From bcf9b230be6d74c71567fd0771b31d47d8dd39c7 Mon Sep 17 00:00:00 2001
From: Brian Picciano <mediocregopher@gmail.com>
Date: Thu, 21 Jan 2021 17:22:53 -0700
Subject: build the blog with nix

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 src/_posts/2018-11-12-viz-2.md | 49 ++++++++++++++++++++++++++++++++++++++++++
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+---
+title: >-
+    Visualization 2
+description: >-
+    Now in glorious technicolor!
+series: viz
+git_repo: https://github.com/mediocregopher/viz.git
+git_commit: v2
+---
+
+
+<script src="/assets/viz/2/goog/base.js"></script>
+<script src="/assets/viz/2/cljs_deps.js"></script>
+<script>goog.require("viz.core");</script>
+<p align="center"><canvas id="viz"></canvas></p>
+
+This visualization builds on the previous. Structurally the cartesian grid has
+been turned into an isometric one, but this is more of an environmental change
+than a behavioral one.
+
+Behavioral changes which were made:
+
+* When a live point is deciding its next spawn points, it first sorts the set of
+  empty adjacent points from closest-to-the-center to farthest. It then chooses
+  a number `n` between `0` to `N` (where `N` is the sorted set's size) and
+  spawns new points from the first `n` points of the sorted set. `n` is chosen
+  based on:
+
+  * The live point's linear distance from the center.
+
+  * A random multiplier.
+
+* Each point is spawned with an attached color, where the color chosen is a
+  slightly different hue than its parent. The change is deterministic, so all
+  child points of the same generation have the same color.
+
+The second change is purely cosmetic, but does create a mesmerizing effect. The
+first change alters the behavior dramatically. Only the points which compete for
+the center are able to reproduce, but by the same token are more likely to be
+starved out by other points doing the same.
+
+In the previous visualization the points moved around in groups aimlessly. Now
+the groups are all competing for the same thing, the center. As a result they
+congregate and are able to be viewed as a larger whole.
+
+The constant churn of the whole takes many forms, from a spiral in the center,
+to waves crashing against each other, to outright chaos, to random purges of
+nearly all points. Each form lasts for only a few seconds before giving way to
+another.
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