celestia/scripts/tour-system.celx

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function goto(o, t)
local obs = celestia:getobserver()
obs:follow(o)
obs:goto(o, t)
while (obs:travelling()) do
wait(0)
end
end
function visit(o)
local i, v
celestia:select(o)
celestia:flash(o:type() .. " - " .. o:name())
goto(o, 3)
wait(0.5)
local children = o:getchildren()
for i, v in ipairs(children) do
visit(v)
end
end
sol = celestia:find("Sol")
visit(sol)