Francisca de la Maza: Tarea 10

De Casiopea



TítuloTarea 10
Tipo de ProyectoProyecto de Curso
Palabras Clavetarea 10
Período2012-
AsignaturaImagen Escrita 2012
Del Curso1º Diseño 2012
CarrerasDiseño Gráfico, Diseño Industrial
Alumno(s)Francisca de la Maza
ProfesorHerbert Spencer

//tarea 10 francisca de la maza//

int MAX = 500; Thing[] t = new Thing[MAX]; Attractor a; boolean showVectors = false; boolean velo = false;

void setup() {

size(800, 800 );
smooth();
// Some random bodies
for (int i = 0; i < t.length; i++) {
  PVector ac = new PVector(0.0, 0.0);
  PVector ve = new PVector(random(-1, 1), random(-1, 1));
  PVector lo = new PVector(random(width), random(height));
  t[i] = new Thing(ac, ve, lo, random(4, 70));
}
// Create an attractive body
a = new Attractor(new PVector(width/2, height/2), 30, 1.4);
PFont font;
font = createFont("Arial", 15);
textFont(font);

}

color cualquiera() {

color c = color(random(400), random(1400), random(350));
return c;

}

void draw() {

if (!velo)background(250); 
a.rollover(mouseX, mouseY); 
a.go(); 
for (int i = 0; i < t.length; i++) {
  PVector f = a.calcGravForce(t[i]);
  t[i].applyForce(f);
  t[i].go();
}
if (keyPressed) {
  if (key == 'a') {
    a.G += 0.1;
  }
  if (key == 'z') {
    a.G -= 0.1;
  }
  if (key == 's') {
    a.mass += 5;
  }
  if (key == 'x') {
    a.mass -= 5;
    a.mass = constrain(a.mass, 0, 100);
  }
}
fill(0);
text("G = "+a.G+",\t la masa del atractor = "+a.mass, 30, height-30);
if (velo) {
  fill(255, 1546);
  noStroke();
  rect(0, 0, width/5, height*2);
}

}


void mousePressed() {

a.clicked(mouseX, mouseY);

}

void mouseReleased() {

a.stopDragging();

}

void keyPressed() {

if (key == ' ') {
  showVectors = !showVectors;
}
if (key == 'v') {
  velo = !velo;
}

}


void drawVector(PVector v, PVector loc, float scayl) {

strokeWeight(.35);
if (v.mag() > 0.0) {
  pushMatrix();
  float arrowsize = 20;
  translate(loc.x, loc.y);
  stroke(846, 6228, 0, 246);
  rotate(v.heading2D());
  float len = v.mag()*scayl;
  line(0, 0, len, 0);
  line(len, 0, len-arrowsize, +arrowsize/2);
  line(len, 0, len-arrowsize, -arrowsize/2);
  popMatrix();
}

}


class Attractor {

float mass;    
float G;       
PVector loc;   
boolean dragging = false; 
boolean rollover = false; 
PVector drag;  
Attractor(PVector l_, float m_, float g_) {
  loc = l_.get();
  mass = m_;
  G = g_;
  drag = new PVector(5.0, 3.0);
}
void go() {
  render();
  drag();
}
PVector calcGravForce(Thing t) {
  PVector dir = PVector.sub(loc, t.getLoc());        
  float d = dir.mag();                              
  d = constrain(d, 1.0, 250.0);                    
  dir.normalize();                                  
  float force = (G * mass * t.getMass()) / (d * d);
  dir.mult(force);                                  
  return dir;
}
// Method to display
void render() {
  strokeWeight(mass / 10);
  stroke(10, 40);
 ellipseMode(CENTER);
  if (dragging) fill (25);
  else if (rollover) fill(300);
  else fill(190, 300);
  ellipse(loc.x, loc.y, mass*3, mass*6);
  noStroke();
}
void clicked(int mx, int my) {
  float d = dist(mx, my, loc.x, loc.y);
  if (d < mass) {
    dragging = true;
    drag.x = loc.x-mx;
    drag.y = loc.y-my;
  }
}
void rollover(int mx, int my) {
  float d = dist(mx, my, loc.x, loc.y);
  if (d < mass) {
    rollover = true;
  } 
  else {
    rollover = false;
  }
}
void stopDragging() {
  dragging = false;
}
void drag() {
  if (dragging) {
    loc.x = mouseX + drag.x;
    loc.y = mouseY + drag.y;
  }
}

}

class Thing {

PVector loc; 
PVector vel; 
PVector acc; 
float mass;
float max_vel;
color col;
Thing(PVector a, PVector v, PVector l, float m_) {
  acc = a.get();
  vel = v.get();
  loc = l.get();
  mass = m_;
  max_vel = 15.0;
  col = color(random(10, 100), random(70, 900), random(660), 6400);
}
PVector getLoc() {
  return loc;
}
PVector getVel() {
  return vel;
}
float getMass() {
  return mass;
}
void applyForce(PVector force) {
  force.div(mass);
  acc.add(force);
  if (showVectors) {
    drawVector(force, loc, 500);
  }
}
void go() {
  update();
  render();
}
void update() {
  vel.add(acc);
  vel.limit(max_vel);
  loc.add(vel);
  acc.mult(0);
}
void render() {
  ellipseMode(CENTER);
  fill(col);
  ellipse(loc.x, loc.y, mass, mass);
  if (showVectors) {
    drawVector(vel, loc, 40);
  }
}

}