Hi guys
This is my first post. I’ve recently(1 year ago) started with java and am moving on into simple game development. JavaFX is the windowing tool to go with right now, so i decided to use it. Sadly, when I run my code in Eclipse, the program is not responding . After a few clicks, the message “Java™ Platform SE binary not responing”. It works if I comment out the whole while(isRunning)-part… Any ideas where i went wrong?
import java.util.ArrayList;
import java.util.Iterator;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.input.KeyEvent;
import javafx.stage.Stage;
public class Game extends Application
{
private Stage window = new Stage();
private static int width = 0;
private static int height = 0;
private static int FRAMES_PER_SECOND = 30;
private static double TIME_PER_FRAME = 1000 / FRAMES_PER_SECOND;
private boolean isRunning = true;
ArrayList<String> input = new ArrayList<String>();
ArrayList<Sprite> moneybagList = new ArrayList<Sprite>();
Sprite briefcase;
public Game()
{
//setScreen(width,height);
}
public static void setScreen(int mwidth, int mheight)
{
width = mwidth;
height = mheight;
}
public void start(Stage stage)
{
this.window = stage;
window.setTitle("Window Demo");
window.setResizable(false);
Group root = new Group();
Scene scene = new Scene(root, width, height);
window.setScene(scene);
Canvas canvas = new Canvas(width, height);
root.getChildren().add(canvas);
GraphicsContext gc = canvas.getGraphicsContext2D();
briefcase = new Sprite("briefcase.png");
//scene.setOnKeyPressed(new KeyboardHandler());
while(isRunning)
{
long startMiliTime = System.nanoTime() / 1000000;
//HANDLE EVENTS
handleEvents();
//UPDATE OBJECTS
update();
Iterator<Sprite> moneybagIter = moneybagList.iterator();
while (moneybagIter.hasNext())
{
Sprite moneybag = moneybagIter.next();
if (briefcase.intersects(moneybag))
{
moneybagIter.remove();
}
}
//moneybag.setOnAction()
//CLEAR CANVAS
gc.clearRect(0, 0, width, height);
//RENDER OBJECTS
render(gc);
//CAP FRAME RATE IF NECESSARY
long endMiliTime = System.nanoTime() / 1000000;
double delta = endMiliTime - startMiliTime;
double miliTimeToSleep = (TIME_PER_FRAME - delta);
int currentFPS = (int) Math.round(1000 / delta);
String sFPS = "";
if (miliTimeToSleep <= 0) //FPS lower than 60
{
continue;
}
else
{
try
{
Thread.sleep((long)miliTimeToSleep);
}
catch (InterruptedException e)
{
e.printStackTrace();
}
}
sFPS = Integer.toString(currentFPS);
gc.fillText("FPS " + sFPS,10.0,10.0);
gc.strokeText( "FPS " + sFPS, 10, 10);
if (delta >= 10000)
{
isRunning = false;
}
window.show();
}
//DELETE ALL SPRITES AND CLOSE WINDOW
cleanUp();
}
public void handleEvents(){}
public void update()
{
for (int i = 0; i < 15; i++)
{
Sprite moneybag = new Sprite();
moneybag.setImage("moneybag.png");
double px = 350 * Math.random() + 50;
double py = 350 * Math.random() + 50;
moneybag.setPosX(px);
moneybag.setPosY(py);
moneybagList.add(moneybag);
}
}
public void render(GraphicsContext gc)
{
briefcase.render(gc);
for (Sprite moneybag : moneybagList)
{
moneybag.render(gc);
}
}
public void cleanUp()
{
for(int i = 0; i < moneybagList.size(); i++)
{
moneybagList.remove(i);
}
window.close();
Platform.exit();
}
}
class KeyboardHandler implements EventHandler<KeyEvent>
{
ArrayList<String> input = new ArrayList<String>();
KeyboardHandler()
{
System.out.println("Created a KeyboardHandler...");
}
@Override
public void handle(KeyEvent e)
{
if (e.getEventType() == KeyEvent.KEY_PRESSED)
{
String code = e.getCode().toString();
if (!input.contains(code))
{
input.add(code);
}
}
else if (e.getEventType() == KeyEvent.KEY_RELEASED)
{
String code = e.getCode().toString();
input.remove(code);
}
}
}
If you need the Sprite/Main-file just tell me. The game is executed in main as
Game.launch(Game.class);
Any help appreciated.
Greez Half_NO_oB ;D
