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27 lines
591 B
27 lines
591 B
--[[ |
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An example of using the copy() method on userdata |
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--]] |
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local loc1 = Location() |
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loc1:lat(-35) |
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loc1:lng(-122) |
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-- if we did this as loc2 = loc1 then it actually takes a reference |
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-- by using copy() we get the intended behaviour |
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local loc2 = loc1:copy() |
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loc2:offset(3000,5000) |
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local diff = loc1:get_distance_NE(loc2) |
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gcs:send_text(0,string.format("locdiff=(%.2f,%.2f)", diff:x(), diff:y())) |
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local v1 = Vector2f() |
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v1:x(-35) |
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v1:y(-122) |
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local v2 = v1:copy() |
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v2:x(v2:x()+100) |
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v2:y(v2:y()+300) |
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local diff = v2 - v1 |
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gcs:send_text(0,string.format("vdiff=(%.2f,%.2f)", diff:x(), diff:y()))
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