145 lines
4.2 KiB
C#
145 lines
4.2 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2020 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;
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using System.Linq;
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using OpenRA.Activities;
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using OpenRA.Mods.Cnc.Traits;
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using OpenRA.Mods.Common.Traits;
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using OpenRA.Mods.Common.Traits.Render;
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using OpenRA.Primitives;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Cnc.Activities
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{
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public class Teleport : Activity
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{
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readonly Actor teleporter;
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readonly int? maximumDistance;
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readonly bool killOnFailure;
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readonly BitSet<DamageType> killDamageTypes;
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CPos destination;
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bool killCargo;
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bool screenFlash;
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string sound;
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public Teleport(Actor teleporter, CPos destination, int? maximumDistance,
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bool killCargo, bool screenFlash, string sound, bool interruptable = true,
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bool killOnFailure = false, BitSet<DamageType> killDamageTypes = default(BitSet<DamageType>))
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{
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var max = teleporter.World.Map.Grid.MaximumTileSearchRange;
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if (maximumDistance > max)
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throw new InvalidOperationException($"Teleport distance cannot exceed the value of MaximumTileSearchRange ({max}).");
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this.teleporter = teleporter;
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this.destination = destination;
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this.maximumDistance = maximumDistance;
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this.killCargo = killCargo;
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this.screenFlash = screenFlash;
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this.sound = sound;
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this.killOnFailure = killOnFailure;
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this.killDamageTypes = killDamageTypes;
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if (!interruptable)
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IsInterruptible = false;
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}
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public override bool Tick(Actor self)
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{
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var pc = self.TraitOrDefault<PortableChrono>();
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if (teleporter == self && pc != null && (!pc.CanTeleport || IsCanceling))
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{
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if (killOnFailure)
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self.Kill(teleporter, killDamageTypes);
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return true;
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}
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var bestCell = ChooseBestDestinationCell(self, destination);
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if (bestCell == null)
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{
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if (killOnFailure)
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self.Kill(teleporter, killDamageTypes);
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return true;
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}
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destination = bestCell.Value;
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Game.Sound.Play(SoundType.World, sound, self.CenterPosition);
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Game.Sound.Play(SoundType.World, sound, self.World.Map.CenterOfCell(destination));
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self.Trait<IPositionable>().SetPosition(self, destination);
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self.Generation++;
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if (killCargo)
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{
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var cargo = self.TraitOrDefault<Cargo>();
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if (cargo != null && teleporter != null)
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{
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while (!cargo.IsEmpty(self))
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{
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var a = cargo.Unload(self);
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// Kill all the units that are unloaded into the void
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// Kill() handles kill and death statistics
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a.Kill(teleporter);
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}
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}
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}
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// Consume teleport charges if this wasn't triggered via chronosphere
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if (teleporter == self)
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pc?.ResetChargeTime();
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// Trigger screen desaturate effect
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if (screenFlash)
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foreach (var a in self.World.ActorsWithTrait<ChronoshiftPaletteEffect>())
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a.Trait.Enable();
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if (teleporter != null && self != teleporter && !teleporter.Disposed)
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{
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var building = teleporter.TraitOrDefault<WithSpriteBody>();
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if (building != null && building.DefaultAnimation.HasSequence("active"))
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building.PlayCustomAnimation(teleporter, "active");
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}
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return true;
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}
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CPos? ChooseBestDestinationCell(Actor self, CPos destination)
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{
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if (teleporter == null)
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return null;
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var restrictTo = maximumDistance == null ? null : self.World.Map.FindTilesInCircle(self.Location, maximumDistance.Value);
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if (maximumDistance != null)
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destination = restrictTo.MinBy(x => (x - destination).LengthSquared);
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var pos = self.Trait<IPositionable>();
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if (pos.CanEnterCell(destination) && teleporter.Owner.Shroud.IsExplored(destination))
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return destination;
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var max = maximumDistance != null ? maximumDistance.Value : teleporter.World.Map.Grid.MaximumTileSearchRange;
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foreach (var tile in self.World.Map.FindTilesInCircle(destination, max))
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{
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if (teleporter.Owner.Shroud.IsExplored(tile)
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&& (restrictTo == null || (restrictTo != null && restrictTo.Contains(tile)))
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&& pos.CanEnterCell(tile))
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return tile;
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}
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return null;
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}
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}
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}
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