From 84f83fb02efb544e6a17665532cb3ad1eb59eee4 Mon Sep 17 00:00:00 2001
From: Fen Dweller <chemicalcrux@gmail.com>
Date: Sun, 18 Feb 2018 20:42:59 -0500
Subject: [PATCH] Added support for metric and customary units

---
 game.js     | 18 +++++++++++++---
 stroll.html |  2 ++
 units.js    | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 77 insertions(+), 3 deletions(-)
 create mode 100644 units.js

diff --git a/game.js b/game.js
index 995fc9e..eccff85 100644
--- a/game.js
+++ b/game.js
@@ -7,6 +7,8 @@ var strolling = false;
 var maxStomachDigest = 10;
 var maxBowelsDigest = 10;
 
+var metric = true;
+
 victims = {};
 
 function toggle_auto()
@@ -18,6 +20,16 @@ function toggle_auto()
   else
     update(["You stop walking."]);
 }
+
+function toggle_units()
+{
+  metric = !metric;
+
+  document.getElementById("button-units").innerHTML = metric ? "Metric" : "Customary";
+
+  update();
+}
+
 function initVictims()
 {
   return {
@@ -167,8 +179,8 @@ function update(lines = [])
   var height = baseHeight * scale;
   var mass = baseMass * Math.pow(scale, 3);
 
-  document.getElementById("height").innerHTML = "Height: " + Math.round(height * 3) + " feet";
-  document.getElementById("mass").innerHTML = "Mass: " + Math.round(mass * 2.2) + " pounds";
+  document.getElementById("height").innerHTML = "Height: " + (metric ? metricLength(height) : customaryLength(height));
+  document.getElementById("mass").innerHTML = "Mass: " + (metric ? metricMass(mass) : customaryMass(mass));
 
   for (var type in victims) {
     if (victims.hasOwnProperty(type)) {
@@ -270,7 +282,7 @@ window.addEventListener('load', function(event) {
   document.getElementById("button-stomp").addEventListener("click",stomp);
   document.getElementById("button-anal_vore").addEventListener("click",anal_vore);
   document.getElementById("button-stroll").addEventListener("click",toggle_auto);
-
+  document.getElementById("button-units").addEventListener("click",toggle_units);
   setTimeout(pick_move, 2000);
 
   update();
diff --git a/stroll.html b/stroll.html
index a767a71..56f6b6b 100644
--- a/stroll.html
+++ b/stroll.html
@@ -4,6 +4,7 @@
     <meta charset="utf-8">
     <title>Stroll</title>
     <link rel="stylesheet" href="style.css">
+    <script src="units.js"></script>
     <script src="recursive-desc.js"></script>
     <script src="recursive-macro.js"></script>
     <script src="game.js"></script>
@@ -26,6 +27,7 @@
       <div></div>
       <button id=button-stroll>Stroll</button>
       <div id=strolling-indicator>Standing</div>
+      <button id=button-units>Metric</button>
       <div class=flex-container>
         <div class=stat-header id=stats-stomped>
           <p>Stomped</p>
diff --git a/units.js b/units.js
new file mode 100644
index 0000000..d9ea0bd
--- /dev/null
+++ b/units.js
@@ -0,0 +1,60 @@
+function round(number,precision=3) {
+  return Math.round(number*Math.pow(10,precision)) / Math.pow(10,precision);
+}
+
+function metricMass(kg) {
+  if (kg < 1) {
+    var mass = round(kg * 1000);
+    return mass + (mass == 1 ? " gram" : " grams");
+  } else if (kg < 5000) {
+    var mass = round(kg);
+    return mass + (mass == 1 ? " kilogram" : " kilograms");
+  } else {
+    var mass = round(kg / 1000);
+    return mass + (mass == 1 ? " metric ton" : " metric tons");
+  }
+}
+
+function customaryMass(kg) {
+  var lbs = kg * 2.2;
+
+  if (lbs < 1) {
+    var mass = round(lbs * 16);
+    return mass + (mass == 1 ? " ounce" : " ounces");
+  } else if (lbs < 2000) {
+    var mass = round(lbs);
+    return mass + (mass == 1 ? " pound" : " pounds");
+  } else {
+    var mass = round(lbs / 2000);
+    return mass + (mass == 1 ? "ton" : " tons");
+  }
+}
+
+function metricLength(m) {
+  if (m < 1) {
+    var length = round(m * 100);
+    return length + (length == 1 ? " centimeter" : " centimeters");
+  } else if (m < 500) {
+    var length = round(m);
+    return length + (length == 1 ? " meter" : " meters");
+  } else {
+    var length = round(m / 1000);
+    return length + (length == 1 ? " kilometer" : " kilometers");
+  }
+}
+
+function customaryLength(m) {
+  var ft = m * 3.28084;
+
+  if (ft < 1) {
+    var length = round(ft * 12,0);
+    return length + (length == 1 ? " inch" : " inches");
+  } else if (ft < 5280) {
+    var end = customaryLength((ft - Math.floor(ft))/3.28084);
+    var length = Math.floor(ft);
+    return length + (length == 1 ? " foot" : " feet") + " " + end;
+  } else {
+    var length = round(ft/5280);
+    return length + (length == 1 ? " mile" : " miles");
+  }
+}