Files
OpenRA/OpenRA.Game/Traits/World/HazardLayer.cs
2010-07-18 16:48:21 +12:00

76 lines
2.0 KiB
C#

#region Copyright & License Information
/*
* Copyright 2007-2010 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. For more information,
* see LICENSE.
*/
#endregion
using System.Collections.Generic;
using System.Linq;
using OpenRA.FileFormats;
namespace OpenRA.Traits
{
public class HazardLayerInfo : ITraitInfo
{
public object Create( ActorInitializer init ) { return new HazardLayer( init.world ); }
}
public class HazardLayer : ITerrainCost
{
List<Pair<Actor, Hazard>>[,] hazards;
public HazardLayer( World world )
{
hazards = new List<Pair<Actor, Hazard>>[world.Map.MapSize.X, world.Map.MapSize.Y];
for (int i = 0; i < world.Map.MapSize.X; i++)
for (int j = 0; j < world.Map.MapSize.Y; j++)
hazards[ i, j ] = new List<Pair<Actor, Hazard>>();
world.ActorRemoved += a => Remove( a, a.traits.GetOrDefault<IProvideHazard>() );
}
public float GetTerrainCost(int2 p, Actor forActor)
{
var avoid = forActor.traits.WithInterface<IAvoidHazard>().Select(h => h.Type).ToList();
var intensity = hazards[p.X,p.Y].Where(a => avoid.Contains(a.Second.type))
.Select(b => b.Second.intensity)
.Sum();
return intensity;
}
public void Add( Actor self, IProvideHazard hazard )
{
foreach( var h in hazard.HazardCells(self) )
{
hazards[h.location.X, h.location.Y].Add(Pair.New(self, h));
}
}
public void Remove( Actor self, IProvideHazard hazard )
{
if (hazard != null)
foreach (var h in hazard.HazardCells(self))
hazards[h.location.X, h.location.Y].Remove(Pair.New(self,h));
}
public void Update(Actor self, IProvideHazard hazard)
{
Remove(self, hazard);
if (!self.IsDead) Add(self, hazard);
}
public struct Hazard
{
public int2 location;
public string type;
public float intensity;
}
}
}