Hello everybody,
how can I display the mouse cursor in Greenfoot? I saw it already, for example in Nightmare Emergence, but i wasn't able to find that method. Thanks for help.
Kartoffelbrot wrote ...
2013/4/3
How to display the cursor?
Refer to this discussion post.
To change the cursor image you first need this imports:
To change the cursor image you can use this method:
Maybe you have to change the point (new Point(0, 0), ...) because using this point the cursor point will be at the top left of the image.
If you want it somewhere else you have to use anther point. E.g. : new Point(cursorImage().getWidth()/2, cursorImage.getHeight()/2) if you want the point to be in the middle of the image.
import greenfoot.core.WorldHandler; import java.awt.Dimension; import java.awt.Cursor; import java.awt.Image; import java.awt.Point; import javax.swing.*; import java.awt.Toolkit;
public void changeCursorImage(GreenfootImage cursorImage) {
JPanel panel = WorldHandler.getInstance().getWorldCanvas();
Cursor cursor = Toolkit.getDefaultToolkit().createCustomCursor(cursorImage.getAwtImage(), new Point(0, 0), "Cursor");
panel.setCursor(cursor);
}Thank you both!
Implemented it now. Had first a few problems with the GreenfootImage, because i don't know these methodes very well, but now it works fine! :)
And how can I redo that, so that the mouse is back? Can i save the normal image of the cursor in a Greenfoot image variable?
You can save the original Cursor in a field with:
or, you can get the system default cursor with:
which can be used directly in the setting of the cursor:
Cursor defaultCursor = panel.getCursor();
Cursor defaultCursor = Cursor.getDefaultCursor();
panel.setCursor(Cursor.getDefaultCursor());
Thank you.
Please refer to the Cursor class documentation for extra info you may want to know about.
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