// GameScreen.java

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.io.IOException;

/**
 * A factory class for the game itself.
 * This class deals with all decisions and rendering for the game.
 * Primarily it allocates control between smaller more specific classes that
 * make up the game.  It also initliases all resources required for game-play
 * and in-game menus.
 *
 * @author   Jack Wootton
 * @version  Last modified 10/03/05  
 **/ 
public class GameScreen
{
	private static boolean isActive;

	private int defaultFontHeight;

	private static int width, height, halfScreenWidth, halfScreenHeight;

	private static boolean inWorld, inShop, inOptions, inQuestions, inInventory, inInn;

	public GameScreen() { }

	public static void setInWorld(boolean b)
	{
		inWorld = b;
		if (b)
		{
			inShop = false;
			inOptions = false;
			inQuestions = false;
			inInventory = false;
			inInn = false;
		}
	}

	public static void setInShop(boolean b)
	{
		inShop = b;
		if (b)
		{
			inWorld = false;
			inOptions = false;
			inQuestions = false;
			inInventory = false;
			inInn = false;
		}
	}

	public static void setInOptions(boolean b)
	{
		inOptions = b;
		if (b)
		{
			inWorld = false;
			inShop = false;
			inQuestions = false;
			inInventory = false;
			inInn = false;
		}
	}

	public static void setInQuestions(boolean b)
	{
		inQuestions = b;
		if (b)
		{
			inWorld = false;
			inShop = false;
			inOptions = false;
			inInventory = false;
			inInn = false;
		}
	}

	public static void setInInventory(boolean b)
	{
		inInventory = b;
		if (b)
		{
			inWorld = false;
			inShop = false;
			inOptions = false;
			inQuestions = false;
			inInn = false;
		}
	}

	public static void setInInn(boolean b)
	{
		inInn = b;
		if (b)
		{
			inWorld = false;
			inShop = false;
			inOptions = false;
			inQuestions = false;
			inInventory = false;
		}
	}

	public static boolean getInWorld()
	{
		return inWorld;
	}

	public static boolean getInShop()
	{
		return inShop;
	}

	public static boolean getInOptions()
	{
		return inOptions;
	}

	public static boolean getInQuestions()
	{
		return inQuestions;
	}

	public static boolean getInInventory()
	{
		return inInventory;
	}

	public static boolean getInInn()
	{
		return inInn;
	}


	public static void initGame(int w, int h)
	{
		width = w;

		height = h;

		halfScreenWidth = h / 2;

		halfScreenHeight = h / 2;

		TheOthers.init();
		
		World.init(width, height);

		Player.init(halfScreenWidth, halfScreenHeight);		// Calls Player.setup();

		WeaponsShop.init(w, h);

		Options.init(w,h);

		TaskHut.init(w,h);

		Inventory.init(w,h);

		Inn.init(w,h);

		inWorld = false;

		inShop = false;
	}


	public static boolean isActive() { return isActive; }


	public static void destroy()
	{ 
		/* destroy and null things we don't need in memory */
	}


	protected static void paint(Graphics graphics)
	{
		isActive = true;
		
		graphics.setColor(0x00000000);

		graphics.fillRect(0, 0, width, height);
		
		if (inWorld)
		{
			World.setView(Player.getCenterX() - halfScreenWidth, Player.getCenterY() - halfScreenHeight);

			// Paint the world and everything in it

			World.render(graphics);
		}
		else if (inShop)
		{
			// Draw shop menu

			WeaponsShop.paint(graphics);
		}
		else if (inOptions)
		{
			// Draw options menu

			Options.paint(graphics);
		}
		else if (inQuestions)
		{
			// Draw questions interface

			TaskHut.paint(graphics);
		}
		else if (inInventory)
		{
			// Draw the players inventory

			Inventory.paint(graphics);
		}
		else if (inInn)
		{
			// Draw the Inn interface

			Inn.paint(graphics);
		}
		
	}


	public static void processKey(int keyCode, int GameActionKey)
	{
		if (inWorld)
		{
			// The effect of keys in the world is to move the player
			
			if (GameActionKey == Canvas.UP) 
			{
				Player.moveUp();
			}
			else if (GameActionKey == Canvas.DOWN)
			{
				Player.moveDown();
			}
			else if (GameActionKey == Canvas.RIGHT) 
			{
				Player.moveRight();
			}
			else if (GameActionKey == Canvas.LEFT) 
			{
				Player.moveLeft();
			}

			World.cycle();	
		}
		else if (inShop)
		{
			// The effect of keys in the shop is too highlight items to buy

			WeaponsShop.processKey(keyCode, GameActionKey);
		}
		else if (inOptions)
		{
			// The effect of keys in the options screen is too highlight options

			Options.processKey(keyCode, GameActionKey);
		}
		else if (inQuestions)
		{
			TaskHut.processKey(keyCode, GameActionKey);
		}
		else if (inInventory)
		{
			Inventory.processKey(keyCode, GameActionKey);
		}
		else if (inInn)
		{
			Inn.processKey(keyCode, GameActionKey);
		}

		
	}

	
	protected static void processKeyRepeated(int keyCode, int GameActionKey)
	{
		
	}


	public static void newGame()
	{
		// We don't bother creating a new player since initResources() does that, so just reset player data.

		Player.reset();
	}
}