mine.lua: updated blurb with fuel info and fixed coordinates to match with mc

mine.lua

@@ -95,19 +95,19 @@ function move (x, y, z)
         moveInLine(-x)
     end
     mode.x = mode.x + x
-    -- y
-    if y > 0 then
-        turnToFace(FORWARD)
-        moveInLine(y)
-    end
-    if y < 0 then
-        turnToFace(BACK)
-        moveInLine(-y)
-    end
-    mode.y = mode.y + y
     -- z
-    moveUpDown(z)
+    if z > 0 then
+        turnToFace(FORWARD)
+        moveInLine(z)
+    end
+    if z < 0 then
+        turnToFace(BACK)
+        moveInLine(-z)
+    end
     mode.z = mode.z + z
+    -- y
+    moveUpDown(y)
+    mode.y = mode.y + y
 end
 
 function dropOffItems (go_back)
@@ -283,6 +283,7 @@ function usage ()
         start of the program.")
     print("If invoked with only three arguments, act as if they are the last \
         three arguments and substitute 0 0 -1 for the first three.")
+    print("Fuel goes in the top-left slot of the turtle's inventory")
 end
 
 function argsToNumbers ()