63 lines
1.8 KiB
C#
63 lines
1.8 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2017 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 OpenRA.Activities;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common.Traits
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{
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[Desc("Unit got to face the target")]
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public class AttackFrontalInfo : AttackBaseInfo, Requires<IFacingInfo>
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{
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public readonly int FacingTolerance = 0;
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public override void RulesetLoaded(Ruleset rules, ActorInfo ai)
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{
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if (FacingTolerance < 0 || FacingTolerance > 128)
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throw new YamlException("Facing tolerance must be in range of [0, 128], 128 covers 360 degrees.");
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}
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public override object Create(ActorInitializer init) { return new AttackFrontal(init.Self, this); }
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}
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public class AttackFrontal : AttackBase
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{
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readonly AttackFrontalInfo info;
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public AttackFrontal(Actor self, AttackFrontalInfo info)
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: base(self, info)
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{
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this.info = info;
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}
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protected override bool CanAttack(Actor self, Target target)
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{
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if (!base.CanAttack(self, target))
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return false;
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var pos = self.CenterPosition;
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var targetedPosition = GetTargetPosition(pos, target);
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var delta = targetedPosition - pos;
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if (delta.HorizontalLengthSquared == 0)
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return true;
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return Util.FacingWithinTolerance(facing.Facing, delta.Yaw.Facing, info.FacingTolerance);
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}
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public override Activity GetAttackActivity(Actor self, Target newTarget, bool allowMove, bool forceAttack)
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{
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return new Activities.Attack(self, newTarget, allowMove, forceAttack, info.FacingTolerance);
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}
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}
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}
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