18 lines
423 B
Go
18 lines
423 B
Go
package mathx
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import "testing"
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func TestQuatLookDir(t *testing.T) {
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for _, d := range []Vec3{
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{Z: -1}, {X: 1}, {X: -2, Y: 1, Z: 3}, {Y: -2, Z: -6}, {X: 0.3, Y: 0.9, Z: -0.1},
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} {
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got := QuatLookDir(d).Rotate(Vec3{Z: -1})
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if !got.NearlyEqual(d.Normalized(), 1e-5) {
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t.Fatalf("look %v -> forward %v", d, got)
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}
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}
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if QuatLookDir(Vec3{}) != QuatIdentity() {
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t.Fatal("zero direction must give identity")
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}
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}
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