Fluid physics (#199)

* start implementing fluid physics

* Initial implementation of fluid pushing

* different travel function in water

* bubble columns

* jumping in water

* cleanup

* change ultrawarm to be required

* fix for clippy

1 files changed, 7 insertions, 0 deletions

diff --git a/azalea-client/src/packet_handling/game.rs b/azalea-client/src/packet_handling/game.rs
index d92f2464..0d5a6afe 100644
--- a/azalea-client/src/packet_handling/game.rs
+++ b/azalea-client/src/packet_handling/game.rs
@@ -500,6 +500,9 @@ pub fn process_packet_events(ecs: &mut World) {
                     **position = new_pos;
                 }
 
+                // old_pos is set to the current position when we're teleported
+                physics.set_old_pos(&position);
+
                 // send the relevant packets
 
                 send_packet_events.send(SendPacketEvent::new(
@@ -853,10 +856,14 @@ pub fn process_packet_events(ecs: &mut World) {
                         if new_pos != **position {
                             **position = new_pos;
                         }
+                        let position = *position;
                         let mut look_direction = entity.get_mut::<LookDirection>().unwrap();
                         if new_look_direction != *look_direction {
                             *look_direction = new_look_direction;
                         }
+                        // old_pos is set to the current position when we're teleported
+                        let mut physics = entity.get_mut::<Physics>().unwrap();
+                        physics.set_old_pos(&position);
                     }),
                 });