dragonfly: Migrate from df-mc/atomic to sync/atomic (df-mc#915)

go.mod

@@ -7,7 +7,6 @@ toolchain go1.22.1
 require (
 	github.com/brentp/intintmap v0.0.0-20190211203843-30dc0ade9af9
 	github.com/cespare/xxhash/v2 v2.2.0
-	github.com/df-mc/atomic v1.10.0
 	github.com/df-mc/goleveldb v1.1.9
 	github.com/df-mc/worldupgrader v1.0.16
 	github.com/go-gl/mathgl v1.1.0

go.sum

@@ -5,8 +5,6 @@ github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XL
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/df-mc/atomic v1.10.0 h1:0ZuxBKwR/hxcFGorKiHIp+hY7hgY+XBTzhCYD2NqSEg=
-github.com/df-mc/atomic v1.10.0/go.mod h1:Gw9rf+rPIbydMjA329Jn4yjd/O2c/qusw3iNp4tFGSc=
 github.com/df-mc/goleveldb v1.1.9 h1:ihdosZyy5jkQKrxucTQmN90jq/2lUwQnJZjIYIC/9YU=
 github.com/df-mc/goleveldb v1.1.9/go.mod h1:+NHCup03Sci5q84APIA21z3iPZCuk6m6ABtg4nANCSk=
 github.com/df-mc/worldupgrader v1.0.16 h1:3n9yvLFNCe8IDJnUEliTGbhDvV1frjtPX/y5zl3Q5EE=
@@ -56,8 +54,6 @@ github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.8.2 h1:+h33VjcLVPDHtOdpUCuF+7gSuG3yGIftsP1YvFihtJ8=
 github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
-go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=

server/block/ender_chest.go

@@ -1,13 +1,13 @@
 package block
 
 import (
-	"github.com/df-mc/atomic"
 	"github.com/df-mc/dragonfly/server/block/cube"
 	"github.com/df-mc/dragonfly/server/item"
 	"github.com/df-mc/dragonfly/server/item/inventory"
 	"github.com/df-mc/dragonfly/server/world"
 	"github.com/df-mc/dragonfly/server/world/sound"
 	"github.com/go-gl/mathgl/mgl64"
+	"sync/atomic"
 )
 
 // enderChestOwner represents an entity that has an ender chest inventory.
@@ -32,7 +32,7 @@ type EnderChest struct {
 
 // NewEnderChest creates a new initialised ender chest.
 func NewEnderChest() EnderChest {
-	return EnderChest{viewers: atomic.NewInt64(0)}
+	return EnderChest{}
 }
 
 // BreakInfo ...
@@ -75,7 +75,7 @@ func (c EnderChest) Activate(pos cube.Pos, _ cube.Face, _ *world.World, u item.U
 
 // AddViewer ...
 func (c EnderChest) AddViewer(w *world.World, pos cube.Pos) {
-	if c.viewers.Inc() == 1 {
+	if c.viewers.Add(1) == 1 {
 		c.open(w, pos)
 	}
 }
@@ -85,7 +85,7 @@ func (c EnderChest) RemoveViewer(w *world.World, pos cube.Pos) {
 	if c.viewers.Load() == 0 {
 		return
 	}
-	if c.viewers.Dec() == 0 {
+	if c.viewers.Add(-1) == 0 {
 		c.close(w, pos)
 	}
 }