Rest of mesh management functions.

examples/resources/images/LICENCE

@@ -1,5 +1,6 @@
-Resource	Author				Licence		Source
-tiles.png	Chris Hamons (maintainer)	CC0		https://opengameart.org/content/dungeon-crawl-32x32-tiles
-apple.png	Jussi Viitala			CC0
-grass.png	Jussi Viitala			CC0
-snake.png	Jussi Viitala			CC0
+Resource				Author						Licence		Source
+tiles.png				Chris Hamons (maintainer) 	CC0			https://opengameart.org/content/dungeon-crawl-32x32-tiles
+arcade_platformerV2.png GrafxKid					CC0			https://opengameart.org/content/arcade-platformer-assets
+apple.png				Jussi Viitala				CC0
+grass.png				Jussi Viitala				CC0
+snake.png				Jussi Viitala				CC0

examples/resources/lib/vector2.lua

@@ -45,6 +45,8 @@ Vector2.meta = {
 function Vector2:new( x, y )
 	if type( x ) == "table" then
 		x, y = table.unpack( x )
+	elseif type( x ) == "nil" then
+		x, y = 0, 0
 	end
 
     local o = {

examples/resources/lib/vector3.lua

@@ -59,6 +59,8 @@ end
 function Vector3:set( x, y, z )
 	if type( x ) == "table" then
 		x, y, z = table.unpack( x )
+	elseif type( x ) == "nil" then
+		x, y, z = 0, 0, 0
 	end
 
 	self.x = x