bugfix(water): Restore shore waves when loading saved games

[bobtista]

WaterTracksRenderSystem::loadTracks opens the .wak file next to the terrain source file. After a save load the terrain source is the map extracted into the save folder. The save embeds only the .map, so the .wak is not found and the shore waves are missing.

Now loadTracks uses the pristine map name when the terrain source is in the save directory, the same way GameLogic finds the map.ini of a saved map. The original map still has to be installed.

Todo:

• Load a GLA mission 3 save: before the fix Save/md_gla03.wak is not found, after the fix Maps/md_gla03/md_gla03.wak is opened
• Compare the shore waves in game before and after

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: ac293347-29ad-45d2-9093-15e6e70a962f

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📥 Commits

Reviewing files that changed from the base of the PR and between 0e6a06c and 837a84b.

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📒 Files selected for processing (1)

• Core/GameEngineDevice/Source/W3DDevice/GameClient/Water/W3DWaterTracks.cpp

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Walkthrough

loadTracks now uses the pristine map name to locate the .wak file when the terrain source is in the save directory and TheGameState exists. Otherwise, it continues to use the terrain source filename.

Changes

Water track loading

Layer / File(s)	Summary
Select filename for saved terrain Core/GameEngineDevice/Source/W3DDevice/GameClient/Water/W3DWaterTracks.cpp	The code includes GameState.h. When the terrain source is in the save directory and TheGameState exists, loadTracks uses the pristine map name to locate the .wak file. Otherwise, it uses the terrain source filename.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~5 minutes

Change: Bug fix

Merge Risk: ⚪ Minimal · up to 837a8

Saved-game loads now look for shore-wave data alongside the pristine map. No concrete merge-blocking issue is evident; visual confirmation in game remains outstanding.

Pre-merge checks | 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check		The title clearly and concisely identifies the main change: restoring shore waves when loading saved games.
Description check		The description directly explains the missing .wak file issue, the save-directory condition, the use of the pristine map name, and the expected result.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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• Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

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