I need to make a game and I need to use textarea. I use libgdx library, but I can't pass String value from one class to other. My program is crashed every time. I guess due to constructers Error: Exception in thread "LWJGL Application" java.lang.NullPointerException at mario.game.Worlds.MainCodeProgram.jump(MainCodeProgram.java:1149)
When i input "jump" error will be in this line: if(zaidejas.b2body.getLinearVelocity().y == 0){zaidejas.b2body.applyLinearImpulse(new Vector2(0, 4f), zaidejas.b2body.getWorldCenter(), true);}
this is my inputs class (where i use textarea)
public class inputs implements Disposable {
private Skin skin;
private Viewport viewport;
public Stage stage;
private Table table;
private TextButton button;
public TextArea TF;
public inputs(SpriteBatch sb){
viewport = new FitViewport(1200, 624, new OrthographicCamera());
stage = new Stage(viewport, sb);
skin = new Skin(Gdx.files.internal("data/uiskin.json"));
button = new TextButton("Send", skin, "default");
TF = new TextArea("", skin);
TF.setWidth(300);
TF.setHeight(570);
TF.setPosition(0,54);
button.setWidth(300);
button.setHeight(54);
button.setPosition(0, 0);
button.addListener(new ClickListener(){
@Override
public void clicked(InputEvent event, float x, float y) {
MainCodeProgram h = new MainCodeProgram(TF.getText());
TF.setText("");
button.setTouchable(Touchable.disabled);
}
});
stage.addActor(TF);
stage.addActor(button);
Gdx.input.setInputProcessor(stage);
Gdx.input.setInputProcessor(stage);
}
public void setButtonTouchable(){
button.setTouchable(Touchable.enabled);
}
@Override
public void dispose() {
stage.dispose();
}
}
it is my main code:
public class MainCodeProgram extends JFrame implements Screen, TextInputListener, Disposable {
static ArrayList<String> firstintkint = new ArrayList<String>();
static ArrayList<Integer> firstintvalue = new ArrayList<Integer>(); //int
private Main zaidimas;
private OrthographicCamera orthographicCamera;
private TextureAtlas textureAtlas;
public static int kurislevel=1;
private Mario zaidejas;
public Stage stage;
private Hud hud;
private TmxMapLoader maploader;
private TiledMap tilemap;
static int walks = 0;
private OrthogonalTiledMapRenderer renderer;
private Viewport viewport;
private World world;
private Array<Item> items;
private LinkedBlockingQueue<ItemVector> itemstoSpawn;
String text="";
private Box2DDebugRenderer b2dr;
private OtherWorldCreator otherWorldCreator;
public String lose;
public MainCodeProgram(){
}
public MainCodeProgram(Main zaidimas,String tg) {
textureAtlas = new TextureAtlas("All.pack");
this.zaidimas = zaidimas;
orthographicCamera = new OrthographicCamera();
viewport = new FitViewport(Main.Width / Main.PPM, Main.Height / Main.PPM, orthographicCamera);
viewport.apply(); //nera
hud = new Hud(zaidimas.spriteBatch);
naujaslygis();
otherWorldCreator = new OtherWorldCreator(this);
zaidejas = new Mario( this);
world.setContactListener(new WorldContact());
items = new Array<Item>();
itemstoSpawn = new LinkedBlockingQueue<ItemVector>();
}
public MainCodeProgram(String text1){
lose = text1;
input(lose);
}
public TextureAtlas getAtlas(){return textureAtlas;}
@Override
public void show() {}
int i = 0, kur = 1;
public void spawnItem(ItemVector idef)
{
itemstoSpawn.add(idef);
}
public void handleSpawningItems(){
if(!itemstoSpawn.isEmpty())
{
ItemVector idef = itemstoSpawn.poll();
if(idef.type == Mushroom.class){items.add(new Mushroom(this, idef.position.x,idef.position.y));}
}
}
public void update(float dt)
{
handleSpawningItems();
world.step(1 / 60f, 6, 2);
zaidejas.update(dt);
for (Enemy enemy: otherWorldCreator.getEbemies()) {
enemy.update(dt);
if(enemy.getX() < zaidejas.getX() + 224 / Main.PPM){enemy.b2body.setActive(true);}
}
for(Item item : items){item.update(dt);}
hud.refresh(dt);
if(zaidejas.Dabartinebusena != Mario.State.mirti){orthographicCamera.position.x = zaidejas.b2body.getPosition().x;}
orthographicCamera.update();
renderer.setView(orthographicCamera);
}
@Override
public void render(float delta) {
update(delta);
int k = 0;
Gdx.gl.glClearColor(0,0,0,1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
renderer.render();
b2dr.render(world, orthographicCamera.combined);
zaidimas.spriteBatch.setProjectionMatrix(orthographicCamera.combined);
zaidimas.spriteBatch.begin();
zaidejas.draw(zaidimas.spriteBatch);
for (Enemy enemy: otherWorldCreator.getEbemies())
enemy.draw(zaidimas.spriteBatch);
for(Item item : items)
item.draw(zaidimas.spriteBatch);
zaidimas.spriteBatch.end();
zaidimas.spriteBatch.setProjectionMatrix(hud.stage.getCamera().combined);
hud.stage.draw();
if(gameOver())
{
kurislevel = 1;
zaidimas.setScreen(new GameOverWorld(zaidimas));
dispose();
}
if ((zaidejas.getX() > 15 && kurislevel < 4)) {
kurislevel++;
if(kurislevel!=4){
zaidimas.setScreen(new MainCodeProgram(zaidimas,""));
dispose();
}
}
if (kurislevel==4)
{
zaidimas.setScreen(new WinWindow(zaidimas));
dispose();
}
Main.inp1.stage.draw();
}
@Override
public void resize(int width, int height) {viewport.update(width,height);}
public World getWorld(){ return world;}
public TiledMap getMap(){return tilemap;}
public void naujaslygis()
{
maploader = new TmxMapLoader();
if(kurislevel == 1){tilemap = maploader.load("mario1lvl.tmx");
}
if (kurislevel == 2){tilemap = maploader.load("mario2lvl.tmx");}
if (kurislevel == 3){tilemap = maploader.load("mario3lvl.tmx");}
if (kurislevel == 4){
zaidimas.setScreen(new WinWindow(zaidimas));}
renderer = new OrthogonalTiledMapRenderer(tilemap, 1 / Main.PPM);
orthographicCamera.position.set(viewport.getWorldWidth() / 2, viewport.getWorldHeight() / 2, 0);
world = new World(new Vector2(0, -10 ), true);
b2dr = new Box2DDebugRenderer();
}
@Override
public void dispose() {
tilemap.dispose();
renderer.dispose();
world.dispose();
b2dr.dispose();
hud.dispose();
}
ArrayList<Integer> ifassss = new ArrayList<Integer>();
public void input(String text) {
ArrayList<String> pseudokodas = new ArrayList<String>();
this.text = text;
i = 0;
String str = text;
String split[] = str.split("/");
for (String spacebar : split) {
pseudokodas.add(spacebar);
i = 0;
}
int foras = 0;
for (int i = 0;i < pseudokodas.size(); i++) {
// System.out.println(pseudokodas.get(i));
if(pseudokodas.get(i).equals("jump")||pseudokodas.get(i).equals("jump;")){jump();}
if(pseudokodas.get(i).startsWith("int")){recognizeint(pseudokodas.get(i));}
if(pseudokodas.get(i).startsWith("if")){ifas(pseudokodas.get(i),0);}
if(pseudokodas.get(i).startsWith("for"))
{
recognizefor(pseudokodas.get(i));
foras++;
}
if(pseudokodas.get(i).endsWith("--")||pseudokodas.get(i).endsWith("--;"))
{
if(foras == 0){minuminus(pseudokodas.get(i));}
else{foras--;}
}
if(pseudokodas.get(i).endsWith("++")||pseudokodas.get(i).endsWith("++;"))
{
if(foras==0){plusplus(pseudokodas.get(i));}
else{foras--;}
}
if(istheend){
walks = 0;
istheend = false;
}
}
}
void plusplus(String zodis) {
if(zodis.startsWith(firstintkint.get(0))){firstintvalue.set(0, firstintvalue.get(0)+1);}
}
void minuminus(String zodis) {
if(zodis.startsWith(firstintkint.get(0))){firstintvalue.set(0, firstintvalue.get(0)-1);}
}
void recognizeint(String zodis) {
String convertstrtoint = null;
String int1 = zodis;
int reiksme = 0;
String int2 = "";
String int3[] = int1.split("[ ;'']");
for (int c = 0; c < int3.length ; c++) {
if(int3[c].startsWith("int")) {
firstintkint.add(int3[c+1]);
try {reiksme = (Integer.parseInt(int3[c+3]));} catch (NumberFormatException e) {}
firstintvalue.add(reiksme);
int2+="int"+" "+int3[c+1]+" "+"="+" "+int3[c+3]+";";
}
convertstrtoint = zodis.replace(int2,"");
}
input(convertstrtoint);
}
public static int isif = 0;
public static int inforisif=0;
public static String inifisfor=null;
public static String inifiswhile=null;
public static int wasif=0;
void ifas(String a, int b) {
boolean int1 = false;
boolean int2 = false;
boolean stringarchar=false;
boolean stringarchar2=false;
int vykdyk = 0;
int tolyn = 0;
String pirmareiksme = null;
String antrareiksme = null;
Integer pirmareiksme2 = null;
double antrareiksme2 = 0;
isif = b;
String ifas;
ifas = a;
String splitif[] = ifas.split(" ");
boolean artesti = true;
for (int l = 0; l < splitif.length; l++) {
if(splitif[l].equals("1")){
}
}
int kuriojvietoj1=1;
int kuriojvietoj2=3;
int kuriojvietojvidurio=2;
if (isif==0) {
try {
pirmareiksme2 = (Integer.parseInt(splitif[kuriojvietoj1]));
} catch (NumberFormatException e) {
for (int p = 0; p < firstintkint.size(); p++) {
if(splitif[kuriojvietoj1].equals(firstintkint.get(p)))
{
pirmareiksme2=firstintvalue.get(p);
int1=true;
}
}
if(stringarchar==false&&int1==false){pirmareiksme=splitif[kuriojvietoj1];}
}
try {
antrareiksme2 = (Integer.parseInt(splitif[kuriojvietoj2]));
} catch (NumberFormatException e) {
for (int p = 0; p < firstintkint.size(); p++) {
if(splitif[kuriojvietoj2].equals(firstintkint.get(p)))
{
int2=true;
antrareiksme2=firstintvalue.get(p);
}
}
}
}
if (isif==1)
{
if(inforisif==0){
kuriojvietoj1+=5;
kuriojvietoj2+=5;}
if(inforisif!=0){
kuriojvietoj1+=7;
kuriojvietoj2+=7;}
try {
pirmareiksme2 = (Integer.parseInt(splitif[kuriojvietoj1]));
} catch (NumberFormatException e) {
for (int l = 0; l < firstintkint.size(); l++) {
if(splitif[kuriojvietoj1].equals(firstintkint.get(l)))
{
int1=true;
pirmareiksme2=firstintvalue.get(l);
}
}
}
try {
antrareiksme2 = (Integer.parseInt(splitif[kuriojvietoj2]));
}
catch (NumberFormatException e) {
for (int l = 0; l < firstintkint.size(); l++) {
if(splitif[kuriojvietoj2].equals(firstintkint.get(l)))
{
int2=true;
antrareiksme2=firstintvalue.get(l);
}
}
}
}
if (artesti&&isif==0) {
if (( stringarchar&&int1==false)||(stringarchar&&int2==false)||(int1==false&&int2==false)) {
if (pirmareiksme.equals(antrareiksme) && splitif[2].equals("=="))
vykdyk++;
else if (!pirmareiksme.equals(antrareiksme) && splitif[2].equals("!="))
vykdyk++;
}
else if (pirmareiksme2 == antrareiksme2 && splitif[kuriojvietojvidurio].equals("==") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else if (pirmareiksme2 != antrareiksme2 && splitif[kuriojvietojvidurio].equals("!=") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else if (pirmareiksme2 < antrareiksme2 && splitif[kuriojvietojvidurio].equals("<") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else if (pirmareiksme2 > antrareiksme2 && splitif[kuriojvietojvidurio].equals(">") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else if (pirmareiksme2 <= antrareiksme2 && splitif[kuriojvietojvidurio].equals("<=") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else if (pirmareiksme2 >= antrareiksme2 && splitif[kuriojvietojvidurio].equals(">=") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else {
artesti = false;
vykdyk = 0;
}
}
else if (artesti&&isif==1) {
if(inforisif==0){
kuriojvietojvidurio+=5;}
if(inforisif!=0){
kuriojvietojvidurio+=7;}
if (pirmareiksme2 == antrareiksme2 && splitif[kuriojvietojvidurio].equals("==") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else if (pirmareiksme2 != antrareiksme2 && splitif[kuriojvietojvidurio].equals("!=") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else if (pirmareiksme2 < antrareiksme2 && splitif[kuriojvietojvidurio].equals("<") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else if (pirmareiksme2 > antrareiksme2 && splitif[kuriojvietojvidurio].equals(">") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else if (pirmareiksme2 <= antrareiksme2 && splitif[kuriojvietojvidurio].equals("<=") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else if (pirmareiksme2 >= antrareiksme2 && splitif[kuriojvietojvidurio].equals(">=") && pirmareiksme2 + antrareiksme2 != 0) {
vykdyk++;
} else {
artesti = false;
vykdyk = 0;
}
}
wasif=vykdyk;
if (vykdyk==0){
int vieta = 0;
if (isif==1&&inforisif!=0) {
vieta = 13;//10
}
if (isif==0&&inforisif!=0) {
vieta = 6;//5
}
if (isif==1&&inforisif==0) {
vieta = 10;
}
if (isif==0&&inforisif==0) {
vieta = 5;
}
for (int l = 0; l < splitif.length; l++) {
if(splitif[l].startsWith("else"))
{
String viduje = splitif[l];
String[] ife = viduje.split("[{;}]");
String stringas=null;
for (int m = 0; m < ife.length; m++) {
stringas+="/"+ife[m]+"/";
}
input(stringas);
}}}
if ( vykdyk != 0 )
{
int vieta = 0;
if (isif==1&&inforisif!=0) {
vieta = 13;
}
if (isif==0&&inforisif!=0) {
vieta = 6;
}
if (isif==1&&inforisif==0) {
vieta = 10;
}
if (isif==0&&inforisif==0) {
vieta = 5;
}
String viduje = splitif[vieta];
String[] ife = viduje.split("[{;}]");
int kiek = ife.length;
for (int l = 0; l < ife.length; l++) {
if (ife[l].equals("jump")) {
jump();
}
if (ife[l].startsWith("while")) {
inifiswhile="while( "+splitif[6]+" "+splitif[7]+" "+splitif[8]+" "+splitif[9]+" "+splitif[10];//+" "+splitif[11]+" "+splitif[12];
recognizewhile(inifiswhile);
}
else if (ife[l].startsWith("for")) {
inifisfor="for(int "+splitif[6]+" "+splitif[7]+" "+splitif[8]+" "+splitif[9]+" "+splitif[10]+" "+splitif[11]+" "+splitif[12];
recognizefor(inifisfor);
}
if (ife[l].startsWith("if")||ife[l].startsWith(";if")) {
isif++;
ifassss.add(11 + l);
kiek = l;
String ifass = "";
String ifassa = "";
int ifvietapab=0;
for (int u = 0; u < ife.length; u++) {
if (ife[u].endsWith("}"))
{
ifvietapab=u;
}
}
for (int d = l+6; d < ifvietapab; d++) {
ifassa += " " + ife[d];
}
if(isif==1){
ifas(ifas,isif);}
}
}
}
isif=0;
inforisif=0;
wasif=vykdyk;
}
public static int isfor = 0;
public void recognizefor(String zodis)
{
String foras = zodis;
String splitfor[] = foras.split("[ (),]");
int firstvalue1 = 0;
int secondvalue1 = 0;
int run = 0;
boolean artesti=true;
boolean int1 = false;
boolean int2 = false;
String firstvalue = null;
String secondvalue = null;
try {firstvalue1=(Integer.parseInt(splitfor[4]));
}
catch(NumberFormatException e)
{
for (int a = 0; a < firstintkint.size(); a++) {
if(splitfor[4].equals(firstintkint.get(a)))
{
int1=true;
secondvalue1=firstintvalue.get(a);
}
}
}
try {secondvalue1=(Integer.parseInt(splitfor[8]));
}
catch(NumberFormatException e)
{
for (int a = 0; a < firstintkint.size(); a++) {
if(splitfor[8].equals(firstintkint.get(a)))
{
int2=true;
secondvalue1=firstintvalue.get(a);
}
}
}
int isif1 = 0;
int iselse = 0;
ArrayList<Integer> if1 = new ArrayList<Integer>();
ArrayList<Integer> else1 = new ArrayList<Integer>();
ArrayList<Integer> for1 = new ArrayList<Integer>();
ArrayList<Integer> parentheses = new ArrayList<Integer>();
for (int a = 0; a <splitfor.length ; a++) {
if(splitfor[a].endsWith("}")) {
parentheses.add(a);
}
}
String in = null;
int where = 0;
if(isfor == 0){in = splitfor[11]; //11
}
else{
{ for (int b = 0; b <splitfor.length ; b++) {
if (splitfor[b].startsWith("{")&&splitfor[b-1].endsWith("++")) {
{in = splitfor[b];}
}}}
}
{
String[] infor = in.split("[{;}]");
int count = infor.length;
for (int h = 0; h < count; h++) {
if (infor[h].equals("if")) {
isif1++;
if1.add(11 + h);
inforisif++;
}
if (infor[h].equals("else")) {
iselse++;
else1.add(11 + h);
}
if (infor[h].startsWith("for")) {
isfor++;
if(h!=0){
for1.add(11 + h);
kur=11+h;}
else {for1.add(11);
kur=11;}
}
if (infor[h].equals("jump")) {
for (int p = firstvalue1; p < secondvalue1; p++) {
jump();
}
} }
String inforiswhile = "while( ";
if(infor[h].startsWith("while")) {
int where1 =0;
for (int k = 0; k < splitfor.length; k++) {
if(splitfor[k].contains("while")){
where1 = k;}
}
for (int k = where1+1; k < splitfor.length; k++) {
if(k==where1+1){inforiswhile+=splitfor[k];}
else if(k==where1+2){inforiswhile+=splitfor[k]+" ";}
else if(k==where+3){inforiswhile+=splitfor[k]+" ";}
else if(k == where1+4){inforiswhile+=splitfor[k]+" ";}
else if(k == where1+5){inforiswhile+=splitfor[k]+") ";}
else if(k == where1+6){inforiswhile+=splitfor[k];}
else{inforiswhile+=splitfor[k]+" ";}
}
for (int p = firstvalue1; p < secondvalue1; p++) {
recognizewhile(inforiswhile);
}
}}
}
if(isif1!=0) {
String if5 = "";
for (int g = if1.get(0); g < splitfor.length; g++) {
if5 += " "+splitfor[g];
}
for (int p = firstvalue1; p <secondvalue1; p++) {
inforisif = 1;
ifas(if5,0);
}
isif1--;
}
if(isfor!=0) {
String forasss = "";
for (int d = kur-1; d < splitfor.length; d++) {
if(d!=-1){
forasss += " "+splitfor[d];
}
}
for (int p = firstvalue1; p <secondvalue1; p++) {
recognizefor(forasss);
}
isfor--;
}
}
public void jump()
{
if(istheend){try {Thread.sleep(1*walks);} catch (InterruptedException e) {e.printStackTrace();}}
else{try {Thread.sleep(50*walks);} catch (InterruptedException e) {e.printStackTrace();}}
walks = 0;
if(zaidejas.b2body.getLinearVelocity().y == 0){zaidejas.b2body.applyLinearImpulse(new Vector2(0, 4f), zaidejas.b2body.getWorldCenter(), true);}
else if(zaidejas.b2body.getLinearVelocity().y != 0){
try {Thread.sleep(1000);} catch (InterruptedException e) {e.printStackTrace();}
zaidejas.b2body.applyLinearImpulse(new Vector2(0, 4f), zaidejas.b2body.getWorldCenter(), true);
}
}
boolean istheend = false;
}
And my world loading class:
public class Main extends Game {
public SpriteBatch spriteBatch;
public static int Width = 400;
public static int Height = 208;
public static final short objectwhit = 32;
public static final short mariowhit= 2;
public static final short itemwhit = 256;
public static float PPM = 100;
public static final short marioheadwhit = 512;
public static final short blockwhit = 4;
public static final short coinwhit = 8;
public static final short nothing = 0;
public static final short ground = 1;
public static final short destroyedwhit = 16;
public static final short enemywhit = 64;
public static final short enemyheadwhit = 128;
public static inputs inp1;
@Override
public void create () {
spriteBatch = new SpriteBatch();
inp1 = new inputs(spriteBatch);
setScreen(new MainCodeProgram(this,""));
}
@Override
public void dispose() {
super.dispose();
spriteBatch.dispose();
}
}
I hope you will help me with this mistake. Thank you
