//  PACMAN "game" EXAMPLE
package
{
	import flash.display.*;  // includes MovieClip class
	import flash.events.*;   // includes KeyboardEvent class
	import flash.ui.*;       // includes Keyboard class
		
	public class Wk5Pacman extends MovieClip 
	{
		public function Wk5Pacman( )
		{
			// Trace some of the Keyboard class event contants just to try them out
			// and see what their ASCII code values are
			// These could be removed and not affect the movie at all
			
			trace( "Left arrow code: " + Keyboard.LEFT );
			trace( "Right arrow code: " + Keyboard.RIGHT );
			trace( "Up arrow code: " + Keyboard.UP );
			trace( "Down arrow code: " + Keyboard.DOWN );
			trace( "Escape code: " + Keyboard.ESCAPE );
			trace( "Delete code: " + Keyboard.DELETE );
			trace( "Backspace code: " + Keyboard.BACKSPACE );
			
			// Set the speed of Pacman
			pacman.speed = 30;
			
			// Add the listener for Keyboard events to the stage, not to the pacman object
			// This will listen for ANY key that is pressed
			stage.addEventListener( KeyboardEvent.KEY_DOWN, movePacman );
		}  // end constructor function
	
	
		// Handler function for the Arrow Keys to move pacman around the stage
		// Define only one handler function for all of the arrow keys
		// Use the event parameter, evt, to determine which key is pressed
		// If a key other than the arrow keys is pressed, this handler function \
		// will be executed, but no action will be taken, since there is no "else" clause
		function movePacman( evt: KeyboardEvent )
		{   if( evt.keyCode == Keyboard.LEFT )  // if key is left arrow, code 37
			{	pacman.x = pacman.x - pacman.speed;    //      move pacman to the left by the value of speed
				pacman.rotation = -180; 		//		and rotate pacman to face left
			}
			else if( evt.keyCode == Keyboard.UP )  // up arrow, code 38
			{	pacman.y = pacman.y - pacman.speed;
				pacman.rotation = -90; 
			}
			else if( evt.keyCode == Keyboard.RIGHT )  // right arrow, code 39
			{	pacman.x = pacman.x + pacman.speed;
				pacman.rotation = 0; 
			}
			else if( evt.keyCode == Keyboard.DOWN )  // down arrow, code 40
			{	pacman.y = pacman.y + pacman.speed;
				pacman.rotation = 90; 
			}
		}  // end movePacman function
	} // end class
} // end package