ICS3U1 Unit 2 Activity 2: Question 1

// Date: July 19, 2017
// Purpose: To calculate the velocity of an object

// This line makes the button, btnDisplay wait for a mouse click
// When the button is clicked, the displayVelocity function is called
btnDisplay.addEventListener(MouseEvent.CLICK, displayVelocity);

// These lines make the textinputs wait for a mouse click
// When any of these components are clicked, the clearLabels function is called
txtinDistance.addEventListener(MouseEvent.CLICK, clearLabels);
txtinTime.addEventListener(MouseEvent.CLICK, clearLabels);

// Declare Global Variables
var distance:Number;   // distance
var time:Number;       // time

// This is the displayVelocity function
// e:MouseEvent is the click event experienced by the button
// void indicates that the function does not return a value
function displayVelocity(e:MouseEvent):void
{
    // declare the variables
    var velocity:Number;      // velocity

    getData();
    velocity = distance / time;
    lblOutput.text = "The velocity is: " + velocity.toFixed(1) + " km/h.";
}

// This is the getData function
// It gets the distance and time from the user
function getData()
{
    // complete the code here
    distance = Number(txtinDistance.text)
    time = Number(txtinTime.text)
}

// This is the clearLabels function
// e:MouseEvent is the click event experienced by the textInput
// void indicates that the function does not return a value
function clearLabels(e:MouseEvent):void
{
     lblOutput.text = "";
}