Replaced goal ratio with a_b_ratio and added abs to eigvals ratio

src/RL/EnvHelper.jl

@@ -7,7 +7,7 @@ struct EnvHelperSharedProps{H<:AbstractHook}
 
     n_steps_before_actions_update::Int64
 
-    goal_gyration_tensor_eigvals_ratio::Float64
+    elliptical_a_b_ratio::Float64
 
     n_particles::Int64
 
@@ -22,7 +22,7 @@ struct EnvHelperSharedProps{H<:AbstractHook}
         agent::Agent,
         hook::H,
         n_steps_before_actions_update::Int64,
-        goal_gyration_tensor_eigvals_ratio::Float64,
+        elliptical_a_b_ratio::Float64,
         n_particles::Int64,
     ) where {H<:AbstractHook}
         return new{H}(
@@ -30,7 +30,7 @@ struct EnvHelperSharedProps{H<:AbstractHook}
             agent,
             hook,
             n_steps_before_actions_update,
-            goal_gyration_tensor_eigvals_ratio,
+            elliptical_a_b_ratio,
             n_particles,
             fill(0, n_particles),
             fill(0, n_particles),

src/RL/LocalCOMEnv.jl

@@ -51,8 +51,7 @@ mutable struct LocalCOMEnvHelper <: EnvHelper
     max_elliptical_distance::Float64
 
     function LocalCOMEnvHelper(shared::EnvHelperSharedProps, half_box_len::Float64, skin_r)
-        max_elliptical_distance =
-            sqrt(2) * half_box_len / shared.goal_gyration_tensor_eigvals_ratio
+        max_elliptical_distance = sqrt(2) * half_box_len / shared.elliptical_a_b_ratio
 
         max_distance_to_local_center_of_mass = skin_r
 
@@ -193,7 +192,7 @@ function update_reward!(env::LocalCOMEnv, env_helper::LocalCOMEnvHelper, particl
                 env_helper.center_of_mass,
                 env_helper.gyration_tensor_eigvec_to_smaller_eigval,
                 env_helper.gyration_tensor_eigvec_to_bigger_eigval,
-                env_helper.shared.goal_gyration_tensor_eigvals_ratio,
+                env_helper.shared.elliptical_a_b_ratio,
                 env_helper.half_box_len,
             )
 

src/RL/RL.jl

@@ -53,7 +53,7 @@ end
 function run_rl(;
     EnvType::Type{E},
     parent_dir_appendix::String,
-    goal_gyration_tensor_eigvals_ratio::Float64,
+    elliptical_a_b_ratio::Float64,
     n_episodes::Int64=200,
     episode_duration::Float64=50.0,
     update_actions_at::Float64=0.1,
@@ -64,7 +64,7 @@ function run_rl(;
     packing_ratio::Float64=0.22,
     show_progress::Bool=true,
 ) where {E<:Env}
-    @assert 0.0 <= goal_gyration_tensor_eigvals_ratio <= 1.0
+    @assert 0.0 <= elliptical_a_b_ratio <= 1.0
     @assert n_episodes > 0
     @assert episode_duration > 0
     @assert update_actions_at in 0.001:0.001:episode_duration
@@ -93,12 +93,7 @@ function run_rl(;
     hook = TotalRewardPerEpisode()
 
     env_helper_shared = EnvHelperSharedProps(
-        env,
-        agent,
-        hook,
-        n_steps_before_actions_update,
-        goal_gyration_tensor_eigvals_ratio,
-        n_particles,
+        env, agent, hook, n_steps_before_actions_update, elliptical_a_b_ratio, n_particles
     )
 
     env_helper_args = (half_box_len=sim_consts.half_box_len, skin_r=sim_consts.skin_r)

src/Shape.jl

@@ -4,7 +4,7 @@ export center_of_mass,
     gyration_tensor_eigvals_ratio, gyration_tensor_eigvecs, elliptical_distance
 
 using StaticArrays: SVector, SMatrix
-using LinearAlgebra: eigvals, eigvecs, Hermitian, dot
+using LinearAlgebra: LinearAlgebra as LA
 
 using ..ReCo: ReCo, Particle
 
@@ -88,7 +88,7 @@ function gyration_tensor(
         S22 += shifted_c[2]^2
     end
 
-    return Hermitian(SMatrix{2,2}(S11, S12, S12, S22))
+    return LA.Hermitian(SMatrix{2,2}(S11, S12, S12, S22))
 end
 
 function gyration_tensor(particles::AbstractVector{Particle}, half_box_len::Real)
@@ -101,15 +101,15 @@ function gyration_tensor_eigvals_ratio(
     particles::AbstractVector{Particle}, half_box_len::Real
 )
     g_tensor = gyration_tensor(particles, half_box_len)
-    ev = eigvals(g_tensor) # Eigenvalues are sorted
-    return ev[1] / ev[2]
+    ev = LA.eigvals(g_tensor) # Eigenvalues are sorted
+    return abs(ev[1] / ev[2])
 end
 
 function gyration_tensor_eigvecs(
     particles::AbstractVector{Particle}, half_box_len::R, COM::SVector{2,R}
 ) where {R<:Real}
     g_tensor = gyration_tensor(particles, half_box_len, COM)
-    eig_vecs = eigvecs(g_tensor)
+    eig_vecs = LA.eigvecs(g_tensor)
 
     v1 = eig_vecs[:, 1]
     v2 = eig_vecs[:, 2]
@@ -122,15 +122,15 @@ function elliptical_distance(
     COM::SVector{2,R},
     gyration_tensor_eigvec_to_smaller_eigval::SVector{2,R},
     gyration_tensor_eigvec_to_bigger_eigval::SVector{2,R},
-    goal_gyration_tensor_eigvals_ratio::R,
+    elliptical_a_b_ratio::R,
     half_box_len::R,
 ) where {R<:Real}
     v′ = ReCo.minimum_image(v - COM, half_box_len)
 
-    x = dot(v′, gyration_tensor_eigvec_to_bigger_eigval)
-    y = dot(v′, gyration_tensor_eigvec_to_smaller_eigval)
+    x = LA.dot(v′, gyration_tensor_eigvec_to_bigger_eigval)
+    y = LA.dot(v′, gyration_tensor_eigvec_to_smaller_eigval)
 
-    return sqrt(x^2 + (y / goal_gyration_tensor_eigvals_ratio)^2)
+    return sqrt(x^2 + (y / elliptical_a_b_ratio)^2)
 end
 
 end # module