moved shapes example from main to its own directory (2c6716e4) · Commits · bsmrgo / playground

cmd/shapes/main.go

+2 −53

Original line number	Diff line number	Diff line
		@@ -2,61 +2,10 @@ package main

		import (
		"fmt"
		"math"
		)

		// Shaper ...
		type Shaper interface {
		Area() float64
		Perim() float64
		}

		// Rect ...
		type Rect struct {
		Width, Height float64
		}

		// Area ...
		func (r Rect) Area() float64 {
		return r.Width * r.Height
		}

		// Perim ...
		func (r Rect) Perim() float64 {
		return 2 * r.Width + 2 * r.Height
		}

		func (r Rect) String() string {
		return fmt.Sprintf("rect: %f * %f", r.Width, r.Height)
		}

		// Circle ...
		type Circle struct {
		Radius float64
		}

		// Area ...
		func (c Circle) Area() float64 {
		return math.Pi * c.Radius * c.Radius
		}

		// Perim ...
		func (c Circle) Perim() float64 {
		return 2 * math.Pi * c.Radius
		}

		func (c Circle) String() string {
		return fmt.Sprintf("circle: %f", c.Radius)
		}

		func main() {
		shapes := []Shaper{
		Rect{Width: 4, Height: 3},
		Circle{Radius: 5},
		}
		for i, s := range shapes {
		fmt.Printf("[%d] %s: area is %f - perim is %f\n", i, s, s.Area(), s.Perim())
		}
		fmt.Println("Hello")
		}

		// End Of File

0 → 100644

+50 −0

Original line number	Diff line number	Diff line
		package shapes

		import (
		"fmt"
		"math"
		)

		// Shaper ...
		type Shaper interface {
		Area() float64
		Perim() float64
		}

		// Rect ...
		type Rect struct {
		Width, Height float64
		}

		// Area ...
		func (r Rect) Area() float64 {
		return r.Width * r.Height
		}

		// Perim ...
		func (r Rect) Perim() float64 {
		return 2 * r.Width + 2 * r.Height
		}

		func (r Rect) String() string {
		return fmt.Sprintf("rect: %f * %f", r.Width, r.Height)
		}

		// Circle ...
		type Circle struct {
		Radius float64
		}

		// Area ...
		func (c Circle) Area() float64 {
		return math.Pi * c.Radius * c.Radius
		}

		// Perim ...
		func (c Circle) Perim() float64 {
		return 2 * math.Pi * c.Radius
		}

		func (c Circle) String() string {
		return fmt.Sprintf("circle: %f", c.Radius)
		}

0 → 100644

+15 −0

Original line number	Diff line number	Diff line
		package shapes

		import (
		"testing"
		)

		func TestShapes(t *testing.T){
		shapes := []Shaper{
		Rect{Width: 4, Height: 3},
		Circle{Radius: 5},
		}
		for i, s := range shapes {
		t.Logf("[%d] %s: area is %f - perim is %f\n", i, s, s.Area(), s.Perim())
		}
		}
		No newline at end of file