35 lines
969 B
Go
35 lines
969 B
Go
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package session
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import (
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"fmt"
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"github.com/df-mc/dragonfly/server/world"
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"github.com/sandertv/gophertunnel/minecraft/protocol/packet"
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"sync/atomic"
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)
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// ServerBoundLoadingScreenHandler handles loading screen updates from the clients. It is used to ensure that
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// the server knows when the client is loading a screen, and when it is done loading it.
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type ServerBoundLoadingScreenHandler struct {
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currentID atomic.Uint32
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expectedID atomic.Uint32
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}
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// Handle ...
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func (h *ServerBoundLoadingScreenHandler) Handle(p packet.Packet, s *Session, _ *world.Tx, _ Controllable) error {
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pk := p.(*packet.ServerBoundLoadingScreen)
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v, ok := pk.LoadingScreenID.Value()
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expected := h.expectedID.Load()
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switch {
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case !ok || expected == 0:
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return nil
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case v != expected:
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return fmt.Errorf("expected loading screen ID %d, got %d", expected, v)
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case pk.Type == packet.LoadingScreenTypeEnd:
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s.changingDimension.Store(false)
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h.expectedID.Store(0)
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}
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return nil
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}
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