1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104

use crate::network::*;
use crate::packet::*;
use basin2_lib::result::*;
use bytes::BytesMut;

#[derive(PartialEq, Clone, Debug)]
pub struct PlayerCombatPacket {
    pub event: PlayerCombatPacketEvent,
    pub playerId: i32,
    pub killerId: i32,
    pub duration: i32,
    pub message: Option<ChatComponent>,
}

impl CodablePacket for PlayerCombatPacket {
    fn encode(self, buf: &mut BytesMut) {
        use PlayerCombatPacketEvent::*;

        buf.set_mc_var_int(self.event as i32);
        match self.event {
            EndCombat => {
                buf.set_mc_var_int(self.duration);
                buf.set_mc_i32(self.killerId);
            }
            EntityDied => {
                buf.set_mc_var_int(self.playerId);
                buf.set_mc_i32(self.killerId);
                buf.set_mc_chat_component(
                    self.message.unwrap_or(ChatComponent::from("".to_string())),
                );
            }
            _ => (),
        }
    }

    fn decode(buf: &mut BytesMut) -> Result<Self>
    where
        Self: Sized,
    {
        use PlayerCombatPacketEvent::*;

        let event: PlayerCombatPacketEvent = buf.get_mc_enum()?;
        let (playerId, killerId, duration, message) = match event {
            EndCombat => {
                let duration = buf.get_mc_var_int()?;
                let killerId = buf.get_mc_i32()?;
                (0, killerId, duration, None)
            }
            EntityDied => (
                buf.get_mc_var_int()?,
                buf.get_mc_i32()?,
                0,
                Some(buf.get_mc_chat_component()?),
            ),
            EnterCombat => (0, 0, 0, None),
        };
        return Ok(PlayerCombatPacket {
            event,
            playerId,
            killerId,
            duration,
            message,
        });
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::packet::test::*;

    #[test]
    fn test_cycle_end() -> Result<()> {
        cycle(PlayerCombatPacket {
            event: PlayerCombatPacketEvent::EndCombat,
            playerId: 0,
            killerId: 3453,
            duration: 65435,
            message: None,
        })
    }

    #[test]
    fn test_cycle_died() -> Result<()> {
        cycle(PlayerCombatPacket {
            event: PlayerCombatPacketEvent::EntityDied,
            playerId: 3453,
            killerId: 65435,
            duration: 0,
            message: Some(ChatComponent::from("test".to_string())),
        })
    }

    #[test]
    fn test_cycle_enter() -> Result<()> {
        cycle(PlayerCombatPacket {
            event: PlayerCombatPacketEvent::EnterCombat,
            playerId: 0,
            killerId: 0,
            duration: 0,
            message: None,
        })
    }
}