I have the following code for a constructor:
public Building(Graphics g, int xb, int yb, int wb, int lb,boolean chklocb, Point nwlocb) {
x=xb;
y=yb;
w=wb;
l=lb;
chkloc=chklocb;
nwloc=nwlocb;
if(chkloc){
x = (int)nwloc.getX();
y = (int)nwloc.getY();
//System.out.print(i);
}
else{
System.out.print("mhffffff");
}
g.setColor(Color.BLACK);
g.drawRect(x,y,w,l);
g.fillRect(x,y,w,l);
}
And I have tried using setLocation() to move it.
This only made it disappear.
This is how I tried to move it:
public void mouseDragged(MouseEvent e){
//pset=MouseInfo.getPointerInfo().getLocation();
//panel.setVisible(false);
if(panel.contains(MouseInfo.getPointerInfo().getLocation())){
contains=true;
}
if(contains){
//panel=new Building(getGraphics(),(int)ptrck.x,(int)ptrck.y,100,100,contains,pset);
//panel.Nwloc(pset);
// remove(panel);
// constraints.gridx=(int)pset.getX();
// constraints.gridy=(int)pset.getY();
// add(panel);
e.translatePoint(e.getComponent().getLocation().x-x, e.getComponent().getLocation().y-y);
panel.setLocation(e.getX(), e.getY());
z.prnt("testcontain");
}
}
How can I drag it?
Related
I wanted to create a simple 30x30 isometric tiled map and add a listener to be able to click on the tiles. I looked up a lot of the articles and posts here but none of them helped me.
My issue is, i have a viewport, 30x17, a camera, a stage and a tiled map with tileWidth = 32 and tileHeight = 16 pixels.
Now when i render the tiled map it looks fine.
When i click on stage and try to get the world coordinates i see some really weird coordinates.
This is the code:
private static final float TILE_WIDTH = 32;
private static final float TILE_HEIGHT = 16;
private OrthographicCamera camera;
private Viewport viewport;
private Stage stage;
private IsometricTiledMapRenderer isometricTiledMapRenderer;
private Matrix4 isoTransform;
private Matrix4 invIsotransform;
public void load(AssetManagerLoaderV2 assetManagerLoader) {
assetManagerLoader.load();
init();
camera = new OrthographicCamera();
viewport = new FitViewport(30, 17, camera);
stage = new Stage(viewport);
TiledMap tiledMap = new TiledMapGenerator(assetManagerLoader).generate(30, 30);
isometricTiledMapRenderer = new IsometricTiledMapRenderer(tiledMap, 1/32f);
stage.addListener(new InputListener() {
#Override
public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {
System.out.println(screenToCell(x, y));
return true;
}
});
}
#Override
public void show() {
Gdx.input.setInputProcessor(stage);
}
#Override
public void render(float delta) {
DrawUtils.clearScreen();
viewport.apply();
isometricTiledMapRenderer.setView(camera);
isometricTiledMapRenderer.render();
}
#Override
public void resize(int width, int height) {
stage.getViewport().update(width, height, true);
}
#Override
public void pause() {
}
#Override
public void resume() {
}
#Override
public void hide() {
}
#Override
public void dispose() {
isometricTiledMapRenderer.dispose();
stage.dispose();
}
public void init () {
//create the isometric transform
isoTransform = new Matrix4();
isoTransform.idt();
isoTransform.translate(0.0f, 0.25f, 0.0f);
isoTransform.scale((float)(Math.sqrt(2.0) / 2.0), (float)(Math.sqrt(2.0) / 4.0), 1.0f);
isoTransform.rotate(0.0f, 0.0f, 1.0f, -45.0f);
//... and the inverse matrix
invIsotransform = new Matrix4(isoTransform);
invIsotransform.inv();
}
public Vector2 worldToCell(float x, float y) {
float halfTileWidth = TILE_WIDTH * 0.5f;
float halfTileHeight = TILE_HEIGHT * 0.5f;
float row = (1.0f/2) * (x/halfTileWidth + y/halfTileHeight);
float col = (1.0f/2) * (x/halfTileWidth - y/halfTileHeight);
return new Vector2((int)col,(int)row);
}
public Vector2 screenToWorld(float x, float y){
Vector3 touch = new Vector3(x,y,0);
camera.unproject(touch);
touch.mul(invIsotransform);
touch.mul(isoTransform);
return new Vector2(touch.x,touch.y);
}
public Vector2 screenToCell(float x, float y) {
Vector2 world = screenToWorld(x,y);
world.y -= TILE_HEIGHT *0.5f;
return worldToCell(world.x,world.y);
}
Does anyone have an idea how to write worldToCell to get the proper coordinates?
I found the issue, i was missing one step.
This is what touchDown should look like:
#Override
public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {
Vector2 newCoords = stage.stageToScreenCoordinates(new Vector2(x, y));
System.out.println(screenToCell(newCoords.x, newCoords.y));
return true;
}
I need to convert stage coordinates to screen coordinates, now this code is working.
Currently, the PopupMenu will show up when I right-click on the TrayIcon in the SystemTray. However, I want it to do the same when I left-click on the TrayIcon.
I thought I might accomplish this by using a mouseListener on the TrayIcon, but I don't know what method to invoke in the mouseClicked event to achieve the desired results.
icon = new TrayIcon(img, tooltip, popup);
icon.addMouseListener(
new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
popup.setEnabled(true);
}
});
Using the setEnabled() method does not make the popup menu appear when I left-click the TrayIcon. It actually has no noticeable effect. I'm wondering what method I should use in the mouseClicked() body in order to make the popup show up when it is left-clicked.
Basically, in your mouse listener, you need to determine which button was pressed (and optional, how many times).
The critical piece of code is this...
if (e.getButton() == MouseEvent.BUTTON1 && e.getClickCount() == 1) { ... }
I've also included some additional code that makes sure the popup does not cover the task bar and is displayed within the viewable area of the screen (it's a nit pick of mine ;))
public class TestTrayIcon02 {
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception ex) {
}
try {
final TrayIcon ti = new TrayIcon(ImageIO.read(getClass().getResource("/Smiley.png")), "Have a nice day");
final JPopupMenu popup = new JPopupMenu();
JMenuItem mi = new JMenuItem("Get me some");
mi.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
SystemTray.getSystemTray().remove(ti);
System.exit(0);
}
});
popup.add(mi);
ti.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent e) {
if (e.getButton() == MouseEvent.BUTTON1 && e.getClickCount() == 1) {
Rectangle bounds = getSafeScreenBounds(e.getPoint());
Point point = e.getPoint();
int x = point.x;
int y = point.y;
if (y < bounds.y) {
y = bounds.y;
} else if (y > bounds.y + bounds.height) {
y = bounds.y + bounds.height;
}
if (x < bounds.x) {
x = bounds.x;
} else if (x > bounds.x + bounds.width) {
x = bounds.x + bounds.width;
}
if (x + popup.getPreferredSize().width > bounds.x + bounds.width) {
x = (bounds.x + bounds.width) - popup.getPreferredSize().width;
}
if (y + popup.getPreferredSize().height > bounds.y + bounds.height) {
y = (bounds.y + bounds.height) - popup.getPreferredSize().height;
}
popup.setLocation(x, y);
popup.setVisible(true);
}
}
});
SystemTray.getSystemTray().add(ti);
} catch (Exception ex) {
ex.printStackTrace();
}
}
});
}
public static Rectangle getSafeScreenBounds(Point pos) {
Rectangle bounds = getScreenBoundsAt(pos);
Insets insets = getScreenInsetsAt(pos);
bounds.x += insets.left;
bounds.y += insets.top;
bounds.width -= (insets.left + insets.right);
bounds.height -= (insets.top + insets.bottom);
return bounds;
}
public static Insets getScreenInsetsAt(Point pos) {
GraphicsDevice gd = getGraphicsDeviceAt(pos);
Insets insets = null;
if (gd != null) {
insets = Toolkit.getDefaultToolkit().getScreenInsets(gd.getDefaultConfiguration());
}
return insets;
}
public static Rectangle getScreenBoundsAt(Point pos) {
GraphicsDevice gd = getGraphicsDeviceAt(pos);
Rectangle bounds = null;
if (gd != null) {
bounds = gd.getDefaultConfiguration().getBounds();
}
return bounds;
}
public static GraphicsDevice getGraphicsDeviceAt(Point pos) {
GraphicsDevice device = null;
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice lstGDs[] = ge.getScreenDevices();
ArrayList<GraphicsDevice> lstDevices = new ArrayList<GraphicsDevice>(lstGDs.length);
for (GraphicsDevice gd : lstGDs) {
GraphicsConfiguration gc = gd.getDefaultConfiguration();
Rectangle screenBounds = gc.getBounds();
if (screenBounds.contains(pos)) {
lstDevices.add(gd);
}
}
if (lstDevices.size() > 0) {
device = lstDevices.get(0);
} else {
device = ge.getDefaultScreenDevice();
}
return device;
}
}
What you're trying to do is apparently not possible:
You cannot show the PopupMenu with its show method since you need to specify a JComponent but your TrayIcon isn't one (weird enough though that TrayIcon still manages to do it, so apparently there is a way, don't ask me though..). So, as MadProgrammer suggested, you should try using JPopupMenu instead. Don't add it to your TrayIcon for that won't be possible, but display your JPopupMenu by adding a MouseListener to your TrayIcon. That should do the trick:
final TrayIcon tray = new TrayIcon( img, tooltip, null);
final JPopupMenu menu = new JPopupMenu();
... // your menu initialization.
tray.addMouseListener( new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent evt) {
menu.setLocation( evt.getPoint() );
menu.setVisible( true );
}
}
in my libgdx tiles 2D jump and run game I want to create Bodies every second at the positin of my cannons, but as far as I am, only one cannon shoots every second.
Can anyone help me how to fix this?
Heres where I create my cannons:
//create cannon bodies/fixtures
cannons = new Array<Cannon>();
for (MapObject object : map.getLayers().get(5).getObjects().getByType(RectangleMapObject.class)) {
recta = ((RectangleMapObject) object).getRectangle();
cannons.add(new Cannon(screen, recta.getX(), recta.getY()));
}
}
public float X() {
return recta.getX();
}
public float Y() {
return recta.getY();
}
Here I add canons( that works for every position) :
private Array<Bullet> bullets;
public Cannon(PlayScreen screen, float x, float y) {
super(screen, x, y);
setBounds(getX(), getY(), getWidth(), getHeight());
}
public Cannon() {
super();
}
#Override
protected void defineTrap() {
b2body = Body.addStatic(b2body, world, 0f, getX(), getY(), 32, x.CANNON_BIT, "cannon");
createBullet();
}
public void createBullet() {
bullets = new Array<Bullet>();
bullets.add(new Bullet(screen, getX(), getY()));
}
Here I add the first bullet(that waoks too for all cannons):
public Bullet(PlayScreen screen, float x, float y) {
super(screen, x, y);
setBounds(getX(), getY(), getWidth(), getHeight());
}
public Bullet() {
}
#Override
public void defineTrap() {
b2body = Body.addDynamic(b2body, world, 0f, getX(), getY(), 8, x.BULLET_BIT, "bullet");
b2body.setLinearVelocity(new Vector2(-1f, 0));
b2body.setGravityScale(0);
}
And here I want every cannon to shoot, but only one does (its my render mehtod):
if (TimeUtils.timeSinceNanos(startTime) > 1000000000) {
bullets = new Array<Bullet>();
bullets.add(new Bullet(this, creator.X(), creator.Y()));
startTime = TimeUtils.nanoTime();
}
I hope you can help me!
You should iterate through all cannons and call some method that can access the private field bullets, I called it addBullet(Screen, float, float). You might to need to do something with creator before addBullet() as I'm unsure what you are doing with it.
if (TimeUtils.timeSinceNanos(startTime) > 1000000000) {
for(int i = 0; i < Cannons.size; i++) {
Cannon cannon = cannons.get(i);
cannon.addBullet(this, creator.X(), creator.Y());
}
startTime = TimeUtils.nanoTime();
}
Then create the addBullet method in the Cannon class.
public void addBullet(Screen screen, float x, float y) {
bullets.add(new Bullet(screen, x, y));
}
As far as I can tell there is no reason to reinitialize the bullet array every time as you have been doing. Just use pop(); or removeIndex(index); to remove the array items that are no longer used. You could add some more methods to the Cannon class
public void removeLastBullet() {
bullets.pop();
}
public void removeBullet(int i) {
bullets.removeIndex(i);
}
What i want:
I want allow the user to drag and drop the actors he puts on the screen
1) An actor (32x32 pixel) can be put in a certain area defined by me (a centered rectangle 5x5, 32 pixel each cell)
2) The actors are snapped to an imaginary grid of the screen when added to the stage.
3) This snap to grid is needed also during the drag and drop
4) An actor can't be moved on another one
5) An actor must be rotated by 90 degrees when the user clicks on it
6) The actor can't be moved outside the bounds
What actually i get:
1) ok
2) ok
3) ok (with bugs)
4) not implemented yet
5) ok (with bugs)
6) not implemented yet
The bugs are:
1) The rotations is applied in any case. I don't want this behavior. I don't want to rotate an actor if the user is just doing drag and drop. (i know that this happens because i put this part of the code in the touchDown method)
2) This is hard to describe with my english, i'll try.
I put an actor and i can move it (when i say "move" i mean drag and drop).
I put a second actor and i can move it.
Now, if i try to move the first actor i put, the second one moves over the first (overlapping to it) and starts moving along with it!
Now the code:
Events in the GameStage
#Override
public boolean touchDown(int screenX, int screenY, int pointer, int button) {
translateScreenToWorldCoordinates(screenX, screenY);
// check if the user clicked or not in the center area
if(!centerArea.contains(touchPoint.x, touchPoint.y)) {
return true;
}
// rotation
Iterator<Square> squareIterator = squares.iterator();
while(squareIterator.hasNext()) {
Square nextSquare = squareIterator.next();
if(nextSquare.getBounds().contains(touchPoint.x, touchPoint.y)) {
nextSquare.rotate();
return true;
}
}
// add an Actor
touchPoint.set(touchPoint.x - Constants.SQUARE_SIZE / 2, touchPoint.y - Constants.SQUARE_SIZE / 2, 0f);
float snapX = Math.round((touchPoint.x / Constants.SQUARE_SIZE)) * Constants.SQUARE_SIZE;
float snapY = Math.round((touchPoint.y / Constants.SQUARE_SIZE)) * Constants.SQUARE_SIZE;
Square square = new Square(snapX, snapY);
squares.add(square);
addActor(square);
return true;
}
public boolean touchDragged(int screenX, int screenY, int pointer) {
Vector3 newTouchPoint = new Vector3(screenX, screenY, 0f);
getCamera().unproject(newTouchPoint.set(screenX, screenY, 0f));
Square next = null;
Iterator<Square> squareIterator = squares.listIterator();
while(squareIterator.hasNext()) {
next = squareIterator.next();
if(next.getBounds().contains(newTouchPoint.x, newTouchPoint.y)) {
next.setX(newTouchPoint.x - Constants.SQUARE_SIZE / 2);
next.setY(newTouchPoint.y - Constants.SQUARE_SIZE / 2);
continue;
}
}
newTouchPoint.set(newTouchPoint.x - Constants.SQUARE_SIZE / 2, newTouchPoint.y - Constants.SQUARE_SIZE / 2, 0f);
float snapX = Math.round((newTouchPoint.x / Constants.SQUARE_SIZE)) * Constants.SQUARE_SIZE;
float snapY = Math.round((newTouchPoint.y / Constants.SQUARE_SIZE)) * Constants.SQUARE_SIZE;
next.setX(snapX);
next.setY(snapY);
return true;
}
private void translateScreenToWorldCoordinates(int x, int y) {
getCamera().unproject(touchPoint.set(x, y, 0f));
}
Actor
public class Square extends GameActor {
private float rotation;
private ShapeRenderer shapeRenderer;
public Square(float x, float y) {
super(x, y);
shapeRenderer = new ShapeRenderer();
}
#Override
protected void initializeSprite() {
texture = new Texture(Gdx.files.internal(Constants.SQUARE_LOCATION));
}
#Override
public void act(float delta) {
super.act(delta);
}
#Override
protected void updateBounds() {
bounds.setPosition(x, y);
}
public void rotate() {
rotation -= 90;
if(rotation <= -360) {
rotation = 0;
}
setRotation(rotation);
}
public void setX(float x) {
this.x = x;
}
public void setY(float y) {
this.y = y;
}
#Override
public void draw(Batch batch, float parentAlpha) {
super.draw(batch, parentAlpha);
/*shapeRenderer.begin(ShapeRenderer.ShapeType.Line);
shapeRenderer.setColor(Color.RED);
shapeRenderer.rect(bounds.getX(), bounds.getY(), Constants.SQUARE_SIZE, Constants.SQUARE_SIZE);
shapeRenderer.end();*/
//batch.begin();
batch.draw(texture, x, y, texture.getWidth() / 2, texture.getHeight() / 2,
texture.getWidth(), texture.getHeight(), 1, 1, rotation, 0, 0, Constants.SQUARE_SIZE, Constants.SQUARE_SIZE, false, false);
}
}
I hope you can help me, i'm new to Libgdx, thank you.
UPDATE
I fixed the rotation bug moving its logic inside the touchUp method.
I want to perform drag and drop operation on these image.
How can i make it possible with the following code.
void storeLocation::changescene()
{
this->removeAllChildren();
//CCDirector::sharedDirector()->replaceScene(storeLocation::scene());
CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();
CCPoint origin = CCDirector::sharedDirector()->getVisibleOrigin();
//CCScene* scene=CCScene::create();
storeLocation *layer = storeLocation::create();
CCSprite *k=CCSprite::create("background.png");
this->addChild(k,0);
k->setPosition(ccp(visibleSize.width/2+ origin.x, visibleSize.height/2 + origin.y));
CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
"CloseNormal.png",
"CloseSelected.png",
this,
menu_selector(storeLocation::menuCloseCallback));
pCloseItem->setPosition(ccp(origin.x + visibleSize.width - pCloseItem->getContentSize().width ,
origin.y + pCloseItem->getContentSize().height/2));
pCloseItem->setScale(1.5);
// create menu, it's an autorelease object
CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);
pMenu->setPosition(CCPointZero);
this->addChild(pMenu, 1);
this->addChild(pMenu, 1);
this->setTouchEnabled(true);
int l=5;
int posx=0,posy=0;
int count=0,r,j=-1,i=0,flag=0;
int x=20;
int b[30],a[30];
while(count<=5)
{
srand(time(0));
r=rand()%x+1;
flag=checktag(b,r,j);
if(flag==1)
{
b[i]=r;
i++;
count++;
j++;
}
}
int t;
CCObject* jt=NULL;
CCARRAY_FOREACH(images, jt)
{
// CCSize winSize = CCDirector::sharedDirector()->getWinSize();
//float i=winSize.width;
CCSprite *image = dynamic_cast<CCSprite*>(jt);
t=image->getTag();
for(i=0;i<l;i++)
{
if(t==b[i])
{
this->addChild(image);
image->setPosition(ccp(100+posx,100));
posx=posx+120;
}}}
To drag and drop images from one point to another on screen you have to use touch delegate methods
bool ccTouchBegan(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);
void ccTouchMoved(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);
void ccTouchEnded(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);
Detect image on user touch in ccTouchBegan method, for this you can store all image objects in a array and check if touch is in rect of any image by using for loop.
To move the image with user touch change position of touched image(save touched image object in a global object) in ccTouchMoved.
And in ccTouchEnded method do whatever you want to do on droping image.
the easiest way to catch drag and drop events is by implementing the onTouchBegan and onTouchMoved and onTouchEnded methods like this:
auto listener = EventListenerTouchOneByOne::create();
listener->onTouchBegan = CC_CALLBACK_2(HelloWorld::onTouchBegan, this);
listener->onTouchMoved = CC_CALLBACK_2(HelloWorld::onTouchMoved, this);
listener->onTouchEnded = CC_CALLBACK_2(HelloWorld::onTouchEnded, this);
_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, sprite);
bool HelloWorld::onTouchBegan(Touch* touch, cocos2d::Event* event){
// this method is not needed but in order to implement the onTouchMoved you have to first implement onTouchBegan then the onTouchMoved
return true;
}
void HelloWorld::onTouchMoved(Touch* touch, cocos2d::Event* event){
if (sprite->getBoundingBox().containsPoint(touch->getLocation()))
{
sprite->setPosition(sprite->getPosition() + touch->getDelta());
}
}
void HelloWorld::onTouchEnded(Touch* touch, cocos2d::Event* event){
if (sprite->getBoundingBox().containsPoint(touch->getLocation()))
{
log("Sprite Drop Event");
}
}