Fix tacmap runtime for hunting grounds and misc tacmap fixes

[Drulikar]

About the pull request

This PR does a few things:

• Fixes https://runtimes.cm-ss13.com/cm13/issues/276 because now Z 14 will exist (its a late loaded Z from hunting grounds when reservation space is already occupied with something else like fax responders - looks like load_new_z was always intended to be a signal handler anyways for a global signal)
• Micro-optimizes out a redundant istype check in /datum/controller/subsystem/minimaps/fire
• Fixes an incorrect COMSIG_MOVABLE_Z_CHANGED signal: It lacked oldz and newz arguments, and generally signal senders should be from one source - in this case from onTransitZ.

Explain why it's good for the game

Less runtimes!

Testing Photographs and Procedure

Screenshots & Videos

Changelog

🆑 Drathek
fix: Fixed some tacmap runtimes with hunting grounds
fix: Fixed a bad COMSIG_MOVABLE_Z_CHANGED call
/:cl:

[cm13-github]

Test merge deployment history:

Test Merge Deployed @ 05/20/2026 07:24:34 +00:00:

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Origin: 03d45a3
Pull Request: 5169c77
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Test Merge Updated @ 05/20/2026 17:54:17 +00:00:

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Origin: c95e9b1
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Server: 3280e9154949182c4e51ee27602a16ed75001565

Test Merge Updated @ 05/20/2026 22:56:32 +00:00:

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Origin: a46fad7
Pull Request: 5169c77
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Origin: f4f02d0
Pull Request: 5169c77
Server: 66f94a611a94e93292e3ee078228929c17a40a79

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Test Merge Updated @ 05/21/2026 01:30:42 +00:00:

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Server: 34b682f2ec12fe202bbfed0650de5dd8fdb3d171

Test Merge Updated @ 05/21/2026 04:32:09 +00:00:

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Origin: 583cbcd
Pull Request: 5169c77
Server: 8370b689eb8f7a8fc27dec335a12d1e370909568

Test Merge Updated @ 05/22/2026 00:39:01 +00:00:

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Test Merge Updated @ 05/22/2026 01:40:04 +00:00:

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Server: 5077583f3db971aac04b915045a3e4cff448258b

Test Merge Updated @ 05/22/2026 04:11:23 +00:00:

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Origin: 776c4a6
Pull Request: 5169c77
Server: aa6b594cf5f372f9fd261c17b9cc08289e69f3e3

Test Merge Updated @ 05/22/2026 14:14:57 +00:00:

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Origin: 6d8a35f
Pull Request: 5169c77
Server: f32a9a785e7b27a2c504f88b437161b3b6568e2a

Test Merge Updated @ 05/22/2026 14:45:49 +00:00:

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Origin: 7cd9b89
Pull Request: 5169c77
Server: 432c8f6af683f307ca5e93d52e80d1107d620c53

Test Merge Updated @ 05/22/2026 22:18:38 +00:00:

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Origin: 7cd9b89
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Test Merge Updated @ 05/23/2026 03:50:39 +00:00:

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Origin: 4412c87
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Server: f93494153429cf9e2fd1691a41e3701ac63e9908

Test Merge Updated @ 05/23/2026 04:51:36 +00:00:

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Origin: 4412c87
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Test Merge Updated @ 05/23/2026 16:14:49 +00:00:

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Origin: 4412c87
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Server: 3156670

Test Merge Updated @ 05/23/2026 16:25:09 +00:00:

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Origin: 3d558ec
Pull Request: 5169c77
Server: f9f92f73e48de6d52d3be8c3efda2f16b4ec271b

Test Merge Removed @ 05/23/2026 16:54:29 +00:00:

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CM13 Live