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.
109 lines
3.4 KiB
C#
109 lines
3.4 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.Linq;
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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 JumpjetActorLayerInfo : TraitInfo, ICustomMovementLayerInfo
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{
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[Desc("Terrain type of the airborne layer.")]
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public readonly string TerrainType = "Jumpjet";
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[Desc("Height offset relative to the smoothed terrain for movement.")]
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public readonly WDist HeightOffset = new WDist(3992);
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[Desc("Cell radius for smoothing adjacent cell heights.")]
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public readonly int SmoothingRadius = 2;
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public override object Create(ActorInitializer init) { return new JumpjetActorLayer(init.Self, this); }
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}
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public class JumpjetActorLayer : ICustomMovementLayer
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{
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readonly Map map;
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readonly byte terrainIndex;
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readonly CellLayer<int> height;
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public JumpjetActorLayer(Actor self, JumpjetActorLayerInfo info)
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{
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map = self.World.Map;
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terrainIndex = self.World.Map.Rules.TerrainInfo.GetTerrainIndex(info.TerrainType);
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height = new CellLayer<int>(map);
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var cellHeight = self.World.Map.CellHeightStep.Length;
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foreach (var c in map.AllCells)
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{
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var neighbourCount = 0;
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var neighbourHeight = 0;
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for (var dy = -info.SmoothingRadius; dy <= info.SmoothingRadius; dy++)
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{
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for (var dx = -info.SmoothingRadius; dx <= info.SmoothingRadius; dx++)
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{
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var neighbour = c + new CVec(dx, dy);
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if (!map.AllCells.Contains(neighbour))
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continue;
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neighbourCount++;
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neighbourHeight += map.Height[neighbour];
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}
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}
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height[c] = info.HeightOffset.Length + neighbourHeight * cellHeight / neighbourCount;
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}
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}
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bool ICustomMovementLayer.EnabledForLocomotor(LocomotorInfo li) { return li is JumpjetLocomotorInfo; }
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byte ICustomMovementLayer.Index => CustomMovementLayerType.Jumpjet;
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bool ICustomMovementLayer.InteractsWithDefaultLayer => true;
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bool ICustomMovementLayer.ReturnToGroundLayerOnIdle => true;
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WPos ICustomMovementLayer.CenterOfCell(CPos cell)
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{
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var pos = map.CenterOfCell(cell);
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return pos + new WVec(0, 0, height[cell] - pos.Z);
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}
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bool ValidTransitionCell(CPos cell, LocomotorInfo li)
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{
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var terrainType = map.GetTerrainInfo(cell).Type;
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var jli = (JumpjetLocomotorInfo)li;
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if (!jli.JumpjetTransitionTerrainTypes.Contains(terrainType) && jli.JumpjetTransitionTerrainTypes.Any())
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return false;
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if (jli.JumpjetTransitionOnRamps)
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return true;
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return map.Ramp[cell] == 0;
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}
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short ICustomMovementLayer.EntryMovementCost(LocomotorInfo li, CPos cell)
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{
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var jli = (JumpjetLocomotorInfo)li;
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return ValidTransitionCell(cell, jli) ? jli.JumpjetTransitionCost : 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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var jli = (JumpjetLocomotorInfo)li;
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return ValidTransitionCell(cell, jli) ? jli.JumpjetTransitionCost : PathGraph.MovementCostForUnreachableCell;
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}
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byte ICustomMovementLayer.GetTerrainIndex(CPos cell)
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{
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return terrainIndex;
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}
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}
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}
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