Basic Lesson 1: Publish
Basic Lesson 2: Movie Size
Basic Lesson 3: Action Menu
Basic Lesson 4: Timeline

Basic Lesson 5: Import Image

Lesson 1: Motion Tween

Lesson 2: Shape Tween
Lesson 3: Break Apart
Lesson 4: Motion Guide
Lesson 5: Alpha Fade
Lesson 6: Drag & Drop
Lesson 7: Animated Button
Lesson 8: Load Movie

Lesson 9: Link URL

Lesson 10: Cursor Change
Lesson 11: Add Favorites
Lesson 12: Add Sound
Lesson 13: Insert Scene
Lesson 14: Goto Frame

Lesson 1: Control Movieclips
Lesson 2: Flip Symbol
Lesson 3: Inside Movieclip
Lesson 4: Dynamic Text
Lesson 5: Random Clip
Lesson 6: Actionscript Music
Lesson 7: Symbol Timer
Lesson 8: Rotate Movieclip
Lesson 9: Disable Right-click
Lesson 10: Frame Names
Lesson 11: Side Scroller
Lesson 12: Increasing Velocity
Lesson 13: Visibility
Lesson 14: What's 'this'
Lesson 15: Collectable Items
Lesson 16: Specified Action
Lesson 17: Button Tap Code
Lesson 18: Random in Detail
Lesson 19: Health Bar
Lesson 20: Follow Movieclips

Common Arrays
Lesson 1: Hello World

Lesson 2: Functions
Lesson 3: Loops
Lesson 4: If Statements
Lesson 5: Arrays
Lesson 6: Control Movieclips
Lesson 7: Basic Properties
Lesson 8: Control Movieclips 2

Lesson 9: Adding A Timer

Lesson 10: Saving Data
Lesson 11: Data Objects

Lesson 1: Movement

Lesson 2: Wall Collision
Lesson 3: Shoot
Lesson 4: Shot Collision
Lesson 5: Score

Lesson 1: Character

Lesson 2: Eye Movement
Lesson 3: Arm Movement
Lesson 4: Walking
Lesson 5: Background
Lesson 6: Loop Background

Lesson 1: Orbital Dots 1

Lesson 2: Orbital Dots 2
Lesson 3: Spinning 1
Lesson 4: Spinning 2
Lesson 5: Easing Spaceship
Lesson 6: Sprite 3d
Lesson 7: Bouncy Ball
Lesson 8: Bouncy Ball 2
Lesson 9: Simple Collision

Lesson 10: Crazy Tiles


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home > learn flash > actionscript 3.0 lesson 4  

 Actionscript 3.0 Lesson Four: If Statements

1.)If statements are a way of telling the program what to do on certain conditions. You can tell the program to do something while it equals something, or is less than or greater than, while it is greater than or equal to something, while it is less than or equal to something, or not equal. Here is a few examples in this example code. You can test this by placing it inide a actionscript3.0 document's frame.

var myString:String = "text";
var myInt:int = 100;

{ trace("the variable is the same as the String");
if(myInt != 100){
trace("the variable is not equal to the int");
if(myInt <= 25){
trace("the variable is greater than or equal to 25");

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2.) The Breakdown. In this example the trace example will be executed, as well as the 2nd if statement, and the 3rd example will not be executed, because the variable myInt is not less than or equal to 25. You can also do shortcuts to typing your actionscript file. such as telling the program straight up if you want the variable to be exectuted if it is true. Such as this example I will provide. And you can also add statements when the program also has another option of being with an else statement.

var myBoolean:Boolean = true;
trace("my Boolean equals true");
} else if(!myBoolean){ trace("my Boolean equals false;");

3.) In an if statement if you want to say the variable may be false you place a explanation point before the called variable. In this example the first if statement was executed and the second if statement was not called because the called variable did equal true;



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