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Adds a simple new lock_key environment. This is basically an extension of squared, but where the agent needs to first collect n keys before reaching the goal square. Additionally, the agent can only observe state within a range from its current position. Keys are green; locks are red and the agent is cyan. Control the number of keys with
--env.num-keys 5, grid size with--env.size 11, and observation range with--env.obs-dist 2This is very basic - I built this to get a better feel for the library - so feel free to close if this isn't useful.