/*******************************************************************************/

final static int I_UP     = 0;
final static int I_DOWN   = 1;
final static int I_LEFT   = 2;
final static int I_RIGHT  = 3;
final static int I_FIRE   = 4;
final static int I_MAX    = 5;

class Input {

  boolean pressed[] = new boolean[I_MAX];
  int input[] = new int[I_MAX];
  
  float x = 0;
  float y = 0;
  
  Input() {
  }
  void update() {
    for (int i=0; i<I_MAX; i++)
      if (pressed[i])
        input[i]++;
      else
        input[i] = 0;
    x=y=0;
    if (pressed[I_UP]) y--;
    if (pressed[I_DOWN]) y++;
    if (pressed[I_LEFT]) x--;
    if (pressed[I_RIGHT]) x++;
  }
  void key(int i, boolean pressed) {
    switch (i) {
      case UP:
        this.pressed[I_UP] = pressed;
        break;
      case DOWN:
        this.pressed[I_DOWN] = pressed;
        break;
      case LEFT:
        this.pressed[I_LEFT] = pressed;
        break;
      case RIGHT:
        this.pressed[I_RIGHT] = pressed;
        break;
      case ' ':
        this.pressed[I_FIRE] = pressed;
        break;
    }
  }
}

/*******************************************************************************/