E2 does not recognize local variables inside events defined outside of them when included in another file

[unknao]

I ran into a problem where an e2 that when isn't included works fine without warnings, but when included in a seperate e2 gives a nonsensical error.

The e2 in question:

The error when the file is included:

[unknao]

Here is the code in text form:

@inputs A D
@inputs [FL_Wheel #[Front left wheel slave]# FR_Wheel #[Front right wheel slave]# R_Wheel #[Rear wheel slave]# Base]:entity
@inputs Base2:entity #[Slave for rear wheels, if not using live axle suspension, wire the same as the base]#
@outputs Curve
@strict

Steering_Max = 35 #Maximum steering angle
Steering_Rate = 0.1 #How fast the steering angle changes
Steering_Rate_Max = 2.2 #Upper bound of how fast the steering angle can change

Gyro = 0
Gyro_Mul = 0

Wheel_Track = 83.007 #Distance between the wheels lengthwise
Wheel_Width = 68.125 / 2 #Distance between the wheels widthwise divided by 2

let Curve_Target = 90
Curve = 90

let N = Wheel_Track * tan(Curve)
let L = atan(Wheel_Track / (N - Wheel_Width))
let R = atan(Wheel_Track / (N + Wheel_Width))
let TickAdjust = 66 * tickInterval()

event tick(){
    Curve_Target = 90 - clamp((A - D) * Steering_Max + Gyro * Gyro_Mul, -Steering_Max, Steering_Max)
    if(Curve_Target != Curve){
        Curve += clamp((Curve_Target - Curve) * Steering_Rate, -Steering_Rate_Max, Steering_Rate_Max) * TickAdjust
        
        N = Wheel_Track * tan(Curve)
        L = atan(Wheel_Track / (N - Wheel_Width))
        R = atan(Wheel_Track / (N + Wheel_Width))
    }
    
    if(->FL_Wheel & !FL_Wheel:isPlayerHolding()){
        if(!FL_Wheel:isFrozen()){
            FL_Wheel:propFreeze(1)
        }
        FL_Wheel:setAng(Base:toWorld(ang(0, L, 0)))
    }    
    
    if(->FR_Wheel & !FR_Wheel:isPlayerHolding()){
        if(!FR_Wheel:isFrozen()){
            FR_Wheel:propFreeze(1)
        }
        FR_Wheel:setAng(Base:toWorld(ang(0, R, 0)))
    }    
    
    if(->R_Wheel & !R_Wheel:isPlayerHolding()){
        if(!R_Wheel:isFrozen()){
            R_Wheel:propFreeze(1)
        }
        R_Wheel:setAng(Base2:toWorld(ang()))
    }
}

[unknao]

A friend of mine experimented with this bug and seems to have found the culprit of the error:

@outputs Curve
let TickAdjust=10
event tick(){
    Curve += TickAdjust    
}

and

let TickAdjust=10
event tick(){
    TickAdjust++
}

seem to produce the same error.

[Fasteroid]

Might need to persist it. This looks more like a programmer error waiting to happen than an actual problem with E2 as a language, but the fact it errors in one place and not another is pretty stupid.

[Vurv78]

It's mostly that locals aren't supposed to be accessed from events and it's kind of a hack that they're considered global if you do them at the top level. That assumption gets broken inside includes where the top level variables are no longer globals (pushed to level 1 so they don't interfere with the main script)

[unknao]

E2cels stay losing 😔