Move neighbor_pressure to shared fluid file

Author: efaulhaber

src/schemes/fluid/fluid.jl

@@ -186,6 +186,17 @@ end
     return dv
 end
 
+@propagate_inbounds function neighbor_pressure(v_neighbor_system, neighbor_system,
+                                               neighbor, p_a)
+    return current_pressure(v_neighbor_system, neighbor_system, neighbor)
+end
+
+@inline function neighbor_pressure(v_neighbor_system,
+                                   neighbor_system::WallBoundarySystem{<:BoundaryModelDummyParticles{PressureMirroring}},
+                                   neighbor, p_a)
+    return p_a
+end
+
 function calculate_dt(v_ode, u_ode, cfl_number, system::AbstractFluidSystem, semi)
     (; viscosity, acceleration, surface_tension) = system
 

src/schemes/fluid/weakly_compressible_sph/rhs.jl

@@ -128,17 +128,6 @@ function interact!(dv, v_particle_system, u_particle_system,
     return dv
 end
 
-@propagate_inbounds function neighbor_pressure(v_neighbor_system, neighbor_system,
-                                               neighbor, p_a)
-    return current_pressure(v_neighbor_system, neighbor_system, neighbor)
-end
-
-@inline function neighbor_pressure(v_neighbor_system,
-                                   neighbor_system::WallBoundarySystem{<:BoundaryModelDummyParticles{PressureMirroring}},
-                                   neighbor, p_a)
-    return p_a
-end
-
 @propagate_inbounds function velocity_and_density(v, system::WeaklyCompressibleSPHSystem,
                                                   particle)
     (; density_calculator) = system