Get number of players in actual .map file?

[Gwledig]

Hi I was wondering if there's any way of checking if a particular side exists, not as set by the joining of a player in lobby, but from the .map itself, i.e. check if the side is set in the map?

[Ravana]

Since map is effectively text file you could check if it includes numbers in format of

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1 Xos       , 5 Xos

, that Xos is just from example I used, can be any terrain code, need to exclude border_size=1 though.

[Gwledig]

thanks, can you be a bit more specific how you would do this in an event, scenario toplevel etc or what?

[Ravana]

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	[event]
		name=moveto
		first_time_only=no
		{VARIABLE map "{~add-ons/Maps_by_Inanna/maps/huge_empty.map}"}
		[if]
			[variable]
				name=map
				contains=2
			[/variable]
			[then]
				[lua]
					code=<< wesnoth.message("lua","2 found") >>
				[/lua]
			[/then]
			[else]
				[lua]
					code=<< wesnoth.message("lua","2 not found") >>
				[/lua]
			[/else]
		[/if]
		[if]
			[variable]
				name=map
				contains=4
			[/variable]
			[then]
				[lua]
					code=<< wesnoth.message("lua","4 found") >>
				[/lua]
			[/then]
			[else]
				[lua]
					code=<< wesnoth.message("lua","4 not found") >>
				[/lua]
			[/else]
		[/if]
		
	
	[/event]

Something like this, though mind border then.
Tested to not cause oos.

[Gwledig]

thanks Ravana I'll see if I can get this to detect the number of players in a randomly generated map & set the players in the scenario dynamically.... otherwise you can select a random map with 4 players but the game lobby shows 6 cos its defined in the scenario, then when the game starts odd things happen, so i think I need to modify the random generator scenario to place players on a wider range of hexes as well as detecting & auto updating the scenario so erroneous game lobby player slots don't show up, as there will only be the number of spawn points available as set by the host who configured the random map........ the idea of using a random map for the scenario is looking a bit of a pain....

[Gwledig]

Ravana can you also tell me the best kind of event to replace castle and keep tiles with grass? This doesn't seem to work for the random map generator scenario, not sure why -

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#define REFRESH_SCREEN
[event]
name=turn 1 refresh  
first_time_only=no
[redraw]  
side=1-6
[/redraw]

[terrain]
[and]
terrain=*^K* # here is the filter criterion
[/and]
terrain=Gg # and the new terrain
[/terrain]
[terrain]
[and]
terrain=*^C* # here is the filter criterion
[/and]
terrain=Gg # and the new terrain
[/terrain]


fire_event=yes
[/event]
#enddef

[Ravana]

Prestart event would work best, I dont think you need redraw then either. That depends on when you change map, just make sure this happens later.

Havent dealt with terrain filtering but Im not sure if it is allowed to start with * there.

[Gwledig]

sorry I should have just done some work and testing, got it sorted in the end, start or prestart and this syntax

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#define REMOVE_CASTLES
[event]
name=prestart
first_time_only=yes

[terrain]
[and]
terrain=K* # here is the filter criterion
[/and]
terrain=Gg # and the new terrain
[/terrain]
[terrain]
[and]
terrain=C* # here is the filter criterion
[/and]
terrain=Gg # and the new terrain
[/terrain]



fire_event=yes
[/event]
#enddef

[James_The_Invisible]

Just a side note: fire_event=yes in [event] does nothing at all as far as I know. I noticed that you add it to your events, it is useless.

[Ravana]

Notice that some people indeed create maps with keeps and castles as overlays. One way is storing whole map and then using contains= for each hex.

[Sapient]

Why not just use [store_starting_location] ?

[Gwledig]

The main thing I am still trying to figure out is how to get the game lobby to show the correct number of slots available in the actual map, for a random map where the host can modify the number of players, so the random map scenario.cfg might be set to 6 [side] slots, allowing for 6 players, but the host could make a game with my random map scenario and change this to 4 or even 2, then when the game lobby appears it will show 6 slots due to 6 [side] tags in the scenario, then when 6 players join you will get weird stuff happening because there are only, say 4 spawn points on the map. So I am trying to dynamically set the number of [side] tags in the scenario to reflect the number of spawn points set in the random map.

[Gwledig]

As far as I can tell from the wesnoth wiki, the code

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fire_event=yes

is used for custom events with your own custom event name=xxxx I have just added it as part of an event templater which I copied and pasted, it's harmless and just kicks in the event at the point when it's called where a core supported event name isn't present.

[Ravana]

From what I understand fire_event=yes is for when you do something with wml that normally would happen in game, like killing unit.

[James_The_Invisible]

@Gwledig I cannot remember reading this anywhere and it actually sounds like an outdated info to me. Events with custom names are supported without it since I remember. Can I ask where you have read it?
Actually is used for things that Ravana outlined. Other actions when this makes sense is selecting, moving, harming, recalling, unstoring units and capturing villages via WML.