Rework Buoyancy physicsduso-water-touchups

Simplify creating a buoyant object to just extending a class and setting the water plane.
Implement a new buoyancy estimation that should be a bit more accurate.

1 files changed, 2 insertions, 2 deletions

diff --git a/Ship.gd b/Ship.gd
index feb5ad2..db200bd 100644
--- a/Ship.gd
+++ b/Ship.gd
@@ -1,4 +1,4 @@
-extends RigidBody
+extends BuoyantBody
 
 export var ang_acceleration = 240.0
 
@@ -29,4 +29,4 @@ func _input(event):
 func _integrate_forces(_state):
     var stick = Input.get_axis("ship_right","ship_left")
     if stick != 0.0:
-        self.add_torque(Vector3.UP*stick*ang_acceleration)
+        self.add_torque(Vector3.UP*stick*ang_acceleration*self.mass)