First time here? First time here? Newsletter Signup Newsletter
Login | Register | 651326 Members and growing!
Search tutorials
Author: David Doull | Website:

Right, now lets get the spaceship moving!

The player will use the arrow keys to move the spaceship, up, down, left and right. So how do we do this?

We need to detect which key or keys are being pressed using Key.isDown and then adjust the spaceship x-position and y-postion accordingly.

Show me the code.

Lets have a look at how this is done. We are going to put almost all of the game code in clip events so if you don't know what clip events are then read on. (If you already know all about clip events then skip the next three paragraphs)

What are Clip Events?

Put simply, an event is 'something that happens', so a clip event is something that happens to a movie clip. More precisely it is an event that is associated with a movie clip. Two of the most useful movie clip events are 'load' and 'enterFrame' which occur when a movie clip is loaded and when it it enters a frame. The code looks like this


// code goes here


Any code contained between the curly brackets will be run when the movie clip is loaded or first appears on the stage. The load event is useful in games for initialising variables and defining functions, anything you want to do once at the start of a game - like setting the score to zero. The 'enterFrame' event occurs every time the movie clip enters a new frame. So code you want to happen over and over again (such as detecting a collision) should be included in an enterFrame event.

Where do you type this clip event code? Select the movieclip and either right click and choose actions, or pick actions from the Window menu, the actions window will open and this is where you type your clipEvent code. This is similar to where you put code for buttons in Flash 4.

Setting the speed.

Right click on the spaceship movie clip and choose actions. In the actions window type




This sets a variable called moveSpeed to 10 when the spaceship is first loaded. This variable will control the number of pixels the player moves. So to make the player appear to move faster you would change this to a higher number.

» Level Intermediate

Added: 2001-03-20
Rating: 7.99 Votes: 1021
(10 being the highest)
» Author
No details available.
» Download
Download the files used in this tutorial.
» Forums
More help? Search our boards for quick answers!


  • There are no comments yet. Be the first to comment!

  • You must have javascript enabled in order to post comments.

Leave a Comment
  • Your email address will not be published. All fields are required.
Featured Flash FLA
» Author: work2survive
» Title: Girl Walking 1kb
» Description: Walking girl, animation just takes 1kb, using high heels shoes, and fashion model attitude.
Featured Sound Loops
Image for equalize

Audio Player

» Author: BoxCat
» Title: CPU Talk
» Description: From the cyberpunk RPG, "Nameless: the Hackers" Completely Free to use! Keywords: edm hip hop rap electronic mysterious mission hacking chase exciting spy ios ambient chilling love happy sad angry suspense
Latest Font
» Author: Fábio FAFERS
» Description: I created this font for free use. Everyone can apply it in personal or business texts. Its free, but I want to be communicated in case of business use. Donations are accepted to keep the project of free fonts alive! Thank you all
Featured Sound Fx
Image for equalize

Audio Player

» Author: nathan
» Description:

A recorded sound of the Dimensional Fork Gate.