111 lines
2.9 KiB
C#
111 lines
2.9 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;
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using System.Collections.Generic;
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using OpenRA.Effects;
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using OpenRA.Graphics;
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namespace OpenRA.Mods.Common.Effects
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{
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public class Beacon : IEffect
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{
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static readonly int MaxArrowHeight = 512;
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readonly Player owner;
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readonly WPos position;
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readonly string palettePrefix;
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readonly string posterPalette;
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readonly Animation arrow;
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readonly Animation circles;
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readonly Animation poster;
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readonly Animation clock;
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int arrowHeight = MaxArrowHeight;
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int arrowSpeed = 50;
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// Player-placed beacons are removed after a delay
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public Beacon(Player owner, WPos position, int duration, string palettePrefix)
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{
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this.owner = owner;
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this.position = position;
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this.palettePrefix = palettePrefix;
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arrow = new Animation(owner.World, "beacon");
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circles = new Animation(owner.World, "beacon");
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arrow.Play("arrow");
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circles.Play("circles");
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if (duration > 0)
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owner.World.Add(new DelayedAction(duration, () => owner.World.Remove(this)));
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}
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// Support power beacons are expected to clean themselves up
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public Beacon(Player owner, WPos position, string palettePrefix, string posterType, string posterPalette, Func<float> clockFraction)
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: this(owner, position, -1, palettePrefix)
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{
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this.posterPalette = posterPalette;
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if (posterType != null)
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{
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poster = new Animation(owner.World, "beacon");
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poster.Play(posterType);
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if (clockFraction != null)
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{
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clock = new Animation(owner.World, "beacon");
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clock.PlayFetchIndex("clock", () => Exts.Clamp((int)(clockFraction() * (clock.CurrentSequence.Length - 1)), 0, clock.CurrentSequence.Length - 1));
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}
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}
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}
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public void Tick(World world)
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{
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arrowHeight += arrowSpeed;
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var clamped = arrowHeight.Clamp(0, MaxArrowHeight);
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if (arrowHeight != clamped)
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{
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arrowHeight = clamped;
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arrowSpeed *= -1;
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}
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arrow.Tick();
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circles.Tick();
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if (clock != null)
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clock.Tick();
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}
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public IEnumerable<IRenderable> Render(WorldRenderer r)
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{
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if (!owner.IsAlliedWith(owner.World.RenderPlayer))
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yield break;
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var palette = r.Palette(palettePrefix + owner.InternalName);
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foreach (var a in circles.Render(position, palette))
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yield return a;
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foreach (var a in arrow.Render(position + new WVec(0, 0, arrowHeight), palette))
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yield return a;
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if (poster != null)
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{
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foreach (var a in poster.Render(position, r.Palette(posterPalette)))
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yield return a;
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if (clock != null)
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foreach (var a in clock.Render(position, r.Palette(posterPalette)))
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yield return a;
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}
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}
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}
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}
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