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Some work on flow, but mainly tidyup.

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Simon Brooke 2023-07-11 08:22:54 +01:00
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link rel="stylesheet" href="../coverage.css"/> <title> mw_engine/core.clj </title>
</head>
<body>
<span class="covered" title="1 out of 1 forms covered">
001&nbsp;&nbsp;(ns&nbsp;^{:doc&nbsp;&quot;Functions&nbsp;to&nbsp;transform&nbsp;a&nbsp;world&nbsp;and&nbsp;run&nbsp;rules.
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002&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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003&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Every&nbsp;rule&nbsp;is&nbsp;a&nbsp;function&nbsp;of&nbsp;two&nbsp;arguments,&nbsp;a&nbsp;cell&nbsp;and&nbsp;a&nbsp;world.&nbsp;If&nbsp;the&nbsp;rule
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
004&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;fires,&nbsp;it&nbsp;returns&nbsp;a&nbsp;new&nbsp;cell,&nbsp;which&nbsp;should&nbsp;have&nbsp;the&nbsp;same&nbsp;values&nbsp;for&nbsp;`:x`&nbsp;and
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005&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`:y`&nbsp;as&nbsp;the&nbsp;old&nbsp;cell.&nbsp;Anything&nbsp;else&nbsp;can&nbsp;be&nbsp;modified.
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006&nbsp;&nbsp;
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<span class="not-tracked" title="0 out of 0 forms covered">
007&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;While&nbsp;any&nbsp;function&nbsp;of&nbsp;two&nbsp;arguments&nbsp;can&nbsp;be&nbsp;used&nbsp;as&nbsp;a&nbsp;rule,&nbsp;a&nbsp;special&nbsp;high
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
008&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;level&nbsp;rule&nbsp;language&nbsp;is&nbsp;provided&nbsp;by&nbsp;the&nbsp;`mw-parser`&nbsp;package,&nbsp;which&nbsp;compiles
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
009&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;rules&nbsp;expressed&nbsp;in&nbsp;a&nbsp;subset&nbsp;of&nbsp;English&nbsp;rules&nbsp;into&nbsp;suitable&nbsp;functions.
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010&nbsp;&nbsp;
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<span class="not-tracked" title="0 out of 0 forms covered">
011&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A&nbsp;cell&nbsp;is&nbsp;a&nbsp;map&nbsp;containing&nbsp;at&nbsp;least&nbsp;values&nbsp;for&nbsp;the&nbsp;keys&nbsp;:x,&nbsp;:y,&nbsp;and&nbsp;:state;
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012&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a&nbsp;transformation&nbsp;should&nbsp;not&nbsp;alter&nbsp;the&nbsp;values&nbsp;of&nbsp;:x&nbsp;or&nbsp;:y,&nbsp;and&nbsp;should&nbsp;not
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
013&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;a&nbsp;cell&nbsp;without&nbsp;a&nbsp;keyword&nbsp;as&nbsp;the&nbsp;value&nbsp;of&nbsp;:state.&nbsp;Anything&nbsp;else&nbsp;is
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014&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;legal.
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015&nbsp;&nbsp;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
016&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A&nbsp;world&nbsp;is&nbsp;a&nbsp;two&nbsp;dimensional&nbsp;matrix&nbsp;(sequence&nbsp;of&nbsp;sequences)&nbsp;of&nbsp;cells,&nbsp;such
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
017&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;that&nbsp;every&nbsp;cell&#x27;s&nbsp;`:x`&nbsp;and&nbsp;`:y`&nbsp;properties&nbsp;reflect&nbsp;its&nbsp;place&nbsp;in&nbsp;the&nbsp;matrix.
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<span class="not-tracked" title="0 out of 0 forms covered">
018&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;See&nbsp;`world.clj`.
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019&nbsp;&nbsp;
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020&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Each&nbsp;time&nbsp;the&nbsp;world&nbsp;is&nbsp;transformed&nbsp;(see&nbsp;`transform-world`),&nbsp;for&nbsp;each&nbsp;cell,
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
021&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;rules&nbsp;are&nbsp;applied&nbsp;in&nbsp;turn&nbsp;until&nbsp;one&nbsp;matches.&nbsp;Once&nbsp;one&nbsp;rule&nbsp;has&nbsp;matched&nbsp;no
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
022&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;further&nbsp;rules&nbsp;can&nbsp;be&nbsp;applied&nbsp;to&nbsp;that&nbsp;cell.&quot;
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<span class="not-tracked" title="0 out of 0 forms covered">
023&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:author&nbsp;&quot;Simon&nbsp;Brooke&quot;}
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024&nbsp;&nbsp;&nbsp;mw-engine.core
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<span class="not-tracked" title="0 out of 0 forms covered">
025&nbsp;&nbsp;&nbsp;&nbsp;(:require&nbsp;[mw-engine.utils&nbsp;:refer&nbsp;[get-int-or-zero&nbsp;map-world]]
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026&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[taoensso.timbre&nbsp;:as&nbsp;l]))
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027&nbsp;&nbsp;
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028&nbsp;&nbsp;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
</span><br/>
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029&nbsp;&nbsp;;;;;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
030&nbsp;&nbsp;;;;;&nbsp;mw-engine:&nbsp;the&nbsp;state&#x2F;transition&nbsp;engine&nbsp;of&nbsp;MicroWorld.
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
031&nbsp;&nbsp;;;;;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
032&nbsp;&nbsp;;;;;&nbsp;This&nbsp;program&nbsp;is&nbsp;free&nbsp;software;&nbsp;you&nbsp;can&nbsp;redistribute&nbsp;it&nbsp;and&#x2F;or
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
033&nbsp;&nbsp;;;;;&nbsp;modify&nbsp;it&nbsp;under&nbsp;the&nbsp;terms&nbsp;of&nbsp;the&nbsp;GNU&nbsp;General&nbsp;Public&nbsp;License
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
034&nbsp;&nbsp;;;;;&nbsp;as&nbsp;published&nbsp;by&nbsp;the&nbsp;Free&nbsp;Software&nbsp;Foundation;&nbsp;either&nbsp;version&nbsp;2
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
035&nbsp;&nbsp;;;;;&nbsp;of&nbsp;the&nbsp;License,&nbsp;or&nbsp;(at&nbsp;your&nbsp;option)&nbsp;any&nbsp;later&nbsp;version.
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
036&nbsp;&nbsp;;;;;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
037&nbsp;&nbsp;;;;;&nbsp;This&nbsp;program&nbsp;is&nbsp;distributed&nbsp;in&nbsp;the&nbsp;hope&nbsp;that&nbsp;it&nbsp;will&nbsp;be&nbsp;useful,
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
038&nbsp;&nbsp;;;;;&nbsp;but&nbsp;WITHOUT&nbsp;ANY&nbsp;WARRANTY;&nbsp;without&nbsp;even&nbsp;the&nbsp;implied&nbsp;warranty&nbsp;of
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
039&nbsp;&nbsp;;;;;&nbsp;MERCHANTABILITY&nbsp;or&nbsp;FITNESS&nbsp;FOR&nbsp;A&nbsp;PARTICULAR&nbsp;PURPOSE.&nbsp;&nbsp;See&nbsp;the
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
040&nbsp;&nbsp;;;;;&nbsp;GNU&nbsp;General&nbsp;Public&nbsp;License&nbsp;for&nbsp;more&nbsp;details.
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
041&nbsp;&nbsp;;;;;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
042&nbsp;&nbsp;;;;;&nbsp;You&nbsp;should&nbsp;have&nbsp;received&nbsp;a&nbsp;copy&nbsp;of&nbsp;the&nbsp;GNU&nbsp;General&nbsp;Public&nbsp;License
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
043&nbsp;&nbsp;;;;;&nbsp;along&nbsp;with&nbsp;this&nbsp;program;&nbsp;if&nbsp;not,&nbsp;write&nbsp;to&nbsp;the&nbsp;Free&nbsp;Software
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
044&nbsp;&nbsp;;;;;&nbsp;Foundation,&nbsp;Inc.,&nbsp;51&nbsp;Franklin&nbsp;Street,&nbsp;Fifth&nbsp;Floor,&nbsp;Boston,&nbsp;MA&nbsp;&nbsp;02110-1301,
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
045&nbsp;&nbsp;;;;;&nbsp;USA.
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
046&nbsp;&nbsp;;;;;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
047&nbsp;&nbsp;;;;;&nbsp;Copyright&nbsp;(C)&nbsp;2014&nbsp;Simon&nbsp;Brooke
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
048&nbsp;&nbsp;;;;;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
049&nbsp;&nbsp;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
050&nbsp;&nbsp;
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
051&nbsp;&nbsp;(defn&nbsp;apply-rule
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<span class="not-tracked" title="0 out of 0 forms covered">
052&nbsp;&nbsp;&nbsp;&nbsp;&quot;Apply&nbsp;a&nbsp;single&nbsp;`rule`&nbsp;to&nbsp;a&nbsp;`cell`.&nbsp;What&nbsp;this&nbsp;is&nbsp;about&nbsp;is&nbsp;that&nbsp;I&nbsp;want&nbsp;to&nbsp;be&nbsp;able,
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
053&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for&nbsp;debugging&nbsp;purposes,&nbsp;to&nbsp;tag&nbsp;a&nbsp;cell&nbsp;with&nbsp;the&nbsp;rule&nbsp;text&nbsp;of&nbsp;the&nbsp;rule&nbsp;which
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
054&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;fired&nbsp;(and&nbsp;especially&nbsp;so&nbsp;when&nbsp;an&nbsp;exception&nbsp;is&nbsp;thrown.&nbsp;So&nbsp;a&nbsp;rule&nbsp;may&nbsp;be&nbsp;either
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
055&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;an&nbsp;ifn,&nbsp;or&nbsp;a&nbsp;list&nbsp;(ifn&nbsp;source-text).&nbsp;This&nbsp;function&nbsp;deals&nbsp;with&nbsp;despatching
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
056&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;on&nbsp;those&nbsp;two&nbsp;possibilities.&nbsp;`world`&nbsp;is&nbsp;also&nbsp;passed&nbsp;in&nbsp;in&nbsp;order&nbsp;to&nbsp;be&nbsp;able
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
057&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;to&nbsp;access&nbsp;neighbours.&quot;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
058&nbsp;&nbsp;&nbsp;&nbsp;([world&nbsp;cell&nbsp;rule]
</span><br/>
<span class="partial" title="2 out of 3 forms covered">
059&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(cond
</span><br/>
<span class="covered" title="9 out of 9 forms covered">
060&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ifn?&nbsp;rule)&nbsp;(apply-rule&nbsp;world&nbsp;cell&nbsp;rule&nbsp;nil)
</span><br/>
<span class="covered" title="11 out of 11 forms covered">
061&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(seq?&nbsp;rule)&nbsp;(let&nbsp;[[afn&nbsp;src]&nbsp;rule]&nbsp;(apply-rule&nbsp;world&nbsp;cell&nbsp;afn&nbsp;src))))
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
062&nbsp;&nbsp;&nbsp;&nbsp;([world&nbsp;cell&nbsp;rule&nbsp;source]
</span><br/>
<span class="covered" title="8 out of 8 forms covered">
063&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(let&nbsp;[result&nbsp;(apply&nbsp;rule&nbsp;(list&nbsp;cell&nbsp;world))]
</span><br/>
<span class="covered" title="2 out of 2 forms covered">
064&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(cond
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<span class="covered" title="12 out of 12 forms covered">
065&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(and&nbsp;result&nbsp;source)&nbsp;(merge&nbsp;result&nbsp;{:rule&nbsp;source})
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
066&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:else&nbsp;result))))
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
067&nbsp;&nbsp;
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
068&nbsp;&nbsp;(defn-&nbsp;apply-rules
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<span class="not-tracked" title="0 out of 0 forms covered">
069&nbsp;&nbsp;&nbsp;&nbsp;&quot;Derive&nbsp;a&nbsp;cell&nbsp;from&nbsp;this&nbsp;`cell`&nbsp;of&nbsp;this&nbsp;`world`&nbsp;by&nbsp;applying&nbsp;these&nbsp;`rules`.&quot;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
070&nbsp;&nbsp;&nbsp;&nbsp;[world&nbsp;cell&nbsp;rules]
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<span class="not-covered" title="0 out of 6 forms covered">
071&nbsp;&nbsp;&nbsp;&nbsp;(cond&nbsp;(empty?&nbsp;rules)&nbsp;cell
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<span class="not-covered" title="0 out of 8 forms covered">
072&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:else&nbsp;(let&nbsp;[result&nbsp;(apply-rule&nbsp;world&nbsp;cell&nbsp;(first&nbsp;rules))]
</span><br/>
<span class="not-covered" title="0 out of 4 forms covered">
073&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(cond&nbsp;result&nbsp;result
</span><br/>
<span class="not-covered" title="0 out of 7 forms covered">
074&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:else&nbsp;(apply-rules&nbsp;world&nbsp;cell&nbsp;(rest&nbsp;rules))))))
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
075&nbsp;&nbsp;
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
076&nbsp;&nbsp;(defn-&nbsp;transform-cell
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<span class="not-tracked" title="0 out of 0 forms covered">
077&nbsp;&nbsp;&nbsp;&nbsp;&quot;Derive&nbsp;a&nbsp;cell&nbsp;from&nbsp;this&nbsp;`cell`&nbsp;of&nbsp;this&nbsp;`world`&nbsp;by&nbsp;applying&nbsp;these&nbsp;`rules`.&nbsp;If&nbsp;an
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
078&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;exception&nbsp;is&nbsp;thrown,&nbsp;cache&nbsp;its&nbsp;message&nbsp;on&nbsp;the&nbsp;cell&nbsp;and&nbsp;set&nbsp;it&#x27;s&nbsp;state&nbsp;to&nbsp;error&quot;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
079&nbsp;&nbsp;&nbsp;&nbsp;[world&nbsp;cell&nbsp;rules]
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<span class="not-covered" title="0 out of 1 forms covered">
080&nbsp;&nbsp;&nbsp;&nbsp;(try
</span><br/>
<span class="not-covered" title="0 out of 2 forms covered">
081&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(merge
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<span class="not-covered" title="0 out of 5 forms covered">
082&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(apply-rules&nbsp;world&nbsp;cell&nbsp;rules)
</span><br/>
<span class="not-covered" title="0 out of 8 forms covered">
083&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{:generation&nbsp;(+&nbsp;(get-int-or-zero&nbsp;cell&nbsp;:generation)&nbsp;1)})
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
084&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(catch&nbsp;Exception&nbsp;e
</span><br/>
<span class="not-covered" title="0 out of 8 forms covered">
085&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(merge&nbsp;cell&nbsp;{:error
</span><br/>
<span class="not-covered" title="0 out of 3 forms covered">
086&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(format&nbsp;&quot;%s&nbsp;at&nbsp;generation&nbsp;%d&nbsp;when&nbsp;in&nbsp;state&nbsp;%s&quot;
</span><br/>
<span class="not-covered" title="0 out of 1 forms covered">
087&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(.getMessage&nbsp;e)
</span><br/>
<span class="not-covered" title="0 out of 3 forms covered">
088&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(:generation&nbsp;cell)
</span><br/>
<span class="not-covered" title="0 out of 3 forms covered">
089&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(:state&nbsp;cell))
</span><br/>
<span class="not-covered" title="0 out of 5 forms covered">
090&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:stacktrace&nbsp;(map&nbsp;#(.toString&nbsp;%)&nbsp;(.getStackTrace&nbsp;e))
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
091&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:state&nbsp;:error}))))
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
092&nbsp;&nbsp;
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
093&nbsp;&nbsp;(defn&nbsp;transform-world
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
094&nbsp;&nbsp;&nbsp;&nbsp;&quot;Return&nbsp;a&nbsp;world&nbsp;derived&nbsp;from&nbsp;this&nbsp;`world`&nbsp;by&nbsp;applying&nbsp;these&nbsp;`rules`&nbsp;to&nbsp;each&nbsp;cell.&quot;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
095&nbsp;&nbsp;&nbsp;&nbsp;([world&nbsp;rules]
</span><br/>
<span class="not-covered" title="0 out of 7 forms covered">
096&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(map-world&nbsp;world&nbsp;transform-cell&nbsp;(list&nbsp;rules))))
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
097&nbsp;&nbsp;
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
098&nbsp;&nbsp;(defn&nbsp;run-world
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
099&nbsp;&nbsp;&nbsp;&nbsp;&quot;Run&nbsp;this&nbsp;world&nbsp;with&nbsp;these&nbsp;rules&nbsp;for&nbsp;this&nbsp;number&nbsp;of&nbsp;generations.
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
100&nbsp;&nbsp;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
101&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`world`&nbsp;a&nbsp;world&nbsp;as&nbsp;discussed&nbsp;above;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
102&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`init-rules`&nbsp;a&nbsp;sequence&nbsp;of&nbsp;rules&nbsp;as&nbsp;defined&nbsp;above,&nbsp;to&nbsp;be&nbsp;run&nbsp;once&nbsp;to&nbsp;initialise&nbsp;the&nbsp;world;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
103&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`rules`&nbsp;a&nbsp;sequence&nbsp;of&nbsp;rules&nbsp;as&nbsp;defined&nbsp;above,&nbsp;to&nbsp;be&nbsp;run&nbsp;iteratively&nbsp;for&nbsp;each&nbsp;generation;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
104&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`generations`&nbsp;an&nbsp;(integer)&nbsp;number&nbsp;of&nbsp;generations.
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
105&nbsp;&nbsp;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
106&nbsp;&nbsp;&nbsp;&nbsp;Return&nbsp;the&nbsp;final&nbsp;generation&nbsp;of&nbsp;the&nbsp;world.&quot;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
107&nbsp;&nbsp;&nbsp;&nbsp;[world&nbsp;init-rules&nbsp;rules&nbsp;generations]
</span><br/>
<span class="not-covered" title="0 out of 3 forms covered">
108&nbsp;&nbsp;&nbsp;&nbsp;(reduce&nbsp;(fn&nbsp;[world&nbsp;iteration]
</span><br/>
<span class="not-covered" title="0 out of 17 forms covered">
109&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(l&#x2F;info&nbsp;&quot;Running&nbsp;iteration&nbsp;&quot;&nbsp;iteration)
</span><br/>
<span class="not-covered" title="0 out of 4 forms covered">
110&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(transform-world&nbsp;world&nbsp;rules))
</span><br/>
<span class="not-covered" title="0 out of 4 forms covered">
111&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(transform-world&nbsp;world&nbsp;init-rules)
</span><br/>
<span class="not-covered" title="0 out of 3 forms covered">
112&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(range&nbsp;generations)))
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
113&nbsp;&nbsp;
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114&nbsp;&nbsp;
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115&nbsp;&nbsp;
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