移除辐射图,更改为分布图,优化分布图实现

This commit is contained in:
kercylan98 2023-06-13 11:57:41 +08:00
parent 98fde32fb5
commit f3af67ff66
6 changed files with 141 additions and 206 deletions

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@ -0,0 +1,108 @@
package dp
import (
"github.com/kercylan98/minotaur/utils/g2d"
"github.com/kercylan98/minotaur/utils/hash"
)
// NewDistributionPattern 构建一个分布图实例
func NewDistributionPattern[Item any](sameKindVerifyHandle func(itemA, itemB Item) bool) *DistributionPattern[Item] {
return &DistributionPattern[Item]{
links: map[int]map[int]Item{},
sameKindVerifyHandle: sameKindVerifyHandle,
}
}
// DistributionPattern 分布图
type DistributionPattern[Item any] struct {
matrix []Item
links map[int]map[int]Item
sameKindVerifyHandle func(itemA, itemB Item) bool
width int
usePos bool
}
// LoadMatrix 通过二维矩阵加载分布图
// - 通过该函数加载的分布图使用的矩阵是复制后的矩阵,因此无法直接通过刷新(Refresh)来更新分布关系
// - 需要通过直接刷新的方式请使用 LoadMatrixWithPos
func (slf *DistributionPattern[Item]) LoadMatrix(matrix [][]Item) {
slf.LoadMatrixWithPos(g2d.MatrixToPosMatrix(matrix))
slf.usePos = false
}
// LoadMatrixWithPos 通过二维矩阵加载分布图
func (slf *DistributionPattern[Item]) LoadMatrixWithPos(width int, matrix []Item) {
slf.width = width
slf.matrix = matrix
slf.usePos = true
for k := range slf.links {
delete(slf.links, k)
}
for pos, item := range slf.matrix {
slf.buildRelationships(pos, item)
}
}
// Refresh 刷新特定位置的分布关系
// - 由于 LoadMatrix 的矩阵是复制后的矩阵,所以任何外部的改动都不会影响到分布图的变化,在这种情况下,刷新将没有任何意义
// - 需要通过直接刷新的方式请使用 LoadMatrixWithPos 加载矩阵,或者通过 RefreshWithItem 函数进行刷新
func (slf *DistributionPattern[Item]) Refresh(pos int) {
if !slf.usePos {
return
}
links, exist := slf.links[pos]
if !exist {
slf.buildRelationships(pos, slf.matrix[pos])
return
}
temp := hash.Copy(links)
for tp := range links {
delete(slf.links, tp)
}
for tp, target := range temp {
slf.buildRelationships(tp, target)
}
}
// RefreshWithItem 通过特定的成员刷新特定位置的分布关系
// - 如果矩阵通过 LoadMatrixWithPos 加载,将会重定向至 Refresh
func (slf *DistributionPattern[Item]) RefreshWithItem(pos int, item Item) {
if slf.usePos {
slf.Refresh(pos)
return
}
slf.matrix[pos] = item
links, exist := slf.links[pos]
if !exist {
slf.buildRelationships(pos, slf.matrix[pos])
return
}
temp := hash.Copy(links)
for tp := range links {
delete(slf.links, tp)
}
for tp, target := range temp {
slf.buildRelationships(tp, target)
}
}
// 构建关系
func (slf *DistributionPattern[Item]) buildRelationships(pos int, item Item) {
links, exist := slf.links[pos]
if !exist {
links = map[int]Item{pos: item}
slf.links[pos] = links
}
for _, tp := range g2d.GetAdjacentCoordinatesWithPos(slf.matrix, slf.width, pos) {
target := slf.matrix[tp]
if _, exist := links[tp]; exist || !slf.sameKindVerifyHandle(item, target) {
continue
}
slf.links[tp] = links
links[tp] = target
slf.buildRelationships(tp, target)
}
}

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@ -0,0 +1,20 @@
package dp
import (
"fmt"
"testing"
)
func TestNewDistributionPattern(t *testing.T) {
dp := NewDistributionPattern[int](func(itemA, itemB int) bool {
return itemA == itemB
})
matrix := []int{1, 1, 2, 2, 2, 2, 1, 2, 2}
dp.LoadMatrixWithPos(3, matrix)
for pos, link := range dp.links {
fmt.Println(pos, link, fmt.Sprintf("%p", link))
}
}

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@ -90,3 +90,16 @@ func PosToCoordinateX(width, pos int) int {
func PosToCoordinateY(width, pos int) int {
return pos / width
}
// MatrixToPosMatrix 将二维矩阵转换为顺序的二维矩阵
func MatrixToPosMatrix[V any](matrix [][]V) (width int, posMatrix []V) {
width = len(matrix)
height := len(matrix[0])
posMatrix = make([]V, width*height)
for x := 0; x < width; x++ {
for y := 0; y < height; y++ {
posMatrix[CoordinateToPos(width, x, y)] = matrix[x][y]
}
}
return
}

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@ -1,186 +0,0 @@
package g2d
import (
"github.com/kercylan98/minotaur/utils/hash"
"github.com/kercylan98/minotaur/utils/synchronization"
"sync"
)
func NewRadiationPattern[ItemType comparable, Item RadiationPatternItem[ItemType]](matrix [][]Item, options ...RadiationPatternOption[ItemType, Item]) *RadiationPattern[ItemType, Item] {
var clone = make([][]Item, len(matrix))
for x := 0; x < len(matrix); x++ {
ys := make([]Item, len(matrix[0]))
for y := 0; y < len(matrix[0]); y++ {
ys[y] = matrix[x][y]
}
clone[x] = ys
}
rp := &RadiationPattern[ItemType, Item]{
matrix: clone,
links: synchronization.NewMap[int64, map[int64]bool](),
positions: map[int64][2]int{},
nils: map[int]map[int]bool{},
}
for _, option := range options {
option(rp)
}
for x := 0; x < len(matrix); x++ {
rp.nils[x] = map[int]bool{}
}
for x := 0; x < len(matrix); x++ {
for y := 0; y < len(matrix[0]); y++ {
item := matrix[x][y]
if rp.excludes[item.GetType()] {
continue
}
rp.positions[item.GetGuid()] = CoordinateToCoordinateArray(x, y)
rp.searchNeighbour(x, y, synchronization.NewMap[int64, bool](), synchronization.NewMap[int64, bool]())
}
}
return rp
}
// RadiationPattern 辐射图数据结构
// - 辐射图用于将一个二维数组里相邻的所有类型相同的成员进行标注
type RadiationPattern[ItemType comparable, Item RadiationPatternItem[ItemType]] struct {
matrix [][]Item
links *synchronization.Map[int64, map[int64]bool] // 成员类型相同且相连的链接
positions map[int64][2]int // 根据成员guid记录的成员位置
nils map[int]map[int]bool // 空位置
excludes map[ItemType]bool // 排除建立关系的类型
}
// GetLinks 获取特定成员能够辐射到的所有成员
func (slf *RadiationPattern[ItemType, Item]) GetLinks(guid int64) []int64 {
return hash.KeyToSlice(slf.links.Get(guid))
}
// GetLinkPositions 获取特定成员能够辐射到的所有成员位置
func (slf *RadiationPattern[ItemType, Item]) GetLinkPositions(guid int64) [][2]int {
links := slf.links.Get(guid)
var result = make([][2]int, 0, len(links))
for g := range links {
result = append(result, slf.positions[g])
}
return result
}
// GetPosition 获取特定成员的位置
func (slf *RadiationPattern[ItemType, Item]) GetPosition(guid int64) [2]int {
return slf.positions[guid]
}
// Remove 移除特定位置的辐射信息
func (slf *RadiationPattern[ItemType, Item]) Remove(x, y int) {
old := slf.matrix[x][y]
oldGuid := old.GetGuid()
for linkGuid := range slf.links.Get(oldGuid) {
xy := slf.positions[linkGuid]
slf.searchNeighbour(xy[0], xy[1], synchronization.NewMap[int64, bool](), synchronization.NewMap[int64, bool]())
}
slf.links.Delete(oldGuid)
delete(slf.positions, oldGuid)
slf.nils[x][y] = true
}
// Refresh 刷新特定位置成员并且更新其辐射信息
func (slf *RadiationPattern[ItemType, Item]) Refresh(x, y int, item Item) {
if slf.excludes[item.GetType()] {
return
}
slf.Remove(x, y)
slf.nils[x][y] = false
slf.matrix[x][y] = item
slf.positions[item.GetGuid()] = CoordinateToCoordinateArray(x, y)
slf.searchNeighbour(x, y, synchronization.NewMap[int64, bool](), synchronization.NewMap[int64, bool]())
}
// RefreshBySwap 通过交换的方式刷新两个成员的辐射信息
func (slf *RadiationPattern[ItemType, Item]) RefreshBySwap(x1, y1, x2, y2 int, item1, item2 Item) {
var xys = [][2]int{CoordinateToCoordinateArray(x1, y1), CoordinateToCoordinateArray(x2, y2)}
for _, xy := range xys {
x, y := CoordinateArrayToCoordinate(xy)
slf.Remove(x, y)
}
for i, item := range []Item{item1, item2} {
if slf.excludes[item.GetType()] {
continue
}
x, y := CoordinateArrayToCoordinate(xys[i])
slf.nils[x][y] = false
slf.matrix[x][y] = item
slf.positions[item.GetGuid()] = CoordinateToCoordinateArray(x, y)
slf.searchNeighbour(x, y, synchronization.NewMap[int64, bool](), synchronization.NewMap[int64, bool]())
}
}
func (slf *RadiationPattern[ItemType, Item]) searchNeighbour(x, y int, filter *synchronization.Map[int64, bool], childrenLinks *synchronization.Map[int64, bool]) {
var item = slf.matrix[x][y]
if slf.excludes[item.GetType()] {
return
}
var (
neighboursLock sync.Mutex
neighbours = map[int64]bool{}
itemType = item.GetType()
wait sync.WaitGroup
itemGuid = item.GetGuid()
handle = func(x, y int) bool {
neighbour := slf.matrix[x][y]
nt := neighbour.GetType()
if slf.excludes[nt] || nt != itemType || slf.nils[x][y] {
return false
}
neighbourGuid := neighbour.GetGuid()
neighboursLock.Lock()
neighbours[neighbourGuid] = true
neighboursLock.Unlock()
childrenLinks.Set(neighbourGuid, true)
slf.searchNeighbour(x, y, filter, childrenLinks)
return true
}
)
if filter.Get(itemGuid) {
return
}
filter.Set(itemGuid, true)
wait.Add(4)
go func() {
for sy := y - 1; sy >= 0; sy-- {
if !handle(x, sy) {
break
}
}
wait.Done()
}()
go func() {
for sy := y + 1; sy < len(slf.matrix[0]); sy++ {
if !handle(x, sy) {
break
}
}
wait.Done()
}()
go func() {
for sx := x - 1; sx >= 0; sx-- {
if !handle(sx, y) {
break
}
}
wait.Done()
}()
go func() {
for sx := x + 1; sx < len(slf.matrix); sx++ {
if !handle(sx, y) {
break
}
}
wait.Done()
}()
wait.Wait()
childrenLinks.Range(func(key int64, value bool) {
neighbours[key] = value
})
slf.links.Set(itemGuid, neighbours)
}

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@ -1,6 +0,0 @@
package g2d
type RadiationPatternItem[Type comparable] interface {
GetGuid() int64
GetType() Type
}

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@ -1,14 +0,0 @@
package g2d
type RadiationPatternOption[ItemType comparable, Item RadiationPatternItem[ItemType]] func(rp *RadiationPattern[ItemType, Item])
func WithRadiationPatternExclude[ItemType comparable, Item RadiationPatternItem[ItemType]](itemType ...ItemType) RadiationPatternOption[ItemType, Item] {
return func(rp *RadiationPattern[ItemType, Item]) {
if rp.excludes == nil {
rp.excludes = map[ItemType]bool{}
}
for _, t := range itemType {
rp.excludes[t] = true
}
}
}