/**
* @param group an empty group to be the parent
* @return the group with the current selection
*/
public Group createGroup(Group group) {
// New group has the same transformation as this
group.setBounds(getX(), getY(), getWidth(), getHeight());
group.setOrigin(getOriginX(), getOriginY());
group.setRotation(getRotation());
group.setScale(getScaleX(), getScaleY());
// Each children in the group must be contained by the new group
Array<Actor> children = getChildren();
children.sort(
new Comparator<Actor>() {
@Override
public int compare(Actor actor, Actor actor2) {
return ((SelectionGhost) actor).getRepresentedActor().getZIndex()
- ((SelectionGhost) actor2).getRepresentedActor().getZIndex();
}
});
for (Actor actor : children) {
SelectionGhost ghost = (SelectionGhost) actor;
Actor representedActor = ghost.getRepresentedActor();
representedActor.setPosition(ghost.getX(), ghost.getY());
representedActor.setRotation(ghost.getRotation());
representedActor.setScale(ghost.getScaleX(), ghost.getScaleY());
group.addActor(representedActor);
}
return group;
}
/** Adjusts the position and size of the given group to its children */
public static void adjustGroup(Actor root) {
if (!(root instanceof Group)) {
return;
}
Group group = (Group) root;
if (group.getChildren().size == 0) {
return;
}
Vector2 origin = Pools.obtain(Vector2.class);
Vector2 size = Pools.obtain(Vector2.class);
Vector2 tmp3 = Pools.obtain(Vector2.class);
Vector2 tmp4 = Pools.obtain(Vector2.class);
calculateBounds(group.getChildren(), origin, size);
/*
* minX and minY are the new origin (new 0, 0), so everything inside the
* group must be translated that much.
*/
for (Actor actor : group.getChildren()) {
actor.setPosition(actor.getX() - origin.x, actor.getY() - origin.y);
}
/*
* Now, we calculate the current origin (0, 0) and the new origin (minX,
* minY), and group is translated by that difference.
*/
group.localToParentCoordinates(tmp3.set(0, 0));
group.localToParentCoordinates(tmp4.set(origin.x, origin.y));
tmp4.sub(tmp3);
group.setBounds(group.getX() + tmp4.x, group.getY() + tmp4.y, size.x, size.y);
group.setOrigin(size.x / 2.0f, size.y / 2.0f);
Pools.free(origin);
Pools.free(size);
Pools.free(tmp3);
Pools.free(tmp4);
}
@Override
public void create() {
texture = new Texture(Gdx.files.internal("data/badlogicsmall.jpg"));
texture.setFilter(TextureFilter.Linear, TextureFilter.Linear);
font = new BitmapFont(Gdx.files.internal("data/arial-15.fnt"), false);
stage = new Stage();
float loc = (NUM_SPRITES * (32 + SPACING) - SPACING) / 2;
for (int i = 0; i < NUM_GROUPS; i++) {
Group group = new Group();
group.setX((float) Math.random() * (stage.getWidth() - NUM_SPRITES * (32 + SPACING)));
group.setY((float) Math.random() * (stage.getHeight() - NUM_SPRITES * (32 + SPACING)));
group.setOrigin(loc, loc);
fillGroup(group, texture);
stage.addActor(group);
}
uiTexture = new Texture(Gdx.files.internal("data/ui.png"));
uiTexture.setFilter(TextureFilter.Linear, TextureFilter.Linear);
ui = new Stage();
Image blend = new Image(new TextureRegion(uiTexture, 0, 0, 64, 32));
blend.setAlign(Align.center);
blend.setScaling(Scaling.none);
blend.addListener(
new InputListener() {
public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {
if (stage.getSpriteBatch().isBlendingEnabled())
stage.getSpriteBatch().disableBlending();
else stage.getSpriteBatch().enableBlending();
return true;
}
});
blend.setY(ui.getHeight() - 64);
Image rotate = new Image(new TextureRegion(uiTexture, 64, 0, 64, 32));
rotate.setAlign(Align.center);
rotate.setScaling(Scaling.none);
rotate.addListener(
new InputListener() {
public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {
rotateSprites = !rotateSprites;
return true;
}
});
rotate.setPosition(64, blend.getY());
Image scale = new Image(new TextureRegion(uiTexture, 64, 32, 64, 32));
scale.setAlign(Align.center);
scale.setScaling(Scaling.none);
scale.addListener(
new InputListener() {
public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {
scaleSprites = !scaleSprites;
return true;
}
});
scale.setPosition(128, blend.getY());
ui.addActor(blend);
ui.addActor(rotate);
ui.addActor(scale);
fps = new Label("fps: 0", new Label.LabelStyle(font, Color.WHITE));
fps.setPosition(10, 30);
fps.setColor(0, 1, 0, 1);
ui.addActor(fps);
renderer = new ShapeRenderer();
Gdx.input.setInputProcessor(this);
}