player/handler.go: Pass player to HandleWorldChange.

server/player/handler.go

@@ -26,7 +26,7 @@ type Handler interface {
 	// HandleTeleport handles the teleportation of a player. ctx.Cancel() may be called to cancel it.
 	HandleTeleport(ctx *Context, pos mgl64.Vec3)
 	// HandleChangeWorld handles when the player is added to a new world. before may be nil.
-	HandleChangeWorld(before, after *world.World)
+	HandleChangeWorld(p *Player, before, after *world.World)
 	// HandleToggleSprint handles when the player starts or stops sprinting.
 	// After is true if the player is sprinting after toggling (changing their sprinting state).
 	HandleToggleSprint(ctx *Context, after bool)
@@ -166,7 +166,7 @@ func (NopHandler) HandleHeldSlotChange(*Context, int, int)
 func (NopHandler) HandleMove(*Context, mgl64.Vec3, cube.Rotation)                          {}
 func (NopHandler) HandleJump(*Player)                                                      {}
 func (NopHandler) HandleTeleport(*Context, mgl64.Vec3)                                     {}
-func (NopHandler) HandleChangeWorld(*world.World, *world.World)                            {}
+func (NopHandler) HandleChangeWorld(*Player, *world.World, *world.World)                   {}
 func (NopHandler) HandleToggleSprint(*Context, bool)                                       {}
 func (NopHandler) HandleToggleSneak(*Context, bool)                                        {}
 func (NopHandler) HandleCommandExecution(*Context, cmd.Command, []string)                  {}

server/player/player.go

@@ -2355,7 +2355,7 @@ func (p *Player) Tick(tx *world.Tx, current int64) {
 	}
 
 	if p.prevWorld != tx.World() && p.prevWorld != nil {
-		p.Handler().HandleChangeWorld(p.prevWorld, tx.World())
+		p.Handler().HandleChangeWorld(p, p.prevWorld, tx.World())
 		p.prevWorld = tx.World()
 	}