From 1d56dfbb1c5ed0ffba7bad732a9a3731359d5816 Mon Sep 17 00:00:00 2001
From: "Alex A. Naanou" <alex.nanou@gmail.com>
Date: Thu, 13 Apr 2017 14:22:01 +0300
Subject: [PATCH] refactored simple snake to a separate module...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
---
 simplesnake/simplesnake.html                  |  85 ++++++++++++
 .../simplesnake.js                            | 122 +++++-------------
 2 files changed, 120 insertions(+), 87 deletions(-)
 create mode 100644 simplesnake/simplesnake.html
 rename jsssnake/simplesnake.html => simplesnake/simplesnake.js (81%)
 mode change 100644 => 100755
diff --git a/simplesnake/simplesnake.html b/simplesnake/simplesnake.html
new file mode 100644
index 0000000..80954de
--- /dev/null
+++ b/simplesnake/simplesnake.html
@@ -0,0 +1,85 @@
+<!DOCTYPE html>
+<html>
+<head> 
+<title>Simple Snake</title> 
+
+<style>
+
+body.hints:before,
+body.hints:after {
+	display: block;
+	position: absolute;
+	left: 0;
+	top: 12.5%;
+	bottom: 12.5%;
+	z-index: 100;
+}
+body.hints:before {
+	content: "";
+	width: 100%;
+	border-top: dashed 0.5vmin red;
+	border-bottom: dashed 0.5vmin red;
+}
+body.hints:after {
+	content: "↺↻";
+	width: 37vmin;
+	right: 50%;
+	left: auto;
+	overflow: visible;
+	border-right: dashed 0.5vmin red;
+
+	color: rgba(255, 0, 0, 0.5);
+	font-size: 15vmin;
+	line-height: 70vmin;
+	white-space: pre;
+	letter-spacing: 50vmin;
+}
+.hints .simplesnake {
+	opacity: 0.3;
+}
+.hints .simplesnake:before,
+.hints .simplesnake:after {
+	position: absolute;
+	display: block;
+	text-align: center;
+	width: 100vw;
+	color: red;
+	font-size: 5vh;
+	line-height: 10vh;
+	z-index: 100;
+}
+.hints .simplesnake:before {
+	content: "new level";
+}
+.hints .simplesnake:after {
+	bottom: 0;
+	content: "pause";
+}
+
+body {
+	font-family: sans-serif;
+	overflow: hidden;
+}
+
+.simplesnake .field {
+	position: relative;
+	left: 50%;
+	margin-left: -45vmin;
+
+	width: 90vmin;
+	height: 90vmin;
+	border: solid 1px silver;
+}
+
+</style>
+
+<script src="simplesnake.js"></script>
+
+</head>
+<body onload="setup()" onclick="clearHints()" class="hints">
+
+<div class="simplesnake"> </div>
+
+</body>
+</html>
+<!-- vim:set ts=4 sw=4 spell : -->
diff --git a/jsssnake/simplesnake.html b/simplesnake/simplesnake.js
old mode 100644
new mode 100755
similarity index 81%
rename from jsssnake/simplesnake.html
rename to simplesnake/simplesnake.js
index 47fad87..c0ab87b
--- a/jsssnake/simplesnake.html
+++ b/simplesnake/simplesnake.js
@@ -1,76 +1,33 @@
-<!DOCTYPE html>
-<html>
-<style>
-
-body.hints:before,
-body.hints:after {
-	display: block;
-	position: absolute;
-	left: 0;
-	top: 12.5%;
-	bottom: 12.5%;
-	z-index: 100;
-}
-body.hints:before {
-	content: "";
-	width: 100%;
-	border-top: dashed 0.5vmin red;
-	border-bottom: dashed 0.5vmin red;
-}
-body.hints:after {
-	content: "↺↻";
-	width: 37vmin;
-	right: 50%;
-	left: auto;
-	overflow: visible;
-	border-right: dashed 0.5vmin red;
-
-	color: rgba(255, 0, 0, 0.5);
-	font-size: 15vmin;
-	line-height: 70vmin;
-	white-space: pre;
-	letter-spacing: 50vmin;
-}
-.hints .simplesnake {
-	opacity: 0.3;
-}
-.hints .simplesnake:before,
-.hints .simplesnake:after {
-	position: absolute;
-	display: block;
-	text-align: center;
-	width: 100vw;
-	color: red;
-	font-size: 5vh;
-	line-height: 10vh;
-	z-index: 100;
-}
-.hints .simplesnake:before {
-	content: "new level";
-}
-.hints .simplesnake:after {
-	bottom: 0;
-	content: "pause";
-}
-
-body {
-	font-family: sans-serif;
-	overflow: hidden;
-}
-
-.simplesnake .field {
-	position: relative;
-	left: 50%;
-	margin-left: -45vmin;
-
-	width: 90vmin;
-	height: 90vmin;
-	border: solid 1px silver;
-}
-
-</style>
-<script>
-//---------------------------------------------------------------------
+/**********************************************************************
+* 
+* Simple Snake 
+*
+* This code is designed to illustrate the non-intuitive approach to an
+* implementation, building a snake game as a cellular automaton rather
+* than the more intuitive, a set of entities (OOP) or a number of sets 
+* of procedures and data structures, directly emulating the "tactile" 
+* perception of the game, i.e. independent field, snakes, walls, apples
+* and their interactions.
+*
+* In this approach there are no entities, no snakes, no apples, no 
+* walls, just a set of cells in a field and cell behaviours per game 
+* step:
+* 	- empty cells, apples and walls just sit there
+* 	- "snake" cells:
+* 		- decrement age
+* 		- if age is 0 clear cell
+* 		- if cell has direction (i.e. snake head)
+* 			- if target cell is red (apple) increment age
+* 			- color new cell in direction:
+* 				- set age on to current age + 1
+* 				- set direction to current
+* 			- clear direction
+*
+* NOTE: that in the above description some details are omitted for 
+* 		clarity...
+*
+*
+**********************************************************************/
 
 function makeEvent(handler_attr){
 	return function(func){
@@ -350,7 +307,8 @@ var Snake = {
 }
 
 
-//---------------------------------------------------------------------
+
+/*********************************************************************/
 
 var HANDLER_SET = false
 var KEY_CONFIG = {
@@ -361,6 +319,7 @@ var KEY_CONFIG = {
 	Left: ['left'],
 	Right: ['right'],
 }
+
 function makeKeyboardHandler(snake){
 	return function(event){
 		clearHints()
@@ -422,16 +381,5 @@ function setup(snake, timer, size){
 
 
 
-//---------------------------------------------------------------------
-</script>
-
-<head> <title>Simple Snake</title> </head>
-
-
-<body onload="setup()" onclick="clearHints()" class="hints">
-
-<div class="simplesnake"> </div>
-
-</body>
-</html>
-<!-- vim:set ts=4 sw=4 spell : -->
+/**********************************************************************
+* vim:set ts=4 sw=4 :                                                */
