[Custom Character] Food values & Custom boomerang & Lifesteal aura

[Near4422]

Hey!

I am working on my first ever mod to don't starve together (and it's a character mod).
I am still struggling a lot with the lua, but getting better. 

I would like to implement:

• Custom values for food types (for example for monster meat i'd like him to take half the original penalty),
  
  I've trid this metod inside modmain.lua:

  GetPlayer = GLOBAL.GetPlayer
  
  -- Food Values
  AddPrefabPostInit("carrot", function(inst)
          if GetPlayer().prefab == "fiddlesticks" then
              inst.components.edible.healthvalue = 2
              inst.components.edible.hungervalue = 0
              inst.components.edible.sanityvalue = -3
          end
      end)

  but it resulted in instant error whenever i try to pick up a carrot :/ 

• Special custom boomerang with infinite uses but using 10 health points per use (and if possible only usable by this custom character),
  I'd love to get a full tutorial on how to set up a new custom item.
   
• Aura around character that deals 1 point of damage every 2 seconds to every hostile characters in certain radius, and per each point dealt heal 1 point of hp (this could be working with a certain item in hand or just as a aura around character - whatever is easier).
  
  I've already created a topic about this subject a moment ago, but decided to create a new one containing all desired things.
  
  So far i tried the method mentioned by Combustiblemon, but it still isn't finished yet:

  local function IsVaildTarget(target)
  	return target ~= nil and target.components.health ~= nil
  	--can't drain when target has no health
   		and not ((target:HasTag("prey") and not target:HasTag("hostile")) or
  			target:HasTag("structure") or
  			target:HasTag("wall") or
  			target:HasTag("companion"))
  end
  
  local function onattack(inst, owner, target)
  	target:AddTag("scythevictim")
  	local count = 0
  	local pt = Vector3(target.Transform:GetWorldPosition())
  	local range = 5
  	local ents = TheSim:FindEntities(pt.x, pt.y, pt.z, range)
  	for i,ent in ipairs(ents) do
  		if IsVaildTarget(ent) or ent and ent.components.health and ent:HasTag("scythevictim") then
  			--because of scythevictim tag, you can even drain 'not vaild target(like wall, chester)' when it's directly attacked.
  			if ent._scythedmgtask ~= nil then
  				ent._scythedmgtask:Cancel()
  				--it will reset its timer when it's re-attacked before timer done
  			end
  			ent._scythedmgtask = ent:DoTaskInTime(10, function(ent) ent._scythecount = nil ent._scythedmg = nil ent._scythedmgtask = nil end)
  			--reset everything when 10 sec timer is done
  			if ent._scythecount == nil then
  				ent._scythedmg = ent:DoPeriodicTask(2, function(ent) ent.components.health:DoDelta(-1, false, owner) end)
  				--every 2 seconds, it will deal 1 damage
  				ent._scythecount = ent._scythecount + 1
  			else
  				--it can be applied multiple times!
  				ent._scythedmg = ent:DoPeriodicTask(2, function(ent) ent.components.health:DoDelta(-ent._scythecount, false, owner) end)
  				--every 2 seconds, it will deal 'ent._scythecount' damage
  				ent._scythecount = ent._scythecount + 1
  			end
  			count = count + ent._scythecount
  			--since ent._scythecount = damage dealt, you will heal total amount of damage dealt
  		end
  	end
  	if owner._draintask ~= nil then
  		owner._draintask:Cancel()
  		owner._drain:Cancel()
  	end
  	--it will reset its timer when it is attacked before time done
  	owner._draintask = owner:DoTaskInTime(10, function(owner) owner._drain = nil owner._draintask = nil end)
  	owner._drain = owner:DoPeriodicTask(2, function(owner) owner.components.health:DoDelta(count) end)
  end

  There's high chance that i've poorly implemented this code but so far it causes Disconnect once a monster is attacked by weapon with this code.
  I am attatching core files of the mod so anyone can get a nice inside of what's going on.
  Thanks in advance to everyone who will try to help me with my very first character

modmain.lua fiddlesticks.lua scare_scythe.lua

[Ultroman]

Start here

Should get you everything except the boomerang, but there are tutorials for weapons somewhere on the forum.