The Lua treatment of variable numbers of arguments is new to me, so let us see if I understand correctly. If we execute the following...
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map:checkAllEntities(x, y, "block_move", self, true)
The arg table inside of checkAllEntities is {1=self, 2=true}. This arg table then gets passed on to Entity check...
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function _M:checkAllEntities(x, y, what, ...)
...
local p = e:check(what, x, y, ...)
At first I thought to myself "block_move" is a value of course, but then I noticed the ActorLife interface...
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function _M:check(prop, ...)
if type(self[prop]) == "function" then return self[prop](self, ...)
else return self[prop]
end
end
And voila! Using the variable names from all the way at the top we get x as x, y as y, self (the Actor trying to move, not the entity already in the tile) as e and true as can_attack.
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function _M:block_move(x, y, e, can_attack)
-- Dont bump yourself!
if e and e ~= self and can_attack then
e:attack(self)
end
return true
end
So yes, if the above is all correct I follow your explanation. And now back to Projectile.
