b60346abb1
- Use WDist instead of int for fields - Change default values to approximately restore previous releases' default behavior - Improve and clarify descriptions
100 lines
3.1 KiB
C#
100 lines
3.1 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2019 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;
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using System.Collections.Generic;
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using System.Linq;
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using OpenRA.Graphics;
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using OpenRA.Primitives;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common.Traits.Render
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{
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[Desc("Changes the visual Z position periodically.")]
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public class HoversInfo : ConditionalTraitInfo, Requires<IMoveInfo>
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{
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[Desc("Maximum visual Z axis distance relative to actual position + InitialHeight.")]
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public readonly WDist OffsetModifier = new WDist(-43);
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[Desc("Actual altitude of actor needs to be this or higher to enable hover effect.")]
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public readonly WDist MinHoveringAltitude = WDist.Zero;
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[Desc("Amount of ticks it takes to reach OffsetModifier.")]
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public readonly int Ticks = 6;
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[Desc("Amount of ticks it takes to fall to the ground from the highest point when disabled.")]
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public readonly int FallTicks = 10;
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[Desc("Amount of ticks it takes to rise from the ground to InitialHeight.")]
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public readonly int RiseTicks = 20;
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[Desc("Initial Z axis modifier relative to actual position.")]
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public readonly WDist InitialHeight = new WDist(43);
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public override object Create(ActorInitializer init) { return new Hovers(this, init.Self); }
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}
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public class Hovers : ConditionalTrait<HoversInfo>, IRenderModifier, ITick
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{
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readonly HoversInfo info;
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readonly int stepPercentage;
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readonly int fallTickHeight;
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int ticks;
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WVec worldVisualOffset;
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public Hovers(HoversInfo info, Actor self)
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: base(info)
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{
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this.info = info;
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stepPercentage = 256 / info.Ticks;
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fallTickHeight = (info.InitialHeight + info.OffsetModifier).Length / info.FallTicks;
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}
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void ITick.Tick(Actor self)
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{
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if (IsTraitDisabled)
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{
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if (worldVisualOffset.Z < 0)
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return;
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var fallTicks = worldVisualOffset.Z / fallTickHeight - 1;
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worldVisualOffset = new WVec(0, 0, fallTickHeight * fallTicks);
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}
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else
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ticks++;
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}
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IEnumerable<IRenderable> IRenderModifier.ModifyRender(Actor self, WorldRenderer wr, IEnumerable<IRenderable> r)
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{
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if (!IsTraitDisabled)
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{
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var visualOffset = self.World.Map.DistanceAboveTerrain(self.CenterPosition) >= info.MinHoveringAltitude
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? new WAngle(ticks % (info.Ticks * 4) * stepPercentage).Sin() : 0;
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var currentHeight = info.OffsetModifier.Length * visualOffset / 1024 + info.InitialHeight.Length;
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// This part rises the actor up from disabled state
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if (worldVisualOffset.Z < currentHeight)
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currentHeight = Math.Min(worldVisualOffset.Z + info.InitialHeight.Length / info.RiseTicks, currentHeight);
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worldVisualOffset = new WVec(0, 0, currentHeight);
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}
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return r.Select(a => a.OffsetBy(worldVisualOffset));
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}
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IEnumerable<Rectangle> IRenderModifier.ModifyScreenBounds(Actor self, WorldRenderer wr, IEnumerable<Rectangle> bounds)
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{
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return bounds;
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}
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}
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}
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