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Type:
Bug
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Resolution: Fixed
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Priority:
Minor
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None
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Affects Version/s: None
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None
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Environment:
git-Spigot-5f38d38-18fbb24
Cancelling the PlayerInteractEvent when a player right clicks a CAKE_BLOCK messes up the client side hunger bar.
On the server the hunger does not go up, but on the client the hunger bar shows it goes up. After the next food level change the client hunger goes back to matching the server's copy.
Test Code:
@EventHandler
public void onEatCake(PlayerInteractEvent event) {
if (event.getAction().equals(Action.RIGHT_CLICK_BLOCK)) {
if (event.getClickedBlock().getType().equals(Material.CAKE_BLOCK)) {
event.setCancelled(true);
event.getPlayer().sendMessage("Cancelled Event.");
}
}
}
More information: Sending an update_health packet with the current food level seems to force fix the issue, somewhat. The client still shows the hunger go up for a split second until the packet is received then it goes back to normal.
Example code (using ProtocolLib)
@EventHandler
public void onEatCake(PlayerInteractEvent event) {
if (event.getAction().equals(Action.RIGHT_CLICK_BLOCK)) {
if (event.getClickedBlock().getType().equals(Material.CAKE_BLOCK)) {
event.setCancelled(true);
event.getPlayer().sendMessage("Cancelled Event.");
PacketContainer packet = new PacketContainer(PacketType.Play.Server.UPDATE_HEALTH);
packet.getFloat().write(0, (float) player.getHealth());
packet.getIntegers().write(0, player.getFoodLevel());
packet.getFloat().write(1, player.getSaturation());
try {
ProtocolLibrary.getProtocolManager().sendServerPacket(event.getPlayer(), packet);
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
}
}
