Added in a new art for a 'gold savior' and refined the battle engine more but it's not quite what I want.

assets/ai.json

@@ -79,7 +79,6 @@
   ],
   "states": {
     "Host::initial_state": {
-      "tough_personality": true,
       "enemy_found": false,
       "enemy_dead": false,
       "health_good": true,
@@ -88,7 +87,8 @@
       "in_combat": false,
       "have_item": false,
       "have_healing": false,
-      "detect_enemy": true
+      "detect_enemy": true,
+      "tough_personality": true
     },
     "Host::final_state": {
       "enemy_found": true,

assets/config.json

@@ -20,6 +20,11 @@
     "ambient_1": "assets/sounds/ambient_1.ogg"
   },
   "sprites": {
+    "gold_savior":
+    {"path": "assets/gold_savior-256.png",
+      "frame_width": 256,
+      "frame_height": 256
+    },
     "armored_knight":
     {"path": "assets/armored_knight_1-256.png",
       "frame_width": 256,

battle.cpp

@@ -2,7 +2,7 @@
 #include "battle.hpp"
 
 namespace combat {
-  void BattleEngine::add_enemy(BattleAction enemy) {
+  void BattleEngine::add_enemy(Combatant enemy) {
     combatants.try_emplace(enemy.entity, enemy);
   }
 
@@ -10,19 +10,22 @@ namespace combat {
     int active = 0;
 
     for(auto& [entity, enemy] : combatants) {
-      enemy.ai.set_state("enemy_found", true);
-      enemy.ai.set_state("in_combat", true);
       enemy.ai.update();
-
       active += enemy.ai.active();
-      // yes, copy it out of the combatants list
-      pending_actions.push_back(enemy);
+
+      if(enemy.ai.active()) {
+        if(enemy.ai.wants_to("kill_enemy")) {
+          pending_actions.emplace_back(enemy, BattleAction::ATTACK);
+        } else if(enemy.ai.wants_to("run_away")) {
+          pending_actions.emplace_back(enemy, BattleAction::ESCAPE);
+        }
+      }
     }
 
     return active > 0;
   }
 
-  std::optional<BattleAction> BattleEngine::next() {
+  std::optional<BattleResult> BattleEngine::next() {
     if(pending_actions.size() == 0) return std::nullopt;
 
     auto ba = pending_actions.back();
@@ -36,4 +39,22 @@ namespace combat {
       enemy.ai.dump();
     }
   }
+
+  void BattleEngine::set(DinkyECS::Entity entity, std::string state, bool setting) {
+    dbc::check(combatants.contains(entity), "invalid combatant given to BattleEngine");
+    auto& action = combatants.at(entity);
+    action.ai.set_state(state, setting);
+  }
+
+  void BattleEngine::set_all(std::string state, bool setting) {
+    for(auto& [ent, action] : combatants) {
+      action.ai.set_state(state, setting);
+    }
+  }
+
+  void BattleEngine::queue(DinkyECS::Entity entity, BattleAction action) {
+    dbc::check(combatants.contains(entity), "invalid combatant given to BattleEngine");
+    auto& enemy = combatants.at(entity);
+    pending_actions.emplace_back(enemy, action);
+  }
 }

battle.hpp

@@ -7,19 +7,31 @@
 
 namespace combat {
 
-  struct BattleAction {
+  struct Combatant {
     DinkyECS::Entity entity;
     ai::EntityAI &ai;
     components::Combat &combat;
   };
 
+  enum class BattleAction {
+    ATTACK, BLOCK, ESCAPE
+  };
+
+  struct BattleResult {
+    Combatant &state;
+    BattleAction action;
+  };
+
   struct BattleEngine {
-    std::unordered_map<DinkyECS::Entity, BattleAction> combatants;
-    std::vector<BattleAction> pending_actions;
+    std::unordered_map<DinkyECS::Entity, Combatant> combatants;
+    std::vector<BattleResult> pending_actions;
 
-    void add_enemy(BattleAction ba);
+    void add_enemy(Combatant ba);
     bool plan();
-    std::optional<BattleAction> next();
+    std::optional<BattleResult> next();
     void dump();
+    void set(DinkyECS::Entity entity, std::string state, bool setting);
+    void set_all(std::string state, bool setting);
+    void queue(DinkyECS::Entity entity, BattleAction action);
   };
 }

systems.cpp

@@ -223,20 +223,24 @@ void System::combat(GameLevel &level) {
       }
     }
 
+    battle.set_all("enemy_found", true);
+    battle.set_all("in_combat", true);
     battle.plan();
   }
 
-  while(auto enemy = battle.next()) {
+  while(auto act = battle.next()) {
+    auto [enemy, action] = *act;
+
     Events::Combat result {
-      player_combat.attack(enemy->combat), 0
+      player_combat.attack(enemy.combat), 0
     };
 
-    if(enemy->ai.wants_to("kill_enemy")) {
-      result.enemy_did = enemy->combat.attack(player_combat);
-      animate_entity(world, enemy->entity);
+    if(enemy.ai.wants_to("kill_enemy")) {
+      result.enemy_did = enemy.combat.attack(player_combat);
+      animate_entity(world, enemy.entity);
     }
 
-    world.send<Events::GUI>(Events::GUI::COMBAT, enemy->entity, result);
+    world.send<Events::GUI>(Events::GUI::COMBAT, enemy.entity, result);
   }
 }
 

tests/battle.cpp

@@ -13,31 +13,45 @@ TEST_CASE("battle operations fantasy", "[combat-battle]") {
 
   auto ai_start = ai::load_state("Enemy::initial_state");
   auto ai_goal = ai::load_state("Enemy::final_state");
+  auto host_start = ai::load_state("Host::initial_state");
+  auto host_goal = ai::load_state("Host::final_state");
   BattleEngine battle;
 
-  DinkyECS::Entity axe_ranger = 0;
+  DinkyECS::Entity player = 0;
+  ai::EntityAI player_ai("Host::actions", host_start, host_goal);
+  components::Combat player_combat{100, 100, 20};
+  battle.add_enemy({player, player_ai, player_combat});
+
+  DinkyECS::Entity axe_ranger = 1;
   ai::EntityAI axe_ai("Enemy::actions", ai_start, ai_goal);
-  axe_ai.set_state("tough_personality", true);
-  axe_ai.set_state("health_good", true);
   components::Combat axe_combat{100, 100, 20};
   battle.add_enemy({axe_ranger, axe_ai, axe_combat});
 
-  DinkyECS::Entity rat = 1;
+  DinkyECS::Entity rat = 2;
   ai::EntityAI rat_ai("Enemy::actions", ai_start, ai_goal);
-  rat_ai.set_state("tough_personality", false);
-  rat_ai.set_state("health_good", true);
   components::Combat rat_combat{10, 10, 2};
   battle.add_enemy({rat, rat_ai, rat_combat});
 
+  battle.set_all("enemy_found", true);
+  battle.set_all("in_combat", true);
+  battle.set_all("tough_personality", true);
+  battle.set_all("health_good", true);
+  battle.set(rat, "tough_personality", false);
+
+  battle.queue(player, BattleAction::ATTACK);
+  battle.queue(player, BattleAction::BLOCK);
+
+  battle.queue(player, BattleAction::ESCAPE);
+
   battle.plan();
 
   while(auto act = battle.next()) {
-    auto& [entity, enemy_ai, combat] = *act;
+    auto& [enemy, action] = *act;
 
-    fmt::println("entity: {} wants to {} and has {} HP and {} damage",
-        entity,
-        enemy_ai.wants_to(),
-        combat.hp, combat.damage);
+    fmt::println("entity: {} wants to {} action={} and has {} HP and {} damage",
+        enemy.entity, enemy.ai.wants_to(),
+        int(action), enemy.combat.hp,
+        enemy.combat.damage);
   }
 
   REQUIRE(!battle.next());