hello! how do you add an actor in the world every 10 seconds? thank you!
rachpaguia@gmail.com wrote ...
2017/3/16
ADDING ACTORS
rachpaguia@gmail.com wrote...
hello! how do you add an actor in the world every 10 seconds? thank you!private int spawnTimer;
private void checkForSpawning() // call from act method
{
spawnTimer = (spawnTimer+1)%600; // repeat every 10 seconds (about)
if (spawnTimer == 0) // at each timer reset
{
// code to add actor goes here
}
}Thank you! How do you know what second corresponds to the percentage? I'm planning to add other actors too for every 3 and 5 seconds. I also want the added actors to be added at a certain place. Will this code work?
addObject(new A(), 150, Greenfoot.getRandomNumber(1));
All in all, my code looks like this:
private int spawnTimer;
private void checkForSpawning() // call from act method
{
spawnTimer = (spawnTimer+1)%600; // repeat every 10 seconds (about)
if (spawnTimer == 0) // at each timer reset
{
addObject(new A(), 150, Greenfoot.getRandomNumber(1));
}
}
}danpost wrote...
private void checkForSpawning() // call from act method
You need this:
public void act()
{
checkForSpawning();
}rachpaguia@gmail.com wrote...
How do you know what second corresponds to the percentage? I'm planning to add other actors too for every 3 and 5 seconds. I also want the added actors to be added at a certain place. Will this code work?
Well, 'Greenfoot.getRandomNumber(1)' is always zero, '0'. You could simply replace the one with the other.addObject(new A(), 150, Greenfoot.getRandomNumber(1));
OK, so will my actor fall automatically, and add an object every 10 seconds with this code in my actor class
and this in my world class?
public void act()
{
checkForSpawning();
{
setLocation (getX(), getY()+7);
Greenfoot.setSpeed(+30);// to move
if (Greenfoot.isKeyDown("a"))
{
getWorld().removeObject(this); // removing A actor on 'a' press
Greenfoot.playSound("poppy.wav");// playing 'pop' when A actor is removed
}
}
}
} private int spawnTimer;
private void checkForSpawning() // call from act method
{
spawnTimer = (spawnTimer+1)%600; // repeat every 10 seconds (about)
if (spawnTimer == 0) // at each timer reset
{
addObject(new A(), 150, Greenfoot.getRandomNumber(1));
}
}
}rachpaguia@gmail.com wrote...
OK, so will my actor fall automatically, and add an object every 10 seconds with this code in my actor classAlright, here is my code now. Is it correct?
/**
* Constructor for objects of class bg.
*
*/
public bg()
{
super(600, 400, 1);
setBackground("Final ICT BG.png");
GreenfootImage bg = new GreenfootImage("Final ICT BG.png");
bg.scale(getWidth() +35, getHeight() +30);
setBackground(bg);
}
private int spawnTimer;
public void act()
{ checkForSpawning();
private void checkForSpawning()
}// call from act method
{
spawnTimer = (spawnTimer+1)%600; // repeat every 10 seconds (about)
if (spawnTimer == 0) // at each timer reset
{
addObject(new A(), 150, Greenfoot.getRandomNumber(1));
}
}
}this is in my world code
rachpaguia@gmail.com wrote...
this is in my world codei suck at this i'm sorry, thank you so much. i'm sorry for giving you a headache
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