107 lines
3.2 KiB
C#
Executable File
107 lines
3.2 KiB
C#
Executable File
#region Copyright & License Information
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/*
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* Copyright 2007-2011 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.Collections.Generic;
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using OpenRA.Mods.RA.Render;
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using OpenRA.FileFormats;
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using OpenRA.Traits;
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namespace OpenRA.Mods.RA
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{
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public class TurretedInfo : ITraitInfo, UsesInit<TurretFacingInit>
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{
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public readonly string Turret = "primary";
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[Desc("Rate of Turning")]
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public readonly int ROT = 255;
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public readonly int InitialFacing = 128;
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public readonly int[] LegacyOffset = {0,0};
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public readonly bool AlignWhenIdle = false;
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public virtual object Create(ActorInitializer init) { return new Turreted(init, this); }
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}
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public class Turreted : ITick, ISync, IResolveOrder
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{
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[Sync] public int turretFacing = 0;
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public int? desiredFacing;
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public TurretedInfo info;
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protected Turret turret;
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IFacing facing;
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public static int GetInitialTurretFacing(ActorInitializer init, int def)
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{
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if (init.Contains<TurretFacingInit>())
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return init.Get<TurretFacingInit,int>();
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if (init.Contains<FacingInit>())
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return init.Get<FacingInit,int>();
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return def;
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}
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public Turreted(ActorInitializer init, TurretedInfo info)
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{
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this.info = info;
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turretFacing = GetInitialTurretFacing(init, info.InitialFacing);
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facing = init.self.TraitOrDefault<IFacing>();
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turret = new Turret(info.LegacyOffset);
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}
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public virtual void Tick(Actor self)
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{
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var df = desiredFacing ?? ( facing != null ? facing.Facing : turretFacing );
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turretFacing = Util.TickFacing(turretFacing, df, info.ROT);
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}
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public bool FaceTarget(Actor self, Target target)
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{
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desiredFacing = Util.GetFacing( target.CenterLocation - self.CenterLocation, turretFacing );
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return turretFacing == desiredFacing;
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}
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public virtual void ResolveOrder(Actor self, Order order)
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{
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if (info.AlignWhenIdle && order.OrderString != "Attack" && order.OrderString != "AttackHold")
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desiredFacing = null;
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}
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public PVecFloat PxPosition(Actor self, IFacing facing)
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{
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return turret.PxPosition(self, facing);
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}
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}
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public class Turret
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{
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public PVecInt UnitSpacePosition; // where, in the unit's local space.
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public PVecInt ScreenSpacePosition; // screen-space hack to make things line up good.
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public Turret(int[] offset)
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{
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ScreenSpacePosition = (PVecInt) offset.AbsOffset().ToInt2();
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UnitSpacePosition = (PVecInt) offset.RelOffset().ToInt2();
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}
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public PVecFloat PxPosition(Actor self, IFacing facing)
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{
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// Things that don't have a rotating base don't need the turrets repositioned
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if (facing == null) return ScreenSpacePosition;
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var ru = self.TraitOrDefault<RenderUnit>();
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var numDirs = (ru != null) ? ru.anim.CurrentSequence.Facings : 8;
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var bodyFacing = facing.Facing;
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var quantizedFacing = Util.QuantizeFacing(bodyFacing, numDirs) * (256 / numDirs);
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return (PVecFloat)Util.RotateVectorByFacing(UnitSpacePosition.ToFloat2(), quantizedFacing, .7f)
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+ (PVecFloat)ScreenSpacePosition.ToFloat2();
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}
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}
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}
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