public static float2 GetTurretPosition(Actor self, Unit unit, int[] offset, float recoil)
{
if( unit == null ) return int2.Zero; /* things that don't have a rotating base don't need the turrets repositioned */
var ru = self.traits.GetOrDefault<RenderUnit>();
var numDirs = (ru != null) ? ru.anim.CurrentSequence.Facings : 8;
var bodyFacing = unit.Facing;
var quantizedFacing = QuantizeFacing(bodyFacing, numDirs) * (256 / numDirs);
return (RotateVectorByFacing(offset.RelOffset(), quantizedFacing, .7f) + GetRecoil(self, recoil))
+ offset.AbsOffset();
}
bool CheckFire(Actor self, Unit unit, string weaponName, ref int fireDelay, int[] offset, ref int burst, int[] localOffset)
{
if (fireDelay > 0) return false;
var limitedAmmo = self.traits.GetOrDefault<LimitedAmmo>();
if (limitedAmmo != null && !limitedAmmo.HasAmmo())
return false;
var weapon = Rules.Weapons[weaponName.ToLowerInvariant()];
if (weapon.Range * weapon.Range < (target.Location - self.Location).LengthSquared) return false;
if (!Combat.WeaponValidForTarget(weapon, target)) return false;
var numOffsets = (localOffset.Length + 2) / 3;
if (numOffsets == 0) numOffsets = 1;
var localOffsetForShot = burst % numOffsets;
var thisLocalOffset = localOffset.Skip(3 * localOffsetForShot).Take(3).ToArray();
var fireOffset = new[] {
offset.ElementAtOrDefault(0) + thisLocalOffset.ElementAtOrDefault(0),
offset.ElementAtOrDefault(1) + thisLocalOffset.ElementAtOrDefault(1),
offset.ElementAtOrDefault(2),
offset.ElementAtOrDefault(3) };
if (--burst > 0)
fireDelay = 5;
else
{
fireDelay = weapon.ROF;
burst = weapon.Burst;
}
var destUnit = target.traits.GetOrDefault<Unit>();
var args = new ProjectileArgs
{
weapon = Rules.Weapons[weaponName.ToLowerInvariant()],
firedBy = self,
target = target,
src = self.CenterLocation.ToInt2() + Util.GetTurretPosition(self, unit, fireOffset, 0f).ToInt2(),
srcAltitude = unit != null ? unit.Altitude : 0,
dest = target.CenterLocation.ToInt2(),
destAltitude = destUnit != null ? destUnit.Altitude : 0,
facing = thisLocalOffset.ElementAtOrDefault(2) +
(self.traits.Contains<Turreted>() ? self.traits.Get<Turreted>().turretFacing :
unit != null ? unit.Facing : Util.GetFacing(target.CenterLocation - self.CenterLocation, 0)),
};
ScheduleDelayedAction( FireDelay( self, self.Info.Traits.Get<AttackBaseInfo>() ), () =>
{
var projectile = args.weapon.Projectile.Create(args);
if (projectile != null)
self.World.Add(projectile);
if (!string.IsNullOrEmpty(args.weapon.Report))
Sound.Play(args.weapon.Report + ".aud");
});
foreach (var na in self.traits.WithInterface<INotifyAttack>())
na.Attacking(self);
return true;
}