Greenfoot

kyles247

2015/3/4

#

i have 7 actors and i only have this code plugged in for each actor they all move to the right at a certain speed that i have plugged in i need to figure out how to make them move at all different speeds to the right without a keypad just to click run and the take off across page at different speeds ... i know its the code getRandomNumber but how do i have to plug it in without an error? public void act() { { move(5); } }

kyles247

2015/3/4

#

Basically its suppose to be a race game to guess who will win

LordLuhar

2015/3/4

#

Are you trying to have a random speed set after it starts, or a random speed each act sequence?

LordLuhar

2015/3/4

#

This code will get a random speed and set it for the rest of the time

int x = Greenfoot.getRandomNumber(10);
public void act()
{
{
            move(x);
 }
}

This will set it random each act sequences

public void act
{
{
            move(Greenfoot.getRandomNumber(10));// You can insert any number there, i just chose ten
 }
}

kyles247

2015/3/4

#

sorry im new to this so basically what i have is 7 race cars in the actor class. Racecar1 Racecar2 ext.. For each car i have this code put in so they race across the page to the right. public void act() { { move(5); } } each one has a different speed 2, 8 ext like this one is speed 5. When i reset my game it has all the cars already added to the world in different spots lined up ready to race. Im trying to figure out what code i can use to add to the Racecars so a different car wins everytime you reset the game. I know i can just use one code for every car so it picks a random speed each time that they will go but not sure

kyles247

2015/3/4

#

Thanks alot that exactly what i needed

LordLuhar

2015/3/4

#

Glad to have helped

kyles247

2015/3/4

#

Do you also know how i could possible set a trap in the world randomly so if the car hits the spot it will stop?

kyles247

2015/3/4

#

or if they hit the spot it will shoot them in a different direction?

LordLuhar

2015/3/4

#

What you'd have to do is create an object that would spawn in the world and have green foot check fora a collision, and based off of that, alter the path Put this code in your mover, and randomly spawn in objects, i think this should work

Actor coll = getOneIntersectingObject(//put other class here//.class);
if(coll != null)
        
        {
           turn(Greenfoot.getRandomNumber(360));
        }

So if your trap class was named trap, the first line should read Actor coll = getOneIntersectingObject(Trap.class);

LordLuhar

2015/3/4

#

If you want to randomly spawn the traps, put this in your world class

addObject( new Trap(), Greenfoot.getRandomNumber(//put width here//),Greenfoot.getRandomNumber(//put height here//));

kyles247

2015/3/4

#

Ok thanks i will try to also add to this code. Thanks for all the help

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need help figuring out how to move my actor at a get random speed