911 was kek

// Load in Library functions
import flash.events.KeyboardEvent;
import flash.events.Event;
import flash.media.Sound;
import flash.events.MouseEvent;

// Event listeners wait to be triggered before running functions
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);
stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler);
stage.addEventListener(Event.ENTER_FRAME, fEnterFrame);

// Global variables that can be used by all of the functions within the script
// Keeps track of whether or not an arrow key is being pressed
var up:Boolean = false;
var down:Boolean = false;
var left:Boolean = false;
var right:Boolean = false;
var spaceBar:Boolean = false;

var speed:int = 8; //The speed at which the ship will move each time a key is pressed
var haySpeed:int = 10; //how fast the hays move
var hays:Array = []; //Keeps track of hays on screen

var enemies:Array = []; //Keep track of all enemies on screen
// Checks which key was pressed by the users and sets the coresponding variable
var score:int = 0;
var lives:int = 3;

ScoreBoardDisplay.txtscore.text = String(score);
ScoreBoardDisplay.txtlives.text = String(lives);

//Make the end game symbol invisible
EndGame.visible = false;

//Intialise choices of chracter for the player
var myFarmerboy:Farmerboy = new Farmerboy();
var myCharacter = new Farmer();
var characterSelected:Boolean = false;

function keyDownHandler (event:KeyboardEvent):void
{
	switch(event.keyCode) //Check whcih key it was
	{
		case Keyboard.UP:
		   up = true; //Set global variable for this key
		   break; // Move on to check if any other keys
		case Keyboard.DOWN:
		   down = true;
		   break;
		case Keyboard.LEFT:
		   left = true;
		   break;
		case Keyboard.RIGHT:
		   right = true;
		break;
	    case Keyboard.SPACE:
		   spaceBar = true;
		 break;

		 case 49: //if 1 key was pressed
		 {
		 //hide intructions symbol
		 myInstructions.visible = false;
		 this.myFarmer.addChild(myCharacter);
		 characterSelected = true; //Ship selected
		 break;
		 }
		 case 50: //if 2 key was pressed
		 {
			 //hide instructions symbol
			 myInstructions.visible = false;
			 this.myFarmer.addChild(myFarmerboy);
			 characterSelected = true; //chracter selected
			 break;
		 }
	}
}

function keyUpHandler (event:KeyboardEvent):void
{
	switch(event.keyCode) // Check which key it was
	{
		case Keyboard.UP:
		    up = false; //Set a global variable for this key
			break; //move on to the check if any other keys have also been released
	    case Keyboard.DOWN:
		    down = false;
			break;
	    case Keyboard.LEFT:
		    left = false;
			break;
	    case Keyboard.RIGHT:
		    right = false;
			break;
	    case Keyboard.SPACE:
		    spaceBar = false;
			break;
	}
}

// Checks Global variables to see which keys are being pressed and moves the ship accordingly
function fEnterFrame(event:Event):void
{
	//if left is pressed but not right and the ship is on stage
	if(left && !right && myFarmer.x >0) {
		myFarmer.x -= speed;
	}

   //If right is pressed and left is not and the ship is on stage
   {
	 if(right && !left && myFarmer.x < stage.stageWidth) {
		 myFarmer.x += speed;
       }
   }

  //if up is pressed and down is not and the ship is on the stag
   {
	   if(up && !down && myFarmer.y >0) {
		   myFarmer.y -=speed;
	   }
   }

  //if down is pressed and up is not and ship is on stage
  if(down && !up && myFarmer.y < stage.stageHeight) {
	  myFarmer.y += speed;
   }


//Fire hay
if(spaceBar) {
	addhay(myFarmer.x, myFarmer.y); //makes hay appear at the front
}

hayAction(); //Calls a function that controls the hay

enemyAction(); //Calls a function that controls the enemies

enemyKilled(); //calls a function that deals with the player shooting the enemy
}

function addhay (startX, startY):void
{
	//Only add a hay if the maximum number are not already on stage
	if(hays.length <5)
	{
		//Declare a new instance from the hay class
		var b:hay = new hay();

		//set the starting position of the hay to match the front of th ship
		b.x = startX;
		b.y = startY;

		stage.addChild(b); //Add the new hay to the stage

		hays.push(b); //store the hay in the hay array
	}
}

function hayAction():void
{
	//loop through all the instances of the hay
	// loop from 0 to the number of hays - 1
	for (var i:int = 0; i<= hays.length - 1; i++)
	{
		hays[i].x += haySpeed; //move the hay

		// if the hay flies off the screen, remove it
		if(hays[i].x > stage.stageWidth)
		{
			stage.removeChild(hays[i]); //remove from stage

			hays.splice(i, 1); //remove from the array
		}
	}
}

function enemyAction():void
{
	//Limit the number of enemies on screen at once
	if(enemies.length < 4 && characterSelected == true)
	{
		//Declare an instance of enemy from the enemy class
		var e:Enemy = new Enemy();

		// Set the left edge of the enemy to the far right edge of the stage
		var startX: int = stage.stageWidth;

		// randomly choose the vertical starting point of enemy
		var startY:int = Math.random() * stage.stageHeight;

		//Assign the starting coordinate to the new hay
		e.x = startX;
		e.y = startY;

		//Display the new hay on stage
		stage.addChild(e);

		//Store the new hay in the array
		enemies.push(e);
	}

	//loop through each existing enemy
	//decade where it should be and what should happen to it
	for (var i:int = 0; i <= enemies.length - 1; i++)
	{
		//if the enemy is above the player's ship then move the enemy down
		if(enemies[i].y > myFarmer.y) {
			enemies[i].y -=2
			//otherwise move the enemy up towards the player ship
		   }else if(enemies[i].y < myFarmer.y){
			   enemies[i].y += 2
		   }

		   //if the enemy is already level with the players ship just move it sideways
		   enemies[i].x -= 10;

		   //if the enemy flies off the screen, remove it
		   if(enemies[i].x < 0)
		   {
			   //Remove the enemy from the stage
			   stage.removeChild(enemies[i]);

			   //remove the enemy from the array
			   enemies.splice (i, 1);
		}

		//if an enemy hits the players ship
		if(enemies[i].hitTestObject(myFarmer)){
			//remove the enemy from the stage
			stage.removeChild(enemies[i]);

			//remove the enemy from the array of existing enemies
			enemies.splice(i, 1);

			lives -=1; //Take one life from then player
			ScoreBoardDisplay.txtlives.text = String(lives);
			//if the players lives have all been used
			if(lives == 0){
				//Remove event listeners so that the movement keys no longer respond
				stage.removeEventListener(KeyboardEvent.KEY_DOWN,keyDownHandler);
				stage.removeEventListener(KeyboardEvent.KEY_UP,keyUpHandler);

				stage.removeEventListener(Event.ENTER_FRAME,fEnterFrame);

				//remove hays from screen as they would appear in front of the end game symbol
				for(var j:int = 0; j<= hays.length - 1; j++){
					stage.removeChild(hays[j]);
				}

				//remove enemies from the screen as they would appear in front of the end game symbol
				for(var k:int = 0; k<= enemies.length - 1; k++){
					stage.removeChild(enemies[k]);
				}

				//store the final score
				EndGame.txtFinalScore.text = String(score);

				//Display finalscore end game screen
				EndGame.visible = true;
			}
		}
	}
}

function enemyKilled():void
{
	//Loop through all of the hays on screen to see what should happen to them
	for (var i:int = 0; i <= hays.length - 1; i++)
	{
	//Check through all of the enemies to see if this particular hay has hit one
	for (var j:int = 0; j <= enemies.length - 1;j++)
	    {
		// if a hay has hit an enemy
		if (hays[i].hitTestObject(enemies[j])){
			//remove the hay and the enemy from the stage
			stage.removeChild(enemies[j]);
			stage.removeChild(hays[i]);

			// remove the hay and enemy from their arrays
			enemies.splice(j,1);
			hays.splice(i,1);
			score += 1;
			ScoreBoardDisplay.txtscore.text = String(score);
		}
	 }
  }
}