85 lines
2.6 KiB
C#
85 lines
2.6 KiB
C#
#region Copyright & License Information
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/*
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* Copyright (c) The OpenRA Developers and Contributors
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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 OpenRA.Graphics;
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using OpenRA.Primitives;
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namespace OpenRA.Mods.Common.Graphics
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{
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/// <summary>
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/// Render the current editor area selection or paste region.
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/// </summary>
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public class EditorSelectionAnnotationRenderable : IRenderable, IFinalizedRenderable
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{
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readonly Color color;
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readonly CellRegion bounds;
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readonly int2 altPixelOffset;
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readonly CPos? offset;
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public EditorSelectionAnnotationRenderable(CellRegion bounds, Color color, int2 altPixelOffset, CPos? offset)
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{
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this.bounds = bounds;
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this.color = color;
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this.altPixelOffset = altPixelOffset;
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this.offset = offset;
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}
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public WPos Pos => WPos.Zero;
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public int ZOffset => 0;
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public bool IsDecoration => true;
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public IRenderable WithZOffset(int newOffset) { return this; }
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public IRenderable OffsetBy(in WVec vec) { return new EditorSelectionAnnotationRenderable(bounds, color, new int2(vec.X, vec.Y), offset); }
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public IRenderable AsDecoration() { return this; }
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public IFinalizedRenderable PrepareRender(WorldRenderer wr) { return this; }
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public void Render(WorldRenderer wr)
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{
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if (bounds == null)
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return;
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const int Width = 1;
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var map = wr.World.Map;
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var originalWPos = map.CenterOfCell(bounds.TopLeft);
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var wposOffset = offset.HasValue ? map.CenterOfCell(offset.Value) - originalWPos : WVec.Zero;
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foreach (var cellPos in bounds.CellCoords)
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{
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var uv = cellPos.ToMPos(map);
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if (!map.Height.Contains(uv))
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continue;
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var ramp = map.Grid.Ramps[map.Ramp[uv]];
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var pos = map.CenterOfCell(cellPos) - new WVec(0, 0, ramp.CenterHeightOffset);
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foreach (var p in ramp.Polygons)
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{
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for (var i = 0; i < p.Length; i++)
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{
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var j = (i + 1) % p.Length;
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var start = pos + p[i];
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var end = pos + p[j];
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Game.Renderer.RgbaColorRenderer.DrawLine(
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wr.Viewport.WorldToViewPx(wr.ScreenPosition(start + wposOffset)) + altPixelOffset,
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wr.Viewport.WorldToViewPx(wr.Screen3DPosition(end + wposOffset)) + altPixelOffset,
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Width, color, color);
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}
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}
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}
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}
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public void RenderDebugGeometry(WorldRenderer wr) { }
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public Rectangle ScreenBounds(WorldRenderer wr) { return Rectangle.Empty; }
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}
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}
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