1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | public class Leaf extends Actor{ /* Fields Go Here */ public static int numLeaves; int timer; int dx; boolean fallingRight; /* This is a Constructor */ public Leaf() { switch( Greenfoot.getRandomNumber(3) ) { case 0: setImage("Leaf1.png"); break; case 1: setImage("Leaf2.png"); break; case 2: setImage("Leaf3.png"); break; } setRotation((int)Math.random()*360); timer =(int)(Math.random()*900)+100; if ((int)(Math.random()*5)>=3) { fallingRight=true; } else if ((int)(Math.random()*5)<=3) { } numLeaves++; } public void act() { timer--; if (timer==0 & timer==-1) { setLocation (getX()+dx/2,getY()+5-Math.abs(dx)/4); if(fallingRight == true) { dx++; if (dx > 20) { fallingRight = false; } } else if(fallingRight == false) { dx--; if (dx < -20) { fallingRight = true; } } if (getY() > 600) { numLeaves--; getWorld().removeObject(this); } } } public static int getNumLeaves() { return numLeaves; } public static void reset() { numLeaves = 0; } } |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | public class Tree extends World{ public Tree() { super(1000, 750, 1); Leaf.reset(); } public void addLeaves( int amount ) { for(int i=0;0 < amount; i++) { int x = (int)(Math.random()*800)+100; int y = (int)(Math.random()*400); Leaf leaves = new Leaf(); addObject (leaves,x,y); } } public void increaseLeavesTo( int amount ) { while (Leaf.numLeaves < amount) { int x = (int)(Math.random()*800)+100; int y = (int)(Math.random()*400); Leaf leaves = new Leaf(); addObject (leaves,x,y); } }} |
