127 lines
4.3 KiB
C#
127 lines
4.3 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.Collections.Generic;
|
|
using OpenRA.Mods.Common.Effects;
|
|
using OpenRA.Mods.Common.Traits;
|
|
using OpenRA.Traits;
|
|
|
|
namespace OpenRA.Mods.Common.Warheads
|
|
{
|
|
public class CreateEffectWarhead : Warhead
|
|
{
|
|
[Desc("List of explosion effects that can be used.")]
|
|
public readonly string[] Explosions = new string[0];
|
|
|
|
[Desc("Palette to use for explosion effect."), PaletteReference("UsePlayerPalette")]
|
|
public readonly string ExplosionPalette = "effect";
|
|
|
|
[Desc("Remap explosion effect to player color, if art supports it.")]
|
|
public readonly bool UsePlayerPalette = false;
|
|
|
|
[Desc("List of sounds that can be played on impact.")]
|
|
public readonly string[] ImpactSounds = new string[0];
|
|
|
|
[Desc("What impact types should this effect apply to.")]
|
|
public readonly ImpactType ValidImpactTypes = ImpactType.Ground | ImpactType.Water | ImpactType.Air | ImpactType.GroundHit | ImpactType.WaterHit | ImpactType.AirHit;
|
|
|
|
[Desc("What impact types should this effect NOT apply to.", "Overrides ValidImpactTypes.")]
|
|
public readonly ImpactType InvalidImpactTypes = ImpactType.None;
|
|
|
|
public ImpactType GetImpactType(World world, CPos cell, WPos pos, Actor firedBy)
|
|
{
|
|
// Missiles need a margin because they sometimes explode a little above ground
|
|
// due to their explosion check triggering slightly too early (because of CloseEnough).
|
|
// TODO: Base ImpactType on target altitude instead of explosion altitude.
|
|
var airMargin = new WDist(128);
|
|
|
|
// Matching target actor
|
|
if (ValidImpactTypes.HasFlag(ImpactType.TargetHit) && GetDirectHit(world, cell, pos, firedBy, true))
|
|
return ImpactType.TargetHit;
|
|
|
|
var dat = world.Map.DistanceAboveTerrain(pos);
|
|
var isDirectHit = GetDirectHit(world, cell, pos, firedBy);
|
|
|
|
if (dat.Length > airMargin.Length)
|
|
return isDirectHit ? ImpactType.AirHit : ImpactType.Air;
|
|
|
|
if (dat.Length <= airMargin.Length && world.Map.GetTerrainInfo(cell).IsWater)
|
|
return isDirectHit ? ImpactType.WaterHit : ImpactType.Water;
|
|
|
|
if (isDirectHit)
|
|
return ImpactType.GroundHit;
|
|
|
|
// Matching target terrain
|
|
if (ValidImpactTypes.HasFlag(ImpactType.TargetTerrain)
|
|
&& IsValidTarget(world.Map.GetTerrainInfo(cell).TargetTypes))
|
|
return ImpactType.TargetTerrain;
|
|
|
|
return ImpactType.Ground;
|
|
}
|
|
|
|
public bool GetDirectHit(World world, CPos cell, WPos pos, Actor firedBy, bool checkTargetType = false)
|
|
{
|
|
foreach (var unit in world.ActorMap.GetActorsAt(cell))
|
|
{
|
|
if (checkTargetType && !IsValidAgainst(unit, firedBy))
|
|
continue;
|
|
|
|
var healthInfo = unit.Info.TraitInfoOrDefault<HealthInfo>();
|
|
if (healthInfo == null)
|
|
continue;
|
|
|
|
// If the impact position is within any actor's HitShape, we have a direct hit
|
|
if ((unit.CenterPosition - pos).LengthSquared <= healthInfo.Shape.DistanceFromEdge(pos, unit).LengthSquared)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public override void DoImpact(Target target, Actor firedBy, IEnumerable<int> damageModifiers)
|
|
{
|
|
var pos = target.CenterPosition;
|
|
var world = firedBy.World;
|
|
var targetTile = world.Map.CellContaining(pos);
|
|
var isValid = IsValidImpact(pos, firedBy);
|
|
|
|
if ((!world.Map.Contains(targetTile)) || (!isValid))
|
|
return;
|
|
|
|
var palette = ExplosionPalette;
|
|
if (UsePlayerPalette)
|
|
palette += firedBy.Owner.InternalName;
|
|
|
|
var explosion = Explosions.RandomOrDefault(Game.CosmeticRandom);
|
|
if (explosion != null)
|
|
world.AddFrameEndTask(w => w.Add(new Explosion(w, pos, explosion, palette)));
|
|
|
|
var impactSound = ImpactSounds.RandomOrDefault(Game.CosmeticRandom);
|
|
if (impactSound != null)
|
|
Game.Sound.Play(impactSound, pos);
|
|
}
|
|
|
|
public bool IsValidImpact(WPos pos, Actor firedBy)
|
|
{
|
|
var world = firedBy.World;
|
|
var targetTile = world.Map.CellContaining(pos);
|
|
if (!world.Map.Contains(targetTile))
|
|
return false;
|
|
|
|
var impactType = GetImpactType(world, targetTile, pos, firedBy);
|
|
if (!ValidImpactTypes.HasFlag(impactType) || InvalidImpactTypes.HasFlag(impactType))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
}
|
|
}
|