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21 lines
578 B
Go
21 lines
578 B
Go
package geo
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import (
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"math"
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)
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// Returns the distance between two 2D vectors.
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func DistanceVec2(a, b Vec2) float64 {
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return math.Sqrt(float64((a.X-b.X)*(a.X-b.X) + (a.Y-b.Y)*(a.Y-b.Y)))
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}
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// Returns the distance between two 3D vectors.
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func DistanceVec3(a, b Vec3) float64 {
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return math.Sqrt(float64((a.X-b.X)*(a.X-b.X) + (a.Y-b.Y)*(a.Y-b.Y) + (a.Z-b.Z)*(a.Z-b.Z)))
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}
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// Returns the distance between two 4D vectors.
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func DistanceVec4(a, b Vec4) float64 {
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return math.Sqrt(float64((a.X-b.X)*(a.X-b.X) + (a.Y-b.Y)*(a.Y-b.Y) + (a.Z-b.Z)*(a.Z-b.Z) + (a.W-b.W)*(a.W-b.W)))
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}
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