BRNSystems/minetest
1
0
Fork 0
forked from Mirrorlandia_minetest/minetest
Code Pull Requests 1 Activity

Add vector.offset (#10321)

Browse Source
This commit is contained in:
DS 2020-08-29 17:41:29 +02:00 committed by GitHub
parent 9976f36b18
commit 28e87ce9d5
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 16 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
builtin/common/tests/vector_spec.lua
View File

@ -44,6 +44,10 @@ describe("vector", function()
assert.same({ x = 2, y = 4, z = 6 }, vector.add(vector.new(1, 2, 3), { x = 1, y = 2, z = 3 })) assert.same({ x = 2, y = 4, z = 6 }, vector.add(vector.new(1, 2, 3), { x = 1, y = 2, z = 3 }))
end) end)
it("offset()", function()
assert.same({ x = 41, y = 52, z = 63 }, vector.offset(vector.new(1, 2, 3), 40, 50, 60))
end)
-- This function is needed because of floating point imprecision. -- This function is needed because of floating point imprecision.
local function almost_equal(a, b) local function almost_equal(a, b)
if type(a) == "number" then if type(a) == "number" then

6
builtin/common/vector.lua
View File

@ -137,6 +137,12 @@ function vector.divide(a, b)
end end
end end
function vector.offset(v, x, y, z)
return {x = v.x + x,
y = v.y + y,
z = v.z + z}
end
function vector.sort(a, b) function vector.sort(a, b)
return {x = math.min(a.x, b.x), y = math.min(a.y, b.y), z = math.min(a.z, b.z)}, return {x = math.min(a.x, b.x), y = math.min(a.y, b.y), z = math.min(a.z, b.z)},
{x = math.max(a.x, b.x), y = math.max(a.y, b.y), z = math.max(a.z, b.z)} {x = math.max(a.x, b.x), y = math.max(a.y, b.y), z = math.max(a.z, b.z)}

10
doc/lua_api.txt
View File

@ -3062,10 +3062,12 @@ For the following functions, `v`, `v1`, `v2` are vectors,
* Returns in order minp, maxp vectors of the cuboid defined by `v1`, `v2`. * Returns in order minp, maxp vectors of the cuboid defined by `v1`, `v2`.
* `vector.angle(v1, v2)`: * `vector.angle(v1, v2)`:
* Returns the angle between `v1` and `v2` in radians. * Returns the angle between `v1` and `v2` in radians.
* `vector.dot(v1, v2)` * `vector.dot(v1, v2)`:
* Returns the dot product of `v1` and `v2` * Returns the dot product of `v1` and `v2`.
* `vector.cross(v1, v2)` * `vector.cross(v1, v2)`:
* Returns the cross product of `v1` and `v2` * Returns the cross product of `v1` and `v2`.
* `vector.offset(v, x, y, z)`:
* Returns the sum of the vectors `v` and `{x = x, y = y, z = z}`.
For the following functions `x` can be either a vector or a number: For the following functions `x` can be either a vector or a number: