2583a7af31
Requires<T> means that trait of type T will be initialized first, and asserts that at least one exists. The new NotBefore<T> means that trait of type T will be initialized first, but allows no traits. This allows traits to control initialization order for optional dependencies. They want to be initialized second so they can rely on the dependencies having been initialized. But if the dependencies are optional then to not throw if none are present. We apply this to Locomotor which was previously using AddFrameEndTask to work around trait order initialization. This improves the user experience as the initialization is applied whilst the loading screen is still visible, rather than the game starting and creating jank by performing initialization on the first tick.
100 lines
3.3 KiB
C#
100 lines
3.3 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2021 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, Requires<DomainIndexInfo>, 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 domainIndex = world.WorldActor.Trait<DomainIndex>();
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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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domainIndex.AddFixedConnection(end);
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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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