Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Learning Dart
  • Table Of Contents Toc
  • Feedback & Rating feedback
Learning Dart

Learning Dart

4.4 (10)
close
close
Learning Dart

Learning Dart

4.4 (10)

Overview of this book

Mastering Dart by Projects is a step-by-step guide that aims to give you hands-on knowledge about programming in Dart using an example-based approach.If you want to become a web developer, or perhaps you already are a web developer but you want to add Dart to your tool belt, then this book is for you. This book assumes that you have at least some knowledge of HTML and how web applications work. Some previous programming experience, preferably in a modern language like C#, Java, Python, Ruby, or JavaScript, will also give you a head start. You can also work with Dart on your preferred platform, be it Linux, Mac OS X, or Windows.
Table of Contents (14 chapters)
close
close
13
Index

Spiral 5 – game logic (bringing in the time element)


Our app isn't playable yet:

  • When a cell is clicked, its color must only show for a short period of time (say one second)

  • When a cell and its twin cell are clicked within a certain time interval, they must remain visible

Note

For code file for this section, refer to chapter 7\educ_memory_game\spirals\s05 in the code bundle.

All of this is coded in the mouseDown event handler, and we also need a variable lastCellClicked of type Cell in the Board class. Of course, this is exactly the cell which we get in the mouseDown event handler. So, we set this in line (5) in the following code snippet:

void onMouseDown(MouseEvent e) {
  // same code as in Spiral 4 - 
 if (cell.twin == lastCellClicked && lastCellClicked.shown) { (1)
   lastCellClicked.hidden = false;                            (2)
     if (memory.recalled)   memory.hide();                    (3)
   } else {
     new Timer(const Duration(milliseconds: 1000), () =>     cell.hidden...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY