Processing 1.0 - Processing Discourse - What does this script do?

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What does this script do? (Read 666 times)

Naieve

What does this script do?
May 9^th, 2010, 12:25pm

ArrayList AntList;
myAnt B;
int maxAnts = 100;

void setup()
{
size(400,400);
stroke(255);
AntList = new ArrayList();

for (int i = 0;i < maxAnts; i++)

AntList.add (new myAnt (random(0,width), random(0,height) )); }

void draw()
{
background(0);
for (int i = 0; i < AntList. size(); i++)
{
B = (myAnt) AntList.get(i);

B.Animate();
} }

class myAnt
{
PVector pos;
myAnt (float x,float y){pos=new PVector(x,y); }

void Draw()
{
point(pos.x,pos.y); }
}

Cedric

Re: What does this script do?
Reply #1 - May 9^th, 2010, 1:06pm

This sketch seems to draw 100 random ants on the screen and animate them. Animate is missing though.
But what might be new to you is the Arraylist.

Find out more about arrayLists here: http://processing.org/reference/ArrayList.html

one of the differences is that an arraylist can be resized dynamically. This can be really useful if you dont know the amount of ants you are going to create. But it is slower than an array.
As your number of ants is stored in maxAnts already , an array would be probably the better choise.

You can read more about the difference of Arrays and Arraylists here : http://processing.org/discourse/yabb2/num_1230887778.html

twitter.com/CedricKiefer

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