Block dragging.

src/sig/Board.java

@@ -300,4 +300,21 @@ public class Board {
     public void mouseExited(MouseEvent e) {
         //System.out.println("Exited: "+e.getPoint());
     }
+    public void mouseDragged(MouseEvent e) {
+        //System.out.println("Dragged: "+e.getPoint());
+        if (clumpClickId!=null&&clickBlock!=null) {
+            List<Block> adjacentBlocks = clumpClickId.getBlocks().stream().filter((block)->Math.abs(clickBlock.y-block.y)==1).collect(Collectors.toList());
+            for (Block b : adjacentBlocks) {
+                if (new Rectangle(b.draw_x,b.draw_y,block_width,block_height).contains(e.getPoint())) {
+                    int oldY = clickBlock.y;
+                    clickBlock.y = b.y;
+                    b.y=oldY;
+                    break;
+                }
+            }
+        }
+    }
+    public void mouseMoved(MouseEvent e) {
+        //System.out.println("Moved: "+e.getPoint());
+    }
 }

src/sig/Meteo.java

@@ -6,8 +6,9 @@ import javax.swing.JFrame;
 
 import java.awt.event.MouseEvent;
 import java.awt.event.MouseListener;
+import java.awt.event.MouseMotionListener;
 
-public class Meteo implements MouseListener{
+public class Meteo implements MouseListener,MouseMotionListener{
     public final static int SCREEN_WIDTH=640;
     public final static int SCREEN_HEIGHT=640;
     public static long FRAMECOUNT=0;
@@ -60,6 +61,7 @@ public class Meteo implements MouseListener{
         }.start();
 
         f.getContentPane().addMouseListener(this);
+        f.getContentPane().addMouseMotionListener(this);
         f.add(p);
         f.setSize(SCREEN_WIDTH,SCREEN_HEIGHT);
         f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
@@ -95,4 +97,14 @@ public class Meteo implements MouseListener{
     public void mouseExited(MouseEvent e) {
         b.mouseExited(e);
     }
+
+    @Override
+    public void mouseDragged(MouseEvent e) {
+        b.mouseDragged(e);
+    }
+
+    @Override
+    public void mouseMoved(MouseEvent e) {
+        b.mouseMoved(e);
+    }
 }