import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
* Write a description of class MyWorld here.
*
* @author (your name)
* @version (a version number or a date)
*/
public class MyWorld extends World
{
/**
* Constructor for objects of class MyWorld.
*
*/
public MyWorld()
{
// Create a new world with 600x400 cells with a cell size of 1x1 pixels.
super(800, 400, 1);
getBackground().setColor(Color.BLACK);
drawBranch(200, 390, 100, -90, -10);
drawBranch(400, 390, 100, -90, 0);
drawBranch(600, 390, 100, -90, +10);
}
public void drawBranch(int x, int y, int length, int degree, int angin){
if (length <= 20 && Greenfoot.getRandomNumber(100) < 25){
getBackground().setColor(Color.RED);
getBackground().fillOval(x,y,3,3);
}
if(length <=15){
return;
}
int x2 = x + (int) (Math.cos(Math.toRadians(degree)) * length);
int y2 = y + (int) (Math.sin(Math.toRadians(degree)) * length);
int random = Greenfoot.getRandomNumber(100);
if (length > 60){
getBackground().setColor(Color.BLACK);
} else if (length > 30){
getBackground().setColor(Color.BLUE);
} else {
getBackground().setColor(Color.GREEN);
}
getBackground().drawLine(x,y,x2,y2);
if (random<25){
drawBranch(x2,y2,(int) (length*0.75), degree+7+angin, angin);
drawBranch(x2,y2,(int) (length*0.75), degree-7+angin, angin);
} else if (random<50){
drawBranch(x2,y2,(int) (length*0.75), degree+angin, angin);
}
drawBranch(x2,y2,(int) (length*0.75), degree+15+angin, angin);
drawBranch(x2,y2,(int) (length*0.75), degree-15+angin, angin);
}
}
