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Add convert_s function #18

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Add convert_s function #18

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2b8c7d4
Update LaserTag.jl
yangyou95 Dec 13, 2022
c18fa55
Update LaserTag.jl
yangyou95 Dec 20, 2022
da28f02
update LaserTag convert_s and test functions
yangyou95 Jan 17, 2023
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5 changes: 5 additions & 0 deletions src/LaserTag.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -143,6 +143,11 @@ function POMDPs.reward(p::LaserTagPOMDP, s::LTState, a::Int, sp::LTState)
end
end

# add a function to transform a LTState to a vector
function POMDPs.convert_s(T::Type{<:AbstractArray}, s::LTState, p::LaserTagPOMDP)
return convert(T, vcat(s.robot, s.opponent, [s.terminal]))
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Suggested change
return convert(T, vcat(s.robot, s.opponent, [s.terminal]))
return convert(T, vcat(s.robot, s.opponent, s.terminal))

I don't think you need to create a vector with s.terminal in it. That will cause an additional allocation.

(additionally, I think vcat itself might cause an allocation, which is disappointing. You might be able to eliminate all allocations with StaticArrays, but that might take a bit of learning. There are many tools to track allocations including BenchmarkTools.@btime

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Thanks for the info!

end

POMDPs.isterminal(p::LaserTagPOMDP, s::LTState) = s.terminal
POMDPs.discount(p::LaserTagPOMDP) = p.discount

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