106 lines
3.1 KiB
C#
106 lines
3.1 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2014 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 System.Linq;
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using OpenRA.Effects;
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using OpenRA.GameRules;
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using OpenRA.Traits;
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using OpenRA.Mods.RA.Effects;
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namespace OpenRA.Mods.RA
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{
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public class CreateEffectWarhead : Warhead
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{
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[Desc("Explosion effect to use.")]
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public readonly string Explosion = null;
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[Desc("Palette to use for explosion effect.")]
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public readonly string ExplosionPalette = "effect";
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[Desc("Sound to play on impact.")]
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public readonly string ImpactSound = null;
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[Desc("What impact types should this effect apply to.")]
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public readonly ImpactType ValidImpactTypes = ImpactType.Ground | ImpactType.Water | ImpactType.Air | ImpactType.GroundHit | ImpactType.WaterHit | ImpactType.AirHit;
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[Desc("What impact types should this effect NOT apply to.", "Overrides ValidImpactTypes.")]
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public readonly ImpactType InvalidImpactTypes = ImpactType.None;
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public static ImpactType GetImpactType(World world, CPos cell, WPos pos)
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{
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var isAir = pos.Z > 0;
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var isWater = pos.Z <= 0 && world.Map.GetTerrainInfo(cell).IsWater;
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var isDirectHit = GetDirectHit(world, cell, pos);
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if (isAir && !isDirectHit)
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return ImpactType.Air;
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else if (isWater && !isDirectHit)
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return ImpactType.Water;
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else if (isAir && isDirectHit)
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return ImpactType.AirHit;
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else if (isWater && isDirectHit)
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return ImpactType.WaterHit;
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else if (isDirectHit)
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return ImpactType.GroundHit;
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return ImpactType.Ground;
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}
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public static bool GetDirectHit(World world, CPos cell, WPos pos)
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{
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foreach (var unit in world.ActorMap.GetUnitsAt(cell))
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{
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var healthInfo = unit.Info.Traits.GetOrDefault<HealthInfo>();
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if (healthInfo == null)
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continue;
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// If the impact position is within any actor's health radius, we have a direct hit
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if ((unit.CenterPosition - pos).LengthSquared <= healthInfo.Radius.Range * healthInfo.Radius.Range)
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return true;
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}
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return false;
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}
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public override void DoImpact(Target target, Actor firedBy, IEnumerable<int> damageModifiers)
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{
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var pos = target.CenterPosition;
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var world = firedBy.World;
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var targetTile = world.Map.CellContaining(pos);
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var isValid = IsValidImpact(pos, firedBy);
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if ((!world.Map.Contains(targetTile)) || (!isValid))
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return;
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if (Explosion != null)
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world.AddFrameEndTask(w => w.Add(new Explosion(w, pos, Explosion, ExplosionPalette)));
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if (ImpactSound != null)
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Sound.Play(ImpactSound, pos);
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}
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public bool IsValidImpact(WPos pos, Actor firedBy)
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{
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var world = firedBy.World;
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var targetTile = world.Map.CellContaining(pos);
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var impactType = GetImpactType(world, targetTile, pos);
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if (!ValidImpactTypes.HasFlag(impactType) || InvalidImpactTypes.HasFlag(impactType))
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return false;
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return true;
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}
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}
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}
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