Type3.java

import java.awt.Color;
import java.util.Random;

/**
 * 
 * @author shayan
 *
 * objects of the form **
 *	    			    **
 *case 0	**
 *			 **
 *case 1	
 *		 *
 *		**
 *		*
 */


public class Type3 extends DrawObject {
	
/*	public Type3(int x ,int y){
		super(x,y);
		
	}
	public Type3(){
		this(Attribute.COL_NUM/2 , 0 );		
	}
*/
	public Type3(){
		this(new Random().nextInt(2));
	}
	public Type3(int direction){		
		this.direction=direction;
		DIRECTION_NUMBER=2;		
	}

	private Color TYPE3_COLOR = Color.YELLOW;
	@Override
	public void draw() {
		switch( direction){
		case 0:
			Data.color[x][y] = TYPE3_COLOR;
			Data.color[x+1][y] = TYPE3_COLOR;
			Data.color[x+1][y+1] = TYPE3_COLOR;
			Data.color[x+2][y+1] = TYPE3_COLOR;
			break;
		case 1:
			Data.color[x][y] = TYPE3_COLOR;
			Data.color[x][y+1] = TYPE3_COLOR;
			Data.color[x-1][y+1] = TYPE3_COLOR;			
			Data.color[x-1][y+2] = TYPE3_COLOR;			
			break;
		}
	}

	@Override
	public int getDirection() {
		return direction;
	}

	@Override
	public int getX() {
		return x;
	}

	@Override
	public int getY() {
		return y;
	}

	@Override
	public boolean move(int xChange, int yChange) {
		int tempX = x + xChange;
		int tempY = y + yChange;
		nullMe();
		boolean flag = false;
		switch(direction){
		case 0:
			if( tempX >= 0
					&& tempX+2 < Attribute.COL_NUM
					&& tempY >= 0 
					&& tempY+1 < Attribute.ROW_NUM)
				if( Data.color[tempX][tempY] == null 
						&& Data.color[tempX+1][tempY] == null
						&& Data.color[tempX+1][tempY+1] == null
						&& Data.color[tempX+2][tempY+1] == null){
					flag = true;
					this.setX(tempX);
					this.setY(tempY);
				}
			break;
		case 1:
			if( tempX-1 >= 0
					&& tempX < Attribute.COL_NUM
					&& tempY >= 0 
					&& tempY+2 < Attribute.ROW_NUM)
				if( Data.color[tempX][tempY] == null 
						&& Data.color[tempX][tempY+1] == null
						&& Data.color[tempX-1][tempY+1] == null
						&& Data.color[tempX-1][tempY+2] == null){
					flag = true;
					this.setX(tempX);
					this.setY(tempY);
				}
			break;
		}		
		draw();
		return flag;
	}

	@Override
	protected void nullMe() {
		switch(direction){
		case 0:
			Data.color[x][y] = null ;
			Data.color[x+1][y] = null;
			Data.color[x+1][y+1] = null;
			Data.color[x+2][y+1] = null;
			break;
		case 1:
			Data.color[x][y] = null ;
			Data.color[x][y+1] = null;
			Data.color[x-1][y+1] = null;
			Data.color[x-1][y+2] = null;
			break;
		}
	}

	@Override
	public boolean reachBottom() {
		switch(direction){
		case 0:
			if( this.getY()+1+1 >= Attribute.ROW_NUM 
					|| Data.color[x][y+1] != null 
					|| Data.color[x+1][y+2] != null 
					|| Data.color[x+2][y+2] != null )
				return true;
			break;
		case 1:
			if( this.getY()+2 + 1 >= Attribute.ROW_NUM 
					|| Data.color[x][y+2] != null 
					|| Data.color[x-1][y+3] !=null )
				return true;
			break;
		}
		return false;
	}

	@Override
	public void setDirection() {
		switch(direction){
		case 0:
			if( x-1 > 0 
				&& y+2 < Attribute.ROW_NUM
				&& Data.color[x][y+1] == null 
				&& Data.color[x-1][y+1] == null
				&& Data.color[x-1][y+2] == null)
				direction = 1;
			break;
		case 1:
			if( x+2 < Attribute.COL_NUM
					&& Data.color[x+1][y] == null 
					&& Data.color[x+1][y+1] == null
					&& Data.color[x+2][y+1] == null)
				direction = 0;
			break;
		}


	}

	@Override
	public void setX(int x) {
		switch( direction){
		case 0:
			if(x >= 0 && x+2 < Attribute.COL_NUM )
				this.x= x;
			break;
		case 1:
			if(x-1 >= 0 && x < Attribute.COL_NUM )
				this.x = x; 
			break;
		}
		

	}

	@Override
	public void setY(int y) {
		switch(direction){
		case 0:
			if( y >= 0 && y+1 < Attribute.ROW_NUM )
				this.y = y;
			break;
		case 1:
			if( y >=0  && y+2 < Attribute.ROW_NUM)
				this.y = y;
			break;
		}

	}

}