Added Creature:onChangeZone event

[reyaleman]

Pull Request Prelude

• [x] I have followed proper The Forgotten Server code styling.
• [x] I have read and understood the contribution guidelines before making this PR.
• [x] I am aware that this PR may be closed if the above-mentioned criteria are not fulfilled.

Changes Proposed

• Added Creature.onChangeZone event for scripts where we need to check if a creature changes a zone...

for example:

function Creature:onChangeZone(fromZone, toZone)
	if toZone == ZONE_PROTECTION then
		self:say("I'm protected!")
	end
end

• Added ZONE_NOLOGOUT return to Tile:getZone() method.

Issues addressed:

[ranisalt]

Can this be achieved with a regular onWalk callback?

[reyaleman]

Can this be achieved with a regular onWalk callback?

It can be done using onStepIn movement but you'd have to register every itemid, actionid or w/e u'll be using and check if a creature is changing zone... but it can be achieved.

[ranisalt]

It can be done using onStepIn movement but you'd have to register every itemid, actionid or w/e u'll be using and check if a creature is changing zone... but it can be achieved.

I mean, create a more generic onMove callback and there check of previous tile zone is different from current tile zone. It's more robust than creating a callback for every small event that may happen

[Zbizu]

I mean, create a more generic onMove callback and there check of previous tile zone is different from current tile zone. It's more robust than creating a callback for every small event that may happen

wasn't that idea initially rejected due to performance concerns?

[EPuncker]

I mean, create a more generic onMove callback and there check of previous tile zone is different from current tile zone. It's more robust than creating a callback for every small event that may happen

wasn't that idea initially rejected due to performance concerns?

that is a good point

[EPuncker]

needs rebase so we can merge it