package astar0

import "fmt"

const (
	statusClose  int32 = -1
	statusNormal int32 = 0
	statusOpen   int32 = 1
)

type Node struct {
	parent *Node
	x      int32
	y      int32
	f      int32
	g      int32
	h      int32
	value  int32
	status int32
}

func (p *Node) X() int32 {
	return p.x
}

func (p *Node) Y() int32 {
	return p.y
}

func (p *Node) Value() int32 {
	return p.value
}

func (p *Node) Status() int32 {
	return p.status
}

func (p *Node) String() string {
	return fmt.Sprintf("(%d,%d)", p.x, p.y)
}

func (p *Node) Clean() {
	p.parent = nil
	p.f = 0
	p.g = 0
	p.h = 0
	p.status = statusNormal
}

func (p *Node) IsClose() bool {
	return p.status == statusClose
}

func (p *Node) IsOpen() bool {
	return p.status == statusOpen
}

func newNode(x, y, value int32) *Node {
	return &Node{
		x:      x,
		y:      y,
		value:  value,
		status: statusNormal,
	}
}