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<link rel="stylesheet" href="../coverage.css"/> <title> mw_engine/heightmap.clj </title>
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<span class="covered" title="1 out of 1 forms covered">
001&nbsp;&nbsp;(ns&nbsp;^{:doc&nbsp;&quot;Functions&nbsp;to&nbsp;apply&nbsp;a&nbsp;heightmap&nbsp;to&nbsp;a&nbsp;world.
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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;Heightmaps&nbsp;are&nbsp;considered&nbsp;only&nbsp;as&nbsp;greyscale&nbsp;images,&nbsp;so&nbsp;colour&nbsp;is&nbsp;redundent
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004&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(will&nbsp;be&nbsp;ignored).&nbsp;Darker&nbsp;shades&nbsp;are&nbsp;higher.&quot;
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005&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:author&nbsp;&quot;Simon&nbsp;Brooke&quot;}
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006&nbsp;&nbsp;&nbsp;&nbsp;mw-engine.heightmap
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007&nbsp;&nbsp;&nbsp;&nbsp;(:require&nbsp;[mikera.image.core&nbsp;:refer&nbsp;[load-image&nbsp;filter-image]]
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008&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[mikera.image.filters&nbsp;:as&nbsp;filters]
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009&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[mw-engine.utils&nbsp;:refer&nbsp;[get-int&nbsp;get-neighbours&nbsp;map-world]]
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010&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[mw-engine.world&nbsp;:refer&nbsp;[make-world]]))
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011&nbsp;&nbsp;
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012&nbsp;&nbsp;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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013&nbsp;&nbsp;;;;;
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014&nbsp;&nbsp;;;;;&nbsp;mw-engine:&nbsp;the&nbsp;state&#x2F;transition&nbsp;engine&nbsp;of&nbsp;MicroWorld.
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015&nbsp;&nbsp;;;;;
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016&nbsp;&nbsp;;;;;&nbsp;This&nbsp;program&nbsp;is&nbsp;free&nbsp;software;&nbsp;you&nbsp;can&nbsp;redistribute&nbsp;it&nbsp;and&#x2F;or
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017&nbsp;&nbsp;;;;;&nbsp;modify&nbsp;it&nbsp;under&nbsp;the&nbsp;terms&nbsp;of&nbsp;the&nbsp;GNU&nbsp;General&nbsp;Public&nbsp;License
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018&nbsp;&nbsp;;;;;&nbsp;as&nbsp;published&nbsp;by&nbsp;the&nbsp;Free&nbsp;Software&nbsp;Foundation;&nbsp;either&nbsp;version&nbsp;2
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019&nbsp;&nbsp;;;;;&nbsp;of&nbsp;the&nbsp;License,&nbsp;or&nbsp;(at&nbsp;your&nbsp;option)&nbsp;any&nbsp;later&nbsp;version.
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020&nbsp;&nbsp;;;;;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
021&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,
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022&nbsp;&nbsp;;;;;&nbsp;but&nbsp;WITHOUT&nbsp;ANY&nbsp;WARRANTY;&nbsp;without&nbsp;even&nbsp;the&nbsp;implied&nbsp;warranty&nbsp;of
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023&nbsp;&nbsp;;;;;&nbsp;MERCHANTABILITY&nbsp;or&nbsp;FITNESS&nbsp;FOR&nbsp;A&nbsp;PARTICULAR&nbsp;PURPOSE.&nbsp;&nbsp;See&nbsp;the
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024&nbsp;&nbsp;;;;;&nbsp;GNU&nbsp;General&nbsp;Public&nbsp;License&nbsp;for&nbsp;more&nbsp;details.
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025&nbsp;&nbsp;;;;;
</span><br/>
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026&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
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<span class="not-tracked" title="0 out of 0 forms covered">
027&nbsp;&nbsp;;;;;&nbsp;along&nbsp;with&nbsp;this&nbsp;program;&nbsp;if&nbsp;not,&nbsp;write&nbsp;to&nbsp;the&nbsp;Free&nbsp;Software
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028&nbsp;&nbsp;;;;;&nbsp;Foundation,&nbsp;Inc.,&nbsp;51&nbsp;Franklin&nbsp;Street,&nbsp;Fifth&nbsp;Floor,&nbsp;Boston,&nbsp;MA&nbsp;&nbsp;02110-1301,
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029&nbsp;&nbsp;;;;;&nbsp;USA.
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030&nbsp;&nbsp;;;;;
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031&nbsp;&nbsp;;;;;&nbsp;Copyright&nbsp;(C)&nbsp;2014&nbsp;Simon&nbsp;Brooke
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032&nbsp;&nbsp;;;;;
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033&nbsp;&nbsp;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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034&nbsp;&nbsp;
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<span class="covered" title="1 out of 1 forms covered">
035&nbsp;&nbsp;(defn&nbsp;tag-property
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036&nbsp;&nbsp;&nbsp;&nbsp;&quot;Set&nbsp;the&nbsp;value&nbsp;of&nbsp;this&nbsp;`property`&nbsp;of&nbsp;this&nbsp;cell&nbsp;from&nbsp;the&nbsp;corresponding&nbsp;pixel&nbsp;of&nbsp;this&nbsp;`heightmap`.
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<span class="not-tracked" title="0 out of 0 forms covered">
037&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If&nbsp;the&nbsp;heightmap&nbsp;you&nbsp;supply&nbsp;is&nbsp;smaller&nbsp;than&nbsp;the&nbsp;world,&nbsp;this&nbsp;will&nbsp;break.
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<span class="blank" title="0 out of 0 forms covered">
038&nbsp;&nbsp;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
039&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`world`&nbsp;not&nbsp;actually&nbsp;used,&nbsp;but&nbsp;present&nbsp;to&nbsp;enable&nbsp;this&nbsp;function&nbsp;to&nbsp;be
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
040&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;passed&nbsp;as&nbsp;an&nbsp;argument&nbsp;to&nbsp;`mw-engine.utils&#x2F;map-world`,&nbsp;q.v.
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
041&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`cell`&nbsp;a&nbsp;cell,&nbsp;as&nbsp;discussed&nbsp;in&nbsp;world.clj,&nbsp;q.v.&nbsp;Alternatively,&nbsp;a&nbsp;map;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
042&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`property`&nbsp;the&nbsp;property&nbsp;(normally&nbsp;a&nbsp;keyword)&nbsp;whose&nbsp;value&nbsp;will&nbsp;be&nbsp;set&nbsp;on&nbsp;the&nbsp;cell.
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
043&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`heightmap`&nbsp;an&nbsp;(ideally)&nbsp;greyscale&nbsp;image,&nbsp;whose&nbsp;x&nbsp;and&nbsp;y&nbsp;dimensions&nbsp;should
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
044&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;exceed&nbsp;those&nbsp;of&nbsp;the&nbsp;world&nbsp;of&nbsp;which&nbsp;the&nbsp;`cell`&nbsp;forms&nbsp;part.&quot;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
045&nbsp;&nbsp;&nbsp;&nbsp;([_&nbsp;cell&nbsp;property&nbsp;heightmap]
</span><br/>
<span class="covered" title="5 out of 5 forms covered">
046&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(tag-property&nbsp;cell&nbsp;property&nbsp;heightmap))
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
047&nbsp;&nbsp;&nbsp;&nbsp;([cell&nbsp;property&nbsp;heightmap]
</span><br/>
<span class="covered" title="3 out of 3 forms covered">
048&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(merge&nbsp;cell
</span><br/>
<span class="covered" title="2 out of 2 forms covered">
049&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{property
</span><br/>
<span class="covered" title="5 out of 5 forms covered">
050&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(+&nbsp;(get-int&nbsp;cell&nbsp;property)
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<span class="covered" title="2 out of 2 forms covered">
051&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(-&nbsp;256
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<span class="covered" title="1 out of 1 forms covered">
052&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(abs
</span><br/>
<span class="covered" title="3 out of 3 forms covered">
053&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(mod
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<span class="covered" title="1 out of 1 forms covered">
054&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(.getRGB&nbsp;heightmap
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<span class="covered" title="4 out of 4 forms covered">
055&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;(get-int&nbsp;cell&nbsp;:x)
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<span class="covered" title="4 out of 4 forms covered">
056&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;(get-int&nbsp;cell&nbsp;:y))&nbsp;256))))})))
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<span class="blank" title="0 out of 0 forms covered">
057&nbsp;&nbsp;
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
058&nbsp;&nbsp;(defn&nbsp;tag-gradient
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<span class="not-tracked" title="0 out of 0 forms covered">
059&nbsp;&nbsp;&nbsp;&nbsp;&quot;Set&nbsp;the&nbsp;`gradient`&nbsp;property&nbsp;of&nbsp;this&nbsp;`cell`&nbsp;of&nbsp;this&nbsp;`world`&nbsp;to&nbsp;the&nbsp;difference&nbsp;in
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
060&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;altitude&nbsp;between&nbsp;its&nbsp;highest&nbsp;and&nbsp;lowest&nbsp;neghbours.&quot;
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<span class="not-tracked" title="0 out of 0 forms covered">
061&nbsp;&nbsp;&nbsp;&nbsp;[world&nbsp;cell]
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<span class="covered" title="11 out of 11 forms covered">
062&nbsp;&nbsp;&nbsp;&nbsp;(let&nbsp;[heights&nbsp;(remove&nbsp;nil?&nbsp;(map&nbsp;:altitude&nbsp;(get-neighbours&nbsp;world&nbsp;cell)))
</span><br/>
<span class="partial" title="5 out of 6 forms covered">
063&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;highest&nbsp;(cond&nbsp;(empty?&nbsp;heights)&nbsp;0&nbsp;;;&nbsp;shouldn&#x27;t&nbsp;happen
</span><br/>
<span class="covered" title="4 out of 4 forms covered">
064&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:else&nbsp;(apply&nbsp;max&nbsp;heights))
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<span class="partial" title="5 out of 6 forms covered">
065&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;lowest&nbsp;(cond&nbsp;(empty?&nbsp;heights)&nbsp;0&nbsp;;;&nbsp;shouldn&#x27;t
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<span class="covered" title="4 out of 4 forms covered">
066&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;:else&nbsp;(apply&nbsp;min&nbsp;heights))
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<span class="covered" title="3 out of 3 forms covered">
067&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;gradient&nbsp;(-&nbsp;highest&nbsp;lowest)]
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<span class="covered" title="6 out of 6 forms covered">
068&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(merge&nbsp;cell&nbsp;{:gradient&nbsp;gradient})))
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
069&nbsp;&nbsp;
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
070&nbsp;&nbsp;(defn&nbsp;tag-gradients
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
071&nbsp;&nbsp;&nbsp;&nbsp;&quot;Set&nbsp;the&nbsp;`gradient`&nbsp;property&nbsp;of&nbsp;each&nbsp;cell&nbsp;in&nbsp;this&nbsp;`world`&nbsp;to&nbsp;the&nbsp;difference&nbsp;in
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
072&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;altitude&nbsp;between&nbsp;its&nbsp;highest&nbsp;and&nbsp;lowest&nbsp;neghbours.&quot;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
073&nbsp;&nbsp;&nbsp;&nbsp;[world]
</span><br/>
<span class="not-covered" title="0 out of 4 forms covered">
074&nbsp;&nbsp;&nbsp;&nbsp;(map-world&nbsp;world&nbsp;tag-gradient))
</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;tag-altitude
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
077&nbsp;&nbsp;&nbsp;&nbsp;&quot;Set&nbsp;the&nbsp;altitude&nbsp;of&nbsp;this&nbsp;cell&nbsp;from&nbsp;the&nbsp;corresponding&nbsp;pixel&nbsp;of&nbsp;this&nbsp;heightmap.
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
078&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If&nbsp;the&nbsp;heightmap&nbsp;you&nbsp;supply&nbsp;is&nbsp;smaller&nbsp;than&nbsp;the&nbsp;world,&nbsp;this&nbsp;will&nbsp;break.
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
079&nbsp;&nbsp;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
080&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`world`&nbsp;not&nbsp;actually&nbsp;used,&nbsp;but&nbsp;present&nbsp;to&nbsp;enable&nbsp;this&nbsp;function&nbsp;to&nbsp;be
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
081&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;passed&nbsp;as&nbsp;an&nbsp;argument&nbsp;to&nbsp;`mw-engine.utils&#x2F;map-world`,&nbsp;q.v.;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
082&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`cell`&nbsp;a&nbsp;cell,&nbsp;as&nbsp;discussed&nbsp;in&nbsp;world.clj,&nbsp;q.v.&nbsp;Alternatively,&nbsp;a&nbsp;map;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
083&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`heightmap`&nbsp;an&nbsp;(ideally)&nbsp;greyscale&nbsp;image,&nbsp;whose&nbsp;x&nbsp;and&nbsp;y&nbsp;dimensions&nbsp;should
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
084&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;exceed&nbsp;those&nbsp;of&nbsp;the&nbsp;world&nbsp;of&nbsp;which&nbsp;the&nbsp;`cell`&nbsp;forms&nbsp;part.&quot;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
085&nbsp;&nbsp;&nbsp;&nbsp;([_&nbsp;cell&nbsp;heightmap]
</span><br/>
<span class="covered" title="5 out of 5 forms covered">
086&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(tag-property&nbsp;cell&nbsp;:altitude&nbsp;heightmap))
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
087&nbsp;&nbsp;&nbsp;&nbsp;([cell&nbsp;heightmap]
</span><br/>
<span class="not-covered" title="0 out of 5 forms covered">
088&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(tag-property&nbsp;cell&nbsp;:altitude&nbsp;heightmap)))
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
089&nbsp;&nbsp;
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
090&nbsp;&nbsp;(defn&nbsp;apply-heightmap
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
091&nbsp;&nbsp;&nbsp;&nbsp;&quot;Apply&nbsp;the&nbsp;image&nbsp;file&nbsp;loaded&nbsp;from&nbsp;this&nbsp;path&nbsp;to&nbsp;this&nbsp;world,&nbsp;and&nbsp;return&nbsp;a&nbsp;world&nbsp;whose
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
092&nbsp;&nbsp;&nbsp;&nbsp;altitudes&nbsp;are&nbsp;modified&nbsp;(added&nbsp;to)&nbsp;by&nbsp;the&nbsp;altitudes&nbsp;in&nbsp;the&nbsp;heightmap.&nbsp;It&nbsp;is&nbsp;assumed&nbsp;that
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
093&nbsp;&nbsp;&nbsp;&nbsp;the&nbsp;heightmap&nbsp;is&nbsp;at&nbsp;least&nbsp;as&nbsp;large&nbsp;in&nbsp;x&nbsp;and&nbsp;y&nbsp;dimensions&nbsp;as&nbsp;the&nbsp;world.&nbsp;Note&nbsp;that,&nbsp;in
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
094&nbsp;&nbsp;&nbsp;&nbsp;addition&nbsp;to&nbsp;setting&nbsp;the&nbsp;`:altitude`&nbsp;of&nbsp;each&nbsp;cell,&nbsp;this&nbsp;function&nbsp;also&nbsp;sets&nbsp;the&nbsp;`:gradient`.
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
095&nbsp;&nbsp;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
096&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`world`&nbsp;a&nbsp;world,&nbsp;as&nbsp;defined&nbsp;in&nbsp;`world.clj`,&nbsp;q.v.;&nbsp;if&nbsp;world&nbsp;is&nbsp;not&nbsp;supplied,
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
097&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a&nbsp;world&nbsp;the&nbsp;size&nbsp;of&nbsp;the&nbsp;heightmap&nbsp;will&nbsp;be&nbsp;created;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
098&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`imagepath`&nbsp;a&nbsp;file&nbsp;path&nbsp;or&nbsp;URL&nbsp;which&nbsp;indicates&nbsp;an&nbsp;(ideally&nbsp;greyscale)&nbsp;image&nbsp;file.&quot;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
099&nbsp;&nbsp;&nbsp;&nbsp;([world&nbsp;imagepath]
</span><br/>
<span class="covered" title="3 out of 3 forms covered">
100&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(let&nbsp;[heightmap&nbsp;(filter-image
</span><br/>
<span class="covered" title="3 out of 3 forms covered">
101&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(load-image&nbsp;imagepath)
</span><br/>
<span class="covered" title="2 out of 2 forms covered">
102&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(filters&#x2F;grayscale))]
</span><br/>
<span class="covered" title="2 out of 2 forms covered">
103&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(map-world
</span><br/>
<span class="covered" title="7 out of 7 forms covered">
104&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(map-world&nbsp;world&nbsp;tag-altitude&nbsp;(list&nbsp;heightmap))
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
105&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tag-gradient)))
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
106&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;([imagepath]
</span><br/>
<span class="covered" title="3 out of 3 forms covered">
107&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(let&nbsp;[heightmap&nbsp;(filter-image
</span><br/>
<span class="covered" title="3 out of 3 forms covered">
108&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(load-image&nbsp;imagepath)
</span><br/>
<span class="covered" title="2 out of 2 forms covered">
109&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(filters&#x2F;grayscale))
</span><br/>
<span class="covered" title="4 out of 4 forms covered">
110&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;world&nbsp;(make-world&nbsp;(.getWidth&nbsp;heightmap)&nbsp;(.getHeight&nbsp;heightmap))]
</span><br/>
<span class="covered" title="2 out of 2 forms covered">
111&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(map-world
</span><br/>
<span class="covered" title="7 out of 7 forms covered">
112&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(map-world&nbsp;world&nbsp;tag-altitude&nbsp;(list&nbsp;heightmap))
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
113&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tag-gradient))))
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
114&nbsp;&nbsp;
</span><br/>
<span class="covered" title="1 out of 1 forms covered">
115&nbsp;&nbsp;(defn&nbsp;apply-valuemap
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
116&nbsp;&nbsp;&nbsp;&nbsp;&quot;Generalised&nbsp;from&nbsp;apply-heightmap,&nbsp;set&nbsp;an&nbsp;arbitrary&nbsp;property&nbsp;on&nbsp;each&nbsp;cell
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
117&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of&nbsp;this&nbsp;`world`&nbsp;from&nbsp;the&nbsp;values&nbsp;in&nbsp;this&nbsp;(ideally&nbsp;greyscale)&nbsp;heightmap.
</span><br/>
<span class="blank" title="0 out of 0 forms covered">
118&nbsp;&nbsp;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
119&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`world`&nbsp;a&nbsp;world,&nbsp;as&nbsp;defined&nbsp;in&nbsp;`world.clj`,&nbsp;q.v.;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
120&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`imagepath`&nbsp;a&nbsp;file&nbsp;path&nbsp;or&nbsp;URL&nbsp;which&nbsp;indicates&nbsp;an&nbsp;(ideally&nbsp;greyscale)&nbsp;image&nbsp;file;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
121&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*&nbsp;`property`&nbsp;the&nbsp;property&nbsp;of&nbsp;each&nbsp;cell&nbsp;whose&nbsp;value&nbsp;should&nbsp;be&nbsp;added&nbsp;to&nbsp;from&nbsp;the
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
122&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;intensity&nbsp;of&nbsp;the&nbsp;corresponding&nbsp;cell&nbsp;of&nbsp;the&nbsp;image.&quot;
</span><br/>
<span class="not-tracked" title="0 out of 0 forms covered">
123&nbsp;&nbsp;&nbsp;&nbsp;[world&nbsp;imagepath&nbsp;property]
</span><br/>
<span class="covered" title="3 out of 3 forms covered">
124&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(let&nbsp;[heightmap&nbsp;(filter-image
</span><br/>
<span class="covered" title="3 out of 3 forms covered">
125&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(load-image&nbsp;imagepath)
</span><br/>
<span class="covered" title="2 out of 2 forms covered">
126&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(filters&#x2F;grayscale))]
</span><br/>
<span class="covered" title="8 out of 8 forms covered">
127&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(map-world&nbsp;world&nbsp;tag-property&nbsp;(list&nbsp;property&nbsp;heightmap))))
</span><br/>
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