The basic idea of using GOAP to figure out if combined items will produce a valid ritual, and what kind of things the ritual does, mostly works.

assets/rituals.json

@@ -3,17 +3,20 @@
     "does_damage": 0,
     "has_spikes": 1,
     "has_magick": 2,
-    "is_complete": 3
+    "does_physical": 3,
+    "does_magick": 4,
+    "is_complete": 5
   },
   "actions": [
     {
       "name": "pierce_type",
-      "cost": 1000,
+      "cost": 0,
       "needs": {
         "is_complete": false,
         "has_spikes": true
       },
       "effects": {
+        "does_physical": true,
         "does_damage": true
       }
     },
@@ -25,6 +28,7 @@
         "has_magick": true
       },
       "effects": {
+        "does_magick": true,
         "does_damage": true
       }
     },
@@ -41,12 +45,16 @@
   ],
   "states": {
     "initial": {
+      "has_spikes": false,
+      "has_magick": false,
       "does_damage": false,
       "is_complete": false,
-      "has_spikes": false,
-      "has_magick": false
+      "does_magick": false,
+      "does_physical": false
     },
     "final": {
+      "does_magick": true,
+      "does_physical": true,
       "does_damage": true,
       "is_complete": true
     }

tests/combat.cpp

@@ -6,16 +6,21 @@
 struct RitualAI {
   std::string script;
   ai::State start;
+  ai::State original;
   ai::State goal;
   ai::ActionPlan plan;
 
   RitualAI(std::string script, ai::State start, ai::State goal) :
-    script(script), start(start), goal(goal)
+    script(script), start(start), original(start), goal(goal)
   {
   }
 
   RitualAI() {};
 
+  void reset() {
+    start = original;
+  }
+
   bool will_do(std::string name) {
     ai::check_valid_action(name, "RitualAI::is_able_to");
     return plan.script[0].name == name;
@@ -35,15 +40,6 @@ struct RitualAI {
 };
 
 TEST_CASE("prototype combat system ideas", "[combat]") {
-  // as the player picks up items they go in the invetory
-  // and they player has little "bags" they can put items
-  // in that combine the items into rituals.  How the items
-  // combine is controlled by the GOAP algorithm but tailored
-  // to item combinations that produce effects
-
-  // probably need to use the code in ai.cpp in a different
-  // system for the ritual loading stuff
-  //
   ai::reset();
   ai::init("assets/rituals.json");
 
@@ -54,14 +50,18 @@ TEST_CASE("prototype combat system ideas", "[combat]") {
 
   ritual.set_state("has_spikes", true);
   ritual.update();
-
+  fmt::println("------------ TEST WILL DO PIERCE");
   ritual.dump();
   REQUIRE(ritual.will_do("pierce_type"));
 
+  ritual.reset();
   ritual.set_state("has_magick", true);
+  ritual.set_state("has_spikes", true);
   ritual.update();
-
   fmt::println("------------ TEST WILL DO MAGICK TOO");
   ritual.dump();
   REQUIRE(ritual.will_do("magick_type"));
+
+  ritual.plan.script.pop_front();
+  REQUIRE(ritual.will_do("pierce_type"));
 }