80 lines
2.1 KiB
C#
80 lines
2.1 KiB
C#
#region Copyright & License Information
|
|
/*
|
|
* Copyright 2007-2014 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 COPYING.
|
|
*/
|
|
#endregion
|
|
|
|
using System;
|
|
using OpenRA.Traits;
|
|
|
|
namespace OpenRA.Mods.RA.Traits
|
|
{
|
|
[Desc("Wanders around aimlesly when idle.")]
|
|
abstract class WandersInfo : ITraitInfo
|
|
{
|
|
public readonly int WanderMoveRadius = 10;
|
|
|
|
[Desc("Number of ticks to wait until decreasing the effective move radius.")]
|
|
public readonly int MoveReductionRadiusScale = 5;
|
|
|
|
public abstract object Create(ActorInitializer init);
|
|
}
|
|
|
|
class Wanders : INotifyAddedToWorld, INotifyBecomingIdle
|
|
{
|
|
readonly Actor self;
|
|
readonly WandersInfo info;
|
|
|
|
int ticksIdle;
|
|
int effectiveMoveRadius;
|
|
|
|
public Wanders(Actor self, WandersInfo info)
|
|
{
|
|
this.self = self;
|
|
this.info = info;
|
|
effectiveMoveRadius = info.WanderMoveRadius;
|
|
}
|
|
|
|
public void AddedToWorld(Actor self)
|
|
{
|
|
OnBecomingIdle(self);
|
|
}
|
|
|
|
public void OnBecomingIdle(Actor self)
|
|
{
|
|
var targetPos = PickTargetLocation();
|
|
if (targetPos != CPos.Zero)
|
|
DoAction(self, targetPos);
|
|
}
|
|
|
|
CPos PickTargetLocation()
|
|
{
|
|
var target = self.CenterPosition + new WVec(0, -1024 * effectiveMoveRadius, 0).Rotate(WRot.FromFacing(self.World.SharedRandom.Next(255)));
|
|
var targetCell = self.World.Map.CellContaining(target);
|
|
|
|
if (!self.World.Map.Contains(targetCell))
|
|
{
|
|
// If MoveRadius is too big there might not be a valid cell to order the attack to (if actor is on a small island and can't leave)
|
|
if (++ticksIdle % info.MoveReductionRadiusScale == 0)
|
|
effectiveMoveRadius--;
|
|
|
|
return CPos.Zero; // We'll be back the next tick; better to sit idle for a few seconds than prolong this tick indefinitely with a loop
|
|
}
|
|
|
|
ticksIdle = 0;
|
|
effectiveMoveRadius = info.WanderMoveRadius;
|
|
|
|
return targetCell;
|
|
}
|
|
|
|
public virtual void DoAction(Actor self, CPos targetPos)
|
|
{
|
|
throw new NotImplementedException("Base class Wanders does not implement method DoAction!");
|
|
}
|
|
}
|
|
}
|