Processing Forum

Screen name:
yasser.hassan.73744

yasser.hassan.73744's Profile

1 Posts

0 Responses

0 Followers

Activity Trend

Last 30 days

Loading Chart...

Show:

Expanded view
List view

plethora flock 2d change boundary

[1 Reply]
- 07-Jun-2013 05:44 AM
- Forum: Contributed Library Questions
Hello world,

I am new to processing and I hope someone out there can teach me a thing or two about the 'plethora flock2d' example.

I put the code underneath. Now I want to do 2 things

1. I would like to change the boundaries

so where in the code can I do that? I tried changing all the possible variables, did not succeed

2. I would also like to add straight lines inside the boundary box 'walls' as extra boundaries, can I do that? And how?

Thanks very much in advance,

Yasser

/**

* Simple call for agent population with a flocking behavior based on Craig Reynolds

* more info at www.plethora-project.com

* requires toxiclibs and peasycam

*/

/*

* Copyright (c) 2011 Jose Sanchez

*

* This library is free software; you can redistribute it and/or

* modify it under the terms of the GNU Lesser General Public

* License as published by the Free Software Foundation; either

* version 2.1 of the License, or (at your option) any later version.

*

* http://creativecommons.org/licenses/LGPL/2.1/

*

* This library is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

* Lesser General Public License for more details.

*

* You should have received a copy of the GNU Lesser General Public

* License along with this library; if not, write to the Free Software

* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

*/

import processing.opengl.*;

import plethora.core.*;

import toxi.geom.*;

import peasy.*;

ArrayList <Ple_Agent> boids;

//using peasycam

PeasyCam cam;

float DIMX = 600;

float DIMY = 600;

float DIMZ = 600;

int pop = 800;

void setup() {

size(1200, 600, OPENGL);

smooth();

cam = new PeasyCam(this, 80);

//initialize the arrayList

boids = new ArrayList <Ple_Agent>();

for (int i = 0; i < pop; i++) {



//set the initial location as 0,0,0

Vec3D v = new Vec3D ();

//create the plethora agents!

Ple_Agent pa = new Ple_Agent(this, v);

//generate a random initial velocity

Vec3D initialVelocity = new Vec3D (random(-1, 1), random(-1, 1), random(-1, 1));

//set some initial values:

//initial velocity

pa.setVelocity(initialVelocity);

//initialize the tail

pa.initTail(5);



//add the agents to the list

boids.add(pa);

}

}

void draw() {

background(205);



stroke(0,90);

strokeWeight(1);

noFill();

rect(-DIMX/2,-DIMY/2,DIMX,DIMY);

for (Ple_Agent pa : boids) {

//call flock, cohesion, alignment, separation.

//first define the population, then the distances for cohesion,alignment,

//separation and then the scales in same order. Try playing with the scales and distances!

pa.flock(boids, 80, 40, 10 , 2, 0.5, 10);



//define the boundries of the space as bounce

pa.bounceSpace(DIMX/2, DIMY/2, DIMY/2);



//update the tail info every frame (1)

pa.updateTail(1);

//display the tail interpolating 2 sets of values:

//R,G,B,ALPHA,SIZE - R,G,B,ALPHA,SIZE

pa.displayTailPoints(0, 0, 0, 0, 1, 0, 0, 0, 255, 2);

//set the max speed of movement:

pa.setMaxspeed(3);

//pa.setMaxforce(0.05);



//update agents location based on past calculations

pa.update();



//make 2D in some Z plane

pa.flatten(0);

//Display the location of the agent with a point

strokeWeight(2);

stroke(0);

pa.displayPoint();

//Display the direction of the agent with a line

strokeWeight(1);

stroke(100,90);

pa.displayDir(pa.vel.magnitude()*3);

}

}

«Prev
Next »