108 lines
3.2 KiB
C#
108 lines
3.2 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.Drawing;
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using System.Linq;
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using OpenRA.Activities;
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using OpenRA.Mods.Cnc.Traits;
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using OpenRA.Mods.Common.Activities;
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using OpenRA.Mods.Common.Traits;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Cnc.Activities
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{
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public class LeapAttack : Activity
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{
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readonly Target target;
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readonly AttackLeapInfo info;
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readonly AttackLeap attack;
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readonly Mobile mobile, targetMobile;
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readonly EdibleByLeap edible;
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readonly bool allowMovement;
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readonly IFacing facing;
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public LeapAttack(Actor self, Target target, bool allowMovement, AttackLeap attack, AttackLeapInfo info)
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{
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this.target = target;
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this.info = info;
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this.attack = attack;
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this.allowMovement = allowMovement;
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mobile = self.Trait<Mobile>();
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facing = self.TraitOrDefault<IFacing>();
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if (target.Type == TargetType.Actor)
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{
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targetMobile = target.Actor.TraitOrDefault<Mobile>();
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edible = target.Actor.TraitOrDefault<EdibleByLeap>();
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}
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}
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protected override void OnFirstRun(Actor self)
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{
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attack.IsAiming = true;
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}
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public override Activity Tick(Actor self)
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{
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if (IsCanceled || edible == null)
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return NextActivity;
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// Run this even if the target became invalid to avoid visual glitches
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if (ChildActivity != null)
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{
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ChildActivity = ActivityUtils.RunActivity(self, ChildActivity);
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return this;
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}
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if (target.Type != TargetType.Actor || !edible.CanLeap(self) || !target.IsValidFor(self) || !attack.HasAnyValidWeapons(target))
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return NextActivity;
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var minRange = attack.GetMinimumRangeVersusTarget(target);
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var maxRange = attack.GetMaximumRangeVersusTarget(target);
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if (!target.IsInRange(self.CenterPosition, maxRange) || target.IsInRange(self.CenterPosition, minRange))
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{
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if (!allowMovement)
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return NextActivity;
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QueueChild(mobile.MoveWithinRange(target, minRange, maxRange, targetLineColor: Color.Red));
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return this;
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}
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if (attack.Armaments.All(a => a.IsReloading))
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return this;
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// Use CenterOfSubCell with ToSubCell instead of target.Centerposition
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// to avoid continuous facing adjustments as the target moves
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var targetSubcell = targetMobile != null ? targetMobile.ToSubCell : SubCell.Any;
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var destination = self.World.Map.CenterOfSubCell(target.Actor.Location, targetSubcell);
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var origin = self.World.Map.CenterOfSubCell(self.Location, mobile.FromSubCell);
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var desiredFacing = (destination - origin).Yaw.Facing;
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if (facing != null && facing.Facing != desiredFacing)
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{
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QueueChild(new Turn(self, desiredFacing));
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return this;
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}
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QueueChild(new Leap(self, target, mobile, targetMobile, info.Speed.Length, attack, edible));
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// Re-queue the child activities to kill the target if it didn't die in one go
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return this;
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}
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protected override void OnLastRun(Actor self)
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{
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attack.IsAiming = false;
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}
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}
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}
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