Flash Tutorial: Arrow Key Movement

1. Create a circle on the stage.

2. Select it and Convert it to a Movie Clip.

3. Open up it’s Actions and type in the following:

onClipEvent(load){ //Load this data
speed=5
}
onClipEvent(enterFrame){
if(Key.isDown(Key.LEFT)){//If the Left key is down
this._x-=speed //This object move whatever speed equals to the left
}
if(Key.isDown(Key.RIGHT)){ //This object move whatever speed equals to the right
this._x+=speed
}
if(Key.isDown(Key.UP)){ //This object move whatever speed equals up
this._y-=speed
}
if(Key.isDown(Key.DOWN)){ //This object move whatever speed equals down
this._y+=speed
}
}

Explanation: onClipEvent(load){ speed=5

This basically means “On the frame that this code is on, load this data.”

Explanation: onClipEvent(enterFrame){

This means “On every frame this code is on, the following shall take place.”

Explanation: this._##=speed

This means “This will move either Horizontally (X) or Vertically (Y) at the same rate as speed.”

Well there you have it!