random walk 2D [4 choices]

Random Walk 1.0
Inspired by “The Nature of Code” by Daniel Shiffman and it’s python translator Jake Hebbert.
Using C# in Grasshopper for Rhinoceros

[code language=”csharp”]
// Philipp Siedler
// Daniel Shiffman "The Nature of Code"
// Random Walk 1.0

private void RunScript(int seed, int time, ref object A)
{
List <Point3d> pList = new List<Point3d>();

Walker w = new Walker();
Random random = new Random(seed);

for(int i = 0; i < time; i++){
int rnd = random.Next(0, 4);
w.step(rnd);
pList.Add(w.pos());
}

A = pList;
}

public class Walker
{
public int x;
public int y;
public int rnd;

public Walker(){
x = 0;
y = 0;
rnd = 0;
}

public Point3d pos(){
Point3d posPt = new Point3d(x, y, 0);
return posPt;
}

public int step(int rnd){
int choice = rnd;
if (choice == 0){
x++;
}
else if( choice == 1){
x–;
}
else if(choice == 2){
y++;
}
else if(choice == 3){
y–;
}

return choice;
}
}
[/code]

Output:
[youtube https://www.youtube.com/watch?v=fpIquBvebuk?rel=0&controls=0&showinfo=0&w=560&h=315]

3 Comments

  1. why have you used Point3d when your z axis is unused?

  2. […] this link, the author implemented a simulation of a 2D random […]

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