I'm new to ActionScript and I'm confused about these two errors. I already have some prior coding experience from other languages.

Scene 1, Layer 'Actions', Frame 1, Line 78, Column 20 1084: Syntax error: expecting rightparen before colon.

Scene 1, Layer 'Actions', Frame 1, Line 85, Column 20 1084: Syntax error: expecting rightparen before colon.

This is my code.

function moveCharacter(evt:KeyboardEvent):void
{
    if (evt.keyCode == Keyboard.RIGHT)
    {
        eggHead.scaleX = 1; //flip right
        eggHead.x  = 10;
        
        //cycle through frames
        if (eggHead.currentFrame == 9)
        {
             eggHead.gotoAndStop(2);
        }
        else
        {
            eggHead.gotoAndStop(eggHead.currentFrame 1);
        }
    }
        
    if (evt.keyCode == Keyboard.LEFT)
    {
        eggHead.scaleX = -1; //flip left
        eggHead.x -= 10;
        
        //cycle through frames
        if (eggHead.currentFrame == 9)
        {
            eggHead.gotoAndStop(2);
        }
        else
        {
            eggHead.gotoAndStop(eggHead.currentFrame 1);
        }
    }
}

function timing(evt:TimerEvent):void
{
    timeStep  = 1; //increment counter
    if (run)
    { //only if run = true is shift key has been pressed
        moveCharacter(evt:KeyboardEvent)
        {
            timeStep = 0; //reset the counter
        }
    }
    else if (timeStep == 2)
    {
        moveCharacter(evt:KeyboardEvent)
        {
            timeStep = 0; //reset the counter
        }
    }
}

Lines 78 and 85 are the moveCharacter(evt:KeyboardEvent) function.

I'm not sure where the problem is, I can't see one, unless I'm blind.

CodePudding user response：

The : character has a limited amount of uses in AS3 (most of them are various type declarations):

// Variable declaration.
var a:int;

// Variable declaration within a loop statement.
for (var i:int = 0; i < 10; i  )
{
    // ...
}

// Ternary operator.
a = (Math.random() > 0.5)? 1: 0;

// Function declaration (both arguments and return type).
function convert(j:int, k:Number):String
{
    return j   "_"   k;
}

// XML NameSpaces.
var x:XML = <soap:Envelope xmlns:soap="http://.../envelope/" />;

This is neither of them, hence the syntax error.

if (run)
{
    moveCharacter(evt:KeyboardEvent)
    {
        timeStep = 0; //reset the counter
    }
}

You should probably explain what kind of logic you wanted to code, because it is not clear what are you trying to do here.

CodePudding user response：

The function moveCharacter was being called but you were typing a parameter declaration where the argument goes.

moveCharacter(evt:KeyboardEvent)

Your code doesn't have a keyboard event to pass at this spot. moveCharacter should be refactored to accept either "left" or "right" as arguments so that it doesnt require a keyboard event.

It's inherently unclear which direction the character should be moved from the time function. I assume the moveCharacter function is incomplete and missing forward and backward movement.

function moveCharacter(direction:String):void
{
    direction = direction.toLowerCase();
    
    if (direction == "right")
    {
        eggHead.scaleX = 1; //flip right
        eggHead.x  = 10;
        
        //cycle through frames
        if (eggHead.currentFrame == 9)
        {
             eggHead.gotoAndStop(2);
        }
        else
        {
            eggHead.gotoAndStop(eggHead.currentFrame 1);
        }
    }
        
    if (direction == "left")
    {
        eggHead.scaleX = -1; //flip left
        eggHead.x -= 10;
        
        //cycle through frames
        if (eggHead.currentFrame == 9)
        {
            eggHead.gotoAndStop(2);
        }
        else
        {
            eggHead.gotoAndStop(eggHead.currentFrame 1);
        }
    }
    // TODO: Implement forward and backwards

}

function timing(evt:TimerEvent):void
{
    timeStep  = 1; //increment counter
    if (run)
    { //only if run = true is shift key has been pressed
        moveCharacter("forward");
        timeStep = 0; //reset the counter
    }
    else if (timeStep == 2)
    {
        moveCharacter("forward");
        timeStep = 0; //reset the counter
    }
}