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OpenRA/OpenRA.Mods.Common/Traits/World/JumpjetActorLayer.cs

109 lines
3.4 KiB
C#

#region Copyright & License Information
/*
* Copyright 2007-2020 The OpenRA Developers (see AUTHORS)
* This file is part of OpenRA, which is free software. It is made
* available to you under the terms of the GNU General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version. For more
* information, see COPYING.
*/
#endregion
using System.Linq;
using OpenRA.Traits;
namespace OpenRA.Mods.Common.Traits
{
public class JumpjetActorLayerInfo : ITraitInfo
{
[Desc("Terrain type of the airborne layer.")]
public readonly string TerrainType = "Jumpjet";
[Desc("Height offset relative to the smoothed terrain for movement.")]
public readonly WDist HeightOffset = new WDist(3992);
[Desc("Cell radius for smoothing adjacent cell heights.")]
public readonly int SmoothingRadius = 2;
public object Create(ActorInitializer init) { return new JumpjetActorLayer(init.Self, this); }
}
public class JumpjetActorLayer : ICustomMovementLayer
{
readonly Map map;
readonly byte terrainIndex;
readonly CellLayer<int> height;
public JumpjetActorLayer(Actor self, JumpjetActorLayerInfo info)
{
map = self.World.Map;
terrainIndex = self.World.Map.Rules.TileSet.GetTerrainIndex(info.TerrainType);
height = new CellLayer<int>(map);
var cellHeight = self.World.Map.CellHeightStep.Length;
foreach (var c in map.AllCells)
{
var neighbourCount = 0;
var neighbourHeight = 0;
for (var dy = -info.SmoothingRadius; dy <= info.SmoothingRadius; dy++)
{
for (var dx = -info.SmoothingRadius; dx <= info.SmoothingRadius; dx++)
{
var neighbour = c + new CVec(dx, dy);
if (!map.AllCells.Contains(neighbour))
continue;
neighbourCount++;
neighbourHeight += map.Height[neighbour];
}
}
height[c] = info.HeightOffset.Length + neighbourHeight * cellHeight / neighbourCount;
}
}
bool ICustomMovementLayer.EnabledForActor(ActorInfo a, LocomotorInfo li) { return li is JumpjetLocomotorInfo; }
byte ICustomMovementLayer.Index { get { return CustomMovementLayerType.Jumpjet; } }
bool ICustomMovementLayer.InteractsWithDefaultLayer { get { return true; } }
bool ICustomMovementLayer.ReturnToGroundLayerOnIdle { get { return true; } }
WPos ICustomMovementLayer.CenterOfCell(CPos cell)
{
var pos = map.CenterOfCell(cell);
return pos + new WVec(0, 0, height[cell] - pos.Z);
}
bool ValidTransitionCell(CPos cell, LocomotorInfo li)
{
var terrainType = map.GetTerrainInfo(cell).Type;
var jli = (JumpjetLocomotorInfo)li;
if (!jli.JumpjetTransitionTerrainTypes.Contains(terrainType) && jli.JumpjetTransitionTerrainTypes.Any())
return false;
if (jli.JumpjetTransitionOnRamps)
return true;
var tile = map.Tiles[cell];
var ti = map.Rules.TileSet.GetTileInfo(tile);
return ti == null || ti.RampType == 0;
}
int ICustomMovementLayer.EntryMovementCost(ActorInfo a, LocomotorInfo li, CPos cell)
{
var jli = (JumpjetLocomotorInfo)li;
return ValidTransitionCell(cell, jli) ? jli.JumpjetTransitionCost : int.MaxValue;
}
int ICustomMovementLayer.ExitMovementCost(ActorInfo a, LocomotorInfo li, CPos cell)
{
var jli = (JumpjetLocomotorInfo)li;
return ValidTransitionCell(cell, jli) ? jli.JumpjetTransitionCost : int.MaxValue;
}
byte ICustomMovementLayer.GetTerrainIndex(CPos cell)
{
return terrainIndex;
}
}
}