simulated_resolution = v2(1920, 1080)

function screenwriter_to_coords(pos, scale)

    local x, y, width, height, x_px, y_px, width_px, height_px, x_left, x_right, y_top, y_bottom

    x = pos.x
    y = pos.y
    width = scale.x
    height = scale.y

    x_px = x * simulated_resolution.x / 2 + simulated_resolution.x / 2
    y_px = y * simulated_resolution.y / 2 + simulated_resolution.y / 2
    width_px = width * simulated_resolution.x / 2 + simulated_resolution.x / 2
    height_px = height * simulated_resolution.y / 2 + simulated_resolution.y / 2

    x_left = x_px - width_px / 2
    x_right = x_px + width_px / 2
    y_top = y_px - height_px / 2
    y_bottom = y_px + height_px / 2

    return v2(x_left, y_top), v2(x_right, y_bottom)

end

function coords_to_screenwriter(coord1, coord2)

    local x_left, x_right, y_top, y_bottom, width, height

    x_left = math.min(coord1.x, coord2.x)
    x_right = math.max(coord1.x, coord2.x)
    y_top = math.min(coord1.y, coord2.y)
    y_bottom = math.max(coord1.y, coord2.y)

    width = x_right - x_left
    height = y_bottom - y_top

    return coords_partial_to_screenwriter(v2(x_left, x_top), v2(width, height), 1)

end

function coords_partial_to_screenwriter(pos_px, scale_px, anchor)

    local x_px, y_px, x, y, width, height

    if anchor == 1 then --top left
        x_px = pos_px.x + scale_px.x / 2
        y_px = pos_px.y - scale_px.y / 2
    elseif anchor == 2 then --top right
        x_px = pos_px.x - scale_px.x / 2
        y_px = pos_px.y - scale_px.y / 2
    elseif anchor == 3 then --bottom right
        x_px = pos_px.x - scale_px.x / 2
        y_px = pos_px.y + scale_px.y / 2
    elseif anchor == 4 then --bottom left
        x_px = pos_px.x + scale_px.x / 2
        y_px = pos_px.y + scale_px.y / 2
    else --center
        x_px = pos_px.x
        y_px = pos_px.y
    end

    x = x_px / simulated_resolution.x * 2 - 1
    y = y_px / simulated_resolution.y * 2 - 1
    width = scale_px.x / simulated_resolution.x * 2
    height = scale_px.y / simulated_resolution.y * 2

    return v2(x, y), v2(width, height)

end

--[[

simulated_resolution = v2(1920, 1080)

# screenwriter to coords

local pos, scale, x, y, width, height, x_px, y_px, width_px, height_px, x_left, x_right, y_top, y_bottom

#x = .5
#y = 0
#width = 1
#height = 1

pos = v2(.5, 0)
scale = v2(1, 1)

x = pos.x
y = pos.y
width = scale.x
height = scale.y

x_px = x * simulated_resolution.x / 2 + simulated_resolution.x / 2
y_px = y * simulated_resolution.y / 2 + simulated_resolution.y / 2
width_px = width * simulated_resolution.x / 2 + simulated_resolution.x / 2
height_px = height * simulated_resolution.y / 2 + simulated_resolution.y / 2

x_left = x_px - width_px / 2
x_right = x_px + width_px / 2
y_top = y_px - height_px / 2
y_bottom = y_px + height_px / 2

print(x_left) -- 960
print(x_right) -- 1920
print(y_top) -- 270
print(y_bottom) -- 810

# coords to screenwriter

local coord1, coord2, x_left, x_right, y_top, y_bottom, width_px, height_px, x_px, y_px, x, y, width, height

#x_left = 960
#x_right = 1920
#y_top = 270
#y_bottom = 810

coord1 = v2(1920, 270)
coord2 = v2(960, 810)

x_left = math.min(coord1.x, coord2.x)
x_right = math.max(coord1.x, coord2.x)
y_top = math.min(coord1.y, coord2.y)
y_bottom = math.max(coord1.y, coord2.y)

width_px = x_right - x_left
height_px = y_bottom - y_top

x_px = x_left + width_px / 2
y_px = y_top + height_px / 2

x = (x_px - simulated_resolution.x / 2) / simulated_resolution.x * 2
y = (y_px - simulated_resolution.y / 2) / simulated_resolution.y * 2
width = (width_px - simulated_resolution.x / 2) / simulated_resolution.x * 2
height = (height_px - simulated_resolution.y / 2) / simulated_resolution.y * 2

print(x)
print(y)
print(width)
print(height)

]]