How can i add a text to a world, which changes when i press a specific button (for example the space button)?
Example:
Text shown: Hello World
(I press space)
Text shown: Goodby World
Jhoffi wrote ...
2021/6/25
Text in Greenfoot?
in an actor :
in a world :
if(Greenfoot.isKeyDown("space"))
getWorld().showText("Goodbye World", 100, 100);
else
getWorld().showText("Hello World", 100, 100);
//put any number you want instead of 100if(Greenfoot.isKeyDown("space"))
showText("Goodbye World", 100, 100);
else
showText("Hello World", 100, 100);
//put any number you want instead of 100but know I have to hold space, and how can I do that with more than 2 text´s ( If i wan´t like "hi world" as a text, too.
if you just want to hold space once, do this :
I'm still not sure what you meant by "with more than 2 texts". Please explain with more details
//outside of a method, just in your class
boolean hasPressedSpace = false;
//then, in a method
if(Greenfoot.isKeyDown("space"))
hasPressedSpace = true;
if(hasPressedSpace)
getWorld().showText("Goodbye World", 100, 100);
else
getWorld().showText("Hello World", 100, 100);
Jhoffi wrote...
but know I have to hold space, and how can I do that with more than 2 text´s ( If i wan´t like "hi world" as a text, too.// outside
String[] greeting = { "Hi", "Hello" };
// in world constructor
showText(greeting[Greenfoot.getRandomNumber(2)]+" World", 100, 100);
// in act
if ("space".equals(Greenfoot.getKey()) showText("Goodbye World", 100, 100);You could also do it this way:
// outside
String[] salutation = { "Hi", "Hello", "Goodbye" };
// in constructor
salute(Greenfoot.getRandomNumber(2));
// in act
if ("space".equals(Greenfoot.getKey()) salute(2);
// added method
private void salute(int index)
{
showText(salutation[index]+" World", 100, 100);
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