Fixed snake example after Vector2Angle change.

examples/resources/lib/rectangle.lua

@@ -110,6 +110,7 @@ function Rectangle:area()
 	return self.width * self.height
 end
 
+--- Returns rectangle that fits both rectangles inside it
 function Rectangle:fit( rec )
 	local pos = Vector2:new( math.min( self.x, rec.x ), math.min( self.y, rec.y ) )
 
@@ -121,6 +122,12 @@ function Rectangle:fit( rec )
 	)
 end
 
+--- If rectangle is fully inside another rectangle
+function Rectangle:isInside( rect )
+	return rect.x <= self.x and self.x + self.width <= rect.x + rect.width
+	and rect.y <= self.y and self.y + self.height <= rect.y + rect.height
+end
+
 function Rectangle:checkCollisionRec( rec )
 	return RL.CheckCollisionRecs( self, rec )
 end

examples/resources/lib/vector2.lua

@@ -130,8 +130,8 @@ function Vector2:lineAngle( v2 )
 	return RL.Vector2LineAngle( self, v2 )
 end
 
-function Vector2:atan()
-	return math.atan( self.x, self.y )
+function Vector2:atan2()
+	return math.atan( self.y, self.x )
 end
 
 function Vector2:scale( scale )

examples/resources/lib/vector3.lua

@@ -3,6 +3,8 @@ if table.unpack == nil then
 	table.unpack = unpack
 end
 
+local Vector2 = require( "vector2" )
+
 Vector3 = {}
 Vector3.meta = {
 	__index = Vector3,
@@ -78,6 +80,18 @@ function Vector3:clone()
 	return Vector3:new( self.x, self.y, self.z )
 end
 
+function Vector3:getVectorXY()
+	return Vector2:new( self.x, self.y )
+end
+
+function Vector3:getVectorXZ()
+	return Vector2:new( self.x, self.z )
+end
+
+function Vector3:getVectorZY()
+	return Vector2:new( self.z, self.y )
+end
+
 function Vector3:abs()
 	return Vector3:new( math.abs( self.x ), math.abs( self.y ), math.abs( self.z ) )
 end