true 735
Description
Statement; evaluates the expression and displays the result in the Output panel in test mode.
Use this action to record programming notes or to display messages in the Output panel while
testing a movie. Use the
expression parameter to check if a condition exists, or to display values
in the Output panel. The
trace() action is similar to the alert function in JavaScript.
You can use the Omit Trace Actions command in Publish Settings to remove
trace() actions
from the exported SWF file.
Example
This example is from a game in which a draggable movie clip instance named my_mc must be
released on a specific target. A conditional statement evaluates the
_droptarget property and
executes different actions depending on where
my_mc is released. The trace() action is used at
the end of the script to evaluate the location of the
my_mc movie clip and to display the result in
the Output panel. If
my_mc doesn’t behave as expected (for example, if it snaps to the wrong
target), the values sent to the Output panel by the
trace() action will help you determine the
problem in the script.
on(press) {
my_mc.startDrag();
}
on(release) {
if(eval(_droptarget) != target) {
my_mc._x = my_mc_xValue;
my_mc._y = my_mc_yValue;
} else {
var my_mc_xValue = my_mc._x;
var my_mc_yValue = my_mc._y;
target = "_root.pasture";
}
trace("my_mc_xValue = " + my_mc_xValue);
trace("my_mc_xValue = " + my_mc_xValue);
stopDrag();
}
true
Availability
Flash Player 5.
Usage
true
Description
Constant; a unique Boolean value that represents the opposite of false.
See also
false
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