So I want an action to occur when my mouse is over a certain location ,the on button.
http://i40.tinypic.com/2ugnexk.jpg
Yedya wrote ...
2013/11/23
Mouse click over certain area?
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Something like this: (where the bounds are ints defining the area of interest)
MouseInfo mouse = Greenfoot.getMouseInfo();
if (Greenfoot.mouseClicked(null))
{
if (mouse.getX() >= leftBound &&
mouse.getX() <= rightBound &&
mouse.getY() >= topBound &&
mouse.getY() <= bottomBound)
{
// Do something
}
}Of course, if the area of interest is defined via an Actor's image, then you can simply just use something like this:
(If the context is right considering the draw order of Actors)
if (Greenfoot.mouseClicked(anActor))
{
// Do something
}thanks,but now the image is appearing in a different location.It's because Im changing the image from a different class.
Please show the method in which you are changing the image of that actor from a different class.
public void act()
{
if(Greenfoot.mouseClicked(this))
{
play();
change();
}
}
public void play()
{
Greenfoot.playSound("G#2.mp3");
}
public void change ()
{
setImage("OFFFFS.png");
{
setImage("RLargeHall.png");
}
}
}
I do not see any place in the code given where you are referring to any other object. I presume from what you previously stated that you are trying to change the image of another object in the 'change' method, but it does not refer to any other object. You need to be more clear as to what you want (a detailed explanation of what you are trying to accomplish).
public void change ()
{
setImage("OFFFFS.png");
{
setImage("RLargeHall.png");
}
} The only image you are going to change with the code above is the image of the actor that was clicked on. You need a reference to the other actor whose image you wish to change before you can change that one.
One would need to know the class of that actor and which object of that class you wish to change the image of.
Ok so instead of changing the image,i need to change the actor? Can you give me an example of this code?
No. You need the actor to get the image of that actor so you can change its image ('actorReferenceName.setImage("imageFileName.png")').
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