texturepacker_moai.lua

function ResourceMgr:initAtlasDeck(luaFilePath)
    local atlas = self:loadTable(luaFilePath)
    local frames = atlas.frames

    local deck = MOAIGfxQuadDeck2D.new()
    local boundsDeck = MOAIBoundsDeck.new()
    deck:setBoundsDeck(boundsDeck)
    deck.boundsDeck = boundsDeck
    
    boundsDeck:reserveBounds(#frames)
    boundsDeck:reserveIndices(#frames)

    deck:setBoundsDeck(boundsDeck)
    deck:reserve(#frames)
    deck.names = {}
    deck.luaAtlasPath = luaFilePath

    local texture = self:getTexture(atlas.texture)
    if not texture then
        local alternatePath = string.pathJoin(string.pathDir(luaFilePath), atlas.texture)
        texture = self:getTexture(alternatePath)
        assert(texture, "ResourceMgr: texture not found for atlas " .. tostring(luaFilePath))
        texture.scale = App:getContentScale()
    end

    local inv_scale = 1 / texture.scale
    deck.texture = texture
    deck.atlas = atlas
    deck:setTexture(texture)

    for i, frame in ipairs(frames) do
        local uvRect = frame.uvRect
        local uv = {uvRect.u0, uvRect.v0, uvRect.u1, uvRect.v0, uvRect.u1, uvRect.v1, uvRect.u0, uvRect.v1}
        local r = frame.spriteColorRect
        local b = frame.spriteSourceSize

        table.every(r, function(v, i) r[i] = inv_scale * v end)
        table.every(b, function(v, i) b[i] = inv_scale * v end)

        if frame.textureRotated then
            uv = {uv[3], uv[4], uv[5], uv[6], uv[7], uv[8], uv[1], uv[2]}
        end

        deck:setUVQuad(i, unpack(uv))
        deck.names[frame.name] = i

        if string.find(frame.name, "%.tile%.[^%.]+$") then
            deck:setRect(i, -0.5, -0.5, 0.5, 0.5)
            boundsDeck:setBounds(i, -0.5, -0.5, 0, 0.5, 0.5, 0)
        else
            deck:setRect(i, r.x - 0.5 * b.width, 0.5 * b.height - r.height - r.y, r.x + r.width - 0.5 * b.width, 0.5 * b.height - r.y)
            boundsDeck:setBounds(i, -0.5 * b.width, -0.5 * b.height, 0, 0.5 * b.width, 0.5 * b.height, 0)
        end
        boundsDeck:setIndex(i, i)

        self:setAtlasForSprite(luaFilePath, frame.name)
    end

    return deck
end