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attempt to index global 'spain' (a nil value)

this means:

there is a reference to a variable called "spain"

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and spain.luaData.warEffort < 100 then

which was not defined before, you forgot to do first:

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local spain = game:GetFactionById(15)

A variable that was not defined before has no value/content, it does not exist, it is "nil" (nothing).
The script tried to compare "spain" (which is nil) with 100.
But you can't compare 100 with nil and because of that the crash happened.

Always remember to first define all variables you will need at the start of every new function or when you introduce new stuff into existing functions.


P.S.:

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local luck = math.random(1,12)
	if luck <= 12 then
		(...)
	end

This is a test that will always succeed, because 12 is the highest possible random number you have defined before with math,random(1,12).
Try math.random(1,20).

[Kossatx]

Great Robotron, it already works ok

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function SpainWarEffort()
local spain = game:GetFactionById(15)
local germany = game:GetFactionById(2)
if spain.alliance.id ~= 0
and spain.luaData.warEffort < 100 then
	local luck = math.random(1,12)

	if luck == 12 then
	if spain.alliance.id == 1 then
	spain.luaData.warEffort = spain.luaData.warEffort +	10
	france:ConsumeProductionPoints(5)
	britain:ConsumeProductionPoints(10)
	SetEvent("SpainWarEffort", game.turn)
	elseif spain.alliance.id == 2 then
	spain.luaData.warEffort = spain.luaData.warEffort +	10
	germany:ConsumeProductionPoints(15)
	SetEvent("SpainWarEffort", game.turn)
	end
	end
end
end

The reason of "if luck <= 12" was because it was the modified script for testing the event, an I forgot to change it before paste it If you come to Barcelona I must invite you the beers you want, you have helped me a lot