4 files changed, 26 insertions, 6 deletions
diff --git a/examples/resources/lib/rectangle.lua b/examples/resources/lib/rectangle.lua
index 93f2bb3..dfdbef0 100644
--- a/examples/resources/lib/rectangle.lua
+++ b/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
diff --git a/examples/resources/lib/vector2.lua b/examples/resources/lib/vector2.lua
index e3df887..afb5fda 100644
--- a/examples/resources/lib/vector2.lua
+++ b/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 )
diff --git a/examples/resources/lib/vector3.lua b/examples/resources/lib/vector3.lua
index 7059690..1b5cdd3 100644
--- a/examples/resources/lib/vector3.lua
+++ b/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
diff --git a/examples/snake/main.lua b/examples/snake/main.lua
index 047cddf..a4086c1 100644
--- a/examples/snake/main.lua
+++ b/examples/snake/main.lua
@@ -175,14 +175,14 @@ end
 
 local function drawSnake()
 	for i, seg in ipairs( snake.segments ) do
-		local angle = -seg.heading:atan() + RL.PI / 2
+		local angle = seg.heading:atan2()
 		local source = Rect:new( 16, 0, 8, 8 )
 
 		if i == 1 then -- Tail segment. Yes tail is actually the 'first' segment.
 			source.x = 8
 
 			if 1 < #snake.segments then
-				angle = -snake.segments[ 2 ].heading:atan() + RL.PI / 2
+				angle = snake.segments[ 2 ].heading:atan2()
 			end
 		elseif i < #snake.segments and seg.heading ~= snake.segments[ i+1 ].heading then -- Turned middle segments.
 			source.x = 0
@@ -209,8 +209,7 @@ local function drawSnake()
 		)
 	end
 	-- Let's draw the head last to keep it on top.
-	-- local angle = -math.atan2( snake.heading.x, snake.heading.y ) + RL.PI / 2
-	local angle = -snake.heading:atan() + RL.PI / 2
+	local angle = snake.heading:atan2()
 	RL.DrawTexturePro(
 		snakeTexture,
 		{ 24, 0, 8, 8 },