I am developing game using LibGDX . I want to create beautiful menu and to scale buttons when they are pressed but not in this way , when it is pressed scale it 1.5f , I want to scale it with animation . I am using imagebuttons .
2 Answers
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Since you are using Actors you can simply give the actor an Action. For scaling you could use this method:
myActor.addAction(Actions.scaleTo(scaleX, scaleY, duration); Then when the user stops pressing the button you can cancel the current action and give the actor a new one that scales back down to the original size.
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You could change the scale by a factor n each time in the render loop when the button is pressed.
Initialisation of your ImageButton:
button = new ImageButton(Assets.button_style); button.addListener(new InputListener(){ public boolean touchDown (InputEvent event, float x, float y, int pointer, int button) { // enable scaling when button is pressed scale = true; return true; } public void touchUp (InputEvent event, float x, float y, int pointer, int button) { button.setChecked(false); // disable scaling when button is released scale = false; } public void exit(InputEvent event, float x, float y, int pointer, Actor toActor) { // disable scaling when button is exited with mouse scale = false; } }); Render Loop:
if(scale) { // set width and height (add n to current size) button.setWidth(button.getWidth() + n); button.setHeight(button.getHeight() + n); // re-adjust position button.setPosition(button.getX() - n/2, button.getY() - n/2); } Hope that helps. Limitations are that your animation has to be linear, if you want another kind of Interpolation you should read something about Interpolation.
