Merge pull request #25 from JuliaPOMDP/tiny_fixes

Tiny fixes

src/GridWorlds.jl

@@ -74,16 +74,6 @@ end
 
 GridWorld(;sx::Int64=10, sy::Int64=10, kwargs...) = GridWorld(sx, sy; kwargs...)
 
-# convenience function
-function term_from_rs(rs, rv)
-    terminals = Set{GridWorldState}()
-    for (i,v) in enumerate(rv)
-        if v > 0.0
-            push!(terminals, rs[i])
-        end
-    end
-end
-
 
 #################################################################
 # State and Action Spaces

src/Random.jl

@@ -1,4 +1,4 @@
-function RandomMDP(ns::Int64, na::Int64, discount::Float64; rng::AbstractRNG=MersenneTwister())
+function RandomMDP(ns::Int64, na::Int64, discount::Float64; rng::AbstractRNG=Base.GLOBAL_RNG)
     # random dynamics
     T = rand(rng, ns, na, ns) 
     # normalize
@@ -12,7 +12,7 @@ end
 RandomMDP() = RandomMDP(100, 5, 0.9)
 
 
-function RandomPOMDP(ns::Int64, na::Int64, no::Int64, discount::Float64; rng::AbstractRNG=MersenneTwister())
+function RandomPOMDP(ns::Int64, na::Int64, no::Int64, discount::Float64; rng::AbstractRNG=Base.GLOBAL_RNG)
     # random dynamics
     T = rand(rng, ns, na, ns) 
     # random observation model

test/crying.jl

@@ -8,10 +8,10 @@ problem = BabyPOMDP()
 
 # starve policy
 # when the baby is never fed, the reward for starting in the hungry state should be -100
-sim = RolloutSimulator(eps=0.0001, initial_state=true)
+sim = RolloutSimulator(eps=0.0001)
 ib = nothing
 policy = Starve()
-r = simulate(sim, problem, policy, updater(policy), ib)
+r = simulate(sim, problem, policy, updater(policy), ib, true)
 @test r ≈ -100.0 atol=0.01
 
 # test generate_o

test/random.jl

@@ -25,3 +25,7 @@ ov = convert_o(Array{Float64}, 1, pomdp)
 @test ov == [1.]
 o = convert_o(Int, ov, pomdp)
 @test o == 1
+
+# to catch anything in the default constructors
+RandomPOMDP()
+RandomMDP()