Files
OpenRA/OpenRA.Mods.Common/Graphics/SelectionBoxRenderable.cs
2016-02-21 16:30:48 +00:00

67 lines
2.3 KiB
C#

#region Copyright & License Information
/*
* Copyright 2007-2016 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, either version 3 of
* the License, or (at your option) any later version. For more
* information, see COPYING.
*/
#endregion
using System.Drawing;
using OpenRA.Graphics;
namespace OpenRA.Mods.Common.Graphics
{
public struct SelectionBoxRenderable : IRenderable, IFinalizedRenderable
{
readonly WPos pos;
readonly Rectangle visualBounds;
readonly Color color;
public SelectionBoxRenderable(Actor actor, Color color)
: this(actor.CenterPosition, actor.VisualBounds, color) { }
public SelectionBoxRenderable(WPos pos, Rectangle visualBounds, Color color)
{
this.pos = pos;
this.visualBounds = visualBounds;
this.color = color;
}
public WPos Pos { get { return pos; } }
public PaletteReference Palette { get { return null; } }
public int ZOffset { get { return 0; } }
public bool IsDecoration { get { return true; } }
public IRenderable WithPalette(PaletteReference newPalette) { return this; }
public IRenderable WithZOffset(int newOffset) { return this; }
public IRenderable OffsetBy(WVec vec) { return new SelectionBoxRenderable(pos + vec, visualBounds, color); }
public IRenderable AsDecoration() { return this; }
public IFinalizedRenderable PrepareRender(WorldRenderer wr) { return this; }
public void Render(WorldRenderer wr)
{
var iz = 1 / wr.Viewport.Zoom;
var screenPos = wr.ScreenPxPosition(pos);
var tl = screenPos + new float2(visualBounds.Left, visualBounds.Top);
var br = screenPos + new float2(visualBounds.Right, visualBounds.Bottom);
var tr = new float2(br.X, tl.Y);
var bl = new float2(tl.X, br.Y);
var u = new float2(4 * iz, 0);
var v = new float2(0, 4 * iz);
var wcr = Game.Renderer.WorldRgbaColorRenderer;
wcr.DrawLine(new[] { tl + u, tl, tl + v }, iz, color, true);
wcr.DrawLine(new[] { tr - u, tr, tr + v }, iz, color, true);
wcr.DrawLine(new[] { br - u, br, br - v }, iz, color, true);
wcr.DrawLine(new[] { bl + u, bl, bl - v }, iz, color, true);
}
public void RenderDebugGeometry(WorldRenderer wr) { }
public Rectangle ScreenBounds(WorldRenderer wr) { return Rectangle.Empty; }
}
}