aef65d353d
Teach HierarchicalPathFinder to keep a cache of domain indices, refreshing them only on demand and when invalidated by terrain changes. This provides an accurate and quick determination for checking if paths exist between given locations. By exposing PathExistsForLocomotor on the IPathFinder interface, we can remove the DomainIndex trait entirely.
98 lines
3.2 KiB
C#
98 lines
3.2 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2022 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 OpenRA.Graphics;
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using OpenRA.Mods.Common.Pathfinder;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common.Traits
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{
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[TraitLocation(SystemActors.World)]
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public class ElevatedBridgeLayerInfo : TraitInfo, ILobbyCustomRulesIgnore, ICustomMovementLayerInfo
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{
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[Desc("Terrain type used by cells outside any elevated bridge footprint.")]
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public readonly string ImpassableTerrainType = "Impassable";
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public override object Create(ActorInitializer init) { return new ElevatedBridgeLayer(init.Self, this); }
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}
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// For now this is mostly copies TerrainTunnelLayer. This will change once bridge destruction is implemented
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public class ElevatedBridgeLayer : ICustomMovementLayer, IWorldLoaded
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{
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readonly Map map;
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readonly CellLayer<WPos> cellCenters;
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readonly CellLayer<byte> terrainIndices;
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readonly HashSet<CPos> ends = new HashSet<CPos>();
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bool enabled;
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public ElevatedBridgeLayer(Actor self, ElevatedBridgeLayerInfo info)
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{
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map = self.World.Map;
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cellCenters = new CellLayer<WPos>(map);
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terrainIndices = new CellLayer<byte>(map);
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terrainIndices.Clear(map.Rules.TerrainInfo.GetTerrainIndex(info.ImpassableTerrainType));
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}
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public void WorldLoaded(World world, WorldRenderer wr)
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{
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var cellHeight = world.Map.CellHeightStep.Length;
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foreach (var tti in world.WorldActor.Info.TraitInfos<ElevatedBridgePlaceholderInfo>())
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{
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enabled = true;
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var terrain = map.Rules.TerrainInfo.GetTerrainIndex(tti.TerrainType);
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foreach (var c in tti.BridgeCells())
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{
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var uv = c.ToMPos(map);
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terrainIndices[uv] = terrain;
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var pos = map.CenterOfCell(c);
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cellCenters[uv] = pos - new WVec(0, 0, pos.Z - cellHeight * tti.Height);
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}
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var end = tti.EndCells();
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foreach (var c in end)
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{
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// Need to explicitly set both default and tunnel layers, otherwise the .Contains check will fail
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ends.Add(new CPos(c.X, c.Y, 0));
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ends.Add(new CPos(c.X, c.Y, CustomMovementLayerType.ElevatedBridge));
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}
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}
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}
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bool ICustomMovementLayer.EnabledForLocomotor(LocomotorInfo li) { return enabled; }
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byte ICustomMovementLayer.Index => CustomMovementLayerType.ElevatedBridge;
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bool ICustomMovementLayer.InteractsWithDefaultLayer => true;
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bool ICustomMovementLayer.ReturnToGroundLayerOnIdle => false;
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WPos ICustomMovementLayer.CenterOfCell(CPos cell)
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{
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return cellCenters[cell];
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}
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short ICustomMovementLayer.EntryMovementCost(LocomotorInfo li, CPos cell)
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{
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return ends.Contains(cell) ? (short)0 : PathGraph.MovementCostForUnreachableCell;
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}
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short ICustomMovementLayer.ExitMovementCost(LocomotorInfo li, CPos cell)
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{
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return ends.Contains(cell) ? (short)0 : PathGraph.MovementCostForUnreachableCell;
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}
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byte ICustomMovementLayer.GetTerrainIndex(CPos cell)
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{
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return terrainIndices[cell];
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}
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}
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}
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