From c8fdef3b8f9b2eaab5fdccc9f8a9888d12972cc5 Mon Sep 17 00:00:00 2001
From: 3gg <3gg@shellblade.net>
Date: Thu, 4 Sep 2025 19:19:47 -0700
Subject: Fix the checkerboard demo, which was being rendered as an orthogonal
 map after the recent changes.

---
 include/isogfx/gfx2d.h | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

(limited to 'include')

diff --git a/include/isogfx/gfx2d.h b/include/isogfx/gfx2d.h
index 59566f3..a3ddbb6 100644
--- a/include/isogfx/gfx2d.h
+++ b/include/isogfx/gfx2d.h
@@ -37,12 +37,18 @@ typedef struct TileDesc {
   };
 } TileDesc;
 
+typedef enum MapOrientation {
+  MapOrthogonal,
+  MapIsometric,
+} MapOrientation;
+
 typedef struct MapDesc {
-  int tile_width;   // Base tile width in pixels.
-  int tile_height;  // Base tile height in pixels.
-  int world_width;  // World width in tiles.
-  int world_height; // World height in tiles.
-  int num_tiles;    // Number of tiles to allocate memory for.
+  int            tile_width;   // Base tile width in pixels.
+  int            tile_height;  // Base tile height in pixels.
+  int            world_width;  // World width in tiles.
+  int            world_height; // World height in tiles.
+  int            num_tiles;    // Number of tiles to allocate memory for.
+  MapOrientation orientation;  // Map orientation.
 } MapDesc;
 
 typedef struct IsoGfxDesc {
-- 
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