removed unused functions

1 files changed, 2 insertions, 45 deletions

diff --git a/vector2D.go b/vector2D.go
index 6f49582..8c9f126 100644
--- a/vector2D.go
+++ b/vector2D.go
@@ -1,15 +1,11 @@
 package structs
 
-import (
-	"math"
-)
-
 type Vec2 struct {
 	X float64 `json:"X"`
 	Y float64 `json:"Y"`
 }
 
-// newVec2 returns a new Vec2 using the given coordinates
+// NewVec2 returns a new Vec2 using the given coordinates
 func NewVec2(x float64, y float64) Vec2 {
 	return Vec2{
 		X: x,
@@ -17,56 +13,17 @@ func NewVec2(x float64, y float64) Vec2 {
 	}
 }
 
-// creates a copy of the vector
+// Copy creates a copy of the vector
 func (v *Vec2) Copy() Vec2 {
 	return Vec2{v.X, v.Y}
 }
 
-func (v *Vec2) Split() (x float64, y float64) {
-	return v.X, v.Y
-}
-
-// changes the length of the vector to the length l
-func (v *Vec2) SetLength(l float64) {
-	var k = l / v.GetLength()
-	var newV = v.Multiply(k)
-	//	v = newV
-	v.X, v.Y = newV.Split()
-}
-
-// changes the length of the vector to the length 1
-func (v *Vec2) SetLengthOne() {
-	v.SetLength(1)
-}
-
-// returns the direction Vector of this vector. This means a copy of this vector with a length of 1
-func (v *Vec2) GetDirVector() Vec2 {
-	var dirV = v.Copy()
-	dirV.SetLengthOne()
-	return dirV
-}
-
-// returns the length of the vector
-func (v *Vec2) GetLength() float64 {
-	return math.Sqrt(math.Pow(v.X, 2) + math.Pow(v.Y, 2))
-}
-
 // returns the product of the vector and a scalar s
 func (v *Vec2) Multiply(s float64) Vec2 {
 	return Vec2{v.X * s, v.Y * s}
 }
 
-// returns the quotient of the vector and a scalar s
-func (v *Vec2) Divide(s float64) Vec2 {
-	return Vec2{v.X / s, v.Y / s}
-}
-
 // returns the sum of this vector and the vector v2
 func (v1 *Vec2) Add(v2 Vec2) Vec2 {
 	return Vec2{v1.X + v2.X, v1.Y + v2.Y}
 }
-
-// returns the difference of this vector minus the vector v2
-func (v1 *Vec2) Subtract(v2 Vec2) Vec2 {
-	return Vec2{v1.X - v2.X, v1.Y - v2.Y}
-}