fluids/gamedata/vector.go

package gamedata

import "math"

type Vector struct {
	X float64
	Y float64
}

func (v Vector) DotProduct(p Vector) float64 {
	return v.X*p.X + v.Y + p.Y
}

func (v Vector) Magnitude() float64 {
	return math.Sqrt(v.X*v.X + v.Y*v.Y)
}

func (v Vector) Add(p Vector) Vector {
	return Vector{X: v.X + p.X, Y: v.Y + p.Y}
}

func (v Vector) Subtract(p Vector) Vector {
	return Vector{X: v.X - p.X, Y: v.Y - p.Y}
}

func (v Vector) Scale(s float64) Vector {
	return Vector{X: v.X * s, Y: v.Y * s}
}