329 lines
8.9 KiB
C#
329 lines
8.9 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2013 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. For more information,
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* see COPYING.
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using OpenRA.Mods.RA.Activities;
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using OpenRA.Mods.RA.Buildings;
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using OpenRA.Mods.RA.Orders;
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using OpenRA.Primitives;
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using OpenRA.Traits;
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namespace OpenRA.Mods.RA.Air
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{
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public class AircraftInfo : ITraitInfo, IFacingInfo, IOccupySpaceInfo, UsesInit<LocationInit>, UsesInit<FacingInit>
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{
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public readonly WRange CruiseAltitude = new WRange(1280);
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public readonly WRange IdealSeparation = new WRange(1706);
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[Desc("Whether the aircraft can be repulsed.")]
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public readonly bool Repulsable = true;
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[Desc("The speed at which the aircraft is repulsed from other aircraft. Specify -1 for normal movement speed.")]
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public readonly int RepulsionSpeed = -1;
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[ActorReference]
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public readonly string[] RepairBuildings = { "fix" };
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[ActorReference]
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public readonly string[] RearmBuildings = { "hpad", "afld" };
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public readonly int InitialFacing = 128;
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public readonly int ROT = 255;
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public readonly int Speed = 1;
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public readonly string[] LandableTerrainTypes = { };
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[Desc("Can the actor be ordered to move in to shroud?")]
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public readonly bool MoveIntoShroud = true;
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public virtual object Create(ActorInitializer init) { return new Aircraft(init, this); }
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public int GetInitialFacing() { return InitialFacing; }
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}
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public class Aircraft : IFacing, IPositionable, ISync, INotifyKilled, IIssueOrder, IOrderVoice, INotifyAddedToWorld, INotifyRemovedFromWorld
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{
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static readonly Pair<CPos, int>[] NoCells = { };
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readonly AircraftInfo info;
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readonly Actor self;
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[Sync] public int Facing { get; set; }
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[Sync] public WPos CenterPosition { get; private set; }
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public CPos TopLeft { get { return self.World.Map.CellContaining(CenterPosition); } }
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public IDisposable Reservation;
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public int ROT { get { return info.ROT; } }
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public Aircraft(ActorInitializer init, AircraftInfo info)
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{
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this.info = info;
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this.self = init.self;
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if (init.Contains<LocationInit>())
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SetPosition(self, init.Get<LocationInit, CPos>());
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if (init.Contains<CenterPositionInit>())
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SetPosition(self, init.Get<CenterPositionInit, WPos>());
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Facing = init.Contains<FacingInit>() ? init.Get<FacingInit, int>() : info.InitialFacing;
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}
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public void Repulse()
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{
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var repulsionForce = GetRepulsionForce();
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var repulsionFacing = Util.GetFacing(repulsionForce, -1);
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if (repulsionFacing == -1)
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return;
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var speed = info.RepulsionSpeed != -1 ? info.RepulsionSpeed : MovementSpeed;
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SetPosition(self, CenterPosition + FlyStep(speed, repulsionFacing));
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}
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public virtual WVec GetRepulsionForce()
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{
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if (!info.Repulsable)
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return WVec.Zero;
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// Repulsion only applies when we're flying!
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var altitude = CenterPosition.Z;
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if (altitude != info.CruiseAltitude.Range)
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return WVec.Zero;
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return self.World.FindActorsInCircle(self.CenterPosition, info.IdealSeparation)
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.Where(a => !a.IsDead() && a.HasTrait<Aircraft>())
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.Select(GetRepulsionForce)
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.Aggregate(WVec.Zero, (a, b) => a + b);
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}
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public WVec GetRepulsionForce(Actor other)
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{
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if (self == other || other.CenterPosition.Z < self.CenterPosition.Z)
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return WVec.Zero;
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var d = self.CenterPosition - other.CenterPosition;
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var distSq = d.HorizontalLengthSquared;
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if (distSq > info.IdealSeparation.Range * info.IdealSeparation.Range)
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return WVec.Zero;
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if (distSq < 1)
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{
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var yaw = self.World.SharedRandom.Next(0, 1023);
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var rot = new WRot(WAngle.Zero, WAngle.Zero, new WAngle(yaw));
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return new WVec(1024, 0, 0).Rotate(rot);
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}
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return (d * 1024 * 8) / (int)distSq;
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}
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public Actor GetActorBelow()
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{
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if (self.CenterPosition.Z != 0)
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return null; // not on the ground.
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return self.World.ActorMap.GetUnitsAt(self.Location)
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.FirstOrDefault(a => a.HasTrait<Reservable>());
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}
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protected void ReserveSpawnBuilding()
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{
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/* HACK: not spawning in the air, so try to assoc. with our afld. */
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var afld = GetActorBelow();
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if (afld == null)
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return;
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var res = afld.Trait<Reservable>();
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if (res != null)
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{
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UnReserve();
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Reservation = res.Reserve(afld, self, this);
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}
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}
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public void UnReserve()
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{
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if (Reservation != null)
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{
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Reservation.Dispose();
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Reservation = null;
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}
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}
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public void Killed(Actor self, AttackInfo e)
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{
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UnReserve();
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}
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public void SetPosition(Actor self, WPos pos)
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{
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CenterPosition = pos;
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if (self.IsInWorld)
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{
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self.World.ScreenMap.Update(self);
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self.World.ActorMap.UpdatePosition(self, this);
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}
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}
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// Changes position, but not altitude
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public void SetPosition(Actor self, CPos cell) { SetPosition(self, self.World.Map.CenterOfCell(cell) + new WVec(0, 0, CenterPosition.Z)); }
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public void SetVisualPosition(Actor self, WPos pos) { SetPosition(self, pos); }
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public void AddedToWorld(Actor self)
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{
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self.World.ActorMap.AddInfluence(self, this);
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self.World.ActorMap.AddPosition(self, this);
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self.World.ScreenMap.Add(self);
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}
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public void RemovedFromWorld(Actor self)
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{
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self.World.ActorMap.RemoveInfluence(self, this);
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self.World.ActorMap.RemovePosition(self, this);
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self.World.ScreenMap.Remove(self);
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}
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public bool AircraftCanEnter(Actor a)
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{
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if (self.AppearsHostileTo(a))
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return false;
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return info.RearmBuildings.Contains(a.Info.Name)
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|| info.RepairBuildings.Contains(a.Info.Name);
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}
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public bool CanEnterCell(CPos location) { return true; }
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public bool CanEnterCell(CPos cell, Actor ignoreActor, bool checkTransientActors) { return true; }
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public int MovementSpeed
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{
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get
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{
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decimal ret = info.Speed;
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foreach (var t in self.TraitsImplementing<ISpeedModifier>())
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ret *= t.GetSpeedModifier();
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return (int)ret;
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}
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}
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public IEnumerable<Pair<CPos, int>> OccupiedCells() { return NoCells; }
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public WVec FlyStep(int facing)
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{
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return FlyStep(MovementSpeed, facing);
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}
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public WVec FlyStep(int speed, int facing)
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{
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var dir = new WVec(0, -1024, 0).Rotate(WRot.FromFacing(facing));
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return speed * dir / 1024;
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}
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public bool CanLand(CPos cell)
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{
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if (!self.World.Map.Contains(cell))
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return false;
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if (self.World.ActorMap.AnyUnitsAt(cell))
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return false;
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var type = self.World.Map.GetTerrainInfo(cell).Type;
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return info.LandableTerrainTypes.Contains(type);
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}
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public virtual IEnumerable<Activity> GetResupplyActivities(Actor a)
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{
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var name = a.Info.Name;
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if (info.RearmBuildings.Contains(name))
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yield return new Rearm(self);
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if (info.RepairBuildings.Contains(name))
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yield return new Repair(a);
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}
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public IEnumerable<IOrderTargeter> Orders
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{
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get
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{
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yield return new EnterAlliedActorTargeter<Building>("Enter", 5,
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target => AircraftCanEnter(target), target => !Reservable.IsReserved(target));
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yield return new AircraftMoveOrderTargeter(info);
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}
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}
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public Order IssueOrder(Actor self, IOrderTargeter order, Target target, bool queued)
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{
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if (order.OrderID == "Enter")
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return new Order(order.OrderID, self, queued) { TargetActor = target.Actor };
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if (order.OrderID == "Move")
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return new Order(order.OrderID, self, queued) { TargetLocation = self.World.Map.CellContaining(target.CenterPosition) };
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return null;
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}
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public string VoicePhraseForOrder(Actor self, Order order)
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{
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switch (order.OrderString)
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{
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case "Move":
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case "Enter":
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case "ReturnToBase":
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case "Stop":
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return "Move";
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default: return null;
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}
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}
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}
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public class ResupplyAircraft : Activity
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{
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public override Activity Tick(Actor self)
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{
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var aircraft = self.Trait<Aircraft>();
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var host = aircraft.GetActorBelow();
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if (host == null)
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return NextActivity;
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return Util.SequenceActivities(
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aircraft.GetResupplyActivities(host).Append(NextActivity).ToArray());
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}
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}
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class AircraftMoveOrderTargeter : IOrderTargeter
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{
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public string OrderID { get { return "Move"; } }
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public int OrderPriority { get { return 4; } }
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readonly AircraftInfo info;
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public AircraftMoveOrderTargeter(AircraftInfo info) { this.info = info; }
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public bool CanTarget(Actor self, Target target, List<Actor> othersAtTarget, TargetModifiers modifiers, ref string cursor)
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{
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if (target.Type != TargetType.Terrain)
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return false;
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var location = self.World.Map.CellContaining(target.CenterPosition);
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var explored = self.Owner.Shroud.IsExplored(location);
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cursor = self.World.Map.Contains(location) ?
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(self.World.Map.GetTerrainInfo(location).CustomCursor ?? "move") :
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"move-blocked";
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IsQueued = modifiers.HasModifier(TargetModifiers.ForceQueue);
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if (!explored && !info.MoveIntoShroud)
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cursor = "move-blocked";
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return true;
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}
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public bool IsQueued { get; protected set; }
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}
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}
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