102 lines
3.3 KiB
C#
102 lines
3.3 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;
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using System.Collections.Generic;
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using OpenRA.Activities;
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using OpenRA.Mods.Common.Traits;
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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 AttackMoveActivity : Activity
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{
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readonly Func<Activity> getInner;
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readonly bool isAssaultMove;
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AutoTarget autoTarget;
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ConditionManager conditionManager;
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AttackMove attackMove;
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int token = ConditionManager.InvalidConditionToken;
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public AttackMoveActivity(Actor self, Func<Activity> getInner, bool assaultMoving = false)
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{
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this.getInner = getInner;
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autoTarget = self.TraitOrDefault<AutoTarget>();
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conditionManager = self.TraitOrDefault<ConditionManager>();
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attackMove = self.TraitOrDefault<AttackMove>();
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isAssaultMove = assaultMoving;
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}
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protected override void OnFirstRun(Actor self)
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{
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// Start moving.
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QueueChild(self, getInner());
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if (conditionManager == null || attackMove == null)
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return;
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if (!isAssaultMove && !string.IsNullOrEmpty(attackMove.Info.AttackMoveCondition))
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token = conditionManager.GrantCondition(self, attackMove.Info.AttackMoveCondition);
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else if (isAssaultMove && !string.IsNullOrEmpty(attackMove.Info.AssaultMoveCondition))
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token = conditionManager.GrantCondition(self, attackMove.Info.AssaultMoveCondition);
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}
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public override Activity Tick(Actor self)
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{
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// We are not currently attacking a target, so scan for new targets.
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if (!IsCanceling && ChildActivity != null && ChildActivity.NextActivity == null && autoTarget != null)
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{
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// ScanForTarget already limits the scanning rate for performance so we don't need to do that here.
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var target = autoTarget.ScanForTarget(self, true, true);
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if (target.Type != TargetType.Invalid)
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{
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// We have found a target so cancel the current move activity and queue attack activities.
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ChildActivity.Cancel(self);
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var attackBases = autoTarget.ActiveAttackBases;
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foreach (var ab in attackBases)
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{
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QueueChild(self, ab.GetAttackActivity(self, target, true, false));
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ab.OnQueueAttackActivity(self, target, false, true, false);
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}
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// Make sure to continue moving when the attack activities have finished.
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QueueChild(self, getInner());
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}
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}
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if (ChildActivity != null)
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{
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ChildActivity = ActivityUtils.RunActivity(self, ChildActivity);
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if (ChildActivity != null)
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return this;
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}
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// The last queued childactivity is guaranteed to be the inner move, so if we get here it means
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// we have reached our destination and there are no more enemies on our path.
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return NextActivity;
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}
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protected override void OnLastRun(Actor self)
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{
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if (conditionManager != null && token != ConditionManager.InvalidConditionToken)
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token = conditionManager.RevokeCondition(self, token);
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}
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public override IEnumerable<Target> GetTargets(Actor self)
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{
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if (ChildActivity != null)
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return ChildActivity.GetTargets(self);
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return Target.None;
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}
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}
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}
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