Mr Sun Studios - All about Design, Programming and Game Development.

package{
	//importing required classes for this to work
	import flash.display.MovieClip;
	import flash.events.*;
	public class EmptyBlock extends MovieClip{//defining the class as EmptyBlock
		private var _root:MovieClip;//creating a _root variable to access root easily
 
		public function EmptyBlock(){//this function will always run once EmptyBlock is called
			this.addEventListener(Event.ADDED, beginClass);//create a function that will run once
			this.addEventListener(Event.ENTER_FRAME, eFrameEvents);//create a enterFrame function
		}
		private function beginClass(e:Event):void{
			_root = MovieClip(root);//setting the _root as the root level
 
			this.buttonMode = true;//make this act like a button
			this.addEventListener(MouseEvent.MOUSE_OVER, thisMouseOver);//adding function for mouseOver
			this.addEventListener(MouseEvent.MOUSE_OUT, thisMouseOut);//adding function for mouseOut
			this.addEventListener(MouseEvent.CLICK, thisClick);//adding function for clicking
		}
		private function eFrameEvents(e:Event):void{
			if(_root.gameOver){//remove this and listeners if game is over
				this.removeEventListener(Event.ENTER_FRAME, eFrameEvents);
				this.removeEventListener(MouseEvent.MOUSE_OVER, thisMouseOver);
				this.removeEventListener(MouseEvent.MOUSE_OUT, thisMouseOut);
				this.removeEventListener(MouseEvent.CLICK, thisClick);
				MovieClip(this.parent).removeChild(this);
			}
		}
		private function thisMouseOver(e:MouseEvent):void{
			//changing the background so the user know's it's clickable
			this.graphics.drawRect(0,0,25,25);
			this.graphics.endFill();
		}
		private function thisMouseOut(e:MouseEvent):void{
			//changing the background back
			this.graphics.beginFill(0x333333);
			this.graphics.drawRect(0,0,25,25);
			this.graphics.endFill();
		}
		private function thisClick(e:MouseEvent):void{
			//we'll add code that'll make a turret be made later
		}
	}
}

package{
	//imports
	import flash.display.*;
	import flash.events.*;
	import flash.geom.*;
	public class DirectBlock extends MovieClip{//we'll call it a DirectBlock
		private var _root:MovieClip;//again, defining a _root
		private var directType:String;//what kind of special block is this
 
		//this time, we have to accept some values to make it easier to place, like the type and coordinates
		public function DirectBlock(type:String,xVal:int,yVal:int){
			directType = type;//set the directType so that all other functions can use it
			//add the required event listeners
			this.addEventListener(Event.ADDED, beginClass);
			this.addEventListener(Event.ENTER_FRAME, eFrame);
 
			//setting the coordinates
			this.x = xVal;
			this.y = yVal;
		}
		private function beginClass(e:Event):void{
			_root = MovieClip(root);//setting the _root again
 
			//making this into a 25x25 square
			this.graphics.beginFill(0x111111);
			this.graphics.drawRect(0,0,25,25);
			this.graphics.endFill();
		}
		private function eFrame(e:Event):void{
			if(_root.gameOver == true){//destroy this if the game's over
				this.removeEventListener(Event.ENTER_FRAME, eFrame);
				MovieClip(this.parent).removeChild(this);
			}
			//we'll add more code to this later
		}
	}
}

stop();
 
//setting vars to step in for turns and special blocks
var S:String = 'START';
var F:String = 'FINISH';
var U:String = 'UP';
var R:String = 'RIGHT';
var D:String = 'DOWN';
var L:String = 'LEFT';
 
var startDir:String;//the direction the enemies go when they enter
var finDir:String;//the direction the enemies go when they exit
var startCoord:int;//the coordinates of the beginning of the road
var lvlArray:Array = new Array();//this array will hold the formatting of the roads
 
lvlArray = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
			0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
			0,0,0,0,R,1,1,D,0,0,R,1,1,D,0,0,R,1,1,D,0,0,
			0,0,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,
			0,0,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,
			S,D,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,R,1,F,
			0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0,0,0,
			0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0,0,0,
			0,R,1,1,U,0,0,R,1,1,U,0,0,R,1,1,U,0,0,0,0,0,
			0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
			0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
			0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
			];
 
//the names of these variables explain what they do
var currentLvl:int = 1;
var gameOver:Boolean = false;
 
function startGame():void{//we'll run this function every time a new level begins
	//right now we don't have any code
}
 
var roadHolder:Sprite = new Sprite();//create an object that will hold all parts of the road
addChild(roadHolder);//add it to the stage
function makeRoad():void{
	var row:int = 0;//the current row we're working on
	var block;//this will act as the block that we're placing down
	for(var i:int=0;i<lvlArray.length;i++){//creating a loop that'll go through the level array
		if(lvlArray[i] == 0){//if the current index is set to 0
			block = new EmptyBlock();//create a gray empty block
			block.graphics.beginFill(0x333333);
			block.graphics.drawRect(0,0,25,25);
			block.graphics.endFill();
			addChild(block);
			//and set the coordinates to be relative to the place in the array
			block.x= (i-row*22)*25;
			block.y = row*25;
		} else if(lvlArray[i] == 1){//if there is supposed to be a row
			//just add a box that will be a darker color and won't have any actions
			block = new Shape();
			block.graphics.beginFill(0x111111);
			block.graphics.drawRect(0,0,25,25);
			block.graphics.endFill();		
			block.x= (i-row*22)*25;
			block.y = row*25;	
			roadHolder.addChild(block);//add it to the roadHolder
		} else if(lvlArray[i] is String){//if it's a string, meaning a special block
			//then create a special block
			block = new DirectBlock(lvlArray[i],(i-row*22)*25,row*25);
			addChild(block);
		}
		for(var c:int = 1;c<=16;c++){
			if(i == c*22-1){
				//if 22 columns have gone by, then we move onto the next row
				row++;
			}
		}
	}
}
//run these functions at the start
makeRoad();
startGame();