done lab5

MotorBoat/MotorBoat/BoatGenericCollection.cs

@@ -69,7 +69,7 @@ namespace MotorBoat.Generics
             {
                 return false;
             }
-            return collect?._collection.Insert(obj) ?? false;
+            return (bool)collect?._collection.Insert(obj);
         }
 
         /// <summary>
@@ -78,14 +78,14 @@ namespace MotorBoat.Generics
         /// <param name="collect"></param>
         /// <param name="pos"></param>
         /// <returns></returns>
-        public static T? operator -(BoatsGenericCollection<T, U>? collect, int pos)
+        public static bool operator -(BoatsGenericCollection<T, U>? collect, int pos)
         {
             T? obj = collect._collection[pos];
             if (obj != null)
             {
                 collect._collection.Remove(pos);
             }
-            return obj;
+            return false;
         }
 
         /// <summary>

MotorBoat/MotorBoat/EntityBoat.cs

@@ -43,5 +43,9 @@ namespace MotorBoat.Entities
             Weight = weight;
             BodyColor = bodyColor;
         }
+        internal void setBodyColor(Color color)
+        {
+            BodyColor = color;
+        }
     }
 }

MotorBoat/MotorBoat/EntityMotorBoat.cs

@@ -44,5 +44,10 @@ namespace MotorBoat.Entities
             Engine = engine;
             Glass = glass;
         }
+
+        internal void setAdditionalColor(Color color)
+        {
+            AdditionalColor = color;
+        }
     }
 }

MotorBoat/MotorBoat/FormBoatCollection.cs

@@ -114,18 +114,29 @@ namespace MotorBoat
             if (obj == null)
                 return;
 
-            FormMotorBoat form = new();
+            var FormBoatConfig = new FormBoatConfig();
-            if (form.ShowDialog() == DialogResult.OK)
+            FormBoatConfig.AddEvent(AddBoat);
+            FormBoatConfig.Show();
+        }
+
+        private void AddBoat(DrawningBoat drawningBoat)
+        {
+            if (listBoxStorages.SelectedIndex == -1)
+                return;
+
+            var obj = _storage[listBoxStorages.SelectedItem.ToString() ?? string.Empty];
+
+            if (obj == null)
+                return;
+
+            if (obj + drawningBoat)
             {
-                if (obj + form.SelectedBoat)
+                MessageBox.Show("Объект добавлен");
-                {
+                pictureBoxCollection.Image = obj.ShowBoats();
-                    MessageBox.Show("Объект добавлен");
+            }
-                    pictureBoxCollection.Image = obj.ShowBoats();
+            else
-                }
+            {
-                else
+                MessageBox.Show("Не удалось добавить объект");
-                {
-                    MessageBox.Show("Не удалось добавить объект");
-                }
             }
         }
 

MotorBoat/MotorBoat/FormBoatConfig.Designer.cs

@@ -0,0 +1,393 @@
+namespace MotorBoat
+{
+    partial class FormBoatConfig
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            groupBox1 = new GroupBox();
+            labelModifiedObject = new Label();
+            labelSimpleObject = new Label();
+            PanelColor = new GroupBox();
+            panelMilky = new Panel();
+            panelRed = new Panel();
+            panel8 = new Panel();
+            panelCherry = new Panel();
+            panelPeach = new Panel();
+            panelGreen = new Panel();
+            panelOrange = new Panel();
+            panelGrey = new Panel();
+            panelBrown = new Panel();
+            checkBoxEngine = new CheckBox();
+            checkBoxGlass = new CheckBox();
+            label2 = new Label();
+            label1 = new Label();
+            numericUpDownWeight = new NumericUpDown();
+            numericUpDownSpeed = new NumericUpDown();
+            buttonAdd = new Button();
+            buttonCancel = new Button();
+            PanelObject = new Panel();
+            labelBodyColor = new Label();
+            labelAdditionalColor = new Label();
+            pictureBoxObject = new PictureBox();
+            groupBox1.SuspendLayout();
+            PanelColor.SuspendLayout();
+            panelRed.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownWeight).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownSpeed).BeginInit();
+            PanelObject.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)pictureBoxObject).BeginInit();
+            SuspendLayout();
+            // 
+            // groupBox1
+            // 
+            groupBox1.Controls.Add(labelModifiedObject);
+            groupBox1.Controls.Add(labelSimpleObject);
+            groupBox1.Controls.Add(PanelColor);
+            groupBox1.Controls.Add(checkBoxEngine);
+            groupBox1.Controls.Add(checkBoxGlass);
+            groupBox1.Controls.Add(label2);
+            groupBox1.Controls.Add(label1);
+            groupBox1.Controls.Add(numericUpDownWeight);
+            groupBox1.Controls.Add(numericUpDownSpeed);
+            groupBox1.Location = new Point(12, 12);
+            groupBox1.Name = "groupBox1";
+            groupBox1.Size = new Size(499, 264);
+            groupBox1.TabIndex = 1;
+            groupBox1.TabStop = false;
+            groupBox1.Text = "Настройки объекта";
+            // 
+            // labelModifiedObject
+            // 
+            labelModifiedObject.AllowDrop = true;
+            labelModifiedObject.BorderStyle = BorderStyle.FixedSingle;
+            labelModifiedObject.Location = new Point(368, 178);
+            labelModifiedObject.Margin = new Padding(0);
+            labelModifiedObject.Name = "labelModifiedObject";
+            labelModifiedObject.Padding = new Padding(12);
+            labelModifiedObject.Size = new Size(119, 42);
+            labelModifiedObject.TabIndex = 10;
+            labelModifiedObject.Text = "Продвинутый";
+            labelModifiedObject.TextAlign = ContentAlignment.TopCenter;
+            labelModifiedObject.MouseDown += labelSimpleObject_MouseDown;
+            // 
+            // labelSimpleObject
+            // 
+            labelSimpleObject.AllowDrop = true;
+            labelSimpleObject.BorderStyle = BorderStyle.FixedSingle;
+            labelSimpleObject.Location = new Point(242, 178);
+            labelSimpleObject.Name = "labelSimpleObject";
+            labelSimpleObject.Padding = new Padding(12);
+            labelSimpleObject.Size = new Size(120, 42);
+            labelSimpleObject.TabIndex = 9;
+            labelSimpleObject.Text = "Простой";
+            labelSimpleObject.TextAlign = ContentAlignment.TopCenter;
+            labelSimpleObject.MouseDown += labelSimpleObject_MouseDown;
+            // 
+            // PanelColor
+            // 
+            PanelColor.Controls.Add(panelMilky);
+            PanelColor.Controls.Add(panelRed);
+            PanelColor.Controls.Add(panelCherry);
+            PanelColor.Controls.Add(panelPeach);
+            PanelColor.Controls.Add(panelGreen);
+            PanelColor.Controls.Add(panelOrange);
+            PanelColor.Controls.Add(panelGrey);
+            PanelColor.Controls.Add(panelBrown);
+            PanelColor.Location = new Point(242, 22);
+            PanelColor.Name = "PanelColor";
+            PanelColor.Size = new Size(245, 141);
+            PanelColor.TabIndex = 8;
+            PanelColor.TabStop = false;
+            PanelColor.Text = "Выбор цвета";
+            // 
+            // panelMilky
+            // 
+            panelMilky.AllowDrop = true;
+            panelMilky.BackColor = Color.LightGoldenrodYellow;
+            panelMilky.BorderStyle = BorderStyle.FixedSingle;
+            panelMilky.Location = new Point(126, 19);
+            panelMilky.Name = "panelMilky";
+            panelMilky.Size = new Size(50, 50);
+            panelMilky.TabIndex = 7;
+            // 
+            // panelRed
+            // 
+            panelRed.AllowDrop = true;
+            panelRed.BackColor = Color.Firebrick;
+            panelRed.BorderStyle = BorderStyle.FixedSingle;
+            panelRed.Controls.Add(panel8);
+            panelRed.Location = new Point(70, 19);
+            panelRed.Name = "panelRed";
+            panelRed.Size = new Size(50, 50);
+            panelRed.TabIndex = 6;
+            // 
+            // panel8
+            // 
+            panel8.BackColor = Color.FromArgb(255, 255, 192);
+            panel8.Location = new Point(53, 8);
+            panel8.Name = "panel8";
+            panel8.Size = new Size(50, 50);
+            panel8.TabIndex = 7;
+            // 
+            // panelCherry
+            // 
+            panelCherry.AllowDrop = true;
+            panelCherry.BackColor = Color.Maroon;
+            panelCherry.BorderStyle = BorderStyle.FixedSingle;
+            panelCherry.Location = new Point(14, 78);
+            panelCherry.Name = "panelCherry";
+            panelCherry.Size = new Size(50, 50);
+            panelCherry.TabIndex = 5;
+            // 
+            // panelPeach
+            // 
+            panelPeach.AllowDrop = true;
+            panelPeach.BackColor = Color.SandyBrown;
+            panelPeach.BorderStyle = BorderStyle.FixedSingle;
+            panelPeach.Location = new Point(182, 19);
+            panelPeach.Name = "panelPeach";
+            panelPeach.Size = new Size(50, 50);
+            panelPeach.TabIndex = 4;
+            // 
+            // panelGreen
+            // 
+            panelGreen.AllowDrop = true;
+            panelGreen.BackColor = Color.DarkGreen;
+            panelGreen.BorderStyle = BorderStyle.FixedSingle;
+            panelGreen.Location = new Point(70, 78);
+            panelGreen.Name = "panelGreen";
+            panelGreen.Size = new Size(50, 50);
+            panelGreen.TabIndex = 3;
+            // 
+            // panelOrange
+            // 
+            panelOrange.AllowDrop = true;
+            panelOrange.BackColor = Color.Orange;
+            panelOrange.BorderStyle = BorderStyle.FixedSingle;
+            panelOrange.Location = new Point(126, 78);
+            panelOrange.Name = "panelOrange";
+            panelOrange.Size = new Size(50, 50);
+            panelOrange.TabIndex = 2;
+            // 
+            // panelGrey
+            // 
+            panelGrey.AllowDrop = true;
+            panelGrey.BackColor = Color.Silver;
+            panelGrey.BorderStyle = BorderStyle.FixedSingle;
+            panelGrey.Location = new Point(182, 78);
+            panelGrey.Name = "panelGrey";
+            panelGrey.Size = new Size(50, 50);
+            panelGrey.TabIndex = 1;
+            // 
+            // panelBrown
+            // 
+            panelBrown.AllowDrop = true;
+            panelBrown.BackColor = Color.SaddleBrown;
+            panelBrown.BorderStyle = BorderStyle.FixedSingle;
+            panelBrown.Location = new Point(14, 19);
+            panelBrown.Name = "panelBrown";
+            panelBrown.Size = new Size(50, 50);
+            panelBrown.TabIndex = 0;
+            // 
+            // checkBoxEngine
+            // 
+            checkBoxEngine.AutoSize = true;
+            checkBoxEngine.Location = new Point(11, 126);
+            checkBoxEngine.Name = "checkBoxEngine";
+            checkBoxEngine.Size = new Size(225, 19);
+            checkBoxEngine.TabIndex = 7;
+            checkBoxEngine.Text = "Признак наличия защитного стекла";
+            checkBoxEngine.UseVisualStyleBackColor = true;
+            // 
+            // checkBoxGlass
+            // 
+            checkBoxGlass.AutoSize = true;
+            checkBoxGlass.Location = new Point(11, 99);
+            checkBoxGlass.Name = "checkBoxGlass";
+            checkBoxGlass.Size = new Size(180, 19);
+            checkBoxGlass.TabIndex = 6;
+            checkBoxGlass.Text = "Признак наличия двигателя";
+            checkBoxGlass.UseVisualStyleBackColor = true;
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(11, 51);
+            label2.Name = "label2";
+            label2.Size = new Size(29, 15);
+            label2.TabIndex = 5;
+            label2.Text = "Вес:";
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(8, 24);
+            label1.Name = "label1";
+            label1.Size = new Size(62, 15);
+            label1.TabIndex = 4;
+            label1.Text = "Скорость:";
+            // 
+            // numericUpDownWeight
+            // 
+            numericUpDownWeight.Location = new Point(74, 51);
+            numericUpDownWeight.Maximum = new decimal(new int[] { 1000, 0, 0, 0 });
+            numericUpDownWeight.Minimum = new decimal(new int[] { 100, 0, 0, 0 });
+            numericUpDownWeight.Name = "numericUpDownWeight";
+            numericUpDownWeight.Size = new Size(120, 23);
+            numericUpDownWeight.TabIndex = 3;
+            numericUpDownWeight.Value = new decimal(new int[] { 100, 0, 0, 0 });
+            // 
+            // numericUpDownSpeed
+            // 
+            numericUpDownSpeed.Location = new Point(74, 22);
+            numericUpDownSpeed.Maximum = new decimal(new int[] { 1000, 0, 0, 0 });
+            numericUpDownSpeed.Minimum = new decimal(new int[] { 100, 0, 0, 0 });
+            numericUpDownSpeed.Name = "numericUpDownSpeed";
+            numericUpDownSpeed.Size = new Size(120, 23);
+            numericUpDownSpeed.TabIndex = 2;
+            numericUpDownSpeed.Value = new decimal(new int[] { 100, 0, 0, 0 });
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(544, 230);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(112, 46);
+            buttonAdd.TabIndex = 13;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += buttonAdd_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(661, 230);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(111, 46);
+            buttonCancel.TabIndex = 14;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            // 
+            // PanelObject
+            // 
+            PanelObject.AllowDrop = true;
+            PanelObject.Controls.Add(labelBodyColor);
+            PanelObject.Controls.Add(labelAdditionalColor);
+            PanelObject.Controls.Add(pictureBoxObject);
+            PanelObject.Location = new Point(527, 16);
+            PanelObject.Name = "PanelObject";
+            PanelObject.Size = new Size(259, 208);
+            PanelObject.TabIndex = 15;
+            PanelObject.DragDrop += labelObject_DragDrop;
+            PanelObject.DragEnter += labelObject_DragEnter;
+            // 
+            // labelBodyColor
+            // 
+            labelBodyColor.AllowDrop = true;
+            labelBodyColor.BorderStyle = BorderStyle.FixedSingle;
+            labelBodyColor.Location = new Point(16, 5);
+            labelBodyColor.Margin = new Padding(0);
+            labelBodyColor.Name = "labelBodyColor";
+            labelBodyColor.Padding = new Padding(12);
+            labelBodyColor.Size = new Size(112, 48);
+            labelBodyColor.TabIndex = 14;
+            labelBodyColor.Text = "Цвет";
+            labelBodyColor.TextAlign = ContentAlignment.TopCenter;
+            labelBodyColor.DragDrop += labelBodyColor_DragDrop;
+            labelBodyColor.DragEnter += labelColor_DragEnter;
+            // 
+            // labelAdditionalColor
+            // 
+            labelAdditionalColor.AllowDrop = true;
+            labelAdditionalColor.BorderStyle = BorderStyle.FixedSingle;
+            labelAdditionalColor.Location = new Point(133, 5);
+            labelAdditionalColor.Margin = new Padding(0);
+            labelAdditionalColor.Name = "labelAdditionalColor";
+            labelAdditionalColor.Padding = new Padding(12);
+            labelAdditionalColor.Size = new Size(112, 48);
+            labelAdditionalColor.TabIndex = 13;
+            labelAdditionalColor.Text = "Доп. цвет";
+            labelAdditionalColor.TextAlign = ContentAlignment.TopCenter;
+            labelAdditionalColor.DragDrop += labelAdditionalColor_DragDrop;
+            labelAdditionalColor.DragEnter += labelColor_DragEnter;
+            // 
+            // pictureBoxObject
+            // 
+            pictureBoxObject.Location = new Point(16, 61);
+            pictureBoxObject.Name = "pictureBoxObject";
+            pictureBoxObject.Size = new Size(229, 137);
+            pictureBoxObject.TabIndex = 4;
+            pictureBoxObject.TabStop = false;
+            // 
+            // FormBoatConfig
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(802, 288);
+            Controls.Add(PanelObject);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonAdd);
+            Controls.Add(groupBox1);
+            Name = "FormBoatConfig";
+            Text = "Создание объекта";
+            groupBox1.ResumeLayout(false);
+            groupBox1.PerformLayout();
+            PanelColor.ResumeLayout(false);
+            panelRed.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)numericUpDownWeight).EndInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownSpeed).EndInit();
+            PanelObject.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)pictureBoxObject).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+        private GroupBox groupBox1;
+        private CheckBox checkBoxEngine;
+        private CheckBox checkBoxGlass;
+        private Label label2;
+        private Label label1;
+        private NumericUpDown numericUpDownWeight;
+        private NumericUpDown numericUpDownSpeed;
+        private GroupBox PanelColor;
+        private Panel panelMilky;
+        private Panel panelRed;
+        private Panel panel8;
+        private Panel panelCherry;
+        private Panel panelPeach;
+        private Panel panelGreen;
+        private Panel panelOrange;
+        private Panel panelGrey;
+        private Panel panelBrown;
+        private Label labelModifiedObject;
+        private Label labelSimpleObject;
+        private Button buttonAdd;
+        private Button buttonCancel;
+        private Panel PanelObject;
+        private PictureBox pictureBoxObject;
+        private Label labelBodyColor;
+        private Label labelAdditionalColor;
+    }
+}

MotorBoat/MotorBoat/FormBoatConfig.cs

@@ -0,0 +1,168 @@
+using MotorBoat.DrawningObjects;
+using MotorBoat.Entities;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace MotorBoat
+{
+    public partial class FormBoatConfig : Form
+    {
+        /// <summary>
+        /// Переменная-выбранная лодка
+        /// </summary>
+        DrawningBoat? _boat = null;
+
+        /// <summary>
+        /// Событие
+        /// </summary>
+        public event Action<DrawningBoat>? EventAddBoat;
+
+        /// <summary>
+        /// Конструктор
+        /// </summary>
+        public FormBoatConfig()
+        {
+            InitializeComponent();
+            panelBrown.MouseDown += PanelColor_MouseDown;
+            panelRed.MouseDown += PanelColor_MouseDown;
+            panelMilky.MouseDown += PanelColor_MouseDown;
+            panelPeach.MouseDown += PanelColor_MouseDown;
+            panelGrey.MouseDown += PanelColor_MouseDown;
+            panelOrange.MouseDown += PanelColor_MouseDown;
+            panelGreen.MouseDown += PanelColor_MouseDown;
+            panelCherry.MouseDown += PanelColor_MouseDown;
+
+            buttonCancel.Click += (s, e) => Close();
+        }
+
+        /// <summary>
+        /// Отрисовать лодку
+        /// </summary>
+        private void DrawBoat()
+        {
+            Bitmap bmp = new(pictureBoxObject.Width, pictureBoxObject.Height);
+            Graphics gr = Graphics.FromImage(bmp);
+            _boat?.SetPosition(5, 5);
+            _boat?.DrawTransport(gr);
+            pictureBoxObject.Image = bmp;
+        }
+
+        /// <summary>
+        /// Передаем информацию при нажатии на Label
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void labelSimpleObject_MouseDown(object sender, MouseEventArgs e)
+        {
+            (sender as Label)?.DoDragDrop((sender as Label)?.Name, DragDropEffects.Move | DragDropEffects.Copy);
+        }
+
+        /// <summary>
+        /// Проверка получаемой информации (ее типа на соответствие требуемому)
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void labelObject_DragEnter(object sender, DragEventArgs e)
+        {
+            if (e.Data?.GetDataPresent(DataFormats.Text) ?? false)
+            {
+                e.Effect = DragDropEffects.Copy;
+            }
+            else
+            {
+                e.Effect = DragDropEffects.None;
+            }
+        }
+
+        /// <summary>
+        /// Действия при приеме перетаскиваемой информации
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void labelObject_DragDrop(object sender, DragEventArgs e)
+        {
+            switch (e.Data?.GetData(DataFormats.Text).ToString())
+            {
+                case "labelSimpleObject":
+                    _boat = new DrawningBoat((int)numericUpDownSpeed.Value,
+                   (int)numericUpDownWeight.Value, Color.White, pictureBoxObject.Width, pictureBoxObject.Height);
+                    break;
+                case "labelModifiedObject":
+                    _boat = new DrawningMotorBoat((int)numericUpDownSpeed.Value,
+                   (int)numericUpDownWeight.Value, Color.White, Color.Black, checkBoxGlass.Checked,
+                   checkBoxEngine.Checked, pictureBoxObject.Width, pictureBoxObject.Height);
+                    break;
+            }
+            DrawBoat();
+        }
+
+        /// <summary>
+        /// Добавление лодки
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void PanelColor_MouseDown(object sender, MouseEventArgs e)
+        {
+            (sender as Panel)?.DoDragDrop((sender as Panel)?.BackColor, DragDropEffects.Move | DragDropEffects.Copy);
+        }
+
+        /// <summary>
+        /// Добавление события
+        /// </summary>
+        /// <param name="ev">Привязанный метод</param>
+        internal void AddEvent(Action<DrawningBoat> ev)
+        {
+            if (EventAddBoat == null)
+            {
+                EventAddBoat = ev;
+            }
+            else
+            {
+                EventAddBoat += ev;
+            }
+        }
+
+        private void buttonAdd_Click(object sender, EventArgs e)
+        {
+            EventAddBoat?.Invoke(_boat);
+            Close();
+        }
+
+        private void labelBodyColor_DragDrop(object sender, DragEventArgs e)
+        {
+            if (_boat == null)
+                return;
+            _boat?.EntityBoat?.setBodyColor((Color)e.Data.GetData(typeof(Color)));
+            DrawBoat();
+        }
+
+        private void labelAdditionalColor_DragDrop(object sender, DragEventArgs e)
+        {
+            if (_boat == null)
+                return;
+            if (!(_boat is DrawningMotorBoat))
+                return;
+            (_boat.EntityBoat as EntityMotorBoat)?.setAdditionalColor(color: (Color)e.Data.GetData(typeof(Color)));
+            DrawBoat();
+        }
+
+        private void labelColor_DragEnter(object sender, DragEventArgs e)
+        {
+            if (e.Data?.GetDataPresent(typeof(Color)) ?? false)
+            {
+                e.Effect = DragDropEffects.Copy;
+            }
+            else
+            {
+                e.Effect = DragDropEffects.None;
+            }
+        }
+    }
+}

MotorBoat/MotorBoat/FormBoatConfig.resx

@@ -0,0 +1,60 @@
+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

MotorBoat/MotorBoat/SetGeneric.cs

@@ -108,7 +108,7 @@ namespace MotorBoat.Generics
         /// </summary>
         /// <param name="maxShips"></param>
         /// <returns></returns>
-        public IEnumerable<T> GetBoats(int? maxBoats = null)
+        public IEnumerable<T?> GetBoats(int? maxBoats = null)
         {
             for (int i = 0; i < _places.Count; ++i)
             {