anchors/main.lua at master · lazzy-cipher/anchors · GitHub

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
46
47
48
local love = require("love")
local anchors = require("anchors")

local root = {
  anchors = { 0.25, 0.25, 0.75, 0.75 }, -- anchor sides in order: left, up, down, right
  offsets = nil, -- { left, top, right, bottom }, in pixels
  size = nil, -- { x, y }, relative to the top left position, ignore right and bottom anchors
  children = {
    -- each supports offets and size
    { anchors = { 0.05, 0.05, 0.45, 0.95 } },
    { anchors = { 0.55, 0.05, 0.95, 0.95 } },
    { anchors = { 0.25, 0.25, 0.75, 0.75 } }
  }
}
local frame

function love.resize(_, _)
  frame = anchors.build(root, love.graphics.getDimensions())
end

function love.load()
  love.window.setMode(800, 600, {
    resizable = true
  })
  love.window.setTitle("Anchors")
  love.graphics.setDefaultFilter("nearest", "nearest")

  frame = anchors.build(root)
end

function love.draw()
  love.graphics.setColor(0, 0, 0)
  love.graphics.clear()

  love.graphics.setColor(0.2, 0.2, 0.2)
  love.graphics.rectangle("fill", frame:toXYWH())

  local frame1 = frame.children[1]
  local frame2 = frame.children[2]
  local frame3 = frame.children[3]

  love.graphics.setColor(1, 0, 0, 0.7)
  love.graphics.rectangle("fill", frame1:toXYWH())
  love.graphics.setColor(0, 1, 0, 0.7)
  love.graphics.rectangle("fill", frame2:toXYWH())
  love.graphics.setColor(0, 0, 1, 0.7)
  love.graphics.rectangle("fill", frame3:toXYWH())
end