Random()
random()
Generates random numbers. Each time the random() function is called, it returns an unexpected value within the specified range.
Reference:http://www.processing.org/reference/random_.html
Syntax random(value1);
random(value1, value2);
Let's start!
//Programed by Yeohyun Ahn
size(250,250);
PFont font;
font = loadFont("Univers-Condensed-48.vlw");
background(255);
for(int i=0;i<250;i=i+20){
textFont(font, 22);
fill(0,0,0);
text("A", random(i), 100);
}
Output:
 
Without random() With random()
//Programed by Yeohyun Ahn
size(250,250);
PFont font;
font = loadFont("Univers-Condensed-48.vlw");
background(255);
for(int i=0;i<250;i=i+20){
textFont(font, 22);
fill(0,0,0);
text("B", random(i), 100);
if(i==0 || i== 40 || i==80 || i==120 || i==160 || i==200 || i==240 )
{
textFont(font, 42);
fill(0,0,0,150);
text("C", random(i), 120);
}
}
Output:
 
Without random() With random()
//Programed by Yeohyun Ahn
size(400,400);
PFont font;
font = loadFont("Univers-Condensed-48.vlw");
background(255);
for(int i=0;i<400;i=i+20){
for(int j=0;j<400;j=j+20){
fill(0,0,0);
textFont(font, 22);
text("T", i, j);
}
}
Output:



text("T", i, j); text("T", random(i), j);
text("T", i, random(j)); text("T", random(i), random(j));
textFont(font, random(abs(i-330)));
text("T",i, random(j)); fill(0,0,0,random(abs(i-150)));
textFont(font, random(abs(i-330)));
text("T",i, random(j));
Exercise1) Change the value of 'i,' and 'j' as well as change your font size, styles, and color.
//Programed by Yeohyun Ahn
int count=0;
void setup(){
size(500,500);
PFont font;
font = loadFont("Bodoni-48.vlw");
background(255);
textFont(font, 142);
}
void draw(){
if(mousePressed)
{
for(int i=300;i<800;i=i+1)
{
if(count%2==0)
{
text("A", random(abs(i-250)+i), random(abs(i-250)+i));
fill(0, 0, 0,255);
rotate((PI/3.0)+i);
}else
{
text("A", random(abs(i-250)+i), random(abs(i-250)+i));
fill(255, 255, 255,255);
rotate((PI/3.0)+i);
}
}
count++;
}
}
Output:



Exercise2) Change the value of 'i,' and 'j' as well as change your font size, style, and color.
Extra Tips:
abs()
Calculates the absolute value (magnitude) of a number.
Reference:http://www.processing.org/reference/abs_.html
