109 lines
2.9 KiB
C#
109 lines
2.9 KiB
C#
#region Copyright & License Information
|
|
/*
|
|
* Copyright 2007-2016 The OpenRA Developers (see AUTHORS)
|
|
* This file is part of OpenRA, which is free software. It is made
|
|
* available to you under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version. For more
|
|
* information, see COPYING.
|
|
*/
|
|
#endregion
|
|
|
|
using OpenRA.Activities;
|
|
using OpenRA.Mods.Common;
|
|
using OpenRA.Mods.Common.Activities;
|
|
using OpenRA.Mods.Common.Traits;
|
|
using OpenRA.Mods.D2k.Traits;
|
|
using OpenRA.Traits;
|
|
|
|
namespace OpenRA.Mods.D2k.Activities
|
|
{
|
|
public class PickupUnit : Activity
|
|
{
|
|
readonly Actor cargo;
|
|
readonly IMove movement;
|
|
readonly Carryable carryable;
|
|
readonly Carryall carryall;
|
|
readonly Aircraft aircraft;
|
|
readonly IFacing cargoFacing;
|
|
readonly IFacing selfFacing;
|
|
|
|
enum State { Intercept, LockCarryable, MoveToCarryable, Turn, Pickup, TakeOff }
|
|
|
|
State state;
|
|
|
|
public PickupUnit(Actor self, Actor cargo)
|
|
{
|
|
this.cargo = cargo;
|
|
carryable = cargo.Trait<Carryable>();
|
|
cargoFacing = cargo.Trait<IFacing>();
|
|
movement = self.Trait<IMove>();
|
|
carryall = self.Trait<Carryall>();
|
|
aircraft = self.Trait<Aircraft>();
|
|
selfFacing = self.Trait<IFacing>();
|
|
state = State.Intercept;
|
|
}
|
|
|
|
public override Activity Tick(Actor self)
|
|
{
|
|
if (cargo.IsDead || !carryall.IsBusy)
|
|
{
|
|
carryall.UnreserveCarryable();
|
|
return NextActivity;
|
|
}
|
|
|
|
switch (state)
|
|
{
|
|
case State.Intercept:
|
|
state = State.LockCarryable;
|
|
return ActivityUtils.SequenceActivities(movement.MoveWithinRange(Target.FromActor(cargo), WDist.FromCells(4)), this);
|
|
|
|
case State.LockCarryable:
|
|
// Last check
|
|
if (carryable.StandbyForPickup(self))
|
|
{
|
|
state = State.MoveToCarryable;
|
|
return this;
|
|
}
|
|
|
|
// We got cancelled
|
|
carryall.UnreserveCarryable();
|
|
return NextActivity;
|
|
|
|
case State.MoveToCarryable: // We arrived, move on top
|
|
if (self.Location == cargo.Location)
|
|
{
|
|
state = State.Turn;
|
|
return this;
|
|
}
|
|
|
|
return ActivityUtils.SequenceActivities(movement.MoveTo(cargo.Location, 0), this);
|
|
|
|
case State.Turn: // Align facing and Land
|
|
if (selfFacing.Facing != cargoFacing.Facing)
|
|
return ActivityUtils.SequenceActivities(new Turn(self, cargoFacing.Facing), this);
|
|
state = State.Pickup;
|
|
return ActivityUtils.SequenceActivities(new HeliLand(self, false), new Wait(10), this);
|
|
|
|
case State.Pickup:
|
|
// Remove our carryable from world
|
|
self.World.AddFrameEndTask(w => cargo.World.Remove(cargo));
|
|
carryall.AttachCarryable(cargo);
|
|
state = State.TakeOff;
|
|
return this;
|
|
case State.TakeOff:
|
|
if (HeliFly.AdjustAltitude(self, aircraft, aircraft.Info.CruiseAltitude))
|
|
return this;
|
|
return NextActivity;
|
|
}
|
|
|
|
return NextActivity;
|
|
}
|
|
|
|
public override void Cancel(Actor self)
|
|
{
|
|
// TODO: Drop the unit at the nearest available cell
|
|
}
|
|
}
|
|
}
|