Add instructions to the readme as well

diff --git a/README.txt b/README.txt
index 651b7909ce1aace963c010be7fb5c98a0f23d975..a832f3d6e7729ff833c65393f466215d86ed00ff 100644 (file)
--- a/README.txt
+++ b/README.txt
@@ -46,8 +46,29 @@ Othewise open a terminal / console and "cd" to the game directory and run:
 How to Play the Game
 --------------------
 
-There are no ducks.
+You are a robot, frantically trying to set the correct bits to gain points,
+for reasons that are unlikely to ever become clear.
 
+Your robot has 8 bits. Four bits control the directions you can move in,
+3 allow you to unlock various actions, and the last, the Most Significant Bit,
+makes everything work better.
+
+The game has two phases. Movement and Actions.
+
+During Movement, you can explore the board and learn about the available
+tiles. Tiles you can legally move onto are highlighted. It's always possible
+to stay on your current tile.
+
+After moving, select an action from the tile. Most actions require various
+bits to be set, although all tiles have a default action, although this may
+be "No effect". After the action, the tile will be replaced with a new tile.
+
+Some actions cost you health. When you run out of health, the game is over
+and you lose.
+
+If you have all three colour bits set, and are on the right tile, you can
+gain a point, although this unsets all the colour bits. Once you have enough
+points, you win the game, and there is much rejoicing.
 
 Development notes
 -----------------