local CloverFunctions = {
    --{item, value to set on damager, value to check on parent, chance (0 to 1), bonus proc chance per stack (0 to 1)}
    missile1 = {item = Item.find("AtG Missile Mk. 1", "vanilla"), damagerVar = "missile", parentVar = "missile", chance = 0.1, chanceBonus = 0.1},
    missile2 = {item = Item.find("AtG Missile Mk. 2", "vanilla"), damagerVar = "missile_tri", parentVar = "missile_tri", chance = 0.07, chanceBonus = 0.07},
    gloves = {item = Item.find("Boxing Gloves", "vanilla"), damagerVar = "knockback_glove", parentVar = "knockback", chance = 0.06, chanceBonus = 0.05},
    ifrit = {item = Item.find("Ifrit's Horn", "vanilla"), damagerVar = "horn", parentVar = "horn", chance = 0.08, chanceBonus = 0},
    --spark = {item = Item.find("Legendary Spark", "vanilla"), damagerVar = "spark", parentVar = "spark", chance = 0.08, chanceBonus = 0},
    mortar = {item = Item.find("Mortar Tube", "vanilla"), damagerVar = "mortar", parentVar = "mortar", chance = 0.09, chanceBonus = 0},
    plasma = {item = Item.find("Plasma Chain", "vanilla"), damagerVar = "plasma", parentVar = "plasma", chance = 0.05, chanceBonus = 0},
    knife = {item = Item.find("Rusty Knife", "vanilla"), damagerVar = "bleed", parentVar = "bleed", chance = 0.15, chanceBonus = 0.15},
    sticky = {item = Item.find("Sticky Bomb", "vanilla"), damagerVar = "sticky", parentVar = "sticky", chance = 0.08, chanceBonus = 0},
    instakill = {item = Item.find("Telescopic Sight", "vanilla"), damagerVar = "scope", parentVar = "scope", chance = 0.01, chanceBonus = 0.005},
    thallium = {item = Item.find("Thallium", "vanilla"), damagerVar = "thallium", parentVar = "thallium", chance = 0.1, chanceBonus = 0},
    ukulele = {item = Item.find("Ukulele", "vanilla"), damagerVar = "lightning", parentVar = "lightning", chance = 0.2, chanceBonus = 0},
    willOWisp = {item = Item.find("Will-o'-the-wisp", "vanilla"), damagerVar = "missile", parentVar = "", chance = 0, chanceBonus = 0},
    nug = {item = Item.find("Meat Nugget", "vanilla"), damagerVar = "missile", parentVar = "", chance = 0, chanceBonus = 0},
    otherClover = {item = Item.find("56 Leaf Clover", "vanilla"), damagerVar = "missile", parentVar = "", chance = 0, chanceBonus = 0},
    armsRace = {item = Item.find("Arms Race", "vanilla"), damagerVar = "missile", parentVar = "", chance = 0, chanceBonus = 0},
    embryo = {item = Item.find("Beating Embryo", "vanilla"), damagerVar = "missile", parentVar = "", chance = 0, chanceBonus = 0},
    grenade = {item = Item.find("Concussion Grenade", "vanilla"), damagerVar = "missile", parentVar = "", chance = 0, chanceBonus = 0},
    scarf = {item = Item.find("Hermit's Scarf", "vanilla"), damagerVar = "missile", parentVar = "", chance = 0, chanceBonus = 0},
    icecube = {item = Item.find("Permafrost", "vanilla"), damagerVar = "missile", parentVar = "", chance = 0, chanceBonus = 0},
    taser = {item = Item.find("Taser", "vanilla"), damagerVar = "missile", parentVar = "", chance = 0, chanceBonus = 0}
}

local clover = Item("57 Leaf Clover")
clover.pickupText = "Luck is on your side."

clover.sprite = Sprite.load("Items/clover.png", 1, 16, 16)

local cloverSound = Sound.find("Use", "vanilla")

clover:setTier("rare")
clover:setLog{
    group = "rare",
    description = "All random effects are rolled +1 time(s) for a better outcome.",
    story = "DUDE. HOLY ****",
    destination = "777,\nLucky Drop,\nEarth",
    date = "--/--/2056"
}

registercallback("onActorInit", function(actor)
    actor:set("luck", 0)
end)

clover:addCallback("pickup", function(player)
    player:set("luck", player:get("luck") + 1)
end)

local CloverCheck = function(actor)
    local hasClover = false
    if actor ~= nil then
        if isa(actor, "PlayerInstance") then
            if actor:countItem(clover) > 0 then
                hasClover = true
            end
        end
    end
    return hasClover
end

local CloverReRoll = function(damager, damagerVar, parentVar, chance, chanceBonus, itemCount)
    local parent = damager:getParent()
    if CloverCheck(parent) then
        if math.random() <= (chance + (chanceBonus * (itemCount - 1))) then
            cloverSound:play(0.8 + math.random()*0.2)
            if type(parentVar) == "String" then
                damager:set(damagerVar, parent:get(parentVar) or 0)
            else
                damager:set(damagerVar, parentVar)
            end
        end
    end

end

registercallback("preHit", function(damager)
    local parent = damager:getParent()
    if CloverCheck(parent) then
        if damager:get("critical") ~= 1 then
            for i = 0, parent:get("luck") or 0 do
                if math.random() * 100 <= parent:get("critical_chance") then
                    cloverSound:play(0.8 + math.random()*0.2)
                    damager:set("critical", 1)
                    damager:set("damage", damager:get("damage") * 2)
                    damager:set("damage_fake", damager:get("damage_fake") * 2)
                end
            end
        end
        --On Hit Items--
        for _, itemCheck in pairs(CloverFunctions) do
            if itemCheck.item ~= nil then
                if parent:countItem(itemCheck.item) > 0 then
                    if damager:get(itemCheck.damagerVar) ~= itemCheck.parentVar then
                        for i = 0, parent:get("luck") or 1 do
                            CloverReRoll(damager, itemCheck.damagerVar, itemCheck.parentVar, itemCheck.chance, itemCheck.chanceBonus, parent:countItem(itemCheck.item))
                        end
                    end
                end
            end
        end
    end
end)