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Greenfoot back
newbieGreenfoot
newbieGreenfoot wrote ...

2012/6/27

Need Help with adding dogs randomly in drawDogs

newbieGreenfoot newbieGreenfoot

2012/6/27

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Here are a few codes I have typed up in a failed attempt to Design the default DogWorld to contain three Dog objects at random locations and one player-controllable Dog object precisely at the center of the DogWorld. The IDE is Greenfoot. public class DogWorld extends World { /** * Constructor for objects of class DogWorld. * */ public DogWorld() { // Create a new world with 600x400 cells with a cell size of 1x1 pixels. super(600, 400, 1); randomDogs(); } /** * This method add a random dog */ public void randomDogs() if ( Greenfoot.getRandomNumber(10) ) { addObject ( new Dog() 100, 67 ); } } public class Dog extends Actor { private int lastObject = 0; public void act() { if (int lastObject i = Greenfoot.getRandomNumber;(4)+ 1; { while (i== lastObjectNumber) i = Greenfoot.getRandomNumber(4) + 1; lastObject = i; if (i==1) { } I also tried to extrapolate from: http://www.greenfoot.org/topics/713 It is not exactly the same thing, but the Greenfoot textbook is not clear on how to apply the instance variable.
newbieGreenfoot newbieGreenfoot

2012/6/27

#
Some of the error codes I am receiving are: illegal start type at: if (int lastObject..) and ' expected.
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