FAQ
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FAQ |
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Examples for Processing (BETA) version 91+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know. |
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Recursion by REAS <http://reas.com> A demonstration of recursion, which means functions call themselves. Notice how the drawCircle() function calls itself at the end of its block. It continues to do this until the variable "level" is equal to 1. Created 17 April 2005 |
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// Recursion
// by REAS <http://reas.com>
void setup()
{
size(200, 200);
noStroke();
smooth();
drawCircle(100, 100, 80, 8);
}
void drawCircle(float x, float y, int radius, int level)
{
float tt = 126 * level/6.0;
fill(tt, 153);
ellipse(x, y, radius*2, radius*2);
if(level > 1) {
level = level - 1;
int num = int(random(2, 6));
for(int i=0; i<num; i++) {
float a = random(0, TWO_PI);
float nx = x + cos(a) * 6.0 * level;
float ny = y + sin(a) * 6.0 * level;
drawCircle(nx, ny, radius/2, level);
}
}
}
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| Processing is an open project initiated by Ben Fry and Casey Reas | ||
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