First commit

Author: idlework

GenerativeTree.pde

@@ -0,0 +1,134 @@
+import java.util.Date;
+import java.text.SimpleDateFormat;
+
+Tree tree;
+
+void setup() {
+ size(1280, 720, P2D);
+ background(#333333);
+ tree = new Tree();
+}
+
+void draw() {
+ tree.draw();
+}
+
+void mousePressed() {
+ background(#333333);
+ tree = new Tree();
+}
+
+void keyPressed() {
+ String timeStamp = new SimpleDateFormat("yyyyMMdd").format(new Date());
+ String name = "tree_" + timeStamp + "_" + frameCount;
+ save(name + ".png");
+}
+
+class Tree {
+ ArrayList<Branch> branches = new ArrayList<Branch>();
+
+ Tree() {
+ // float quarterScreen = width / 4;
+ // float randomHorizontalPosition = random(quarterScreen, width - quarterScreen);
+ // PVector position = new PVector(randomHorizontalPosition, height);
+
+ PVector position = new PVector(width / 2, height);
+ double angle = -1.57;
+ float thickness = 25;
+
+ createBranch(position, angle, thickness);
+ }
+
+ void draw() {
+ Branch branch;
+ boolean divaricate;
+
+ for (int i = 0; i < branches.size(); i++) {
+ branch = branches.get(i);
+ branch.draw();
+ divaricate = Math.round(Math.random() * (branch.thickness / 2)) == 1;
+
+ if (divaricate) {
+ double angle = branch.angle + ((Math.random() - .5) * 2);
+ float thickness = random(1, branch.thickness);
+ createBranch(branch.position, angle, thickness);
+ }
+
+ if (branch.thickness < 7) {
+ Leaf leaf = new Leaf(branch.position.get());
+ leaf.draw();
+ }
+
+ if (branch.ended) {
+ branches.remove(branch);
+ }
+ }
+ }
+
+ void createBranch(PVector position, double angle, float thickness) {
+ Branch branch = new Branch(position, angle, thickness);
+ branches.add(branch);
+ }
+}
+
+class Branch {
+ boolean ended = false;
+
+ PVector position;
+ double angle;
+ float thickness;
+ 
+ Branch(PVector position, double angle, float thickness) {
+ this.position = position;
+ this.angle = angle;
+ this.thickness = thickness;
+
+ strokeCap(ROUND);
+ }
+
+ void draw() {
+ thickness -= .3;
+
+ if (thickness < 1) {
+ ended = true;
+ }
+
+ strokeWeight(thickness);
+
+ double length = (Math.random() * 8) + 4;
+ angle += Math.PI / 180 * ((Math.random() * 30) -15);
+ 
+ PVector newPosition = position.get();
+ newPosition.x += length * Math.cos(angle);
+ newPosition.y += length * Math.sin(angle);
+
+ noFill();
+ stroke(#F5F5F5);
+ line(position.x, position.y, newPosition.x, newPosition.y);
+
+ position = newPosition;
+ }
+}
+
+class Leaf {
+ int[] colors = {#cc0000, #c00000, #cf0000, #d50000, #da0000, #da0000};
+
+ PVector position;
+
+ Leaf(PVector position) {
+ this.position = position;
+ }
+
+ void draw() {
+ int index = (int) random(0, colors.length);
+ color leafColor = colors[index];
+ float leafSize = (float) ((Math.random() * 10) + 2);
+
+ position.x = (float) (-30 + position.x + Math.random() * 60);
+ position.y = (float) (-30 + position.y + Math.random() * 60);
+
+ fill(leafColor);
+ noStroke();
+ ellipse(position.x, position.y, leafSize, leafSize);
+ }
+}