import javax.microedition.lcdui.*;
import javax.microedition.lcdui.game.Sprite;

public class MIDPCanvas extends Canvas implements Runnable {
private Tank tank;
public Sprite auto; //автомобиль
public Sprite soldier; //солдат
public Sprite plane; //самолет
public Sprite explosion; //спрайт взрыва
private Image bg,panel;
public int score; //очки
public Thread t;
    
    public MIDPCanvas() {
    this.setFullScreenMode(true);
    tank=new Tank(this);
    try{
    auto=new Sprite(Image.createImage("/auto.png"),60,32);
    auto.setFrameSequence(new int[]{0,0,0,1,1,1});
    soldier=new Sprite(Image.createImage("/soldier.png"),25,38);
    soldier.setFrameSequence(new int[]{0,0,1,1});
    plane=new Sprite(Image.createImage("/plane.png"),100,34);
    explosion=new Sprite(Image.createImage("/explosion.png"),30,30);
    explosion.setFrameSequence(new int[]{0,0,1,1,2,2,3,3,4,4,4});
    explosion.setVisible(false);
    bg=Image.createImage("/bg.png");
    panel=Image.createImage("/panel.png");
    }catch(Exception e){}
    }
    
    public void startGame(Display d){
    tank.setPosition(5,getHeight()-45);
    auto.setPosition(getWidth()+100,getHeight()-45);
    soldier.setPosition(getWidth()+50,getHeight()-45);
    plane.setPosition(1000+100, -1000);
    score=0;
    d.setCurrent(this);
    t=new Thread(this);
    t.start();
    }
    
    public void run(){
    while(true){
    try{
    tank.updateShell();
    this.autoUpdate();
    this.updateSoldier();
    this.updatePlane();
    this.updateExplosion();
    t.sleep(50-(score)/20);    
    }catch(Exception e){}    
    if (tank.getLive()<=0) {
    try{
    t.sleep(5000);
    }catch(Exception e){}    
    Main.link.destroyApp(true);
    }
    }    
    }

    public void paint(Graphics g) {
    g.setColor(255, 255, 255);
    g.fillRect(0, 0, getWidth(),getHeight());
    g.drawImage(bg, 0, this.getHeight()-320, 20);
    g.drawImage(panel, 0, 0, 20);
    g.setColor(0, 0, 0);
    g.setFont(Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN, Font.SIZE_SMALL));
    g.drawString("Мощность снаряда="+tank.getPowerShell()+" (4-изм.)",this.getWidth()/2,13,Graphics.HCENTER|Graphics.BASELINE);
    g.drawString("Броня="+tank.getLive()+",очки="+score,this.getWidth()/2,30,Graphics.HCENTER|Graphics.BASELINE );
    tank.paint(g);
    auto.paint(g);
    soldier.paint(g);
    plane.paint(g);
    explosion.paint(g);
    if (tank.getLive()<=0){
    g.drawImage(panel, 0, getHeight()/2,20);
    g.setColor(0,0,0);
    g.drawString("Конец игры.",this.getWidth()/2, getHeight()/2+10,Graphics.HCENTER|Graphics.BASELINE);
    }
    repaint();
    }
    
    private void autoUpdate(){
    auto.move(-2, 0);
    auto.nextFrame();
    if (tank.collidesWith(auto,true)) {
    tank.attack(20);
    explosion.setFrame(0);
    explosion.setPosition(auto.getX(),auto.getY()+10);
    explosion.setVisible(true);
    auto.setPosition(this.getWidth()+100-(score/10), auto.getY());
    }
    }
    
    private void updateSoldier(){
    soldier.move(-2, 0);
    soldier.nextFrame();
    if (tank.collidesWith(soldier, true)){
    tank.attack(5);
    explosion.setFrame(0);
    explosion.setPosition(soldier.getX(),soldier.getY()+10);
    explosion.setVisible(true);
    soldier.setPosition(this.getWidth()+50-(score/10), soldier.getY());
    }
    }
    
    private void updatePlane(){
    plane.move(-2,2);
    plane.nextFrame();
    if (tank.collidesWith(plane, true)){
    tank.attack(50);
    explosion.setFrame(0);
    explosion.setPosition(plane.getX()+50,plane.getY()+30);
    explosion.setVisible(true);
    plane.setPosition(1000+100,-1000);
    }
    }
    
    
    
    
    
    private void updateExplosion(){
    if (explosion.getFrame()<explosion.getFrameSequenceLength()-1) explosion.nextFrame();
    if (explosion.getFrame()==explosion.getFrameSequenceLength()-1) explosion.setVisible(false);
    }

 
    protected void keyPressed(int keyCode) {
    if (keyCode==KEY_NUM2) tank.upTrunk();
    if (keyCode==KEY_NUM8) tank.downTrunk();
    if (keyCode==KEY_NUM5) tank.fire();
    if (keyCode==KEY_NUM4) tank.checkPowerShelll();
    }

    
    
}