ad683d9226
No functional changes to `MoveWithinRange` nor `MoveAdjacentTo`. I've just moved around code to for allow better overwriting.
76 lines
2.6 KiB
C#
76 lines
2.6 KiB
C#
#region Copyright & License Information
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/*
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* Copyright (c) The OpenRA Developers and Contributors
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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 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 MoveWithinRange : MoveAdjacentTo
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{
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readonly WDist maxRange;
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readonly WDist minRange;
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readonly Map map;
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readonly int maxCells;
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readonly int minCells;
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public MoveWithinRange(Actor self, in Target target, WDist minRange, WDist maxRange,
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WPos? initialTargetPosition = null, Color? targetLineColor = null)
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: base(self, target, initialTargetPosition, targetLineColor)
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{
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this.minRange = minRange;
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this.maxRange = maxRange;
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map = self.World.Map;
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maxCells = (maxRange.Length + 1023) / 1024;
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minCells = minRange.Length / 1024;
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}
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protected override bool ShouldStop(Actor self)
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{
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// We are now in range. Don't move any further!
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// HACK: This works around the pathfinder not returning the shortest path
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return AtCorrectRange(self.CenterPosition) && Mobile.CanInteractWithGroundLayer(self) && Mobile.CanStayInCell(self.Location);
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}
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protected override bool ShouldRepath(Actor self, CPos targetLocation)
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{
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return lastVisibleTargetLocation != targetLocation && (!AtCorrectRange(self.CenterPosition)
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|| !Mobile.CanInteractWithGroundLayer(self) || !Mobile.CanStayInCell(self.Location));
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}
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protected override List<CPos> CalculatePathToTarget(Actor self, BlockedByActor check)
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{
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// PERF: Assume that candidate cells don't change within a tick to avoid repeated queries
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// when Move enumerates different BlockedByActor values.
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if (searchCellsTick != self.World.WorldTick)
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{
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SearchCells.Clear();
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searchCellsTick = self.World.WorldTick;
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foreach (var cell in map.FindTilesInAnnulus(lastVisibleTargetLocation, minCells, maxCells))
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if (Mobile.CanStayInCell(cell) && Mobile.CanEnterCell(cell) && AtCorrectRange(map.CenterOfSubCell(cell, Mobile.FromSubCell)))
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SearchCells.Add(cell);
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}
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if (SearchCells.Count == 0)
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return PathFinder.NoPath;
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return Mobile.PathFinder.FindPathToTargetCells(self, self.Location, SearchCells, check);
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}
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bool AtCorrectRange(WPos origin)
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{
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return Target.IsInRange(origin, maxRange) && !Target.IsInRange(origin, minRange);
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}
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}
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}
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