frequency wrote...
Should i add as setimage of the classes the pressed and unpressed.png?
frequency wrote ...
2018/1/31
How can i make an image change when i press a button
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You should add the Circle class above (with the change on line 22) and delete both the Pressed and Unpressed classes from the project. No image needs to be applied to the Circle class (the code within the class takes care of its image).
Where you say "GAME WORLD" which world should i enter?
import greenfoot.*;
public class Circle extends Actor
{
GreenfootImage upImage = new GreenfootImage("unpressed.png"); // adjust filename as needed
GreenfootImage downImage = new GreenfootImage("pressed.png"); // adjust filename as needed
boolean spaceDown;
public Circle()
{
setImage("unpressed.png");
}
public void act()
{
if (spaceDown != Greenfoot.isKeyDown("space")) // was there a change in state of key
{
spaceDown = !spaceDown; // save new state
if (spaceDown) // is down the new state
{
setImage(downImage);
((MyWorld)getWorld()).bumpScore(); // pseudo-code to have world increment score counter; adjust as needed
}
else setImage(upImage);
}
}
}Since you have 3 possible worlds the circle can be in, you will need to replace line 22 with the following:
if (getWorld() instanceof World30) ((World30)getWorld()).bumpScore(); else if (getWorld() instanceof World60) ((World60)getWorld()).bumpScore(); else if (getWorld() instanceof World90) ((World90)getWorld()).bumpScore();
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