wip: rat logic

data/scenarios/Challenges/_pied-piper/rat.sw

@@ -1,3 +1,14 @@
+def checkExpireSelf =
+    loc <- whereami;
+    if (snd loc > 6) {selfdestruct} {};
+    end;
+
+
+def moveWithMortality =
+    move;
+    instant checkExpireSelf;
+    end;
+
 def goFoodDir = \f. \r.
     // say "in goFoodDir";
     let d = fst r in
@@ -15,7 +26,7 @@ def goFoodDir = \f. \r.
         // navigation direction is determined
         // but before we move.
         try {
-            move;
+            moveWithMortality;
         } {};
         f;
     }
@@ -33,7 +44,7 @@ def goHomeDir = \f. \r.
         // navigation direction is determined
         // but before we move.
         try {
-            move;
+            moveWithMortality;
         } {};
         f;
     }
@@ -52,7 +63,7 @@ def moveUntilBlocked =
     isBlocked <- blocked;
     if isBlocked {
     } {
-        move;
+        moveWithMortality;
         moveUntilBlocked;
     };
     end;
@@ -78,10 +89,6 @@ def pursueFood = \hadSensedFood. \homeLoc.
         goFoodDir $ pursueFood true homeLoc;
     end;
 
-def checkExpireSelf =
-    loc <- whereami;
-    if (snd loc > 6) {selfdestruct} {};
-    end;
 
 def doMovement = \startLoc.
     // say "in doMovement";

data/scenarios/Challenges/_pied-piper/solution.sw

@@ -1,15 +1,39 @@
 def doN = \n. \f. if (n > 0) {f; doN (n - 1) f} {}; end;
 
-def makeOatsTrail =
+def makeOatsCrumb = \spacing.
   place "oats";
-  doN 4 move;
+  doN spacing move;
   end;
 
-def go =
-  doN 5 makeOatsTrail;
+
+def waitUntilDisappeared =
+  found <- scout north;
+  if found {
+      wait 1;
+      waitUntilDisappeared;
+  } {};
+  end;
+
+/**
+Place a trail of breadcrumbs, and return
+one crumb short of the first crumb.
+*/
+def makeOatsTrail = \spacing. \segments.
+  doN segments $ makeOatsCrumb spacing;
   turn back;
-  doN (5*4) move;
+  doN ((segments - 1)*spacing) move;
   turn back;
+  watch down;
+  wait 2000;
+  end;
+
+def go =
+  let spacing = 4 in
+  let segments = 5 in
+  makeOatsTrail spacing segments;
+  // Has probably awakened due to rat eating food here.
+  waitUntilDisappeared;
+  makeOatsTrail spacing $ segments;
   end;
 
 go;

data/scenarios/Challenges/pied-piper.yaml

@@ -23,6 +23,7 @@ robots:
       - 3D printer
       - ADT calculator
       - antenna
+      - binoculars
       - branch predictor
       - clock
       - comparator
@@ -34,10 +35,12 @@ robots:
       - lambda
       - logger
       - net
+      - rolex
       - scanner
       - strange loop
       - string
       - treads
+      - tweezers
       - workbench
     inventory:
       - [200, oats]
@@ -87,10 +90,21 @@ entities:
     properties: [known, pickable, growable]
     growth:
       duration: [20, 30]
-known: [water]
+known: [water, boulder]
 seed: 0
 world:
   structures:
+    - name: burrow
+      structure:
+        mask: '.'
+        palette:
+          'x': [stone, boulder]
+        map: |
+          .xxxx.
+          xx..xx
+          x.....
+          xx..xx
+          .xxxx.
     - name: house
       structure:
         palette:
@@ -143,6 +157,8 @@ world:
       offset: [23, -24]
       orient:
         up: east
+    # - src: burrow
+    #   offset: [-7, 10]
   upperleft: [0, 2]
   dsl: |
     overlay