94 lines
2.9 KiB
C#
94 lines
2.9 KiB
C#
#region Copyright & License Information
|
|
/*
|
|
* Copyright 2007-2016 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, either version 3 of
|
|
* the License, or (at your option) any later version. For more
|
|
* information, see COPYING.
|
|
*/
|
|
#endregion
|
|
|
|
using System.Linq;
|
|
using OpenRA.GameRules;
|
|
using OpenRA.Traits;
|
|
|
|
namespace OpenRA.Mods.Common.Traits
|
|
{
|
|
[Desc("This actor receives damage from the given weapon when on the specified terrain type.")]
|
|
class DamagedByTerrainInfo : UpgradableTraitInfo, IRulesetLoaded, Requires<HealthInfo>
|
|
{
|
|
[Desc("The weapon which is used to damage the actor.")]
|
|
[WeaponReference, FieldLoader.Require] public readonly string Weapon;
|
|
|
|
[Desc("Terrain types where the actor will take damage.")]
|
|
[FieldLoader.Require] public readonly string[] Terrain = { };
|
|
|
|
[Desc("Percentage health below which the actor will not receive further damage.")]
|
|
public readonly int DamageThreshold = 0;
|
|
|
|
[Desc("Inflict damage down to the DamageThreshold when the actor gets created on damaging terrain.")]
|
|
public readonly bool StartOnThreshold = false;
|
|
|
|
public WeaponInfo WeaponInfo { get; private set; }
|
|
|
|
public override object Create(ActorInitializer init) { return new DamagedByTerrain(init.Self, this); }
|
|
public void RulesetLoaded(Ruleset rules, ActorInfo ai) { WeaponInfo = rules.Weapons[Weapon.ToLowerInvariant()]; }
|
|
}
|
|
|
|
class DamagedByTerrain : UpgradableTrait<DamagedByTerrainInfo>, ITick, ISync, INotifyAddedToWorld
|
|
{
|
|
readonly Health health;
|
|
|
|
[Sync] int damageTicks;
|
|
[Sync] int damageThreshold;
|
|
|
|
public DamagedByTerrain(Actor self, DamagedByTerrainInfo info) : base(info)
|
|
{
|
|
health = self.Trait<Health>();
|
|
}
|
|
|
|
public void AddedToWorld(Actor self)
|
|
{
|
|
if (!Info.StartOnThreshold)
|
|
return;
|
|
|
|
var safeTiles = 0;
|
|
var totalTiles = 0;
|
|
foreach (var kv in self.OccupiesSpace.OccupiedCells())
|
|
{
|
|
totalTiles++;
|
|
if (!Info.Terrain.Contains(self.World.Map.GetTerrainInfo(kv.First).Type))
|
|
safeTiles++;
|
|
}
|
|
|
|
if (totalTiles == 0)
|
|
return;
|
|
|
|
damageThreshold = (Info.DamageThreshold * health.MaxHP + (100 - Info.DamageThreshold) * safeTiles * health.MaxHP / totalTiles) / 100;
|
|
|
|
// Actors start with maximum damage applied
|
|
var delta = health.HP - damageThreshold;
|
|
if (delta > 0)
|
|
health.InflictDamage(self, self.World.WorldActor, new Damage(delta), false);
|
|
}
|
|
|
|
public void Tick(Actor self)
|
|
{
|
|
if (IsTraitDisabled || health.HP <= damageThreshold || --damageTicks > 0)
|
|
return;
|
|
|
|
// Prevents harming cargo.
|
|
if (!self.IsInWorld)
|
|
return;
|
|
|
|
var t = self.World.Map.GetTerrainInfo(self.Location);
|
|
if (!Info.Terrain.Contains(t.Type))
|
|
return;
|
|
|
|
Info.WeaponInfo.Impact(Target.FromActor(self), self.World.WorldActor, Enumerable.Empty<int>());
|
|
damageTicks = Info.WeaponInfo.ReloadDelay;
|
|
}
|
|
}
|
|
}
|