37 lines
709 B
Go
37 lines
709 B
Go
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package fluid
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import "math"
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type FieldVector struct {
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X float32
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Y float32
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}
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func (v FieldVector) DotProduct(p FieldVector) float32 {
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return v.X*p.X + v.Y*p.Y
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}
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func (v FieldVector) Magnitude() float32 {
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return float32(math.Sqrt(float64(v.X*v.X + v.Y*v.Y)))
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}
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func (v FieldVector) Add(p FieldVector) FieldVector {
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return FieldVector{X: v.X + p.X, Y: v.Y + p.Y}
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}
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func (v FieldVector) Subtract(p FieldVector) FieldVector {
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return FieldVector{X: v.X - p.X, Y: v.Y - p.Y}
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}
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func (v FieldVector) Scale(s float32) FieldVector {
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return FieldVector{X: v.X * s, Y: v.Y * s}
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}
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func (v FieldVector) Normalize() FieldVector {
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mag := v.Magnitude()
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return FieldVector{
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X: v.X / mag,
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Y: v.Y / mag,
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}
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}
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