ENT.Type = "anim"
ENT.Base = "brts_base_unit"

ENT.PrintName           = "Artillery"
ENT.Purpose             = ""
ENT.Instructions        = ""

--important
ENT.UnitType            = "TURRET"

ENT.RepairTypes = {"ALL"}
ENT.BuildTypes = {"ALL"}
ENT.AttackTypes = {"ALL"}

ENT.Model = "models/Roller_Spikes.mdl"
ENT.LockAngles = true --doesnt propably work yet

ENT.HealthAmount = 400
ENT.RegenRate = 2
ENT.MoveSpeed = 0
ENT.SelfBuildRate = 0
ENT.BuildRate = 0

ENT.BuildDrain = ENT.BuildRate
ENT.RegenDrain = ENT.RegenRate
ENT.SelfBuildDrain = ENT.SelfBuildRate

ENT.ResourceStorage = 0
ENT.ResourceBalance = 0

ENT.LoopSound = "npc/scanner/combat_scan_loop2.wav"
ENT.LoopSoundVolume = 155
ENT.LoopSoundPitch = 50

ENT.SpotRange = 256
ENT.ShootRadius = 1024 --this is distance from boundarybox
ENT.ShootDelay = 9
ENT.ShootAccuracy = 100 --how precise shots are 1-100
ENT.ChaseDistance = ENT.ShootRadius*1.3 --this is distance from boundarybox
ENT.AllowChase = true

ENT.BulletNumber = 3 --for multiple shots like shotgun does
ENT.BulletSpread = 0.01 --basic spread of shots
ENT.BulletForce = 100
ENT.BulletDamage = 180
ENT.BulletEffect = "ToolTracer"
ENT.BulletSound = "weapons/smg1/smg1_fire1.wav"
ENT.BulletSoundVolume = 100
ENT.BulletSoundPitch = 100

ENT.MovingUnit = false
ENT.AttackingUnit = true
ENT.EngineeringUnit = false
ENT.HoveringUnit = true

function ENT:BulletShootAction(tr,dmginfo,hitpos)

end

function ENT:BulletHitUnit(tr,dmginfo,hitpos)

end

function ENT:OrderThink(currentorder)

end

function ENT:ShootOverride(enemy)
    local pitch = 60

    local gravity = GRAVITY or 700

    local entpos = self:GetPos()
    local tgtpos = enemy:GetPos()
    local differ0 = tgtpos-entpos
    local differ = differ0+self:Variation(differ0:Length())
    local verticaldiffer = Vector(0,0,differ.z)
    local horisontaldiffer = Vector(differ.x,differ.y,0)
    local RANGE = horisontaldiffer:Length()
    local HEIGHT = verticaldiffer:Length()
    local VECTOR0 = horisontaldiffer:Normalize()
    local VECTOR = (VECTOR0*math.cos(pitch)+Vector(0,0,1)*math.sin(pitch)):Normalize()
    --VECTOR:Rotate(Angle(0,pitch,0))
    --local ANGLE = VECTOR:Angle()


    local ent = ents.Create("shell")
    ent:SetModel("models/dav0r/hoverball.mdl")
    ent:Spawn()
    ent.Radius = self.BulletDamage*2
    ent.Damage = self.BulletDamage

    --print(VECTOR)
    local fix = Vector(0,0,1)*(self:BoundingRadius()+ent:BoundingRadius())
    ent:SetPos(entpos+fix)

    local velocity = math.sqrt(-gravity*RANGE*RANGE/(2*(HEIGHT-math.tan(pitch)*RANGE)*math.cos(pitch)*math.cos(pitch)))

    local entphys = ent:GetPhysicsObject();
    if entphys:IsValid() then
         entphys:Wake();
         entphys:SetVelocity(VECTOR*velocity*-1)
    end

    return true --return true to override
end

function ENT:PatrollingFriendlyUnit(friend)
    return true -- returning false will stop unit from chasing enemies closeby
end

ENT.HitEffect = "explosion"
ENT.HitEffectScale = ENT.BulletDamage

--[[FUNCTIONS:
CleanUnit(ENT) --basically removes owner by making unit neutral and resets other control things from unit
SetEntOwner(ENT,UserID) --change units owner

ENT:GetPhysicsObject():EnableGravity(true) --this is fun, looks like unit is paralyzed :3

VARIABLES:
ENT.OwnerID == UserID of owner, think of this as a team

HITEFFECTS:
explosion
implosion
select

TRACERS: --not sure if these even work :p
AirboatGunHeavyTracer
AirboatGunTracer
AR2Tracer
GaussTracer
GunshipTracer
StriderTracer
HelicopterTracer
ToolTracer
LaserTracer
]]