Files
OpenRA/OpenRA.Mods.RA/Effects/LaserZap.cs
2013-06-16 19:37:54 +12:00

99 lines
2.5 KiB
C#
Executable File

#region Copyright & License Information
/*
* Copyright 2007-2011 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. For more information,
* see COPYING.
*/
#endregion
using System.Collections.Generic;
using System.Drawing;
using OpenRA.Effects;
using OpenRA.GameRules;
using OpenRA.Graphics;
using OpenRA.FileFormats;
using OpenRA.Traits;
namespace OpenRA.Mods.RA.Effects
{
[Desc("Not a sprite, but an engine effect.")]
class LaserZapInfo : IProjectileInfo
{
public readonly int BeamWidth = 2;
public readonly int BeamDuration = 10;
public readonly bool UsePlayerColor = false;
public readonly Color Color = Color.Red;
public readonly string HitAnim = null;
public IEffect Create(ProjectileArgs args)
{
var c = UsePlayerColor ? args.firedBy.Owner.Color.RGB : Color;
return new LaserZap(args, this, c);
}
}
class LaserZap : IEffect
{
ProjectileArgs args;
LaserZapInfo info;
int ticks = 0;
Color color;
bool doneDamage;
Animation hitanim;
public LaserZap(ProjectileArgs args, LaserZapInfo info, Color color)
{
this.args = args;
this.info = info;
this.color = color;
if (info.HitAnim != null)
this.hitanim = new Animation(info.HitAnim);
}
public void Tick(World world)
{
// Beam tracks target
if (args.target.IsValid)
args.dest = args.target.CenterLocation;
if (!doneDamage)
{
if (hitanim != null)
hitanim.PlayThen("idle",
() => world.AddFrameEndTask(w => w.Remove(this)));
Combat.DoImpacts(args);
doneDamage = true;
}
++ticks;
if (hitanim != null)
hitanim.Tick();
else
if (ticks >= info.BeamDuration)
world.AddFrameEndTask(w => w.Remove(this));
}
public IEnumerable<IRenderable> Render(WorldRenderer wr)
{
if (ticks < info.BeamDuration)
{
var src = new PPos(args.src.X, args.src.Y).ToWPos(args.srcAltitude);
var dest = new PPos(args.dest.X, args.dest.Y).ToWPos(args.destAltitude);
var rc = Color.FromArgb((info.BeamDuration - ticks)*255/info.BeamDuration, color);
yield return new BeamRenderable(src, 0, dest - src, info.BeamWidth, rc);
}
if (hitanim != null)
yield return new SpriteRenderable(hitanim.Image, args.dest.ToFloat2(),
wr.Palette("effect"), (int)args.dest.Y);
if (ticks >= info.BeamDuration)
yield break;
}
}
}