initial: set up the environment, added some bootstrapping code, mostly sketched

README.md

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+# ring
+
+A generatively designed ring for the woman I love. For a momentous occasion.

ring/ring.pde

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+class Leaf {
+  PVector pos;
+  
+  Leaf() {
+    pos = PVector.random2D();
+  }
+}
+
+class Branch {
+  PVector pos;
+  
+  Branch(PVector pos) {
+    this.pos = pos;
+  }
+  
+  Branch(Branch b) {
+     this.pos = b.pos;
+  }
+}
+
+class Tree {
+  ArrayList<Branch> branches = new ArrayList<>();
+  ArrayList<Leaf> leaves = new ArrayList<>();
+  
+  Tree() {
+    for (int i = 0; i < 2000; i++) leaves.add(new Leaf());
+    
+    Branch root = new Branch(new PVector(width/2, height/2));
+    branches.add(root);
+    Branch current = new Branch(root);
+    
+    while(!closeEnough(current)) {
+      Branch trunk = new Branch(current);
+      branches.add(trunk);
+      current = trunk;
+    }
+  }
+  
+  boolean closeEnough(Branch b) {
+    for (Leaf l : leaves) {
+       float d = PVector.dist(b.pos, l.pos);
+       if (d < max_dist) return true;
+    }
+    return false;
+  }
+  
+  void show() {
+  }
+  
+  void grow() {
+    Branch closest = null;
+    PVector closestDir = null;
+    float record = -1;
+    
+    for (Branch b : branches) {
+      PVector dir = PVector.sub(l.pos, b.pos);
+      float d = dir.mag();
+      if (d < min_dist) {
+        l.reached();
+        closest = null;
+        break;
+      } else if (closest == null && d <= max_dist) {
+        closest = b;
+        closestDir = dir;
+        record = d;
+      }
+    }
+  }
+}
+
+Tree tree;
+
+float min_dist = 5;
+float max_dist = 50;
+
+void setup() {
+  size(600, 600);
+  frameRate(5);
+  tree = new Tree();
+}
+
+void draw() {
+   background(40);
+   tree.show();
+   tree.grow();
+}