Typo fixes

3 files changed, 4 insertions, 4 deletions

diff --git a/samples/04_physics_and_collisions/09_arbitrary_collision/app/linear_collider.rb b/samples/04_physics_and_collisions/09_arbitrary_collision/app/linear_collider.rb
index 9571669..679f3a4 100644
--- a/samples/04_physics_and_collisions/09_arbitrary_collision/app/linear_collider.rb
+++ b/samples/04_physics_and_collisions/09_arbitrary_collision/app/linear_collider.rb
@@ -82,7 +82,7 @@ class LinearCollider
     #if at least on point is in the rectangle then collision? is true - otherwise false
     for point in points
       #Check whether a given point lies inside a rectangle or not:
-      #if the sum of the area of traingls, PAB, PBC, PCD, PAD equal the area of the rec, then an intersection has occured
+      #if the sum of the area of traingls, PAB, PBC, PCD, PAD equal the area of the rec, then an intersection has occurred
       areaRec =  triArea.call(rpointA, rpointB, rpointC)+triArea.call(rpointA, rpointC, rpointD)
       areaSum = [
         triArea.call(point, rpointA, rpointB),triArea.call(point, rpointB, rpointC),
@@ -148,7 +148,7 @@ class LinearCollider
         perpVect = {x: perpVect.x*-1, y: perpVect.y*-1}
         yInterc = -INFINITY
       end
-    elsif previousPosition.y < slope*previousPosition.x + yInterc #check if ball is bellow or above the collider to determine if perpVect is - or +
+    elsif previousPosition.y < slope*previousPosition.x + yInterc #check if ball is below or above the collider to determine if perpVect is - or +
       perpVect = {x: perpVect.x*-1, y: perpVect.y*-1}
     end
 
diff --git a/samples/04_physics_and_collisions/09_arbitrary_collision/app/main.rb b/samples/04_physics_and_collisions/09_arbitrary_collision/app/main.rb
index b2905fb..228eb9d 100644
--- a/samples/04_physics_and_collisions/09_arbitrary_collision/app/main.rb
+++ b/samples/04_physics_and_collisions/09_arbitrary_collision/app/main.rb
@@ -29,7 +29,7 @@ end
 begin :default_methods
   def init_blocks args
     block_size = args.state.board_width / 8
-    #Space inbetween each block
+    #Space in between each block
     block_offset = 4
 
     args.state.squares ||=[
diff --git a/samples/04_physics_and_collisions/09_arbitrary_collision/app/vector2d.rb b/samples/04_physics_and_collisions/09_arbitrary_collision/app/vector2d.rb
index 9cb1954..0b302f3 100644
--- a/samples/04_physics_and_collisions/09_arbitrary_collision/app/vector2d.rb
+++ b/samples/04_physics_and_collisions/09_arbitrary_collision/app/vector2d.rb
@@ -42,7 +42,7 @@ class Vector2d
       Vector2d.new(@x/mag, @y/mag)
     end
   
-    #TODO delet?
+    #TODO delete?
     def distABS vect
       (((vect.x-@x)**2+(vect.y-@y)**2)**0.5).abs()
     end