97 lines
2.9 KiB
C#
97 lines
2.9 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2022 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, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, 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.GameRules;
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using OpenRA.Graphics;
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using OpenRA.Mods.Cnc.Graphics;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Cnc.Projectiles
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{
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[Desc("Instant-hit projectile used to create electricity-like effects.")]
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public class TeslaZapInfo : IProjectileInfo
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{
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public readonly string Image = "litning";
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[SequenceReference(nameof(Image))]
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[Desc("Sprite sequence to play at the center.")]
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public readonly string BrightSequence = "bright";
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[SequenceReference(nameof(Image))]
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[Desc("Sprite sequence to play at the borders.")]
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public readonly string DimSequence = "dim";
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[PaletteReference]
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[Desc("The palette used to draw this electric zap.")]
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public readonly string Palette = "effect";
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[Desc("How many sprite sequences to play at the center.")]
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public readonly int BrightZaps = 1;
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[Desc("How many sprite sequences to play at the borders.")]
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public readonly int DimZaps = 2;
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[Desc("How long (in ticks) to play the sprite sequences.")]
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public readonly int Duration = 2;
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[Desc("How long (in ticks) until applying damage. Can't be longer than `" + nameof(Duration) + "`")]
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public readonly int DamageDuration = 1;
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[Desc("Follow the targeted actor when it moves.")]
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public readonly bool TrackTarget = true;
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public IProjectile Create(ProjectileArgs args) { return new TeslaZap(this, args); }
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}
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public class TeslaZap : IProjectile, ISync
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{
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readonly ProjectileArgs args;
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readonly TeslaZapInfo info;
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TeslaZapRenderable zap;
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int ticksUntilRemove;
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int damageDuration;
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[Sync]
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WPos target;
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public TeslaZap(TeslaZapInfo info, ProjectileArgs args)
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{
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this.args = args;
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this.info = info;
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ticksUntilRemove = info.Duration;
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damageDuration = info.DamageDuration > info.Duration ? info.Duration : info.DamageDuration;
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target = args.PassiveTarget;
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}
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public void Tick(World world)
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{
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if (ticksUntilRemove-- <= 0)
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world.AddFrameEndTask(w => w.Remove(this));
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// Zap tracks target
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if (info.TrackTarget && args.GuidedTarget.IsValidFor(args.SourceActor))
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target = args.Weapon.TargetActorCenter ? args.GuidedTarget.CenterPosition : args.GuidedTarget.Positions.PositionClosestTo(args.Source);
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if (damageDuration-- > 0)
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args.Weapon.Impact(Target.FromPos(target), new WarheadArgs(args));
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}
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public IEnumerable<IRenderable> Render(WorldRenderer wr)
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{
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zap = new TeslaZapRenderable(args.Source, 0, target - args.Source,
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info.Image, info.BrightSequence, info.BrightZaps, info.DimSequence, info.DimZaps, info.Palette);
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yield return zap;
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}
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}
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}
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