local dimtable = {
    design = {
        width = 1080,
        height = 1920
    },
    screen = {
        width = nil,
        height = nil
    },
    view = {
        width = nil,
        height = nil
    },
    ratio = {
        landscapeUW = 21 / 9,
        landscapeWide = 16 / 9,
        landscapeStd = 4 / 3,
        portrait = 9 / 16
    }
}

dimtable.screen.width, dimtable.screen.height = game.GetResolution()

local function transformToDesignSpace()
    gfx.Translate((dimtable.screen.width - dimtable.view.width) / 2, 0);
    gfx.Scale(dimtable.view.width / dimtable.design.width, dimtable.view.height / dimtable.design.height);
    gfx.Scissor(0, 0, dimtable.design.width, dimtable.design.height);
end

local function updateResolution(ratio)
    if not ratio then
        ratio = dimtable.ratio.portrait
    end

    local screenWidth, screenHeight = game.GetResolution()
    if screenWidth ~= dimtable.screen.width or screenHeight ~= dimtable.screen.height then
        dimtable.screen.width, dimtable.screen.height = screenWidth, screenHeight
        dimtable.view.width, dimtable.view.height = ratio * dimtable.screen.height, dimtable.screen.height
    end
end


-- return by reference trickery:

local t = dimtable
t.transformToDesignSpace = transformToDesignSpace
t.updateResolution = updateResolution
return t