Error: The class does not exist

abigailvjacinto

I saw this code online at http://learningprocessing.com/examples/chp17/example-17-06-textbreakingup and I'm trying to test and understand it out on my own, however the sketch won't run because of the error "The class "Letter" does not exist". Also, is there a way to change the font color when the mouse is pressed?

// Example 17-6: Text breaking up 

PFont f;
String message = "click mouse to shake it up";

// An array of Letter objects
Letter[] letters;

void setup() {
  size(480, 270);

  // Load the font
  f = createFont("Arial", 20);
  textFont(f);

  // Create the array the same size as the String
  letters = new Letter[message.length()];

  // Initialize Letters at the correct x location
  int x = 125;
  for (int i = 0; i < message.length (); i ++ ) {
    // Letter objects are initialized with their location within the String as well as what character they should display.
    letters[i] = new Letter(x, 140, message.charAt(i)); 
    x += textWidth(message.charAt(i));
  }
}

void draw() {
  background(255);
  for (int i = 0; i < letters.length; i ++ ) {

    // Display all letters
    letters[i].display();

    // If the mouse is pressed the letters shake
    // If not, they return to their original location
    if (mousePressed) {
      letters[i].shake();
    } else {
      letters[i].home();
    }
  }
}

I tried adding 'class Letter', but it only creates another error on "ClassBody". I need help. :(

GoToLoop

http://LearningProcessing.com/code/LearningProcessing/chp17_strings/example_17_06_textbreakingup/Letter.pde

abigailvjacinto

@GoToLoop Nothing shows up when I run that code :( The error is "The type Letter is never used locally"

GoToLoop

Pay attention the sketch "example-17-06-textbreakingup" on the link you've posted got 2 ".pde" tabs:

1. "example_17_06_textbreakingup.pde"
2. "Letter.pde"

Chrisir

You need to join your code above and the class from the link gotoloop posted and then run the merged sketch

GoToLoop

From: https://Processing.org/tutorials/overview/

Processing sketches are made up of one or more tabs, with each tab representing a piece of code. The environment is designed around projects that are a few pages of code, and often three to five tabs in total. This covers a significant number of projects developed to test and prototype ideas, often before embedding them into a larger project or building a more robust application for broader deployment.

abigailvjacinto

@GoToLoop @Chrisir I see! I didn't realize that I missed that other tab hehe. Thank you so much for your help :) ^:)^

Chrisir

;-)