Modify a text file: $/final_sample.pde

$/final_sample.pde

//// Sample code and class definitions for final exam.
//// File name:  final_sample.pde

int arrayname[]= new int[20];

color bg=  color(255,191,191);    // Background color.
String lastClick;
int avg;
int countA;

Ball newball=  new Ball();

Button a=new Button("A",100,20, 40, 40, 0, color(255,223,223) );
//++++ ADD MORE BUTTONS HERE.

void setup() {
  //// Initialize.
  size(640,480);
  //++++ ADD YOUR CODE HERE.
}

void draw() {
  //// Draw each frame:  buttons at top, values at bottom + bar chart.

background(bg);
  fill(0,0,255);
  text( "Your Name", 10, 480 );
  fill(0);
  text("Mean average:  ", 500,10);
  text(avg, 600,10);
  
  //// Display array,
  showArray(arrayname, arrayname.length);
  
  //// Buttons.
  showButtons();
  
  //// Show ball, if visible.
  if (newball.visible) {
    newball.move();
    newball.show();
    if (newball.isOver(mouseX,mouseY)) { newball.vanish(); }
  }
  
  // DEBUGGING:
  if (newball.visible) {
    text(newball.x, 600,170);
    text(newball.y, 600,180);
  }
}

void showButtons() {
  //// Show the buttons.
  a.show();
  //++++ ADD YOUR CODE HERE.
}

void mousePressed() {
  //// Check which button was clicked

/*
When a button is "clicked", perform the task described below:
 A: Change the background color, alternating between light-green and light-blue.
 B: Find the largest and smallest values in the array, and swap them.
 C: Replace each array element with random value (0-100) and recalculate the mean average.
 D: Change the array (and recalculate average):
        Double all values that are less than the mean average.
        Subtract 50 from all values that are greater than the mean average 
 E: Change the array (and recalculate average):
        Add ten to all odd values in the array;
        Divide all odd values by three. 
 F: Create a new ball (30 pixels diameter, randomly colored) at a random height on the left side.
	Ball moves diagonally (2 down, 3 right), "bouncing" off all edges of the window. 
	Ball vanishes if it hits (or comes within a 50-pixel radius of) mouse position.
*/

if (a.isOver(mouseX,mouseY)) {
      wasClicked(a);
      countA++;
  	//++++ ADD YOUR CODE HERE.
  }
  //++++ ADD YOUR CODE HERE.
}

void wasClicked( Button x ) {
  //// Record which button was clicked.
  lastClick=  x.name;
  x.count++;
}

void fillArray( int a[], int m ) {
  //// Fill the array with random values (0-100);
  //++++ ADD YOUR CODE HERE.
}
void showArray( int a[], int m) {
  //// Show the array
  //++++ ADD YOUR CODE HERE.
}

class Button {
  //// A button, displayed on screen, and able to detect when mouse is OVER.
  int x= 10;    // Position and size of this button.
  int y= 10;
  int w= 100;
  int h= 50;
  color c;           // Color of this button.
  int type=1;          // Button type (1=rectangle)
  String name;          // Text on this button.
    int count=0;
 
  //// CONSTRUCTOR(S) ////
  Button( String s, int xset, int yset) {
    //Button();
    //// Accept x & y coordinates;  use default for the others.
    x=  xset;
    y=  yset;
    c=color(255,127,127);
    name=s;
  }
  Button( String s, int xset, int yset, int wset, int hset, int tset, color cset) {
    //Button();
    //// Accept x & y coordinates;  use default for the others.
    x=  xset;
    y=  yset;
    w=  wset;
    h=  hset;
    c=  cset;
    type=  tset;
    name=s;
 
  }
  
  //// METHODS() ////
  void show() {
    //// Show the button.
    if (isOver(mouseX,mouseY)) {
  	//++++ ADD YOUR CODE HERE.
    }
    if (type<1) {
      ellipseMode(CORNER);
      ellipse(x,y,w,h);
    }else{
      rectMode(CORNER);
      rect(x,y,w,h);
    }
    // Name on button.
    fill(0);
    text( name, x+10, y+h/2 );
    // Count
    if (count>0) text(count, x+20, y+h/2+10 );
  }
  boolean isOver( int xx, int yy ) {
    ////  Return true if xx,yy is over this button!
    if (xx < x) return false;
    else if (xx > x+w) return false;
    else if (yy < y) return false;
    else if (yy > y+h) return false;
    return true;
 }
}

class Ball {
  //// A ball, displayed on screen if x>0.
  int x,y,r=10;    // Position and size of this ball.
  int dx=3;
  int dy=2;
  color c= color(255,0,0);;
  boolean visible=false;
  //// METHODS() ////
  void create() {
    //// Create a ball.
    visible=  true;
      //++++ ADD YOUR CODE HERE ++++
  }
  void vanish() {
    //// Make the ball vanish.
    visible=  false;
  }
  void show() {
    //// Show the ball, only if it is visible.
    if (visible) {
      //++++ ADD YOUR CODE HERE ++++
    }
  }
  void move() {
    //// Move the ball.  Bounce off walls.
    //++++ ADD YOUR CODE HERE ++++
  }
  boolean isOver( int xx, int yy ) {
    ////  Return true if xx,yy is over this button!
    //++++ ADD YOUR CODE HERE ++++
    return false;
 }
  
}