56 lines
1.5 KiB
Lua
56 lines
1.5 KiB
Lua
--- @class SpriteAtlas
|
|
--- @field tileSize integer
|
|
--- @field atlas love.Image
|
|
--- @field map table<string, love.Quad>
|
|
local spriteAtlas = {}
|
|
spriteAtlas.__index = spriteAtlas
|
|
|
|
--- @param path table
|
|
local function load(path)
|
|
--- @type love.Image
|
|
local atlas = path.atlas
|
|
--- @type table
|
|
local manifest = path.manifest
|
|
|
|
local _spriteAtlas = {
|
|
tileSize = manifest.tileSize,
|
|
atlas = atlas,
|
|
map = {}
|
|
}
|
|
manifest.tileSize = nil
|
|
|
|
local layout = {}
|
|
for group, ids in pairs(manifest) do
|
|
for _, id in ipairs(ids) do
|
|
if layout[id] then
|
|
table.insert(layout[id], group)
|
|
else
|
|
layout[id] = { group }
|
|
end
|
|
end
|
|
end
|
|
|
|
local cnt = 0
|
|
for y = 0, atlas:getHeight() - 1, _spriteAtlas.tileSize do
|
|
for x = 0, atlas:getWidth() - 1, _spriteAtlas.tileSize do
|
|
if layout[cnt] then
|
|
for _, group in ipairs(layout[cnt]) do
|
|
print(x, y, _spriteAtlas.tileSize, atlas, false)
|
|
local quad = love.graphics.newQuad(x, y, _spriteAtlas.tileSize, _spriteAtlas.tileSize, atlas)
|
|
|
|
if _spriteAtlas.map[group] then
|
|
table.insert(_spriteAtlas.map[group], quad)
|
|
else
|
|
_spriteAtlas.map[group] = { quad }
|
|
end
|
|
end
|
|
end
|
|
cnt = cnt + 1
|
|
end
|
|
end
|
|
|
|
return setmetatable(_spriteAtlas, spriteAtlas)
|
|
end
|
|
|
|
return { load = load }
|