Learn this tutorial and see how to create random effect in flash using the Action Script code. Using this action script tutorial, you will also learn how to convert any object into a Movie Clip Symbol, how to create instance name, how to draw cube and more!
Example:
Step 1
Create a new flash document, press Ctrl+J key (Document Properties), and set Width to 330 and Height to 200px. Frame rate set to 16fps (Frames per Second).
Step 2
Take the Rectangle Tool (R), and draw a "cube" 25x25px. See the picture below.


Step 3
While your "cube" is still selected, press F8 key to convert it into a Movie Clip. See the picture below.

Step 4
Then, open the Properties Panel (Ctrl+F3), and under type cube.

Step 5
Select the "cube" again, open the Action Script Panel (F9), and paste this script:
onClipEvent(enterFrame){
r=Math.floor(Math.random()*255)
g=Math.floor(Math.random()*255)
b=Math.floor(Math.random()*255)
colourobj=new Color(this)
colourobj.setRGB(r<<16|g<<8|b)
}
Step 6
Cick on frame 1, open again the Action Script Panel (F9), and paste this sctipt:
for(i=1;i<=50;++i){
duplicateMovieClip("cube","movie"+i,i)
}
numobjects=1
for(i=1;i<=10;++i){
for(z=1;z<=5;++z){
this["movie"+numobjects]._x = i*30;
this["movie"+numobjects]._y = z*30;
numobjects+=1
}
}
cube._visible = false;
Test your Movie (Ctrl+Enter).
We're done!
Download source file (.fla)