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iacobson / ecspanse

Entity Component System (ECS) library for Elixir, offering a suite of features including: flexible queries with multiple filters, dynamic bidirectional relationships, versatile tagging capabilities, system event subscriptions, or asynchronous system execution.
https://hexdocs.pm/ecspanse
Apache License 2.0
59 stars 7 forks source link

fix temporary timers #2

Closed holykol closed 1 year ago

holykol commented 1 year ago

Turns out this happens when there is at least 1 :temporary timer is the system:

02:31:19.898 [error] Task #PID<0.4162.0> started from Ecspanse.Server terminating
** (KeyError) key :__meta__ not found in: []. If you are using the dot syntax, such as map.field, make sure the left-hand side of the dot is a map
    (ecspanse 0.3.0) lib/ecspanse/command.ex:967: anonymous fn/1 in Ecspanse.Command.apply_operation/3
    (elixir 1.14.5) lib/enum.ex:1658: Enum."-map/2-lists^map/1-0-"/2
    (ecspanse 0.3.0) lib/ecspanse/command.ex:967: Ecspanse.Command.apply_operation/3
    (ecspanse 0.3.0) lib/ecspanse/command.ex:386: Ecspanse.Command.remove_components!/1
    (elixir 1.14.5) lib/enum.ex:980: anonymous fn/3 in Enum.each/2
    (stdlib 4.3.1.2) maps.erl:411: :maps.fold_1/3
    (elixir 1.14.5) lib/enum.ex:2480: Enum.each/2
    (ecspanse 0.3.0) lib/ecspanse/server.ex:440: anonymous fn/2 in Ecspanse.Server.run_system/2
Function: #Function<11.95439573/0 in Ecspanse.Server.run_system/2>
    Args: []

Almost went insane trying to trace this error back to this line :) Btw thanks for this awesome library. It's really well thought out

iacobson commented 1 year ago

Very nice catch. Thank you for the PR! My bad I didn't have tests for timers. I will try to add some for the next release.

The next release should solve the currently opened event scheduling issue as well.

BTW, if you're building something with the library, even if it's an experiment, or just for fun project, please post some details on the Elixir Forum Ecspanse page. I'm really curious what people use it for.