ENH: added ResultsStore type to save propagation

src/models/Models.jl

@@ -1,6 +1,6 @@
 module Models
 
-import Base: +, -, *, isapprox, convert, copy, show
+import Base: +, -, *, isapprox, convert, copy, show, push!, getindex, setindex!
 using LinearAlgebra
 using FlightMechanics
 
@@ -74,7 +74,9 @@ get_payload_mass_props, calculate_aircraft,
 # DynamicSystem
 SixDOFEulerFixedMass, SixDOFQuaternionFixedMass, SixDOFECEFQuaternionFixedMass,
 SixDOFAeroEulerFixedMass,
-get_state_equation, get_state_equation_ode_wrapper, get_x, get_x_count, get_state
+get_state_equation, get_state_equation_ode_wrapper, get_x, get_x_count, get_state,
+# Results Store
+ResultsStore
 
 include("attitude.jl")
 include("position.jl")
@@ -93,4 +95,5 @@ include("propulsion.jl")
 include("aerodynamics.jl")
 include("aircraft.jl")
 include("dynamic_systems.jl")
+include("results_store.jl")
 end

src/models/results_store.jl

@@ -0,0 +1,34 @@
+struct ResultsStore
+    t :: Array{T, 1} where T <: Number
+    ac :: Array{T, 1} where T <: Aircraft
+    fcs :: Array{T, 1} where T <: FCS
+    env :: Array{T, 1} where T <: Environment
+    state :: Array{T, 1} where T <: State
+    aerostate :: Array{T, 1} where T <: AeroState
+end
+
+ResultsStore(t::Number, ac::Aircraft, fcs::FCS, env::Environment, state::State, aerostate::AeroState) = ResultsStore([t], [ac], [fcs], [env], [state], [aerostate])
+
+
+function push!(results::ResultsStore, t, ac, fcs, env, state, aerostate)
+    push!(results.t, t)
+    push!(results.ac, ac)
+    push!(results.fcs, fcs)
+    push!(results.env, env)
+    push!(results.state, state)
+    push!(results.aerostate, aerostate)
+end
+
+# Indexable collection
+function getindex(results::ResultsStore, ii)
+    return ResultsStore(results.t[ii], results.ac[ii], results.fcs[ii], results.env[ii], results.state[ii], results.aerostate[ii])
+end
+
+function set_index!(results::ResultsStore, value, ii)
+    results.t[ii] = value[0]
+    results.ac[ii] = value[1]
+    results.fcs[ii] = value[2]
+    results.env[ii] = value[3]
+    results.state[ii] = value[4]
+    results.aerostate[ii] = value[5]
+end