Code

// Based on Zombie Torrent's casings code (I don't know who made the code for those casings)

Actor S7_CasingSpawnerBase {
    Speed 20
    Projectile
    +NoClip +ClientsideOnly
}

Actor S7_CasingBase {
    Speed 6
    +DoomBounce -NoGravity +WindThrust +ClientsideOnly
    +MoveWithSector +Missile +NoBlockmap -DropOff
    +NoTeleport +ForceXYBillboard +NotDMatch +Ghost
}

// Shotgun Casing
Actor S7_ShellCasingSpawn : S7_CasingSpawnerBase {
    States {
    Spawn:
        TNT1 A 0
        TNT1 A 0 A_CustomMissile ("S7_ShotgunCasing", 0, 0, random (-80, -100), 2, random (-40, -60))
        Stop
    }
}

Actor S7_ShotgunCasing : S7_CasingBase {
    Height 12
    Radius 9
    SeeSound "Weapons/Shell"
    States {
    Spawn:
        TNT1 A 0
        CAS1 ABCDEFGH 2 A_SpawnItem ("S7_ShotSmokeTrail")
        Loop
    Death:
        CAS1 A 0 A_Jump (256, "Rest1", "Rest2", "Rest3", "Rest4", "Rest5", "Rest6", "Rest7", "Rest8")
        Goto Rest1
    Rest1:
        CAS1 A 1000
        Goto Fade
    Rest2:
        CAS1 B 1000
        Goto Fade
    Rest3:
        CAS1 C 1000
        Goto Fade
    Rest4:
        CAS1 D 1000
        Goto Fade
    Rest5:
        CAS1 E 1000
        Goto Fade
    Rest6:
        CAS1 F 1000
        Goto Fade
    Rest7:
        CAS1 G 1000
        Goto Fade
    Rest8:
        CAS1 H 1000
        Goto Fade
    Fade:
        "----" A 3 A_FadeOut (0.03)
        Loop
    }
}