105 lines
3.2 KiB
C#
Executable File
105 lines
3.2 KiB
C#
Executable File
#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.Drawing;
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using OpenRA.FileFormats;
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using OpenRA.Graphics;
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using OpenRA.Traits;
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namespace OpenRA.Mods.RA
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{
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class ContrailInfo : ITraitInfo
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{
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public readonly int[] ContrailOffset = {0, 0};
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public readonly int TrailLength = 20;
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public readonly bool UsePlayerColor = true;
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public object Create(ActorInitializer init) { return new Contrail(init.self, this); }
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}
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class Contrail : ITick, IPostRender
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{
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private ContrailInfo Info = null;
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private Turret ContrailTurret = null;
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ContrailHistory history;
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public Contrail(Actor self, ContrailInfo info)
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{
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Info = info;
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ContrailTurret = new Turret(Info.ContrailOffset);
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history = new ContrailHistory(Info.TrailLength, Info.UsePlayerColor ? ContrailHistory.ChooseColor(self) : Color.White);
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}
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public void Tick(Actor self)
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{
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var facing = self.Trait<IFacing>();
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var altitude = new float2(0, self.Trait<IMove>().Altitude);
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var pos = self.CenterLocation - Combat.GetTurretPosition(self, facing, ContrailTurret) - altitude;
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history.Tick(pos);
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}
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public void RenderAfterWorld(WorldRenderer wr, Actor self) { history.Render(self); }
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}
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class ContrailHistory
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{
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List<float2> positions = new List<float2>();
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readonly int TrailLength;
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readonly Color Color;
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public static Color ChooseColor(Actor self)
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{
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var ownerColor = Color.FromArgb(255, self.Owner.ColorRamp.GetColor(0));
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return PlayerColorRemap.ColorLerp(0.5f, ownerColor, Color.White);
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}
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public ContrailHistory(int trailLength, Color color)
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{
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this.TrailLength = trailLength;
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this.Color = color;
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}
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public void Tick(float2 currentPos)
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{
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positions.Add(currentPos);
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if (positions.Count >= TrailLength)
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positions.RemoveAt(0);
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}
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public void Render(Actor self)
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{
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Color trailStart = Color;
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Color trailEnd = Color.FromArgb(trailStart.A - 255 / TrailLength, trailStart.R,
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trailStart.G, trailStart.B);
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for (int i = positions.Count - 1; i >= 1; --i)
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{
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var conPos = positions[i];
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var nextPos = positions[i - 1];
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if (self.World.LocalShroud.IsVisible(OpenRA.Traits.Util.CellContaining(conPos)) ||
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self.World.LocalShroud.IsVisible(OpenRA.Traits.Util.CellContaining(nextPos)))
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{
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Game.Renderer.LineRenderer.DrawLine(conPos, nextPos, trailStart, trailEnd);
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trailStart = trailEnd;
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trailEnd = Color.FromArgb(trailStart.A - 255 / positions.Count, trailStart.R,
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trailStart.G, trailStart.B);
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}
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}
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}
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}
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}
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