How to reveal a rect/region?

[sethmachine]

Hi,

What is the native to reveal a rect/region to the player, e.g. they have vision of that rect/region.

I tried using this call

call SetFogStateRect(owner, FOG_OF_WAR_VISIBLE, townArea, true)

But all it did was keep the fog, except reveal that there were buildings under it.

 

[Vinz]

I don't know why JASS is so weird and does not do things it's supposed to. </3

 

[sethmachine]

Can you show me how this is done in GUI?

 

[Vinz]

Apparently the BJ does this.

function CreateFogModifierRectBJ takes boolean enabled, player whichPlayer, fogstate whichFogState, rect r returns fogmodifier
    set bj_lastCreatedFogModifier = CreateFogModifierRect(whichPlayer, whichFogState, r, true, false)
    if enabled then
        call FogModifierStart(bj_lastCreatedFogModifier)
    endif
    return bj_lastCreatedFogModifier
endfunction

Probably FogModifiers have to be started via that call?

 

[IcemanBo]

It's because you have to create a FogModifier first, that can be enabled. In GUI it's done automatically, here it's in jass:

call FogModifierStart(CreateFogModifierRect(whichPlayer, FOG_OF_WAR_VISIBLE, whichRect, true, false))

 

[sethmachine]

Ah many thanks. But do I need to destroy the fog modifier as well (store it in a variable then call destroy)? Or does it not leak?

 

[IcemanBo]

You are going to use it, so better don't destroy it.

e: If you want to get rid of it after a while or deactivate it, then you should store it into a variable first.

 

[edo494]

Isnt there also native to stop fogmodifier? Im on phone so I cant check, but from logical point of view there should be. Destroy objects only when you dont need them anymore