74 lines
2.5 KiB
C#
74 lines
2.5 KiB
C#
#region Copyright & License Information
|
|
/*
|
|
* Copyright 2007-2022 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 OpenRA.Graphics;
|
|
using OpenRA.Primitives;
|
|
|
|
namespace OpenRA.Mods.Common.Graphics
|
|
{
|
|
public class CircleAnnotationRenderable : IRenderable, IFinalizedRenderable
|
|
{
|
|
const int CircleSegments = 32;
|
|
static readonly WVec[] FacingOffsets = Exts.MakeArray(CircleSegments, i => new WVec(1024, 0, 0).Rotate(WRot.FromFacing(i * 256 / CircleSegments)));
|
|
|
|
readonly WPos centerPosition;
|
|
readonly WDist radius;
|
|
readonly int width;
|
|
readonly Color color;
|
|
readonly bool filled;
|
|
|
|
public CircleAnnotationRenderable(WPos centerPosition, WDist radius, int width, Color color, bool filled = false)
|
|
{
|
|
this.centerPosition = centerPosition;
|
|
this.radius = radius;
|
|
this.width = width;
|
|
this.color = color;
|
|
this.filled = filled;
|
|
}
|
|
|
|
public WPos Pos => centerPosition;
|
|
public int ZOffset => 0;
|
|
public bool IsDecoration => true;
|
|
|
|
public IRenderable WithZOffset(int newOffset) { return new CircleAnnotationRenderable(centerPosition, radius, width, color, filled); }
|
|
public IRenderable OffsetBy(in WVec vec) { return new CircleAnnotationRenderable(centerPosition + vec, radius, width, color, filled); }
|
|
public IRenderable AsDecoration() { return this; }
|
|
|
|
public IFinalizedRenderable PrepareRender(WorldRenderer wr) { return this; }
|
|
public void Render(WorldRenderer wr)
|
|
{
|
|
var cr = Game.Renderer.RgbaColorRenderer;
|
|
if (filled)
|
|
{
|
|
var offset = new WVec(radius.Length, radius.Length, 0);
|
|
var tl = wr.Viewport.WorldToViewPx(wr.ScreenPosition(centerPosition - offset));
|
|
var br = wr.Viewport.WorldToViewPx(wr.ScreenPosition(centerPosition + offset));
|
|
|
|
cr.FillEllipse(tl, br, color);
|
|
}
|
|
else
|
|
{
|
|
var r = radius.Length;
|
|
var a = wr.Viewport.WorldToViewPx(wr.ScreenPosition(centerPosition + r * FacingOffsets[CircleSegments - 1] / 1024));
|
|
for (var i = 0; i < CircleSegments; i++)
|
|
{
|
|
var b = wr.Viewport.WorldToViewPx(wr.ScreenPosition(centerPosition + r * FacingOffsets[i] / 1024));
|
|
cr.DrawLine(a, b, width, color);
|
|
a = b;
|
|
}
|
|
}
|
|
}
|
|
|
|
public void RenderDebugGeometry(WorldRenderer wr) { }
|
|
public Rectangle ScreenBounds(WorldRenderer wr) { return Rectangle.Empty; }
|
|
}
|
|
}
|