Sasuke Amaterasu

amaterasu.lua

 --[[
	Author: PicoleDeLimao
	Date: 11.14.2023
	Implement Sasuke Amaterasu ability
]]

function SpellStart(event)
	local caster = event.caster
	local ability = event.ability
	local target = event.target_points[1]
	local duration = ability:GetLevelSpecialValueFor("duration", ability:GetLevel() - 1)
	local damagePerInt = ability:GetLevelSpecialValueFor("damage_per_int", ability:GetLevel() - 1) / duration / 10

    local dummy = Units:CreateDummy(caster, target, duration)
    dummy:EmitSound("Hero_Sasuke.AmaterasuCast")
    local affectedEnemies = {}
    local affectedEnemiesParticles = {}
    AmaterasuCreate(dummy, affectedEnemies, affectedEnemiesParticles)
    Timers:CreateTimer(0.1, function()
        if duration > 0 then
            duration = duration - 0.1
            for _, unit in pairs(affectedEnemies) do
                if Units:IsValidAlive(unit) then
                    Units:Damage(caster, unit, damagePerInt * caster:GetIntellect(), "katon", ability:GetAbilityDamageType())
                    local newUnits = FindUnitsInRadius(caster:GetTeamNumber(), unit:GetAbsOrigin(), nil, 220.0, DOTA_UNIT_TARGET_TEAM_BOTH, DOTA_UNIT_TARGET_HERO + DOTA_UNIT_TARGET_BASIC, DOTA_UNIT_TARGET_FLAG_MAGIC_IMMUNE_ENEMIES, FIND_ANY_ORDER, false)
                    for _, newUnit in pairs(newUnits) do
                        if Units:IsValidAlive(newUnit) and newUnit ~= caster then
                            AmaterasuCreate(newUnit, affectedEnemies, affectedEnemiesParticles)
                        end
                    end
                else
                    AmaterasuFinish(unit, affectedEnemies, affectedEnemiesParticles)
                end
            end
            return 0.1
        else
            for k, unit in pairs(affectedEnemies) do
                AmaterasuFinish(unit, affectedEnemies, affectedEnemiesParticles)
            end
        end
    end)
end

function AmaterasuCreate(unit, affectedEnemies, affectedEnemiesParticles)
    if TableContains(affectedEnemies, unit:GetEntityIndex()) then
        return
    end
    local index = unit:GetEntityIndex()
    table.insert(affectedEnemies, index, unit)
    local particle = ParticleManager:CreateParticle("particles/heroes/sasuke/amaterasu/sasuke_amaterasu.vpcf", PATTACH_ABSORIGIN_FOLLOW, unit)
    table.insert(affectedEnemiesParticles, index, particle)
    Particles:Attach(particle, unit, "attach_hitloc")
end

function AmaterasuFinish(unit, affectedEnemies, affectedEnemiesParticles)
    if unit == nil or not IsValidEntity(unit) then
        return 
    end
    local index = unit:GetEntityIndex()
    ParticleManager:DestroyParticle(affectedEnemiesParticles[index], false)
    table.remove(affectedEnemies, index)
    table.remove(affectedEnemiesParticles, index)
end