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assets.md

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+# Assets
+
+PPM files that may be converted into the game's raw data format.
+
+## Map
+
+The `assets/map.ppm` file contains a representation of the initial state of the map.
+The corresponding tile values are:
+
+PPM 8bits channels | Tile
+-- | --
+`0x00_00_00` | `0` (Empty)
+`0xFF_00_00` | `1` (Wall)
+`0xFF_FF_00` | `2` (Coin)
+
+## Sprites
+
+The corresponding in-game color values are:
+
+PPM 8bits channels | In-game `RRRGGGBB` value | Name
+-- | -- | --
+`0x00_00_00` | `000_000_00` | Black
+`0x00_00_FF` | `000_000_11` | Blue
+`0x00_FF_00` | `000_111_00` | Green
+`0x77_77_77` | `010_011_10` | Gray
+`0xFF_00_00` | `111_000_00` | Red
+`0xFF_00_FF` | `111_000_11` | Pink
+`0xFF_80_00` | `111_100_00` | Orange
+`0xFF_FF_00` | `111_110_00` | Yellow
+`0xFF_FF_FF` | `111_111_11` | White