80 lines
2.1 KiB
C#
80 lines
2.1 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2011 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.Graphics;
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using OpenRA.Traits;
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namespace OpenRA.Mods.RA.Effects
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{
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public class Parachute : IEffect
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{
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readonly Animation paraAnim;
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readonly PPos location;
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readonly Actor cargo;
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int2 offset;
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float altitude;
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const float fallRate = .3f;
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public Parachute(Actor cargo, PPos location, int altitude)
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{
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this.location = location;
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this.altitude = altitude;
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this.cargo = cargo;
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var pai = cargo.Info.Traits.GetOrDefault<ParachuteAttachmentInfo>();
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paraAnim = new Animation(pai != null ? pai.ParachuteSprite : "parach");
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paraAnim.PlayThen("open", () => paraAnim.PlayRepeating("idle"));
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if (pai != null) offset = pai.Offset;
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cargo.Trait<ITeleportable>().SetPxPosition(cargo, location);
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}
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public void Tick(World world)
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{
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paraAnim.Tick();
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altitude -= fallRate;
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if (altitude <= 0)
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world.AddFrameEndTask(w =>
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{
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w.Remove(this);
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var loc = location.ToCPos();
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cargo.CancelActivity();
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cargo.Trait<ITeleportable>().SetPosition(cargo, loc);
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w.Add(cargo);
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foreach( var npl in cargo.TraitsImplementing<INotifyParachuteLanded>() )
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npl.OnLanded();
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});
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}
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public IEnumerable<Renderable> Render(WorldRenderer wr)
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{
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var rc = cargo.Render(wr).Select(a => a.WithPos(a.Pos - new float2(0, altitude))
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.WithZOffset(a.ZOffset + (int)altitude));
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foreach (var c in rc)
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{
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yield return c.WithPos(location.ToFloat2() - .5f * c.Sprite.size).WithPalette(wr.Palette("shadow")).WithZOffset(0);
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yield return c.WithZOffset(2);
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}
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var pos = location.ToFloat2() - new float2(0, altitude);
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yield return new Renderable(paraAnim.Image, pos - .5f * paraAnim.Image.size + offset, rc.First().Palette, 3);
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}
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}
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}
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