Initial commit

Shapes/ShapeGenerator.cs

@@ -0,0 +1,54 @@
+using System.Diagnostics;
+using Avalonia;
+using Shapes.Shapes;
+
+namespace Shapes;
+
+/// <summary>
+///     A random shape generator
+/// </summary>
+public sealed class ShapeGenerator
+{
+    private const int MinShapeIdx = 1;
+    private const int MaxShapeIdx = 4;
+    private readonly double _maxX;
+    private readonly double _maxY;
+    private readonly Random _random;
+    private int _nextShape;
+
+    /// <summary>
+    ///     Creates a new generator which will create random shapes within the canvas area
+    /// </summary>
+    /// <param name="maxX">The max x-axis value where shapes may be drawn</param>
+    /// <param name="maxY">The max y-axis value where shapes may be drawn</param>
+    public ShapeGenerator(double maxX, double maxY)
+    {
+        _maxX = maxX;
+        _maxY = maxY;
+        _nextShape = MinShapeIdx;
+        _random = Random.Shared;
+    }
+
+    /// <summary>
+    ///     Creates a new random shape at the specified location.
+    ///     A circle, rectangle, square or triangle will be created.
+    ///     The size of the shape is randomly chosen, but will not exceed the max. drawing
+    ///     boundaries - except for at most 5 pixels to allow rendering in any case.
+    ///     Shapes may overlap each other.
+    /// </summary>
+    /// <param name="atLocation">Location of the center point of the new shape</param>
+    /// <returns>The newly created shape</returns>
+    public Shape CreateNewShape(Point atLocation)
+    {
+        int shape = _nextShape++;
+        if (_nextShape > MaxShapeIdx)
+        {
+            _nextShape = MinShapeIdx;
+        }
+
+        // TODO
+        return null!;
+    }
+
+    // TODO
+}