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---
layout: default
---
<h3>Objects</h3>
<p>by hbarragan
Move the cursor across the image to change the speed and positions
of the geometry. The class MRect defines a group of lines.</p>
<p><a href="http://processing.org/learning/basics/objects.html">Original Processing.org Example: Objects</a><br>
<div class="learning-demo"><script type="application/processing">
MRect r1, r2, r3, r4;
void setup()
{
size(200, 200);
fill(255, 204);
noStroke();
r1 = new MRect(1, 134.0, 0.532, 0.083*height, 10.0, 60.0);
r2 = new MRect(2, 44.0, 0.166, 0.332*height, 5.0, 50.0);
r3 = new MRect(2, 58.0, 0.332, 0.4482*height, 10.0, 35.0);
r4 = new MRect(1, 120.0, 0.0498, 0.913*height, 15.0, 60.0);
}
void draw()
{
background(0);
r1.display();
r2.display();
r3.display();
r4.display();
r1.move(mouseX-(width/2), mouseY+(height*0.1), 30);
r2.move((mouseX+(width*0.05))%width, mouseY+(height*0.025), 20);
r3.move(mouseX/4, mouseY-(height*0.025), 40);
r4.move(mouseX-(width/2), (height-mouseY), 50);
}
class MRect
{
int w; // single bar width
float xpos; // rect xposition
float h; // rect height
float ypos ; // rect yposition
float d; // single bar distance
float t; // number of bars
MRect(int iw, float ixp, float ih, float iyp, float id, float it) {
w = iw;
xpos = ixp;
h = ih;
ypos = iyp;
d = id;
t = it;
}
void move (float posX, float posY, float damping) {
float dif = ypos - posY;
if (abs(dif) > 1) {
ypos -= dif/damping;
}
dif = xpos - posX;
if (abs(dif) > 1) {
xpos -= dif/damping;
}
}
void display() {
for (int i=0; i<t; i++) {
rect(xpos+(i*(d+w)), ypos, w, height*h);
}
}
}
</script><canvas width="200" height="200"></canvas></div></p>
<div style="height:0px;width:0px;overflow:hidden;"></div>
<div class="code"><pre name="code" class="processing">// All Examples Written by Casey Reas</a> and Ben Fry</a>
// unless otherwise stated.
MRect r1, r2, r3, r4;
void setup()
{
size(200, 200);
fill(255, 204);
noStroke();
r1 = new MRect(1, 134.0, 0.532, 0.083*height, 10.0, 60.0);
r2 = new MRect(2, 44.0, 0.166, 0.332*height, 5.0, 50.0);
r3 = new MRect(2, 58.0, 0.332, 0.4482*height, 10.0, 35.0);
r4 = new MRect(1, 120.0, 0.0498, 0.913*height, 15.0, 60.0);
}
void draw()
{
background(0);
r1.display();
r2.display();
r3.display();
r4.display();
r1.move(mouseX-(width/2), mouseY+(height*0.1), 30);
r2.move((mouseX+(width*0.05))%width, mouseY+(height*0.025), 20);
r3.move(mouseX/4, mouseY-(height*0.025), 40);
r4.move(mouseX-(width/2), (height-mouseY), 50);
}
class MRect
{
int w; // single bar width
float xpos; // rect xposition
float h; // rect height
float ypos ; // rect yposition
float d; // single bar distance
float t; // number of bars
MRect(int iw, float ixp, float ih, float iyp, float id, float it) {
w = iw;
xpos = ixp;
h = ih;
ypos = iyp;
d = id;
t = it;
}
void move (float posX, float posY, float damping) {
float dif = ypos - posY;
if (abs(dif) > 1) {
ypos -= dif/damping;
}
dif = xpos - posX;
if (abs(dif) > 1) {
xpos -= dif/damping;
}
}
void display() {
for (int i=0; i<t; i++) {
rect(xpos+(i*(d+w)), ypos, w, height*h);
}
}
}</pre></div>