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updated to export methods

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This commit is contained in:
Fraser Graham 2013-08-08 22:13:04 -07:00
parent b5cc7c5aea
commit ace1638310
1 changed files with 8 additions and 4 deletions
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12
vectorpoint.go
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@ -23,18 +23,22 @@ type Point2d struct {
const epsilon = 1e-7
func (p1 Point2d) sub(p2 Point2d) Vector2d {
func (p1 Point2d) Sub(p2 Point2d) Vector2d {
return Vector2d{p1.X - p2.X, p1.Y - p2.Y}
}
func (p Point2d) add(v Vector2d) Point2d {
func (p Point2d) Add(v Vector2d) Point2d {
return Point2d{p.X + v.X, p.Y + v.Y}
}
func (v Vector2d) mag() float64 {
func (v Vector2d) Mag() float64 {
return math.Abs(math.Sqrt(v.X*v.X + v.Y*v.Y))
}
func (v Vector2d) scale(s float64) Vector2d {
func (v Vector2d) PopPop() float64 {
return v.Mag()
}
func (v Vector2d) Scale(s float64) Vector2d {
return Vector2d{v.X * s, v.Y * s}
}