1 #region Copyright & License Information 2 /* 3 * Copyright 2007-2020 The OpenRA Developers (see AUTHORS) 4 * This file is part of OpenRA, which is free software. It is made 5 * available to you under the terms of the GNU General Public License 6 * as published by the Free Software Foundation, either version 3 of 7 * the License, or (at your option) any later version. For more 8 * information, see COPYING. 9 */ 10 #endregion 11 12 using System.Collections.Generic; 13 using OpenRA.Graphics; 14 using OpenRA.Traits; 15 16 namespace OpenRA.Mods.Common.Traits 17 { 18 public class ElevatedBridgeLayerInfo : ITraitInfo, Requires<DomainIndexInfo>, ILobbyCustomRulesIgnore 19 { 20 [Desc("Terrain type used by cells outside any elevated bridge footprint.")] 21 public readonly string ImpassableTerrainType = "Impassable"; 22 Create(ActorInitializer init)23 public object Create(ActorInitializer init) { return new ElevatedBridgeLayer(init.Self, this); } 24 } 25 26 // For now this is mostly copies TerrainTunnelLayer. This will change once bridge destruction is implemented 27 public class ElevatedBridgeLayer : ICustomMovementLayer, IWorldLoaded 28 { 29 readonly Map map; 30 readonly CellLayer<WPos> cellCenters; 31 readonly CellLayer<byte> terrainIndices; 32 readonly HashSet<CPos> ends = new HashSet<CPos>(); 33 bool enabled; 34 ElevatedBridgeLayer(Actor self, ElevatedBridgeLayerInfo info)35 public ElevatedBridgeLayer(Actor self, ElevatedBridgeLayerInfo info) 36 { 37 map = self.World.Map; 38 cellCenters = new CellLayer<WPos>(map); 39 terrainIndices = new CellLayer<byte>(map); 40 terrainIndices.Clear(map.Rules.TileSet.GetTerrainIndex(info.ImpassableTerrainType)); 41 } 42 WorldLoaded(World world, WorldRenderer wr)43 public void WorldLoaded(World world, WorldRenderer wr) 44 { 45 var domainIndex = world.WorldActor.Trait<DomainIndex>(); 46 var cellHeight = world.Map.CellHeightStep.Length; 47 foreach (var tti in world.WorldActor.Info.TraitInfos<ElevatedBridgePlaceholderInfo>()) 48 { 49 enabled = true; 50 51 var terrain = map.Rules.TileSet.GetTerrainIndex(tti.TerrainType); 52 foreach (var c in tti.BridgeCells()) 53 { 54 var uv = c.ToMPos(map); 55 terrainIndices[uv] = terrain; 56 57 var pos = map.CenterOfCell(c); 58 cellCenters[uv] = pos - new WVec(0, 0, pos.Z - cellHeight * tti.Height); 59 } 60 61 var end = tti.EndCells(); 62 domainIndex.AddFixedConnection(end); 63 foreach (var c in end) 64 { 65 // Need to explicitly set both default and tunnel layers, otherwise the .Contains check will fail 66 ends.Add(new CPos(c.X, c.Y, 0)); 67 ends.Add(new CPos(c.X, c.Y, CustomMovementLayerType.ElevatedBridge)); 68 } 69 } 70 } 71 ICustomMovementLayer.EnabledForActor(ActorInfo a, LocomotorInfo li)72 bool ICustomMovementLayer.EnabledForActor(ActorInfo a, LocomotorInfo li) { return enabled; } 73 byte ICustomMovementLayer.Index { get { return CustomMovementLayerType.ElevatedBridge; } } 74 bool ICustomMovementLayer.InteractsWithDefaultLayer { get { return true; } } 75 bool ICustomMovementLayer.ReturnToGroundLayerOnIdle { get { return false; } } 76 ICustomMovementLayer.CenterOfCell(CPos cell)77 WPos ICustomMovementLayer.CenterOfCell(CPos cell) 78 { 79 return cellCenters[cell]; 80 } 81 ICustomMovementLayer.EntryMovementCost(ActorInfo a, LocomotorInfo li, CPos cell)82 int ICustomMovementLayer.EntryMovementCost(ActorInfo a, LocomotorInfo li, CPos cell) 83 { 84 return ends.Contains(cell) ? 0 : int.MaxValue; 85 } 86 ICustomMovementLayer.ExitMovementCost(ActorInfo a, LocomotorInfo li, CPos cell)87 int ICustomMovementLayer.ExitMovementCost(ActorInfo a, LocomotorInfo li, CPos cell) 88 { 89 return ends.Contains(cell) ? 0 : int.MaxValue; 90 } 91 ICustomMovementLayer.GetTerrainIndex(CPos cell)92 byte ICustomMovementLayer.GetTerrainIndex(CPos cell) 93 { 94 return terrainIndices[cell]; 95 } 96 } 97 } 98