Load materials from path

load_materials.lua

--- Loads all materials in a path
-- @param string path: path to analyse
-- @return table: a table containing every materials depending on 
local function loadMaterials(path)
    local files, directory = file.Find(path .. '*', 'GAME')
    local materials = {}

    for _, dir in pairs(directory) do -- launch the function in the other directories
        table.Merge(materials, loadMaterials(path .. dir .. '/'))
    end
    for _, f in pairs(files) do
        materials[string.GetFileFromFilename(f)] = Material(path .. f)
    end

    return materials
end