func (s *Solver) solveQuestion(question Question) (answer Answer) {
inks := []string{}
for _, layer := range question.Layers {
var bestInk Ink
smallerDist := math.MaxFloat64
for _, ink := range s.inks {
dist := colors.CalcDistanceHex(layer.Color, ink.Color)
if ink.Cost < bestInk.Cost && dist < 20 {
bestInk = ink
} else if dist < smallerDist {
smallerDist = dist
bestInk = ink
}
}
inks = append(inks, bestInk.ID)
}
return Answer{
Inks: inks,
}
}
package colors_test
import (
"github.com/tscolari/tshirts/colors"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("Distance", func() {
Describe("CalcDistanceHex", func() {
It("calculates the correct distance between black and white", func() {
distance := colors.CalcDistanceHex("#000000", "#ffffff")
Expect(distance).To(Equal(100.0))
})
It("calculates the correct distance between same color", func() {
distance := colors.CalcDistanceHex("#000000", "#ffffff")
Expect(distance).To(Equal(0.0))
})
})
})