blob: 5b535fc19d84f74b45c98630d1db4c88f6566ccf (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
local array_methods = {};
local array_mt = { __index = array_methods, __tostring = function (array) return array:concat(", "); end };
local function array(t)
return setmetatable(t or {}, array_mt);
end
function array_methods:map(func, t2)
local t2 = t2 or array{};
for k,v in ipairs(self) do
t2[k] = func(v);
end
return t2;
end
function array_methods:filter(func, t2)
local t2 = t2 or array{};
for k,v in ipairs(self) do
if func(v) then
t2:push(v);
end
end
return t2;
end
array_methods.push = table.insert;
array_methods.pop = table.remove;
array_methods.sort = table.sort;
array_methods.concat = table.concat;
array_methods.length = function (t) return #t; end
function array_methods:random()
return self[math.random(1,#self)];
end
function array_methods:shuffle()
local len = #self;
for i=1,#self do
local r = math.random(i,len);
self[i], self[r] = self[r], self[i];
end
end
_G.array = array
|
