particle.cpp

#include "Particle.h"

// constructor function - executed directly!
Particle::Particle() {
	velocity.set(1,2);
	position.set(0,0);
	mass = ofRandom(0.2,10);
	forces.set(0.4,0.1);
}

void Particle::draw() {
	// forces calculations
	ofVec2f affect = forces / mass;	
	velocity = velocity + affect;
	position = position + velocity;	
	forces.set(0,0);
	
	// drawing
	ofCircle(position.x,position.y,mass);
	
}

void Particle::addForce(ofVec2f force) {
	forces = forces + force;
}

void Particle::setPosition(int x, int y) {
	position.set(x,y);
	velocity.set(0,0);
}