Onslaught.ONSAVRiLAltFire

// AVRiL alternate fire. Slight zoom and auto-tracking of target
class ONSAVRiLAltFire extends WeaponFire;

var ONSAVRiL Gun;
var float ZoomLevel;
var bool bWaitingForRelease;
var bool bLosingLock;
var float LostLockTime;

function PostBeginPlay()
{
    Super.PostBeginPlay();

    Gun = ONSAVRiL(Weapon);
}

simulated function bool AllowFire()
{
    //return (Gun != None && Gun.bLockedOn && PlayerController(Instigator.Controller) != None);
    if (bWaitingForRelease || Gun == None || !Gun.bLockedOn || PlayerController(Instigator.Controller) == None)
    {
        bWaitingForRelease = true;
        return false;
    }
    else
        return true;

}

function StopFiring()
{
    if (PlayerController(Instigator.Controller) != None)
    {
        ZoomLevel = 0.0;
        PlayerController(Instigator.Controller).DesiredFOV = PlayerController(Instigator.Controller).DefaultFOV;
        bLosingLock = false;
    }
}

function PlayFiring() {}

function ModeTick(float deltaTime)
{
    local vector LockTrace;
    local Actor AlternateTarget;

    //Hack - force player to actually press button to start fire (so can't hold down button and sweep crosshair in the vicinity of targets)
    if (bWaitingForRelease && PlayerController(Instigator.Controller).bAltFire == 0)
        bWaitingForRelease = false;

    if (!bIsFiring)
        return;

    if (!Gun.bLockedOn || Gun.HomingTarget == None)
    {
        if (!bLosingLock)
        {
            bLosingLock = true;
            LostLockTime = Level.TimeSeconds;
            if (Instigator.IsLocallyControlled())
                Instigator.PlaySound(Sound'WeaponSounds.BSeekLost1');
        }
        else if (Level.TimeSeconds > LostLockTime + 1.5)
        {
            Gun.StopFire(1);
            return;
        }
    }
    else if (bLosingLock)
        bLosingLock = false;

    //Custom zooming because we don't want quite as much as normal sniper zoom does
    ZoomLevel += deltaTime;
    if (ZoomLevel > 0.60)
        ZoomLevel = 0.60;
    PlayerController(Instigator.Controller).DesiredFOV = FClamp(90.0 - (ZoomLevel * 88.0), 1, 170);

    if (!bLosingLock && Instigator.IsLocallyControlled())
    {
        // Are we aimed at the HomingTarget or an AlternateTarget...
        AlternateTarget = Gun.HomingTarget.AlternateTarget();
        if (AlternateTarget != None)
        {
            LockTrace = AlternateTarget.Location - (Instigator.Location + Instigator.EyePosition());

            if ((Normal(LockTrace) dot Vector(Instigator.GetViewRotation())) > Gun.LockAim && VSize(LockTrace) < Gun.MaxLockRange)
            {
                Instigator.Controller.SetRotation(rotator(AlternateTarget.Location - Instigator.Location));
                return;
            }
        }
        Instigator.Controller.SetRotation(rotator(Gun.HomingTarget.Location - Instigator.Location));
    }
}

defaultproperties
{
     bModeExclusive=False
     FireRate=0.100000
}