I'm trying to make a little game with the java game engine called libGDX. I already got the player but he can't jump and I dont know why.
This is my GameScreen class:
public class GameScreen extends ScreenManager{
//For the view of the game and the rendering
private SpriteBatch batch;
private OrthographicCamera cam;
//DEBUG
private Box2DDebugRenderer b2dr;
//World, Player and so on
private GameWorld world;
private Player player;
private Ground ground;
public static float w, h;
public GameScreen(Game game) {
super(game);
//vars
w = Gdx.graphics.getWidth();
h = Gdx.graphics.getHeight();
//view and rendering
batch = new SpriteBatch();
cam = new OrthographicCamera();
cam.setToOrtho(false, w/2, h/2);
//debug
b2dr = new Box2DDebugRenderer();
//world, bodies ...
player = new Player(world);
ground = new Ground(world);
}
@Override
public void pause() {
}
@Override
public void show() {
}
@Override
public void render(float delta) {
//clearing the screen
Gdx.gl.glClearColor(0, 0, 0, 0);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
//updating
update(Gdx.graphics.getDeltaTime());
//render
batch.setProjectionMatrix(cam.combined);
//debug
b2dr.render(world.getWorld(), cam.combined);
}
@Override
public void resize(int width, int height) {
}
@Override
public void hide() {
}
@Override
public void dispose() {
}
@Override
public void onKlick(float delta) {
}
public void update(float delta){
world.update(delta);
player.keyInput();
System.out.println(player.getBody().getPosition().x);
System.out.println(player.getBody().getPosition().y);
}
}
and this is my Player class:
public class Player {
public static Body body;
public static BodyDef def;
private FixtureDef fd;
//set form
private PolygonShape shape;
private GameScreen gs;
public Player(GameWorld world){
def = new BodyDef();
def.fixedRotation = true;
def.position.set(gs.w / 4, gs.h / 4);
def.type = BodyType.DynamicBody;
body = world.getWorld().createBody(def);
shape = new PolygonShape();
shape.setAsBox(32 / 2, 32 / 2);
fd = new FixtureDef();
fd.shape = shape;
fd.density = 30;
body.createFixture(fd);
shape.dispose();
}
public static Body getBody() {
return body;
}
public static BodyDef getDef() {
return def;
}
public static void keyInput(){
if(Gdx.input.isKeyPressed(Input.Keys.UP)){
body.applyForceToCenter(0, 900, false);
System.out.println("PRESSED");
}
}
}
this finally is my GameWorld class:
public class GameWorld {
public static World world;
public GameWorld(){
world = new World(new Vector2(0f, -10f), false);
}
public void update(float delta){
world.step(1 / 60f, 5, 2);
System.out.println("WorldUPDATE");
}
public static World getWorld() {
return world;
}
}
I don't know why the body can't jump please help me if you can (: Thank you in advance.
