Sarah Guthals 
Write Code Like a Pro [PDF ebook] 
Create Working Applications

Introduction xi
About This Book xi
Foolish Assumptions xii
Icons Used in This Book xii
Where to Go from Here xii
Chapter 1: Getting Started with Java and Processing 1
Getting Started with Processing 2
Save and Reopen Processing Programs 9
Chapter 2: Writing Your First Program 13
Getting to Know the Canvas 14
Calling Methods in Java 21
Creating Variables 23
Chapter 3: Drawing with Code 25
Drawing a Triangle 26
Drawing a Rectangle 30
Drawing a Quadrilateral 32
Drawing an Ellipse 34
Drawing an Arc 36
Creating a Unique Drawing 38
Chapter 4: Adding Color to the Canvas 39
Adding Color to Your Canvas 40
Learning about RGB Values 43
Adding Color to Shapes 45
Chapter 5: Coding Your First Animation 51
Learning about Methods 52
Writing Your First Two Methods 54
Writing Your First Two Original Methods 57
Adding Parameters to Your Method 63
Chapter 6: Allowing User Interaction 67
Moving with the Mouse 68
Interacting with Mouse Clicks 72
Making a Horizontal Slider 74
Working with Conditional Statements 75
Moving Shapes with the Keyboard 79
Chapter 7: Coding Your First Game 85
Creating a Scene 86
Adding a Character to Your Game 90
Adding Movement to Your Videogame 96
Updating the Background 99
Adding Gravity to Your Videogame 101
Making Lava Pits 104
Chapter 8: Making Artificial Intelligence 111
Adding an Enemy to Your Videogame 112
Making the Enemy Move 114
Creating Your Own Java Class 116
Creating a Second Java Class 123
Adding Health to Your Character 128
Giving Your Enemies Collision Detection 131
Chapter 9: Planning Your Ninja Bird Game 135
Making Sense of the Flappy Bird Code 138
Outlining Your Ninja Bird 140
Designing Your Java Classes 141
Chapter 10: Planning Your Ninja Bird Methods 147
Designing Your Setup Method 148
Designing Your Draw Method 151
Designing Your Collision Methods 156
Adding Helper Methods 159
Chapter 11: Coding the Ninja Bird Basics 165
Converting Comments to Code 166
Chapter 12: Coding the Final Ninja Bird Code 191
Adding Randomness to Your Pipes 192
Detecting Collision 194
Keeping Score in Your Game 201
Cleaning Up the Code 208

Sarah Guthals, Ph.D., has dedicated her life to coding education. She builds technology for kids to learn, create, and share safely online. She loves to help teachers demonstrate coding in the classroom, and she wishes she could teach her cats how to code!