From 3779d090f0bde96edca5b700fdfdf12a584992fa Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Wed, 26 Feb 2025 19:36:06 +0000
Subject: Split meshes by surface and tile

Tile is derived per face based on the first vertices point rounded to
roughly 1km.
---
 game/terrain.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'game/terrain.h')

diff --git a/game/terrain.h b/game/terrain.h
index 095b4ef..f5b1b32 100644
--- a/game/terrain.h
+++ b/game/terrain.h
@@ -37,7 +37,13 @@ private:
 		GLsizei count;
 	};
 
+	struct SurfaceKey {
+		const Surface * surface;
+		GlobalPosition2D basePosition;
+		bool operator<(const SurfaceKey &) const;
+	};
+
 	glBuffer verticesBuffer;
-	std::multimap<const Surface *, SurfaceArrayBuffer> meshes;
+	std::map<SurfaceKey, SurfaceArrayBuffer> meshes;
 	Texture::Ptr grass = std::make_shared<Texture>("grass.png");
 };
-- 
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