@startuml
skinparam groupInheritance 5

!$myjson = %load_json("somefolder/listof_tech_eng_obj_with_realnames.json")

left to right direction
skinparam BackgroundColor #eee
skinparam titleFontSize 26
skinparam titleFontName Verdana
skinparam titleBorderThickness 0
skinparam titleBorderRoundCorner 12
skinparam titleBackgroundColor Aqua-CadetBlue
skinparam class {
	BorderColor grey
	BackgroundColor #ddd
	FontSize 12
	FontName Verdana
	'BorderColor<<blueprint>> transparent
	'handwritten<<blueprint>> true
}
skinparam package {
	BorderThickness 1
	BorderColor grey
	RoundCorner 20
	Style default
}
<style>
legend {
	FontSize 16
	Padding 14
	Margin 16
}
</style>
hide empty members
hide stereotypes
hide circle
scale max 4000 height

title "UFO: Aftermath" research tree


!$colour = "white"

!foreach $i in $myjson.research
	!if ($i.kind == "SCI")
	!$colour="white"
	!else
	!$colour="yellow"
	!endif
	class "$i.realname" as $i.name #$colour {
		time: $i.time h
	}
!endfor

!foreach $i in $myjson.objects
	!if ($i.type == "EVENT")
	!$colour="cyan"
	!else
	!$colour="lightgrey"
	!endif
	class "$i.realname" as $i.name #$colour
!endfor

!foreach $i in $myjson.research
	!foreach $j in $i.subtechnos
		!if ($j.required == true)
			$j.elements --> $i.name
		!else
			$j.elements -[dotted]-> $i.name
		!endif
	!endfor
!endfor

legend left
	<back:lightgrey>lightgrey colored boxes</back> = looted OBJECTS or captured live ALIENS
	<back:cyan>cyan colored boxes</back> = EVENTS
	<back:white>white colored boxes</back> = SCIENTIFIC research
	<back:yellow>yellow colored boxes</back> = ENGINEERING technology

	Mellarius, 2023. Visually generated by PlantUML.
endlegend
@enduml