96 lines
1.8 KiB
Go
96 lines
1.8 KiB
Go
package aoc
|
|
|
|
import (
|
|
"fmt"
|
|
"math"
|
|
"strings"
|
|
)
|
|
|
|
type Coordinate struct {
|
|
X, Y int
|
|
}
|
|
|
|
func NewCoordinate(x, y int) *Coordinate {
|
|
return &Coordinate{x, y}
|
|
}
|
|
|
|
func (c *Coordinate) North() Coordinate {
|
|
return Coordinate{X: c.X, Y: c.Y - 1}
|
|
}
|
|
func (c *Coordinate) East() Coordinate {
|
|
return Coordinate{X: c.X + 1, Y: c.Y}
|
|
}
|
|
func (c *Coordinate) South() Coordinate {
|
|
return Coordinate{X: c.X, Y: c.Y + 1}
|
|
}
|
|
func (c *Coordinate) West() Coordinate {
|
|
return Coordinate{X: c.X - 1, Y: c.Y}
|
|
}
|
|
func (c *Coordinate) NW() Coordinate {
|
|
return Coordinate{X: c.X - 1, Y: c.Y - 1}
|
|
}
|
|
func (c *Coordinate) NE() Coordinate {
|
|
return Coordinate{X: c.X + 1, Y: c.Y - 1}
|
|
}
|
|
func (c *Coordinate) SW() Coordinate {
|
|
return Coordinate{X: c.X - 1, Y: c.Y + 1}
|
|
}
|
|
func (c *Coordinate) SE() Coordinate {
|
|
return Coordinate{X: c.X + 1, Y: c.Y + 1}
|
|
}
|
|
|
|
func (c *Coordinate) GetNorthCoord() *Coordinate {
|
|
return &Coordinate{
|
|
X: c.X,
|
|
Y: c.Y - 1,
|
|
}
|
|
}
|
|
func (c *Coordinate) GetEastCoord() *Coordinate {
|
|
return &Coordinate{
|
|
X: c.X + 1,
|
|
Y: c.Y,
|
|
}
|
|
}
|
|
func (c *Coordinate) GetSouthCoord() *Coordinate {
|
|
return &Coordinate{
|
|
X: c.X,
|
|
Y: c.Y + 1,
|
|
}
|
|
}
|
|
func (c *Coordinate) GetWestCoord() *Coordinate {
|
|
return &Coordinate{
|
|
X: c.X - 1,
|
|
Y: c.Y,
|
|
}
|
|
}
|
|
|
|
func CoordinateFromString(str string) *Coordinate {
|
|
c := Coordinate{}
|
|
r := strings.NewReader(str)
|
|
_, err := fmt.Fscanf(r, "[%d, %d]", &c.X, &c.Y)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return &c
|
|
}
|
|
|
|
func (c Coordinate) Angle(t Coordinate) float64 {
|
|
ret := math.Atan2(float64(t.X-c.X), float64(c.Y-t.Y)) * 180 / math.Pi
|
|
if ret < 0 {
|
|
ret = ret + 360
|
|
}
|
|
return ret
|
|
}
|
|
|
|
func (c Coordinate) String() string {
|
|
return fmt.Sprintf("[%d, %d]", c.X, c.Y)
|
|
}
|
|
|
|
func (c Coordinate) Distance(t Coordinate) int {
|
|
return AbsInt(c.X-t.X) + AbsInt(c.Y-t.Y)
|
|
}
|
|
|
|
func (c Coordinate) Equals(c2 Coordinate) bool {
|
|
return c.X == c2.X && c.Y == c2.Y
|
|
}
|