Lighting provoked electric damage weapon help

[FelineDreams]

I have done most of the modding for the character mod I am making, yet I am having trouble with making a character unique item (a knife to be more specific) have electric damage only when it gets struck by lighting.

I plan on the knife staying charged for four to five hits until it goes back to being a (relatively) normal knife yet I haven't been able to get either of these feats working. Does anyone have any tips to help with this?

Edited May 14, 2019 by FelineDreams

[FelineDreams]

The coding I did for the knife is here just in case you need to see

Spoiler

local Assets =
{
    Asset("ANIM", "anim/ether_knife_build.zip"), -- a standard asset
    Asset("ATLAS", "images/inventoryimages/ether_knife.xml"),  
}
local function onequip(inst, owner)
    owner.AnimState:OverrideSymbol("swap_object", "swap_nightmaresword", "swap_nightmaresword")
    owner.AnimState:Show("ARM_carry")
    owner.AnimState:Hide("ARM_normal")

local function fn(Sim)
    local inst = CreateEntity()
    
    inst.entity:AddTransform()
    inst.entity:AddAnimState()
    inst.entity:AddNetwork

    MakeInventoryPhysics(inst)
    
    inst.AnimState:SetBank("ether_knife")
    inst.AnimState:SetBuild("ether_knife_build")
    inst.AnimState:PlayAnimation("idle", true)
    
    inst.AddTag("sharp")
    inst.AddTag("ether")
    
    inst.AddComponent("weapon")
    inst.components.weapon:SetDamage(TUNING.NIGHTSTICK_DAMAGE)
    
    inst:AddComponent("inventoryitem")
    inst.components.inventoryitem.atlasname = "images/inventoryimages/ether_knife.xml"

    inst:AddComponent("inspectable")
    
    return inst
end

local function discharge(inst)
    if inst.charged then
        inst.Light:Enable

end

STRINGS.NAMES.ETHER_KNIFE = "Ether Knife"
STRINGS.CHARACTERS.GENERIC.DESCRIBE.ETHER_KNIFE = "A knife with a magical power within."

return Prefab( "common/inventory/ether_knife", fn, Assets)

 

Edited May 15, 2019 by FelineDreams

[Ultroman]

So, how do you want this to work? Do you want to have to place the item on the ground, and wait for it to be struck by lightning? Or should it get charged when the character is struck by lightning? Why would lightning strike it? Lightning is pretty random.

[FelineDreams]

I want it to charge when the character is struck by lightning.  I wanted to balance it out a bit by making it that way since lightning is random (with the exception being wickerbottom's the end is neigh book).

[Ultroman]

For that, may I suggest you study the component file "playerlightningtarget.lua". It has the following function, which is called when the player is struck by lightning.

local DefaultOnStrike = function(inst)
    if inst.components.health ~= nil and not (inst.components.health:IsDead() or inst.components.health:IsInvincible()) then
        if not inst.components.inventory:IsInsulated() then
            local mult = TUNING.ELECTRIC_WET_DAMAGE_MULT * inst.components.moisture:GetMoisturePercent()
            local damage = TUNING.LIGHTNING_DAMAGE + mult * TUNING.LIGHTNING_DAMAGE
            -- Magic hit point stuff that isn't being used right now
            -- if damage >= inst.components.health.currenthealth - 5 and inst.components.health.currenthealth > 10 then
            --     damage = inst.components.health.currenthealth - 5
            -- end

            inst.components.health:DoDelta(-damage, false, "lightning")
            inst.sg:GoToState("electrocute")
        else
            inst:PushEvent("lightningdamageavoided")
        end
    end
end

As you can see, if it hits and does damage, it calls DoDelta, giving the cause as "lightning", so you can listen to your character's "healthdelta" event, check the "data" parameter you are passed for the "cause" value, and see if it's "lightning". If it is, do something to the character's items.

Then you will probably also want to listen to the event "lightningdamageavoided", so you can react to that, too.

[FelineDreams]

ok thanks, I will look into it