feat(loveutils): add basic table functions

This commit is contained in:
Kazhnuz 2019-06-29 11:49:48 +02:00
parent 91fc55555f
commit 4cb3a7a105
3 changed files with 56 additions and 1 deletions

View file

@ -23,6 +23,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- **world:** Add a way to automatically load hitbox from a file - **world:** Add a way to automatically load hitbox from a file
- **utils:** Add basic table functions
### Changed ### Changed
- **world2D:** Use a list for bodies (hitboxes, etc) and one other for actors - **world2D:** Use a list for bodies (hitboxes, etc) and one other for actors

View file

@ -27,5 +27,6 @@ local cwd = (...):gsub('%.init$', '') .. "."
return { return {
math = require(cwd .. "math"), math = require(cwd .. "math"),
graphics = require(cwd .. "graphics"), graphics = require(cwd .. "graphics"),
filesystem = require(cwd .. "filesystem") filesystem = require(cwd .. "filesystem"),
table = require(cwd .. "table")
} }

52
gamecore/utils/table.lua Normal file
View file

@ -0,0 +1,52 @@
-- loveutils.table : simple functions for table manipulation and computation.
-- TODO: could be a part of loveutils.math ?
--[[
Copyright © 2019 Kazhnuz
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
]]
local Table = {}
function Table.reduce(list, fn)
local acc
for k, v in ipairs(list) do
if 1 == k then
acc = v
else
acc = fn(acc, v)
end
end
return acc
end
function Table.sum(table)
local sum = 0
for _, v in kpairs(table) do
sum = sum + v
end
return v
end
function Table.average(table)
return Table.sum(table) / #table
end
return Table