local PART = {}

PART.ClassName = "event"
PART.HideGizmo = true

PART.Events =
{
    velocity = function(owner, self)
        local num = tonumber(self.Arguments)
        if num and owner:GetVelocity():Length() > num then
            return true
        end
    end,

    on_fire = net and (function(owner)
        return owner:IsOnFire()
    end) or nil,

    flashlight = function(owner)
        if owner:IsPlayer() and owner:FlashlightIsOn() then
            return true
        end
    end,

    voice_chat = function(owner)
        if owner:IsPlayer() and owner:IsSpeaking() then
            return true
        end
    end,

    primary_ammo_empty = function(owner)
        local wep = owner:GetActiveWeapon()
        if wep:IsValid() and wep:Clip1() == 0 then
            return true
        end
    end,

    secondary_ammo_empty = function(owner)
        local wep = owner:GetActiveWeapon()
        if wep:IsValid() and wep:Clip2() == 0 then
            return true
        end
    end,

    on_ground = function(owner)
        if owner:IsPlayer() and owner:IsOnGround() then
            return true
        end
    end,

    under_water = function(owner, self)
        local num = tonumber(self.Arguments) or 3

        if owner:WaterLevel() > num then
            return true
        end
    end,
}

function PART:Think()
    local owner = self:GetOwner()

    if owner:IsValid() then
        local func = self.Events[self.Event]

        if func then
            local parent = self:GetParent()
            if parent:IsValid() then
                if self.Invert then
                    parent.EventHide = not (func(owner, self) or false)
                else
                    parent.EventHide = (func(owner, self) or false)
                end
            end
        end
    end
end

function PART:Initialize()
    self.StorableVars = {}

    pac.StartStorableVars()
        pac.GetSet(self, "Name", "")
        pac.GetSet(self, "Description", "")
        pac.GetSet(self, "Hide", false)
        pac.GetSet(self, "Event", "")
        pac.GetSet(self, "Arguments", "")
        pac.GetSet(self, "Invert", false)
    pac.EndStorableVars()
end

pac.RegisterPart(PART)