diff --git a/src/levels.lua b/src/levels.lua
index 2ddbf39..03610f0 100644
--- a/src/levels.lua
+++ b/src/levels.lua
@@ -1,4 +1,4 @@
-local LightWorld = require "lib.light_world"
+local LightWorld = require "lib.LightWorld"
 require "lightWorldRectangleFix"
 
 local Object = {}
diff --git a/src/lib/body.lua b/src/lib/LightWorld/body.lua
similarity index 98%
rename from src/lib/body.lua
rename to src/lib/LightWorld/body.lua
index 9cb52f5..fea2a87 100644
--- a/src/lib/body.lua
+++ b/src/lib/LightWorld/body.lua
@@ -109,30 +109,9 @@ function body:setPosition(x, y)
   end
 end
 
--- set x position
-function body:setX(x)
-  if x ~= self.x then
-    self.x = x
-    self:refresh()
-  end
-end
-
--- set y position
-function body:setY(y)
-  if y ~= self.y then
-    self.y = y
-    self:refresh()
-  end
-end
-
 -- get x position
-function body:getX()
-  return self.x
-end
-
--- get y position
-function body:getY(y)
-  return self.y
+function body:getPosition()
+  return self.x, self.y
 end
 
 -- get width
diff --git a/src/lib/class.lua b/src/lib/LightWorld/class.lua
similarity index 100%
rename from src/lib/class.lua
rename to src/lib/LightWorld/class.lua
diff --git a/src/lib/light_world.lua b/src/lib/LightWorld/init.lua
similarity index 93%
rename from src/lib/light_world.lua
rename to src/lib/LightWorld/init.lua
index a804b11..1fb4cd5 100644
--- a/src/lib/light_world.lua
+++ b/src/lib/LightWorld/init.lua
@@ -21,21 +21,24 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 ]]
-local _PACKAGE = (...):match("^(.+)[%./][^%./]+") or ""
-local class = require(_PACKAGE..'/class')
-local Light = require(_PACKAGE..'/light')
-local Body = require(_PACKAGE..'/body')
-local util = require(_PACKAGE..'/util')
-local normal_map = require(_PACKAGE..'/normal_map')
-local PostShader = require(_PACKAGE..'/postshader')
-require(_PACKAGE..'/postshader')
+local _PACKAGE = string.gsub(...,"%.","/") or ""
+if string.len(_PACKAGE) > 0 then
+  _PACKAGE = _PACKAGE .. "/"
+end
+local class = require(_PACKAGE..'class')
+local Light = require(_PACKAGE..'light')
+local Body = require(_PACKAGE..'body')
+local util = require(_PACKAGE..'util')
+local normal_map = require(_PACKAGE..'normal_map')
+local PostShader = require(_PACKAGE..'postshader')
+require(_PACKAGE..'postshader')
 
 local light_world = class()
 
-light_world.blurv              = love.graphics.newShader(_PACKAGE.."/shaders/blurv.glsl")
-light_world.blurh              = love.graphics.newShader(_PACKAGE.."/shaders/blurh.glsl")
-light_world.refractionShader   = love.graphics.newShader(_PACKAGE.."/shaders/refraction.glsl")
-light_world.reflectionShader   = love.graphics.newShader(_PACKAGE.."/shaders/reflection.glsl")
+light_world.blurv              = love.graphics.newShader(_PACKAGE.."shaders/blurv.glsl")
+light_world.blurh              = love.graphics.newShader(_PACKAGE.."shaders/blurh.glsl")
+light_world.refractionShader   = love.graphics.newShader(_PACKAGE.."shaders/refraction.glsl")
+light_world.reflectionShader   = love.graphics.newShader(_PACKAGE.."shaders/reflection.glsl")
 
 function light_world:init(options)
 	self.lights = {}
@@ -43,7 +46,6 @@ function light_world:init(options)
   self.post_shader = PostShader()
 
 	self.ambient              = {0, 0, 0}
-	self.normalInvert         = false
 
 	self.refractionStrength   = 8.0
 	self.reflectionStrength   = 16.0
@@ -51,6 +53,7 @@ function light_world:init(options)
 
 	self.blur                 = 2.0
 	self.glowBlur             = 1.0
+
 	self.glowTimer            = 0.0
 	self.glowDown             = false
 
@@ -275,6 +278,11 @@ function light_world:newLight(x, y, red, green, blue, range)
   return self.lights[#self.lights]
 end
 
+function light_world:clear()
+  light_world:clearLights()
+  light_world:clearBodys()
+end
+
 -- clear lights
 function light_world:clearLights()
   self.lights = {}
@@ -302,26 +310,6 @@ function light_world:setAmbientColor(red, green, blue)
   self.ambient = {red, green, blue}
 end
 
--- set ambient red
-function light_world:setAmbientRed(red)
-  self.ambient[1] = red
-end
-
--- set ambient green
-function light_world:setAmbientGreen(green)
-  self.ambient[2] = green
-end
-
--- set ambient blue
-function light_world:setAmbientBlue(blue)
-  self.ambient[3] = blue
-end
-
--- set normal invert
-function light_world:setNormalInvert(invert)
-  self.normalInvert = invert
-end
-
 -- set blur
 function light_world:setBlur(blur)
   self.blur = blur
diff --git a/src/lib/light.lua b/src/lib/LightWorld/light.lua
similarity index 96%
rename from src/lib/light.lua
rename to src/lib/LightWorld/light.lua
index 2afe867..f5db6c8 100644
--- a/src/lib/light.lua
+++ b/src/lib/LightWorld/light.lua
@@ -46,27 +46,8 @@ function light:setPosition(x, y, z)
 end
 
 -- get x
-function light:getX()
-  return self.x
-end
-
--- get y
-function light:getY()
-  return self.y
-end
-
--- set x
-function light:setX(x)
-  if x ~= self.x then
-    self.x = x
-  end
-end
-
--- set y
-function light:setY(y)
-  if y ~= self.y then
-    self.y = y
-  end
+function light:getPosition()
+  return self.x, self.y
 end
 
 -- set color
diff --git a/src/lib/normal_map.lua b/src/lib/LightWorld/normal_map.lua
similarity index 100%
rename from src/lib/normal_map.lua
rename to src/lib/LightWorld/normal_map.lua
diff --git a/src/lib/postshader.lua b/src/lib/LightWorld/postshader.lua
similarity index 100%
rename from src/lib/postshader.lua
rename to src/lib/LightWorld/postshader.lua
diff --git a/src/lib/shaders/blurh.glsl b/src/lib/LightWorld/shaders/blurh.glsl
similarity index 100%
rename from src/lib/shaders/blurh.glsl
rename to src/lib/LightWorld/shaders/blurh.glsl
diff --git a/src/lib/shaders/blurv.glsl b/src/lib/LightWorld/shaders/blurv.glsl
similarity index 100%
rename from src/lib/shaders/blurv.glsl
rename to src/lib/LightWorld/shaders/blurv.glsl
diff --git a/src/lib/shaders/glow.glsl b/src/lib/LightWorld/shaders/glow.glsl
similarity index 100%
rename from src/lib/shaders/glow.glsl
rename to src/lib/LightWorld/shaders/glow.glsl
diff --git a/src/lib/shaders/material.glsl b/src/lib/LightWorld/shaders/material.glsl
similarity index 100%
rename from src/lib/shaders/material.glsl
rename to src/lib/LightWorld/shaders/material.glsl
diff --git a/src/lib/shaders/normal.glsl b/src/lib/LightWorld/shaders/normal.glsl
similarity index 100%
rename from src/lib/shaders/normal.glsl
rename to src/lib/LightWorld/shaders/normal.glsl
diff --git a/src/lib/shaders/normal_invert.glsl b/src/lib/LightWorld/shaders/normal_invert.glsl
similarity index 100%
rename from src/lib/shaders/normal_invert.glsl
rename to src/lib/LightWorld/shaders/normal_invert.glsl
diff --git a/src/lib/shaders/poly_shadow.glsl b/src/lib/LightWorld/shaders/poly_shadow.glsl
similarity index 100%
rename from src/lib/shaders/poly_shadow.glsl
rename to src/lib/LightWorld/shaders/poly_shadow.glsl
diff --git a/src/lib/shaders/postshaders/black_and_white.glsl b/src/lib/LightWorld/shaders/postshaders/black_and_white.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/black_and_white.glsl
rename to src/lib/LightWorld/shaders/postshaders/black_and_white.glsl
diff --git a/src/lib/shaders/postshaders/chromatic_aberration.glsl b/src/lib/LightWorld/shaders/postshaders/chromatic_aberration.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/chromatic_aberration.glsl
rename to src/lib/LightWorld/shaders/postshaders/chromatic_aberration.glsl
diff --git a/src/lib/shaders/postshaders/contrast.glsl b/src/lib/LightWorld/shaders/postshaders/contrast.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/contrast.glsl
rename to src/lib/LightWorld/shaders/postshaders/contrast.glsl
diff --git a/src/lib/shaders/postshaders/curvature.glsl b/src/lib/LightWorld/shaders/postshaders/curvature.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/curvature.glsl
rename to src/lib/LightWorld/shaders/postshaders/curvature.glsl
diff --git a/src/lib/shaders/postshaders/edges.glsl b/src/lib/LightWorld/shaders/postshaders/edges.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/edges.glsl
rename to src/lib/LightWorld/shaders/postshaders/edges.glsl
diff --git a/src/lib/shaders/postshaders/four_colors.glsl b/src/lib/LightWorld/shaders/postshaders/four_colors.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/four_colors.glsl
rename to src/lib/LightWorld/shaders/postshaders/four_colors.glsl
diff --git a/src/lib/shaders/postshaders/hdr_tv.glsl b/src/lib/LightWorld/shaders/postshaders/hdr_tv.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/hdr_tv.glsl
rename to src/lib/LightWorld/shaders/postshaders/hdr_tv.glsl
diff --git a/src/lib/shaders/postshaders/monochrome.glsl b/src/lib/LightWorld/shaders/postshaders/monochrome.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/monochrome.glsl
rename to src/lib/LightWorld/shaders/postshaders/monochrome.glsl
diff --git a/src/lib/shaders/postshaders/phosphor.glsl b/src/lib/LightWorld/shaders/postshaders/phosphor.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/phosphor.glsl
rename to src/lib/LightWorld/shaders/postshaders/phosphor.glsl
diff --git a/src/lib/shaders/postshaders/phosphorish.glsl b/src/lib/LightWorld/shaders/postshaders/phosphorish.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/phosphorish.glsl
rename to src/lib/LightWorld/shaders/postshaders/phosphorish.glsl
diff --git a/src/lib/shaders/postshaders/pip.glsl b/src/lib/LightWorld/shaders/postshaders/pip.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/pip.glsl
rename to src/lib/LightWorld/shaders/postshaders/pip.glsl
diff --git a/src/lib/shaders/postshaders/pixellate.glsl b/src/lib/LightWorld/shaders/postshaders/pixellate.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/pixellate.glsl
rename to src/lib/LightWorld/shaders/postshaders/pixellate.glsl
diff --git a/src/lib/shaders/postshaders/radialblur.glsl b/src/lib/LightWorld/shaders/postshaders/radialblur.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/radialblur.glsl
rename to src/lib/LightWorld/shaders/postshaders/radialblur.glsl
diff --git a/src/lib/shaders/postshaders/scanlines.glsl b/src/lib/LightWorld/shaders/postshaders/scanlines.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/scanlines.glsl
rename to src/lib/LightWorld/shaders/postshaders/scanlines.glsl
diff --git a/src/lib/shaders/postshaders/tilt_shift.glsl b/src/lib/LightWorld/shaders/postshaders/tilt_shift.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/tilt_shift.glsl
rename to src/lib/LightWorld/shaders/postshaders/tilt_shift.glsl
diff --git a/src/lib/shaders/postshaders/waterpaint.glsl b/src/lib/LightWorld/shaders/postshaders/waterpaint.glsl
similarity index 100%
rename from src/lib/shaders/postshaders/waterpaint.glsl
rename to src/lib/LightWorld/shaders/postshaders/waterpaint.glsl
diff --git a/src/lib/shaders/reflection.glsl b/src/lib/LightWorld/shaders/reflection.glsl
similarity index 100%
rename from src/lib/shaders/reflection.glsl
rename to src/lib/LightWorld/shaders/reflection.glsl
diff --git a/src/lib/shaders/refraction.glsl b/src/lib/LightWorld/shaders/refraction.glsl
similarity index 100%
rename from src/lib/shaders/refraction.glsl
rename to src/lib/LightWorld/shaders/refraction.glsl
diff --git a/src/lib/stencils.lua b/src/lib/LightWorld/stencils.lua
similarity index 100%
rename from src/lib/stencils.lua
rename to src/lib/LightWorld/stencils.lua
diff --git a/src/lib/util.lua b/src/lib/LightWorld/util.lua
similarity index 100%
rename from src/lib/util.lua
rename to src/lib/LightWorld/util.lua
diff --git a/src/lib/vector.lua b/src/lib/LightWorld/vector.lua
similarity index 100%
rename from src/lib/vector.lua
rename to src/lib/LightWorld/vector.lua