package gametemplate;
import java.awt.*;
import java.awt.image.*;
import javax.imageio.ImageIO;
import java.io.*;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
public abstract class Game {
	GameApplet applet;
	GamePanel gp;
	public final void setup(GameApplet a,GamePanel g){
		gp=g;
		applet=a;
		init();
	}
	
	
	//Override this method if you want to do something before the game starts.
	public void init(){
		
	}

	//You must override this method. In it, you should first update the game status,
	//And then paint in the screen using Graphics g.
	public abstract void paint(Graphics g);
	
	

	//This method will be called whenver the aplet is closed. Override it if you want to do
	//something before closing the applet.
	public  void stop(){
		
	}
	
	//Use this method to set the time that will pass between every frame refresh.
	//It is in milliseconds
	public final void setSleepTime(int ms){
		gp.setSleepTime(ms);
	}
	//Use this method to set the width and height of your game panel. I recommend to use this
	//method only in the beggining of the game, because resizing the dimensions can mess up
	//some game variables.
	public final void resize(int w, int h){
		applet.resize(w, h);
	}
	
	//Use this method to import images you made into the game. I would reccomend using
	//.png images if you need transparency, and .jpg images if you need to save storage space
	//and decrease loading times.
	//Null will be returned if the program will not find the image.
	public final Image readBufferedImage(String name){
		try{
			Image i=applet.getImage(applet.getCodeBase(),name);
			return i;
		} catch (Exception e){
			e.printStackTrace(System.err);
		}
		return null;
	}
	
	//Override this method if you want to set the background color yourself.
	//The default color is black. This method is being called every time the
	//screen is redrawn. If null will be returned, no background will be drawn.
	//Ise this to save efficiency.
	public Color getBackgroundColor(){
		return Color.black;
	}
	

	
	
	//A useful method to determine the mouse position. Note that null will be returned
	//if the mouse is not in the GamPanel, so check it before you use it.
    public final Point getMousePosition(){
    	return gp.getMousePosition();
    }

	
	//The next five are mouse input methods. Override them to handle mouse input.
    //Use the methods of MouseEvent to find information about the mouse position
    //and what button was clicked.
    public void mousePressed(MouseEvent e){
    }
    public void mouseClicked(MouseEvent e){
    }
    public void mouseReleased(MouseEvent e){
     }
    public void mouseEntered(MouseEvent e){
    }
    public void mouseExited(MouseEvent e){
    }
    

    //The next three are keyboard input methods. Override them to handle keyboard input
    //use KeyEvent methods to find out what key was pressed
    public void keyPressed(KeyEvent e){
    }  	  
    public void keyTyped(KeyEvent e){
    }  	  
    public void keyReleased(KeyEvent e){
    }
    
    //A method for setting mouse cursors. You need to supply the image you want to use as
    //cursor, the hotspot (the actual point in the image which is where the mouse points. For
    //regular cursors (0,0) will be fine, but use the cnter of the image for a crosshair cursor),
    // and the cursor name (I do not think that it affects anything)
    //If there will be a problem with the image, a transparent cursor will be set.
    //You can also use the setTransparentCursor method, and then use getMousePosition in
    //the paint method to draw something wherever the cursor is. I would reccomend this option
    //if you want the mouse cursor to change (animated cursor).
    public final void setCursor(Image i, Point hotspot, String name){
    	if(i==null){
    		setTransparentCursor();
    		return;
    	}
    	gp.setCursor(Toolkit.getDefaultToolkit().createCustomCursor(i, hotspot, name));
    }
    
    
    //Sets a transparent mouse cursor (making it invisible).
    public final void setTransparentCursor(){
    	int[] pixels = new int[16 * 16];
    	Image image = Toolkit.getDefaultToolkit().createImage(
    	        new MemoryImageSource(16, 16, pixels, 0, 16));

    	gp.setCursor(Toolkit.getDefaultToolkit().createCustomCursor
                (image, new Point(0, 0), "invisiblecursor"));
    }


}