63 lines
1.4 KiB
C#
63 lines
1.4 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2015 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.Drawing;
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using OpenRA.Widgets;
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namespace OpenRA.Mods.D2k.Widgets
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{
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public class SlidingContainerWidget : Widget
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{
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public int2 OpenOffset = int2.Zero;
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public int2 ClosedOffset = int2.Zero;
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public int AnimationLength = 0;
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public Func<bool> IsOpen = () => false;
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public Action AfterOpen = () => { };
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public Action AfterClose = () => { };
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int2 offset;
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int frame;
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public override void Initialize(WidgetArgs args)
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{
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base.Initialize(args);
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// Start in the closed position
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offset = ClosedOffset;
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}
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public override void Tick()
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{
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var open = IsOpen();
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var targetFrame = open ? AnimationLength : 0;
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if (frame == targetFrame)
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return;
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// Update child origin
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frame += open ? 1 : -1;
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offset = int2.Lerp(ClosedOffset, OpenOffset, frame, AnimationLength);
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// Animation is complete
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if (frame == targetFrame)
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{
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if (open)
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AfterOpen();
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else
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AfterClose();
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}
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}
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public override Rectangle EventBounds { get { return Rectangle.Empty; } }
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public override int2 ChildOrigin { get { return RenderOrigin + offset; } }
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}
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}
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