mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-12-26 15:27:29 +01:00
31 lines
810 B
Lua
31 lines
810 B
Lua
|
local Vector3 = require("worldeditadditions.utils.vector3")
|
||
|
|
|
||
|
|
-- To find these numbers, in Javascript:
|
||
|
|
-- function t(x) { return Math.sqrt((x*x)*3); }
|
||
|
|
-- for(let i = 0; i < 1000000000; i++) { let r = t(i); if(Math.floor(r) === r) console.log(`i ${i}, r ${r}`); }
|
||
|
|
|
||
|
|
|
||
|
|
describe("Vector3.length", function()
|
||
|
|
it("should work with a positive vector", function()
|
||
|
|
local a = Vector3.new(80198051, 80198051, 80198051)
|
||
|
|
assert.are.equal(
|
||
|
|
138907099,
|
||
|
|
a:length()
|
||
|
|
)
|
||
|
|
end)
|
||
|
|
it("should work with a negative vector", function()
|
||
|
|
local a = Vector3.new(-189750626, -189750626, -189750626)
|
||
|
|
assert.are.equal(
|
||
|
|
328657725,
|
||
|
|
a:length()
|
||
|
|
)
|
||
|
|
end)
|
||
|
|
it("should work with a mixed vector", function()
|
||
|
|
local a = Vector3.new(-371635731, 371635731, -371635731)
|
||
|
|
assert.are.equal(
|
||
|
|
643691968,
|
||
|
|
a:length()
|
||
|
|
)
|
||
|
|
end)
|
||
|
|
end)
|