Toastur's Crossing [Gmod E2]

@name Toastur's Crossing
@inputs Lower GateProp:entity
@persist GateAng Sound:string
@model models/trakpak/misc/crossbuck2.mdl

Gate = 1 #0 is no gate, 1 is it has a gate.
Sound = "ambient/railroad_bells.wav"

if(first() | duped()| ~GateProp){


    holoCreate(0)
    holoScale(0,vec(0))
    holoParent(0, entity())


    A = 1
    holoCreate(A, entity():toWorld(vec(0,0,0)), vec(1),
    entity():toWorld(ang(0,0,-75)))
    holoColor(A, vec4(255,255,255,Gate*255))
    holoModel(A, "models/trakpak/misc/crossbuck_gate.mdl")
    holoScale(A, vec(1,1,1))
    holoParent(A, 0)
    holoMaterial(A,"")
    GateProp:setAng(holoEntity(1):toWorld(ang()))
    GateProp:setPos(holoEntity(1):toWorld(vec()))
    GateProp:propFreeze(1)
}
    function number gateClk() {
    return (GateAng != Lower)
    }

if(gateClk()){
    interval(100)
    if(clk()){
        if(GateAng != Lower) {
            GateAng += GateAng > Lower ? -0.05 : 0.05
            GateAng = clamp(GateAng, 0, 1)
            holoAng(0,entity():toWorld(ang(0,0,0+GateAng*75)))
            GateProp:setAng(holoEntity(1):toWorld(ang()))
        }
    }

}
if(~Lower & Lower){
soundPlay(0,0,Sound)
entity():setSkin(1)
}elseif(~Lower & !Lower){
soundStop(0)
entity():setSkin(0)
}