local assertArgs = include "assertArgs"

local util = include "util"

local CelluloPlane = lib "class" ("CelluloPlane")

CelluloPlane:include(mixin "_has" ("OffsetX"))
CelluloPlane:include(mixin "_has" ("OffsetY"))
CelluloPlane:include(mixin "Dimensions")

function CelluloPlane:initialize(args)
    assertArgs(args, "ox", "oy", "width", "height")
    self:setOffsetX(args.ox)
    self:setOffsetY(args.oy)
    self:setDimensions(args.width, args.height, 0)
    return self
end

function CelluloPlane:absoluteToRelative(x, y)
    return x - self:getOffsetX(), y - self:getOffsetY()
end

function CelluloPlane:normalizedRelativeToAbsolute(x, y)
    x, y = x * self:getWidth() / 2, y * self:getHeight() / 2
    x, y = x + self:getOffsetX(), y + self:getOffsetY()
    return x, y
end

function CelluloPlane:normalized(x, y)
    return x / self:getWidth(), y / self:getHeight()
end

function CelluloPlane:normalizedRelative(x, y)
    x, y = self:absoluteToRelative(x, y)
    x, y = self:normalized(x, y)
    return x * 2, y * 2
end

return CelluloPlane