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Builtin: Add vector.floor helper function

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This commit is contained in:
rubenwardy
2016-10-17 20:36:38 +01:00
committed by Ner'zhul
parent a291cd6132
commit 0d740c5d82
2 changed files with 10 additions and 2 deletions
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9
builtin/common/vector.lua
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@@ -31,6 +31,14 @@ function vector.normalize(v)
end end
end end
function vector.floor(v)
return {
x = math.floor(v.x),
y = math.floor(v.y),
z = math.floor(v.z)
}
end
function vector.round(v) function vector.round(v)
return { return {
x = math.floor(v.x + 0.5), x = math.floor(v.x + 0.5),
@@ -130,4 +138,3 @@ function vector.divide(a, b)
z = a.z / b} z = a.z / b}
end end
end end

3
doc/lua_api.txt
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@@ -1812,7 +1812,8 @@ Spatial Vectors
* `vector.distance(p1, p2)`: returns a number * `vector.distance(p1, p2)`: returns a number
* `vector.length(v)`: returns a number * `vector.length(v)`: returns a number
* `vector.normalize(v)`: returns a vector * `vector.normalize(v)`: returns a vector
* `vector.round(v)`: returns a vector, each dimension rounded to floor * `vector.floor(v)`: returns a vector, each dimension rounded down
* `vector.round(v)`: returns a vector, each dimension rounded to nearest int
* `vector.apply(v, func)`: returns a vector * `vector.apply(v, func)`: returns a vector
* `vector.equals(v1, v2)`: returns a boolean * `vector.equals(v1, v2)`: returns a boolean