[gbrainy] New largest diameter logic puzzle

[Jordi Mas <jmas src gnome org>]

commit b6c3c8fd9f4904d8d9044fae95c2b957e3c01188
Author: Jordi Mas <jmas softcatala org>
Date:   Sun Jan 6 00:01:43 2013 +0100

    New largest diameter logic puzzle

 po/POTFILES.in                           |    1 +
 src/Games/GameList.cs                    |    1 +
 src/Games/Logic/PuzzleLargestDiameter.cs |  141 ++++++++++++++++++++++++++++++
 src/Games/Makefile.am                    |    1 +
 4 files changed, 144 insertions(+), 0 deletions(-)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 7bc7269..37112ca 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -75,6 +75,7 @@ src/Games/Logic/PuzzleGridDots.cs
 src/Games/Logic/PuzzleGridNumbers.cs
 src/Games/Logic/PuzzleHandshakes.cs
 src/Games/Logic/PuzzleLargerShape.cs
+src/Games/Logic/PuzzleLargestDiameter.cs
 src/Games/Logic/PuzzleLines.cs
 src/Games/Logic/PuzzleMissingPiece.cs
 src/Games/Logic/PuzzleMissingSlice.cs
diff --git a/src/Games/GameList.cs b/src/Games/GameList.cs
index 40a5daa..16eb6ad 100644
--- a/src/Games/GameList.cs
+++ b/src/Games/GameList.cs
@@ -76,6 +76,7 @@ namespace gbrainy.Games
 			typeof (PuzzleTrains),
 			typeof (PuzzleRelatedNumbers),
 			typeof (PuzzleFindTheNumber),
+			typeof (PuzzleLargestDiameter)
 		};
 
 		static Type[] CalculationInternal = new Type[] 
diff --git a/src/Games/Logic/PuzzleLargestDiameter.cs b/src/Games/Logic/PuzzleLargestDiameter.cs
new file mode 100644
index 0000000..f01c22c
--- /dev/null
+++ b/src/Games/Logic/PuzzleLargestDiameter.cs
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2013 Jordi Mas i HernÃndez <jmas softcatala org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+using System;
+using Cairo;
+
+using gbrainy.Core.Main;
+using gbrainy.Core.Toolkit;
+
+namespace gbrainy.Games.Logic
+{
+	public class PuzzleLargestDiameter : Game
+	{
+		class Arc
+		{
+			public double X { get; set; }
+			public double Y { get; set; }
+			public double Size { get; set; }
+			public double StartAngle { get; set; }
+			public double EndAngle { get; set; }
+		}
+
+		private const int num_arcs = 4;
+		private const int right_answer = 0;
+		private int right_answer_pos = 0;
+		private Arc []arcs;
+		private ArrayListIndicesRandom arcs_indices;
+
+		public override string Name {
+			get {return Translations.GetString ("Largest diameter");}
+		}
+
+		public override string Question {
+			get {return String.Format (
+				Translations.GetString ("If the circles represented by the arcs below were completed, which circle would have the largest diameter? Answer {0}, {1}, {2} or {3}."),
+				Answer.GetMultiOption (0), Answer.GetMultiOption (1), Answer.GetMultiOption (2), Answer.GetMultiOption (3));
+			}
+		}
+
+		public override string Rationale {
+			get {
+				return Translations.GetString ("Less curved is the arc, the larger the circle is.");
+			}
+		}
+
+		protected override void Initialize ()
+		{
+			InitArcs ();
+			RandomizeArcsOrder ();
+
+			Answer.CheckAttributes |= GameAnswerCheckAttributes.MultiOption | GameAnswerCheckAttributes.IgnoreSpaces;		
+			Answer.Correct = Answer.GetMultiOption(right_answer_pos);
+			SetDrawingAreas ();
+		}
+	
+		private void SetDrawingAreas ()
+		{
+			double x = DrawAreaX, y = DrawAreaY + 0.05;
+			DrawableArea drawable_area;
+
+			HorizontalContainer container = new HorizontalContainer (x, y, 0.8, 0.3);
+			AddWidget (container);
+
+			for (int i = 0; i < arcs_indices.Count; i++)
+			{
+				if (i == 2)
+				{
+					container = new HorizontalContainer (x, y + 0.4, 0.8, 0.3);
+					AddWidget (container);
+				}
+
+				drawable_area = new DrawableArea (0.3 + 0.1, 0.3);
+				drawable_area.Data = i;
+				drawable_area.DataEx = Answer.GetMultiOption (i);
+
+				drawable_area.DrawEventHandler += delegate (object sender, DrawEventArgs e)
+				{
+					int n = (int) e.Data;
+					Arc arc = arcs[arcs_indices[n]];
+
+					e.Context.Arc (arc.X, arc.Y, arc.Size, ToRadians (arc.StartAngle), ToRadians (arc.EndAngle));
+					e.Context.Stroke ();
+
+					e.Context.DrawTextCentered (0.2, 0.28, Translations.GetString (String.Format("Arc {0}",  
+						Answer.GetMultiOption(n))));
+
+					e.Context.Stroke();
+				};
+
+				container.AddChild (drawable_area);
+			}
+		}
+
+		private void InitArcs ()
+		{
+			arcs = new Arc [num_arcs];
+			arcs [right_answer] = new Arc () { X = 0.35, Y = 0.42,  Size = 0.35, StartAngle = 215, EndAngle = 260};
+			arcs[1] = new Arc () { X = 0.3, Y = 0.40, Size = 0.25, StartAngle = 215, EndAngle = 290};
+			arcs[2] = new Arc () { X = 0.3, Y = 0.40, Size = 0.25, StartAngle = 215, EndAngle = 270};
+			arcs[3] = new Arc () { X = 0.3, Y = 0.40, Size = 0.25, StartAngle = 215, EndAngle = 270};
+		}
+
+		private void RandomizeArcsOrder ()
+		{
+			arcs_indices = new ArrayListIndicesRandom (num_arcs);
+			arcs_indices.Initialize ();
+			
+			for (int i = 0; i < arcs_indices.Count; i++)
+			{
+				if (arcs_indices[i] == right_answer)
+				{
+					right_answer_pos = i;
+					break;
+				}
+			}
+		}
+
+		double ToRadians (double degrees)
+		{
+			return degrees *  Math.PI / 180;
+		}
+	}
+}
+
+
diff --git a/src/Games/Makefile.am b/src/Games/Makefile.am
index b92875a..c9aac97 100644
--- a/src/Games/Makefile.am
+++ b/src/Games/Makefile.am
@@ -24,6 +24,7 @@ CSDISTFILES =  \
 		$(srcdir)/Logic/PuzzleFourSided.cs			\
 		$(srcdir)/Logic/PuzzleHandshakes.cs			\
 		$(srcdir)/Logic/PuzzleLargerShape.cs			\
+		$(srcdir)/Logic/PuzzleLargestDiameter.cs		\
 		$(srcdir)/Logic/PuzzleLines.cs				\
 		$(srcdir)/Logic/PuzzleGridCircles.cs			\
 		$(srcdir)/Logic/PuzzleGridNumbers.cs			\