//create an invisible movie clip across the entire stage using API
_root.createEmptyMovieClip("base", 1);
with (base) {
	lineStyle(2, 0x0000000, 0);
	beginFill(0x00000000, 0);
	lineTo(Stage.width, 0);
	lineTo(Stage.width, Stage.height);
	lineTo(0, Stage.height);
	lineTo(0, 0);
}
//whether to pan or not
level_pan = false;
//tile size
tile_size = 50;
// pan variables
pan_dist = 50;
pan_speed = 5;
// tiles array generation
tiles = [[0, 1, 0, 0], [1, 1, 2, 1], [1, 2, 1, 2], [0, 0, 1, 0]];
// bombs array generation
bombs = [[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 1]];
// main sprite
// xpos: bombuzal x position
// ypos: y position
// moving: bombuzal is moving or not
// facing: the side bombuzal is facing on
bombuzal_obj = {xpos:0, ypos:1, moving:false, facing:"right"};
//space down variable for checking if space is down for more
//than two seconds
space_down = false;
//time variable for checking how long space has been down
space_time = 0;
// bombuzal walk speed, in pixels/frame
walk_speed = 5;
// time passed since bombuzal last move
does_not_move = 0;
// creating the level movieclip
_root.createEmptyMovieClip("level", _root.getNextHighestDepth());
// placing tiles
for (x=0; x<tiles.length; x++) {
	for (y=0; y<tiles[x].length; y++) {
		// notice as it's not [x][y] but [y][x]
		if (tiles[y][x]) {
			placed = level.attachMovie("tile", "tile_"+(x*tiles.length+y), level.getNextHighestDepth(), {_x:x*tile_size, _y:y*tile_size});
			placed.gotoAndStop(tiles[y][x]);
		}
	}
}
// placing bombs
//MODIFIED 
//CHANGED:
/*for (x=0; x<bombs.length; x++) {
for (y=0; y<bombs[x].length; y++) {
if (bombs[y][x]) {
level.attachMovie("bomb", "bomb"+level.getNextHighestDepth(), level.getNextHighestDepth(), {_x:x*tile_size, _y:y*tile_size});
}
}
}*/
//TO:
for (x=0; x<bombs.length; x++) {
	for (y=0; y<bombs[x].length; y++) {
		if (bombs[y][x]) {
			level.attachMovie("bomb", "bomb"+x+"_"+y, level.getNextHighestDepth(), {_x:x*tile_size, _y:y*tile_size});
		}
	}
}
// placing bombuzal
level.attachMovie("bombuzal", "bombuzal", level.getNextHighestDepth(), {_x:bombuzal_obj.xpos*tile_size, _y:bombuzal_obj.ypos*tile_size});
level.bombuzal.onEnterFrame = function() {
	// if bombuzal is not alread moving...
	if (!bombuzal_obj.moving) {
		// incrementing counter
		does_not_move++;
		// if 150 frames has passed and bombuzal did not move..
		if (does_not_move == 150) {
			bombuzal_obj.moving = true;
			// choosing a random direction
			moving_direction = Math.floor(Math.random()*4)+1;
			switch (moving_direction) {
			case 1 :
				bombuzal_obj.facing = "left";
				break;
			case 2 :
				bombuzal_obj.facing = "right";
				break;
			case 3 :
				bombuzal_obj.facing = "up";
				break;
			case 4 :
				bombuzal_obj.facing = "down";
				break;
			}
		}
		// moving left       
		if (Key.isDown(Key.LEFT)) {
			bombuzal_obj.moving = true;
			bombuzal_obj.facing = "left";
		}
		// moving right                     
		if (Key.isDown(Key.RIGHT)) {
			bombuzal_obj.moving = true;
			bombuzal_obj.facing = "right";
		}
		// moving down                     
		if (Key.isDown(Key.DOWN)) {
			bombuzal_obj.moving = true;
			bombuzal_obj.facing = "down";
		}
		// moving up                     
		if (Key.isDown(Key.UP)) {
			bombuzal_obj.moving = true;
			bombuzal_obj.facing = "up";
		}
		// else, if it's moving...         
	} else {
		does_not_move = 0;
		switch (bombuzal_obj.facing) {
			// moving left
		case "left" :
			dx = -1;
			dy = 0;
			this._x -= walk_speed;
			break;
			// moving right
		case "right" :
			dx = 1;
			dy = 0;
			this._x += walk_speed;
			break;
			// moving up
		case "up" :
			dx = 0;
			dy = -1;
			this._y -= walk_speed;
			break;
			// moving down
		case "down" :
			dx = 0;
			dy = 1;
			this._y += walk_speed;
			break;
		}
		// if bombuzal walked for an entire tile...
		if ((this._x%tile_size == 0) and (this._y%tile_size == 0)) {
			// stop moving bombuzal
			bombuzal_obj.moving = false;
			// checking if bombuzal just walked a disappearing tile
			if (tiles[bombuzal_obj.ypos][bombuzal_obj.xpos] == 2) {
				// remove tile
				tiles[bombuzal_obj.ypos][bombuzal_obj.xpos] = 0;
				level["tile_"+(bombuzal_obj.xpos*tiles.length+bombuzal_obj.ypos)].removeMovieClip();
			}
			// increase bombuzal x and y position according to its direction  
			bombuzal_obj.xpos += dx;
			bombuzal_obj.ypos += dy;
			update_bombuzal_position();
		}
	}
	if (Key.isDown(Key.SPACE) && !bombuzal_obj.moving && !space_down) {
		//call handle bombs
		handle_bombs();
		//set spacedown to true
		space_down = true;
	}
	if (space_down && !Key.isDown(Key.SPACE)) {
		//set space down to false
		space_down = false;
		//set space time to 0
		space_time = 0;
	}
	//if space is down 
	if (space_down) {
		//increase it by one
		space_time++;
		//if its bigger than 60 (ie. 2 seconds)
		if (space_time>=60) {
			//then explode bombs
			explode_bombs();
		}
	}
};
// centering level
level._x = (Stage.width-tiles.length*tile_size)/2;
level._y = (Stage.height-tiles[0].length*tile_size)/2;
level.onEnterFrame = function() {
	//if mouse is on stage
	if (level_pan) {
		//stopping level leaving screen
		//too high
		if (level._y<=0) {
			level._y = 0;
		}
		//too low                                      
		if (level._y>=Stage.height-level._height) {
			level._y = Stage.height-level._height;
		}
		//too far to the left                                      
		if (level._x<=0) {
			level._x = 0;
		}
		//too far to the right                                      
		if (level._x>=Stage.width-level._width) {
			level._x = Stage.width-level._width;
		}
		// panning level                                      
		// pan right
		if (_root._xmouse<pan_dist) {
			level._x += pan_speed;
		}
		// pan left                                      
		if (_root._xmouse>Stage.width-pan_dist) {
			level._x -= pan_speed;
		}
		// pan down                                      
		if (_root._ymouse<pan_dist) {
			level._y += pan_speed;
		}
		// pan up                                      
		if (_root._ymouse>Stage.height-pan_dist) {
			level._y -= pan_speed;
		}
	}
};
//when mouse is on stage pan
base.onRollOver = function() {
	level_pan = true;
};
//when mouse leaves stage stop panning
base.onRollOut = function() {
	level_pan = false;
};
//function that handles bombs
function handle_bombs() {
	//if theres a bomb on the tile
	if (bombs[bombuzal_obj.ypos][bombuzal_obj.xpos] == 1) {
		//pickup bomb
		//remove the bomb
		_root.level["bomb"+bombuzal_obj.xpos+"_"+bombuzal_obj.ypos].removeMovieClip();
		//set the bomb array[y][x] to 0
		bombs[bombuzal_obj.ypos][bombuzal_obj.xpos] = 0;
	} else {
		//place bomb
		placed = _root.level.attachMovie("bomb", "bomb"+bombuzal_obj.xpos+"_"+bombuzal_obj.ypos, _root.level.getNextHighestDepth());
		placed._x = bombuzal_obj.xpos*tile_size;
		placed._y = bombuzal_obj.ypos*tile_size;
		//add to bomb array
		bombs[bombuzal_obj.ypos][bombuzal_obj.xpos] = 1;
	}
}
function explode_bombs() {
	//loop through bomb array
	for (x=0; x<bombs.length; x++) {
		for (y=0; y<bombs[x].length; y++) {
			if (bombs[y][x]) {
				//remove the bomb
				_root.level["bomb"+x+"_"+y].removeMovieClip();
				//set space_time to 0
				space_time = 0;
				/*
				Place here for what to do when a bomb explodes, ie.
				check if tile under is class - if then remove it.
				- Just and example....
				*/
			}
		}
	}
}
// update bombuzal position
function update_bombuzal_position() {
	// if bombuzal falls off the stage...
	if ((tiles[bombuzal_obj.ypos][bombuzal_obj.xpos] == undefined) or (tiles[bombuzal_obj.ypos][bombuzal_obj.xpos]<1)) {
		// reset bombuzal to its starting position
		bombuzal_obj.xpos = 0;
		bombuzal_obj.ypos = 1;
		level.bombuzal._x = bombuzal_obj.xpos*tile_size;
		level.bombuzal._y = bombuzal_obj.ypos*tile_size;
		update_bombuzal_position();
	}
}