116 lines
3.1 KiB
C#
116 lines
3.1 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2019 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System.Collections.Generic;
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using System.Linq;
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using OpenRA.Activities;
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using OpenRA.Mods.Common.Traits;
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using OpenRA.Primitives;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common.Activities
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{
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public class HarvestResource : Activity
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{
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readonly Harvester harv;
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readonly HarvesterInfo harvInfo;
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readonly IFacing facing;
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readonly ResourceClaimLayer claimLayer;
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readonly ResourceLayer resLayer;
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readonly BodyOrientation body;
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readonly IMove move;
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readonly CPos targetCell;
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readonly INotifyHarvesterAction[] notifyHarvesterActions;
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public HarvestResource(Actor self, CPos targetCell)
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{
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harv = self.Trait<Harvester>();
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harvInfo = self.Info.TraitInfo<HarvesterInfo>();
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facing = self.Trait<IFacing>();
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body = self.Trait<BodyOrientation>();
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move = self.Trait<IMove>();
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claimLayer = self.World.WorldActor.Trait<ResourceClaimLayer>();
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resLayer = self.World.WorldActor.Trait<ResourceLayer>();
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this.targetCell = targetCell;
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notifyHarvesterActions = self.TraitsImplementing<INotifyHarvesterAction>().ToArray();
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}
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protected override void OnFirstRun(Actor self)
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{
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// We can safely assume the claim is successful, since this is only called in the
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// same actor-tick as the targetCell is selected. Therefore no other harvester
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// would have been able to claim.
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claimLayer.TryClaimCell(self, targetCell);
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}
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public override bool Tick(Actor self)
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{
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if (IsCanceling || harv.IsFull)
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return true;
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// Move towards the target cell
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if (self.Location != targetCell)
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{
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foreach (var n in notifyHarvesterActions)
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n.MovingToResources(self, targetCell);
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QueueChild(move.MoveTo(targetCell, 0));
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return false;
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}
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if (!harv.CanHarvestCell(self, self.Location))
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return true;
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// Turn to one of the harvestable facings
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if (harvInfo.HarvestFacings != 0)
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{
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var current = facing.Facing;
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var desired = body.QuantizeFacing(current, harvInfo.HarvestFacings);
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if (desired != current)
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{
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QueueChild(new Turn(self, desired));
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return false;
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}
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}
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var resource = resLayer.Harvest(self.Location);
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if (resource == null)
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return true;
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harv.AcceptResource(self, resource);
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foreach (var t in notifyHarvesterActions)
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t.Harvested(self, resource);
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QueueChild(new Wait(harvInfo.BaleLoadDelay));
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return false;
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}
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protected override void OnLastRun(Actor self)
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{
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claimLayer.RemoveClaim(self);
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}
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public override void Cancel(Actor self, bool keepQueue = false)
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{
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foreach (var n in notifyHarvesterActions)
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n.MovementCancelled(self);
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base.Cancel(self, keepQueue);
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}
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public override IEnumerable<TargetLineNode> TargetLineNodes(Actor self)
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{
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yield return new TargetLineNode(Target.FromCell(self.World, targetCell), Color.Green);
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}
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}
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}
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