Flash MX 2004 Games : Art to ActionScript

1 //Initialise firing
2 for (i=0; i0.8){
Let’s see how you are doing. What does the above condition statement mean? Can you remember
what ‘&&’ means? It means ‘And’; when used in a condition statement it can be read in English
as ‘if condition 1 And condition 2’ then do something. Here we have three conditions. The first
condition checks the calculated value for the new _y position, ‘curY’. If ‘curY’ is greater than
the current value of the Movie Clip’s _y value then the ‘Star’ must be moving down the screen
(_y values increase down the screen). Next we test to see if the ‘Star’ is already exploding, in which
case, the movie clip’s variable ‘exploding’ will evaluate to ‘true’. Finally the condition statement
uses a ‘random’ test, otherwise every ‘Star’ would explode at its peak height. By using a random
value we can make some ‘Stars’ explode at the peak height and others on the descent. So here is
the code for the frame action labelled ‘Flying’.
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