Add Dialog class a showung on Interaction

src/main/java/Dialog.java

@@ -0,0 +1,60 @@
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+public class Dialog {
+    private String text;
+    private int textLength;
+    private Timer timer;
+    private JPanel dialogBar;
+    private int charNumber;
+
+    Dialog(String text, JPanel dialogBar) {
+        this.text = text;
+        textLength = text.length() + 1;
+        this.dialogBar = dialogBar;
+        charNumber = 0;
+    }
+
+    private JLabel prepareDialogBar(String string) {
+        Font f1 = new Font("Times New Roman", Font.PLAIN, 20);
+
+        JLabel text = new JLabel();
+        text.setFont(f1);
+        text.setForeground(Color.red);
+        text.setVisible(true);
+        text.setText(string);
+        Dimension size = text.getPreferredSize();
+        text.setBounds(20, 20, size.width, size.height);
+
+        return text;
+    }
+
+    private void showByChar() {
+        String string = text.substring(0, charNumber);
+        JLabel textToShow = prepareDialogBar(string);
+        if (dialogBar.getComponentCount() != 0)
+            dialogBar.remove(0);
+        dialogBar.add(textToShow);
+        charNumber++;
+        if (charNumber == textLength) {
+            timer.stop();
+        }
+    }
+
+    public void showText() {
+        charNumber = 0;
+        dialogBar.setVisible(true);
+        timer = new Timer(17, new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                showByChar();
+                dialogBar.repaint();
+            }
+        });
+        timer.start();
+    }
+
+}
+

src/main/java/InteractionCell.java

@@ -2,6 +2,7 @@ import java.awt.*;
 
 public class InteractionCell extends Cell {
     private String message;
+    private Dialog dialog;
 
     InteractionCell(){
         super(-1,-1, WindowOfFreeMove.CELL_SIZE, Color.ORANGE);
@@ -12,8 +13,16 @@ public class InteractionCell extends Cell {
         this.message = message;
     }
 
+    InteractionCell(int x, int y, Dialog dialog) {
+        super(x, y, WindowOfFreeMove.CELL_SIZE, Color.ORANGE);
+        this.dialog = dialog;
+    }
+
     public void startEvent() {
+        if (message != null)
             System.out.println(message);
+        if (dialog != null)
+            dialog.showText();
     }
 
     @Override

src/main/java/WindowOfFreeMove.java

@@ -71,6 +71,7 @@ public class WindowOfFreeMove extends JFrame {
         dialogBar.setBounds(0, WindowOfFreeMove.CELL_SIZE * WindowOfFreeMove.CANVAS_HEIGHT * 3 / 4, WindowOfFreeMove.CELL_SIZE * WindowOfFreeMove.CANVAS_WIDTH, WindowOfFreeMove.CELL_SIZE * WindowOfFreeMove.CANVAS_HEIGHT / 4);
         dialogBar.setBackground(Color.BLACK);
         dialogBar.setVisible(false);
+        dialogBar.setLayout(null);
 
         inputTimer = new Timer(10, new ActionListener() {
             @Override
@@ -150,7 +151,7 @@ public class WindowOfFreeMove extends JFrame {
 
         m1.addMoveToEvent(new EventMoveToCell(1, 1, 8, 8, m2, this));
         m1.addMoveToEvent(new EventMoveToCell(4, 3, 8, 1, m4, this));
-        m1.addInteractionEvent(new InteractionCell(3, 5, "první zpráva"));
+        m1.addInteractionEvent(new InteractionCell(3, 5, new Dialog("Prvni zprava", dialogBar)));
         m1.addInteractionEvent(new InteractionCell(5, 5, "druhá zpráva"));
 
         m2.addMoveToEvent(new EventMoveToCell(2, 1, 8, 8, m3, this));