DroidQuest/src/com/droidquest/materials/Lock.java

package com.droidquest.materials;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.image.BufferedImage;

import javax.swing.ImageIcon;

import com.droidquest.Room;
import com.droidquest.items.Item;
import com.droidquest.items.Key;

public class Lock extends Material 
{
	// Generic Lock; Used to redefine materials in the local room. 

	int doorState=0;
	Color keyColor;
	transient Key latchKey = null;
	transient Room room;
	transient Room currentRoom;
	static public int NARROW = -1;
	static public int WIDE   = -2;
	static public int REMOVE = -3;
	static public int RESET  = -4;
	static public int LEFT   = -5;
	static public int RIGHT  = -6;
	static public int UP     = -7;
	static public int DOWN   = -8;
	int[][] program;

	// program[][] is an array of arrays. Each array holds the behavior of a
	// single value of doorState. 
	// 
	// A single array can hold one of the following:
//	    A single value of Lock.NARROW, Lock.WIDE, or Lock.REMOVE to define a pause
//	    A single value of RESET, LEFT, RIGHT, UP, or DOWN to change rooms
//	    A series of triplets (X,Y,M) with the XY position and the Materials
//	    Index.
	// 
	// Pause value can be one of the following:
	// Lock.NARROW = Pause until the key is placed once more precisely into the lock.
	// Lock.WIDE   = Pause until the key is placed ANYWHERE into the lock
	// Lock.REMOVE = Pause until the key is removed.
	// 
	// Pause values automatically reset the current Room to the original value.
	// 
	// Lock.RESET  = Set current room to the original room value
	// Lock.LEFT   = Change the current room to the room's left room
	// Lock.RIGHT  = Same, but right
	// Lock.UP     = Same, but up
	// Lock.DOWN   = Same, but down
	// 
	// The room is normally the key's rom when the key touches the lock, and
	// the triplets change the materials within the current room. With these
	// commands the current room can be changed so other rooms can be
	// manipulated.
	// 
	// Here's a sample program[][]
	// 
	// int[][] = {
//	            {Lock.NARROW},    // Wait for precise placement
//	            {10,5,0, 11,5,0}, // Converts two spots to holes
//	            {10,6,0, 11,6,0}, // Same, but lower
//	            {Lock.NARROW},     // Wait again
//	            {10,6,1, 11,6,1}, // Converts two spots to wall
//	            {10,5,1, 11,5,1}  // same, in reverse, go to pause.
	// };
	// 

	public Lock(Color lc, Color kc, int[][] prg) 
	  {
		super(true, false);
		color = lc;
		keyColor = kc;
		program = prg;
		GenerateIcons();
	  }

	public void GenerateIcons() 
	  {
		BufferedImage bi = new BufferedImage(28,32,BufferedImage.TYPE_4BYTE_ABGR);
		Graphics g;
		try
		  {
		     g = bi.getGraphics();
		  }
		catch (NullPointerException e)
		  {
		     System.out.println("Could not get Graphics pointer to " + getClass() + "Image");
		     return;
		  }
		
		g.setColor(color);
		g.fillRect(0,0,28,32);
		g.setColor(Color.black);
		g.fillRect(0,14,16,2);
		g.fillRect(0,16,12,2);
		g.fillRect(2,18,6,2);
		icon = new ImageIcon(bi);	
	  }

	public boolean equals(Material mat) 
	  {
		if (super.equals(mat))
		  if (keyColor == ((Lock)mat).keyColor
		      && program == ((Lock)mat).program)
		    return true;
		return false;
	  }

	public void Animate() 
	  {
		if (doorState == program.length)
		  doorState = 0;
		
		if (latchKey==null)
		  {
		     if (program[doorState][0]==Lock.REMOVE)
		       {
			  for (int a=0; a<level.items.size(); a++)
			    {
			       Item item = (Item) level.items.elementAt(a);
			       if (item instanceof Key)
				 {
				    Key testKey = (Key) item;
				    if (testKey.color.equals(keyColor))
				      {
					 latchKey=testKey;
					 room = latchKey.room;
					 currentRoom = room;
				      }
				 }
			    }
		       }
		  }
		
		if (latchKey==null)
		  return;
		
		
		if (program[doorState].length > 1)
		  {
		     for (int a=0; a<program[doorState].length/3; a++)
		       currentRoom.SetMaterial(program[doorState][a*3],
					       program[doorState][a*3+1],
					       program[doorState][a*3+2]);
		     doorState++;
		  }
		else
		  {
		     if (program[doorState][0]==REMOVE)
		       {
			  currentRoom = room;
			  Dimension d = latchKey.GetXY();
			  int bigXL = d.width/28;
			  int bigXR = (d.width + latchKey.getWidth()) / 28;
			  int bigYT = d.height/32;
			  int bigYB = (d.height + latchKey.getHeight()) / 32;
			  boolean flag = false;
			  if (room.MaterialArray[bigYT][bigXL] == this) flag=true;
			  if (room.MaterialArray[bigYT][bigXR] == this) flag=true;
			  if (room.MaterialArray[bigYB][bigXL] == this) flag=true;
			  if (room.MaterialArray[bigYB][bigXR] == this) flag=true;
			  if (!flag)
			    doorState++;
		       }
		     else if (program[doorState][0]==RESET)
		       {
			  currentRoom = room;
			  doorState++;
		       }
		     else if (program[doorState][0]==LEFT)
		       {
			  currentRoom = currentRoom.leftRoom;
			  if (currentRoom== null) currentRoom = room;
			  doorState++;
		       }
		     else if (program[doorState][0]==RIGHT)
		       {
			  currentRoom = currentRoom.rightRoom;
			  if (currentRoom== null) currentRoom = room;
			  doorState++;
		       }
		     else if (program[doorState][0]==UP)
		       {
			  currentRoom = currentRoom.upRoom;
			  if (currentRoom== null) currentRoom = room;
			  doorState++;
		       }
		     else if (program[doorState][0]==DOWN)
		       {
			  currentRoom = currentRoom.downRoom;
			  if (currentRoom== null) currentRoom = room;
			  doorState++;
		       }
		  }
		
		if (doorState == program.length)
		  doorState = 0;
	  }

	public void TouchedByItem(Item item) 
	  {
		if (item instanceof Key)
		  {
		     if (((Key)item).color.equals(keyColor))
		       {
			  latchKey = (Key) item;
			  room = latchKey.room;
		       }
		  }
		
		if (latchKey==null)
		  return;
		
		if (latchKey != item)
		  return;
		
		if (program[doorState].length==1)
		  {
		     if (program[doorState][0]==NARROW)
		       {
			  currentRoom = room;
			  Dimension d = latchKey.GetXY();
			  int X = d.width % 28;
			  int Y = d.height % 32;
			  if (X>=16 && X <=20 
			      && Y>=10 && Y<=14)
			    doorState++;
		       }
		     else if (program[doorState][0]==WIDE)
		       {
			  currentRoom = room;
			  doorState++;
		       }
		  }
		
		if (doorState == program.length)
		  doorState = 0;
		
	  }

	}