package com.droidquest.devices;

import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import javax.swing.ImageIcon;

import com.droidquest.Room;
import com.droidquest.chipstuff.Port;
import com.droidquest.items.GenericRobot;
import com.droidquest.items.Item;

public class Grabber extends Device 
{
Color color;
transient GenericRobot robot;

public Grabber(int X, int Y, Room r, Color col) 
  {
	x=X; y=Y; color= col;
	width=40; height=48;
	grabbable = false;
	room = r;
	if (room.portalItem!=null)
	  if (room.portalItem.getClass().toString().endsWith("Robot"))
	    robot = (GenericRobot) room.portalItem;
	GenerateIcons();
	currentIcon = icons[0].getImage();
  }

public void writeRef(ObjectOutputStream s) throws IOException 
  {
	super.writeRef(s);	
	s.writeInt(level.items.indexOf(robot)); // Index of fromport device
  }

public void readRef(ObjectInputStream s) throws IOException 
  {
	super.readRef(s);
	robot = (GenericRobot) level.FindItem(s.readInt());
  }

public void GenerateIcons() 
  {
	robot = (GenericRobot) room.portalItem;
	if (ports==null)
	  {
	     ports = new Port[2];
	     ports[0] = new Port(35,41,Port.TYPE_INPUT,16,Port.ROT_DOWN,this);
	     ports[1] = new Port(11,47,Port.TYPE_OUTPUT,26,Port.ROT_DOWN,this);
	  }
	else
	  for (int a=0; a<ports.length; a++)
	    ports[a].myDevice = this;
	icons = new ImageIcon[1];
	icons[0]= new ImageIcon(new BufferedImage(width,height,BufferedImage.TYPE_4BYTE_ABGR));	
	currentIcon = icons[0].getImage();
  }

public void Decorate() 
  {
	super.Decorate();
	try
	  {
	     g = currentIcon.getGraphics();
	  }
	catch (NullPointerException e)
	  {
	     System.out.println("Could not get Graphics pointer to " + getClass() + " Image");
	     return;
	  }
	g.setColor(color);
	g.fillRect(24,4,4,10);
	g.fillRect(16,4,12,2);
	g.fillRect(16,8,12,2);
	g.fillRect(16,2,4,10);
	g.fillRect(12,0,4,4);
	g.fillRect(12,10,4,4);
	g.fillRect(4,0,12,2);
	g.fillRect(4,12,12,2);
	g.fillRect(4,0,4,4);
	g.fillRect(4,10,4,4);
	g.fillRect(0,2,4,4);
	g.fillRect(0,8,4,4);
  }

public boolean Function() 
  {
	if (robot.carrying != null)
	  ports[1].value=true;
	else
	  ports[1].value=false;
	
	if (ports[0].value == false)
	  { // Input Low
	     if (robot.carrying != null)
	       robot.Drops();
	  }
	else
	  { // Input High
	     if (robot.carrying == null)
	       {
		  // Try and pick up something
		  Item item = robot.level.FindNearestItem(robot);
		  if (item != null)
		    {
		       if (item.CanBePickedUp(robot) && item.carriedBy==null)
			 {
			    int CX = item.x+item.getWidth()/2;
			    int CY = item.y+item.getHeight()/2;
			    if (CX>=28+robot.x && CY<21+robot.y) 
			      {
				 // Move item to robot.x,robot.y
				 item.x = robot.x+60-item.getWidth()/2;
				 item.y = robot.y-9-item.getHeight()/2;
				 robot.grabber = Port.ROT_UP;
				 robot.PicksUp(item);
			      }

			    if (CX>=28+robot.x && CY>=21+robot.y) 
			      {
				 // Move item to robot.x,robot.y
				 item.x = robot.x+66-item.getWidth()/2;
				 item.y = robot.y+41-item.getHeight()/2;
				 robot.grabber = Port.ROT_RIGHT;
				 robot.PicksUp(item);
			      }
			    
			    if (CX<28+robot.x && CY>=21+robot.y) 
			      {
				 // Move item to robot.x,robot.y
				 item.x = robot.x+5-item.getWidth()/2;
				 item.y = robot.y+52-item.getHeight()/2;
				 robot.grabber = Port.ROT_DOWN;
				 robot.PicksUp(item);
			      }

			    if (CX<28+robot.x && CY<21+robot.y) 
			      {
				 // Move item to robot.x,robot.y
				 item.x = robot.x-5-item.getWidth()/2;
				 item.y = robot.y+3-item.getHeight()/2;
				 robot.grabber = Port.ROT_LEFT;
				 robot.PicksUp(item);
			      }
			 
			 }
		    }
	       }
	  }
	  
	return false;
  }

public void Erase() 
  {
	super.Erase();
	robot = null;
  }

}