Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

OpenRA.Mods.Common/Widgets/ProgressBarWidget.cs

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+#region Copyright & License Information
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * 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;
+using OpenRA.Graphics;
+using OpenRA.Primitives;
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.Common.Widgets
+{
+	public class ProgressBarWidget : Widget
+	{
+		public string Background = "progressbar-bg";
+		public string Bar = "progressbar-thumb";
+		public Size BarMargin = new(2, 2);
+
+		public int Percentage = 0;
+		public bool Indeterminate = false;
+
+		public Func<int> GetPercentage;
+		public Func<bool> IsIndeterminate;
+
+		// Indeterminate bar properties
+		float offset = 0f;
+		float tickStep = 0.04f;
+
+		public ProgressBarWidget()
+		{
+			GetPercentage = () => Percentage;
+			IsIndeterminate = () => Indeterminate;
+		}
+
+		protected ProgressBarWidget(ProgressBarWidget other)
+			: base(other)
+		{
+			Percentage = other.Percentage;
+			GetPercentage = other.GetPercentage;
+			IsIndeterminate = other.IsIndeterminate;
+		}
+
+		public override void Draw()
+		{
+			var rb = RenderBounds;
+			var percentage = GetPercentage();
+			WidgetUtils.DrawPanel(Background, rb);
+
+			var minBarWidth = ChromeProvider.GetMinimumPanelSize(Bar).Width;
+			var maxBarWidth = rb.Width - BarMargin.Width * 2;
+			var barWidth = wasIndeterminate ? maxBarWidth / 4 : percentage * maxBarWidth / 100;
+			barWidth = Math.Max(barWidth, minBarWidth);
+
+			var barOffset = wasIndeterminate ? (int)(0.75 * offset * maxBarWidth) : 0;
+			var barRect = new Rectangle(rb.X + BarMargin.Width + barOffset, rb.Y + BarMargin.Height, barWidth, rb.Height - 2 * BarMargin.Height);
+			WidgetUtils.DrawPanel(Bar, barRect);
+		}
+
+		bool wasIndeterminate;
+		public override void Tick()
+		{
+			var indeterminate = IsIndeterminate();
+			if (indeterminate != wasIndeterminate)
+				offset = 0f;
+
+			if (indeterminate)
+			{
+				offset += tickStep;
+				offset = offset.Clamp(0f, 1f);
+				if (offset == 0f || offset == 1f)
+					tickStep *= -1;
+			}
+
+			wasIndeterminate = indeterminate;
+		}
+
+		public override ProgressBarWidget Clone() { return new ProgressBarWidget(this); }
+	}
+}