[E2]Damage Functions Mk2: Complete Rehash

[Flieboy]

Hi guys,

I am sure some of you remember that a while ago I made some "damage functions" for e2, getting attacker, inflictor, damage etc. Today I decided, with some encouragement from "Dav1d" that I would remake them with a nicer layout and a few more functions, as well as a new datatype.

The functions included in this version are:

runOnDamage(N) -- Runs every time damage is inflicted on anything

dmgClk() -- Returns 1 every time damage is inflicted on anything

entity:dmginfo() -- Returns the "damage" datatype, this is used for the rest of the functions, you retrieve the damage data from it

damage:getDamage() -- Returns the damage inflicted on the entity from the damage datatype

damage:getAttacker() -- Returns the entity attacking the entity from the damage datatype

damage:getInflictor() -- Returns the entity inflicting the damage on the entity from the damage datatype

damage:getVictim() -- Basically just returns the entity from the entity:dmginfo()

getVictim() -- Returns the entity of ANYTHING that has damage inflicted on it

damage:dmgPos() -- Returns the position that the entity was hit

damage:dmgForce() -- Returns the force inflicted on the entity as a directional vector

damage:dmgNormal() -- Returns a normalized vector, denoting the direction in which the entity was hit

I hope these functions are better than my old ones and I WILL accept suggestions and requests, I also appreciate bug reports. I plan to also create a table function to receive all of the data in a table and also the type of damage. Anyway, here's the code:

local registered_chips = {}
local dmgrun = 0
local damageData = nil
local damagedEnt = nil


registerType("damage", "dmg", nil,
	nil,
	nil,
	function(retval)
		if retval == nil then return end
		if type(retval) ~= "table" then error("Return value is neither nil nor a table, but a "..type(retval).."!",0) end
	end,
	function(v)
		return type(v) ~= "table"  or not v.HitPos
	end
)

e2function damage operator=(damage lhs, damage rhs)
	self.vars[lhs] = rhs
	self.vclk[lhs] = true
	return damage
end

registerCallback("destruct",function(self)
	registered_chips[self.entity] = nil
end)

__e2setcost(1)


e2function void runOnDamage(activate)
    if activate ~= 0 then
        registered_chips[self.entity] = true
    else
		registered_chips[self.entity] = nil
    end
end


e2function number dmgClk()
	return dmgrun
end

e2function damage entity:dmginfo()
if damagedEnt ~= this then return nil end
return damageData
end

e2function number damage:getDamage()
if this == nil then return 0 end
return this:GetDamage()
end

e2function entity damage:getAttacker()
if this == nil then return end
return this:GetAttacker()
end

e2function entity damage:getInflictor()
if this == nil then return end
return this:GetInflictor()
end

e2function entity damage:getVictim()
if this == nil then return end
return damagedEnt
end

e2function entity getVictim()
return damagedEnt
end

e2function vector damage:dmgPos()
if this == nil then return {0,0,0} end
return this:GetDamagePosition()
end

e2function vector damage:dmgForce()
if this == nil then return {0,0,0} end
return this:GetDamageForce()
end

e2function vector damage:dmgNormal()
if this == nil then return {0,0,0} end
local force = this:GetDamageForce()
return force:Normalize()
end

local function DamageClock(ent, inflictor, attacker, amount, dmginfo)
	local ents = {}
	
	-- this additional step is needed because we cant modify registered_chips while it is being iterated.
	for entity,_ in pairs(registered_chips) do
		if entity:IsValid() then table.insert(ents, entity) end
	end
	
	dmgrun = 1
	damagedEnt = ent
    damageData = dmginfo
	for _,entity in ipairs(ents) do
		entity:Execute()
	end
	dmgrun = 0	
    damagedEnt = nil
    damageData = nil
end

hook.Add("EntityTakeDamage", "DamageClock", DamageClock)

__e2setcost(nil)

ENJOY!

[Dav1d]

Aha, yay!
Nice work flieboy :3

[Colonel Thirty Two]

Kewl

[Hitman271]

This has now usurped my old damage scale lua addon.....

[libintia]

very nice

[Flieboy]

This has now usurped my old damage scale lua addon.....

Haha sorry, Hitman, but always take solace in the fact that yours is an actual entity (and one I have used frequently at that!) and this is just a few extensions.

[Dav1d]

Bumpity Bump bump!
Didn't Bull say something about committing Flie's old damage detection functions?
What about these sexy new shiny ones? I would love for them to be SVN'd and I'm sure there are lots of people who would agree with me.

[Drunkie]

Whats wrong with using the wired damage detector entity?

[Divran]

Whats wrong with using the wired damage detector entity?

Can it detect damage done to all and any entity on the entire server simultaneously?

[Flieboy]

And can it detect the force inflicted as a directional vector and the position that the damage was inflicted?