src/main/java/DrawingArmoredCar.java

@@ -17,7 +17,7 @@ public class DrawingArmoredCar {
 
     private int carHeight = 50;
 
-    protected DrawingCaterpillar drawingCaterpillar;
+    protected IDrawingCaterpillar drawingCaterpillar;
 
     public EntityArmoredCar getArmoredCar() {
         return armoredCar;
@@ -26,7 +26,9 @@ public class DrawingArmoredCar {
     public DrawingArmoredCar(int speed, float weight, Color bodyColor) {
         this.armoredCar = new EntityArmoredCar(speed, weight, bodyColor);
         Random r = new Random();
-        this.drawingCaterpillar = new DrawingCaterpillar(r.nextInt(4, 7), bodyColor);
+        IDrawingCaterpillar[] realisations = new IDrawingCaterpillar[]{new DrawingCaterpillar(r.nextInt(4, 7), bodyColor),
+                new DrawingCrossCaterpillar(r.nextInt(4, 7), bodyColor), new DrawingDoubleCaterpillar(r.nextInt(4, 7), bodyColor)};
+        this.drawingCaterpillar = realisations[r.nextInt(3)];
     }
 
     protected DrawingArmoredCar(int speed, float weight, Color bodyColor, int carWidth, int carHeight) {

src/main/java/DrawingCaterpillar.java

@@ -1,6 +1,6 @@
 import java.awt.*;
 
-public class DrawingCaterpillar {
+public class DrawingCaterpillar implements IDrawingCaterpillar {
     private NumRinks numRinks = NumRinks.Four;
     private Color color;
 

src/main/java/DrawingCrossCaterpillar.java

@@ -0,0 +1,43 @@
+import java.awt.*;
+
+public class DrawingCrossCaterpillar implements IDrawingCaterpillar{
+    private NumRinks numRinks = NumRinks.Four;
+    private Color color;
+
+    public DrawingCrossCaterpillar(int n, Color color) {
+        setNumRinks(n);
+        this.color = color;
+    }
+
+    @Override
+    public void setNumRinks(int n) {
+        switch (n) {
+            case 4 -> numRinks = NumRinks.Four;
+
+            case 5 -> numRinks = NumRinks.Five;
+
+            case 6 -> numRinks = NumRinks.Six;
+
+            default -> {
+                break;
+            }
+        }
+    }
+
+    @Override
+    public void DrawCaterpillar(Graphics2D g2d, int startPosX, int startPosY) {
+        color = color != null ? color : Color.YELLOW;
+
+        int size = numRinks == NumRinks.Four ? 15 : 10;
+        int dist = numRinks == NumRinks.Four ? 20 : 13;
+        startPosX = numRinks == NumRinks.Five ? startPosX + 5 : startPosX;
+        for (int i = 0; i < numRinks.val(); i++) {
+            g2d.setPaint(color);
+            g2d.fillOval(startPosX + dist * i, startPosY + 30, size, size);
+            g2d.setColor(Color.BLACK);
+            g2d.setStroke(new BasicStroke(3));
+            g2d.drawLine(startPosX + dist * i, startPosY + 30, startPosX + dist * i + size, startPosY + 30 + size);
+            g2d.drawLine(startPosX + dist * i + size, startPosY + 30, startPosX + dist * i, startPosY + 30 + size);
+        }
+    }
+}

src/main/java/DrawingDoubleCaterpillar.java

@@ -0,0 +1,40 @@
+import java.awt.*;
+
+public class DrawingDoubleCaterpillar implements IDrawingCaterpillar{
+    private NumRinks numRinks = NumRinks.Four;
+    private Color color;
+
+    public DrawingDoubleCaterpillar(int n, Color color) {
+        setNumRinks(n);
+        this.color = color;
+    }
+
+    @Override
+    public void setNumRinks(int n) {
+        switch (n) {
+            case 4 -> numRinks = NumRinks.Four;
+
+            case 5 -> numRinks = NumRinks.Five;
+
+            case 6 -> numRinks = NumRinks.Six;
+
+            default -> {
+                break;
+            }
+        }
+    }
+
+    @Override
+    public void DrawCaterpillar(Graphics2D g2d, int startPosX, int startPosY) {
+        color = color != null ? color : Color.YELLOW;
+        int size = numRinks == NumRinks.Four ? 15 : 10;
+        int dist = numRinks == NumRinks.Four ? 20 : 13;
+        startPosX = numRinks == NumRinks.Five ? startPosX + 5 : startPosX;
+        for (int i = 0; i < numRinks.val(); i++) {
+            g2d.setPaint(color);
+            g2d.fillOval(startPosX + dist * i, startPosY + 30, size, size);
+            g2d.setPaint(Color.WHITE);
+            g2d.fillOval(startPosX + dist * i + size/4, startPosY + 30 + size/4, size/2, size/2);
+        }
+    }
+}

src/main/java/IDrawingCaterpillar.java

@@ -0,0 +1,7 @@
+import java.awt.*;
+
+public interface IDrawingCaterpillar {
+    void setNumRinks(int n);
+
+    void DrawCaterpillar(Graphics2D g2d, int startPosX, int startPosY);
+}