Suppose we have 3 rows of square (#####

      #####

     #####)

Suppose a ball is shooting by a bat.

If ball collide any squares, I want remove that square. (square are in move )

Do you think the best way of doing this using arrayList?

And do you think the best way for drawing square is using nested loop?

1. // Constants of the brick wall
2. final int marginX = 20;
3. final int marginY = 20;
4. final int intervalH = 10;
5. final int intervalV = 10;
6. final int nbBrickH = 14;
7. final int nbBrickV = 7;
8.  
9. class Brick
10. {
11.   // Constants of the brick
12.   final int sizeX = 30;
13.   final int sizeY = 20;
14.  
15.   int posX;
16.   int posY;
17.   color c;
18.  
19.   public Brick(int x, int y, color bc)
20.   {
21.     posX = x;
22.     posY = y;
23.     c = bc; // brick color...
24.   }
25.   
26.   public void draw()
27.   {
28.     pushStyle(); // Avoid to alter settings of other classes (if any)
29.     rectMode(CORNER);
30.     noStroke();
31.     fill(c);
32.     rect(marginX + (intervalH + sizeX) * (posX - 1),
33.         marginY + (intervalV + sizeY) * (posY - 1),
34.         sizeX, sizeY);
35.     popStyle();
36.   }
37. }
38.  
39. ArrayList<Brick> bricks = new ArrayList<Brick>();
40.  
41. void setup()
42. {
43.   size(600, 800);
44.   for (int i = 0; i < nbBrickH; i++)
45.   {
46.     for (int j = 0; j < nbBrickV; j++)
47.     {
48.       bricks.add(new Brick(i+1, j+1, color(55, 40 + 30 * j, 255 - 30 * j)));
49.     }
50.   }
51. }
52.  
53. void draw()
54. {
55.   background(255);
56.   for (Brick brick : bricks)
57.   {
58.     brick.draw();
59.   }
60. }

1. for (int i = 0, n = bricks.size(); i < n; i++)
2. {
3.   Brick brick = bricks.get(i);
4.   brick.draw();
5. }

1. String[] strs = { "one", "two", "three" };
2. for( String s : strs ) {   // for each string s in array strs do: println( s )
   
3.     println( s );
4. }
5. 
   
6. int[] ints = { 1, 2, 3, 4, 5 };
7. for( int i : ints ) {  // for each integer i in array ints do: println( i )
   
8.     println( i );
9. }

 If I want to remove a special brick what code should I write? And where I should add this code?

I know I should use (e.g .remove(i); )

Can anyone please guide me how can for instance by using mouseX & mouseY, remove specified brick in above code. If you want give another example other than mouseX for removing brick.

1. // Constants of the brick wall
2. final int marginX = 20;
3. final int marginY = 20;
4. final int intervalH = 10;
5. final int intervalV = 10;
6. final int nbBrickH = 14;
7. final int nbBrickV = 7;
8.  
9. class Brick
10. {
11.   // Constants of the brick
12.   final int sizeX = 30;
13.   final int sizeY = 20;
14.  
15.   int posX;
16.   int posY;
17.   color c;
18.  
19.   public Brick(int x, int y, color bc)
20.   {
21.     posX = x;
22.     posY = y;
23.     c = bc; // brick color...
24.   }
25.  
26.   public void draw()
27.   {
28.     pushStyle(); // Avoid to alter settings of other classes (if any)
29.     rectMode(CORNER);
30.     noStroke();
31.     fill(c);
32.     rect(getX(), getY(), sizeX, sizeY);
33.     popStyle();
34.   }
35.  
36.   public int getX()
37.   {
38.     return marginX + (intervalH + sizeX) * (posX - 1);
39.   }
40.   public int getY()
41.   {
42.     return marginY + (intervalV + sizeY) * (posY - 1);
43.   }
44.  
45.   public boolean isOver()
46.   {
47.     int x = getX();
48.     int y = getY();
49.     return mouseX >= x && mouseX < x + sizeX && mouseY >= y && mouseY < y + sizeY;
50.   }
51. }
52.  
53. ArrayList<Brick> bricks = new ArrayList<Brick>();
54.  
55. void setup()
56. {
57.   size(600, 800);
58.   for (int i = 0; i < nbBrickH; i++)
59.   {
60.     for (int j = 0; j < nbBrickV; j++)
61.     {
62.       bricks.add(new Brick(i+1, j+1, color(55, 40 + 30 * j, 255 - 30 * j)));
63.     }
64.   }
65. }
66.  
67. void draw()
68. {
69.   background(255);
70.   for (Brick brick : bricks)
71.   {
72.     brick.draw();
73.   }
74. }
75.  
76. void mouseReleased()
77. {
78.   for (Brick brick : bricks)
79.   {
80.     if (brick.isOver())
81.     {
82.       bricks.remove(brick);
83.       break; // Can be over only one brick
84.     }
85.   }
86. }

I want to add sound when remove any of the bricks. Where can I add sound?