Direction.java

@@ -0,0 +1,3 @@
+public enum Direction {
+    Up, Down, Left, Right
+}

DrawningLocomotive.java

@@ -0,0 +1,106 @@
+import java.awt.*;
+
+class DrawningLocomotive {
+    public EntityLocomotive Locomotive;
+    /// Левая координата отрисовки локомотива
+    private float _startPosX;
+    /// Верхняя координата отрисовки локомотива
+    private float _startPosY;
+    /// Ширина окна отрисовки
+    private Integer _pictureWidth = null;
+    /// Высота окна отрисовки
+    private Integer _pictureHeight = null;
+    /// Ширина отрисовки локомотива
+    private final int _locomotiveWidth = 110;
+    /// Высота отрисовки локомотива
+    private final int _locomotiveHeight = 50;
+    /// Инициализация свойств
+    public void Init(int speed, float weight, Color bodyColor, EntityLocomotive entity)
+    {
+        Locomotive = entity;
+        Locomotive.Init(speed, weight, bodyColor);
+    }
+    /// Установка позиции локомотива
+    public void SetPosition(int x, int y, int width, int height)
+    {
+        if (x < 0 || x + _locomotiveWidth >= width)
+        {
+            return;
+        }
+        if (y < 0 || y + _locomotiveHeight >= height)
+        {
+            return;
+        }
+        _startPosX = x;
+        _startPosY = y;
+        _pictureWidth = width;
+        _pictureHeight = height;
+    }
+
+    public void MoveTransport(Direction direction)
+    {
+        if (_pictureWidth == null || _pictureHeight == null)
+        {
+            return;
+        }
+        switch (direction)
+        {
+            // вправо
+            case Right:
+                if (_startPosX + _locomotiveWidth + Locomotive.Step() < _pictureWidth)
+                {
+                    _startPosX += Locomotive.Step();
+                }
+                else _startPosX = _pictureWidth - _locomotiveWidth;
+                break;
+            //влево
+            case Left:
+                if (_startPosX - Locomotive.Step() >= 0)
+                {
+                    _startPosX -= Locomotive.Step();
+                }
+                else _startPosX = 0;
+                break;
+            //вверх
+            case Up:
+                if (_startPosY - Locomotive.Step() >= 0)
+                {
+                    _startPosY -= Locomotive.Step();
+                }
+                else _startPosY = 0;
+                break;
+            //вниз
+            case Down:
+                if (_startPosY + _locomotiveHeight + Locomotive.Step() < _pictureHeight)
+                {
+                    _startPosY += Locomotive.Step();
+                }
+                else _startPosY = _pictureHeight - _locomotiveHeight;
+                break;
+        }
+    }
+
+    public void DrawTransport() {
+        //TODO: do!
+    }
+
+    public void ChangeBorders(int width, int height)
+    {
+        _pictureWidth = width;
+        _pictureHeight = height;
+        if (_pictureWidth <= _locomotiveWidth || _pictureHeight <= _locomotiveHeight)
+        {
+            _pictureWidth = null;
+            _pictureHeight = null;
+            return;
+        }
+        if (_startPosX + _locomotiveWidth > _pictureWidth)
+        {
+            _startPosX = _pictureWidth - _locomotiveWidth;
+        }
+        if (_startPosY + _locomotiveHeight > _pictureHeight)
+        {
+            _startPosY = _pictureHeight - _locomotiveHeight;
+        }
+    }
+}

EntityLocomotive.java

@@ -1,8 +1,46 @@
 import java.awt.*;
+import java.util.Random;
 
 public class EntityLocomotive {
-    public int Speed;
-    public int Weight;
-    public Color BodyColor;
+    private int Speed;
+    public int getSpeed() {
+        return Speed;
+    }
+    private float Weight;
+    public float getWeight() {
+        return Weight;
+    }
+    private Color BodyColor;
+    public Color getBodyColor() {
+        return BodyColor;
+    }
+
+    public float Step () {
+        return Speed * 100 / Weight;
+    }
+
+    public void Init(int speed, float weight, Color bodyColor)
+    {
+        Random rnd = new Random();
+        if (speed <= 0) {
+            Speed = 50 + rnd.nextInt(100);
+        }
+        else {
+            Speed = speed;
+        }
+
+        if (weight <= 0) {
+            Weight = 40 + rnd.nextInt(30);
+        }
+        else {
+            Weight = weight;
+        }
+        BodyColor = bodyColor;
+    }
+
+
+
+
+
 
 }