Add some comments to structs.h

1 files changed, 4 insertions, 3 deletions

diff --git a/structs.h b/structs.h
index 9b8b13e..bc63408 100644
--- a/structs.h
+++ b/structs.h
@@ -3,6 +3,7 @@
 
 #include <stddef.h>
 
+/* Top-left corner is x = 0, y = 0 */
 struct Position_s {
     size_t x;
     size_t y;
@@ -11,9 +12,8 @@ typedef struct Position_s Position;
 
 enum MapTile_e {
     EMPTY = 0,
-    WALL,
+    WALL = 255,
 };
-
 typedef enum MapTile_e MapTile;
 
 enum Colors_e {
@@ -24,7 +24,7 @@ enum Colors_e {
     START_COLOR = 5,
     PATH_COLOR = 6,
     FRONTIER_COLOR = 7,
-    CURSOR_COLOR = 8,
+    CURSOR_COLOR = 8, /* Used in path.c/anim() */
     WALL_TEXT_COLOR = 9,
 };
 
@@ -32,6 +32,7 @@ enum Colors_e {
  * Use as map[row][column] */
 typedef MapTile** Map;
 
+/* Yeah I'm not sure either */
 struct PathNode_s {
     Position parent;
 };