ブロック崩し

block.pde

final int numBlocksCols = 5, numBlocksRows = 10;
final int numBlocks = numBlocksCols * numBlocksRows;
final int blockWidth = 30, blockHeight = 10, space = 2;
final int padWidth = 40, padHeight = 10;
final color std_colors[] = {color(255, 0, 0) // red
  , color(255, 0, 255) // magenta
  , color(255, 255, 0) // yellow
  , color(0, 255, 255) // cyan
  , color(0, 255, 0) // green
};
final color padColor = color(200, 255, 200); // paleGreen
Block[][] blocks;
Pad pad;

int w = 40;
int h = 10;
int d = 20, y = 0, x, vx = 0, vy = 0, r = d / 2;

void setup() {
  size(322, 400);
  noStroke();
  blocks = new Block[numBlocksCols][numBlocksRows];
  for(int j = 0; j < numBlocksCols; j++){
    for(int i = 0; i < numBlocksRows; i++){
      int x = space * (i + 1) + blockWidth * i;
      int y = space * (j + 1) + blockHeight * j;
      blocks[j][i] = new Block(std_colors[j], x, y, blockWidth, blockHeight);
    }
  }
  pad = new Pad(padColor, width / 2, height - padHeight, padWidth, padHeight);
  
  ellipseMode(CORNER);
  x = width / 2 - r;
  ellipse(x, d / 2, d, d);
  frameRate(240);
}

void draw() {
  background(255);
  for(int i = 0; i < numBlocks; i++)
    blocks[int(i / numBlocksRows)][i % numBlocksRows].draw();

  pad.move(width);
  
  ellipse(x, y, d, d);
  x += vx;
  y += vy;

  if (x < 0 || x + d > width) {
    vx *= -1;
    if (x < 0) {
      x *= -1;
    } else if (x + d > width) {
      x = 2 * (width - d) - x;
    }
  }

  if (y < 0 || (y + d == height - h && (x + r <= mouseX + (w / 2) && x + r >= mouseX - (w / 2)))) {
    vy *= -1;
    if (y < 0) {
      y *= -1;
    } else if (y + d == height - h && (x + r <= mouseX + w / 2 && x + r >= mouseX - w / 2 )) {
      y = 2 * (height - h - d) - y;
    }
  }
}

void mouseClicked() {
  x = width / 2 - r;
  y = 0;
  fill(255, 0, 0);
  ellipse(x, y, d, d);
  vx = 1;
  vy = 1;
}

class Block {
  private color c; // block color
  protected int x, y, w, h; // position:(x, y), size:(w, h)

  Block() {}; // constructor
  Block(color c, int x, int y, int w, int h){ // constructor
    setColor(c);
    setPosition(x, y);
    setSize(w, h);
  }

  public void setColor(color c){ this.c = c; }
  public void setPosition(int x, int y){ this.x = x; this.y = y; }
  public void setSize(int w, int h){ this.w = w; this.h = h; }

  public void draw(){
    fill(c);
    rect(x, y, w, h);
  }
}
class Pad extends Block { // c, x, y, w and h are inheritted from Block Class
  Pad(){}; // constructor
  Pad(color c, int x, int y, int w, int h){ // constructor
    setColor(c);
    setPosition(x, y);
    setSize(w, h);
  }

  // setColor, setSize, setPosition and draw are also inheritted from Block Class
  boolean collideLeftWall(){ return x < 0; }
  boolean collideRightWall(int w){ return x + this.w > w; }

  public void move(int w){
    x = mouseX - this.w / 2;
    if(collideLeftWall()) x = 0;
    else if(collideRightWall(w)) x = w - this.w;
    draw();
  }
}