local killCoordinator = {}
local allowedClasses = {"CLeggedCharacterEntity"}
local amount = 10

-- entity : CLeggedCharacterEntity

local handleEntity = function(entity)
  RunHandled(
    function()
      while not IsDeleted(entity) do
        Wait(CustomEvent("OnStep"))
      end
    end,

    -- kev : CDiedScriptEvent
    On(Event(entity.Died)),
      function(kev)
        local player = kev:GetKillerPlayer()

        if player ~= nil then
          if killCoordinator[player] == nil then
            killCoordinator[player] = 0
          end

          killCoordinator[player] = killCoordinator[player] + 1
          if killCoordinator[player] >= amount then
            SignalEvent("AmountReached", player)
          end
        end
      end
  )
end

RunHandled(
  function()
    WaitForever()
  end,

  -- ev : CEntitySpawnedScriptEvent
  -- entity : CBaseEntity
  OnEvery(CustomEvent("EntitySpawned")),
    function(ev)
      local entity = ev:GetSpawnedEntity()
      local class = entity:GetClassName()

      local hasFound = false
      for i = 1, #allowedClasses, 1 do
        if allowedClasses[i] == class then
          hasFound = true
          break
        end
      end

      if hasFound then
        RunAsync(
          function()
            handleEntity(entity)
          end
        )
      end
    end
)