Fixed up the idea for having dynamic callbacks on devices. Might become the new way to do stuff but not sure.

assets/devices.json

@@ -8,7 +8,9 @@
     "inventory_count": 0,
     "components": [
       {"type": "Tile", "config": {"chr": "\u2ac5"}},
-      {"type": "Device", "config": {"active": true}}
+      {"type": "Device",
+        "config": {}, "actions": ["StairsDown"]
+      }
     ]
   },
   "STAIRS_UP": {
@@ -20,7 +22,9 @@
     "inventory_count": 0,
     "components": [
       {"type": "Tile", "config": {"chr": "\u2259"}},
-      {"type": "Device", "config": {"active": true}}
+      {"type": "Device",
+        "config": {}, "actions": ["StairsUp"]
+      }
     ]
   }
 }

components.cpp

@@ -0,0 +1,50 @@
+#include "components.hpp"
+
+namespace components {
+  void StairsDown(json &, DinkyECS::World &) {
+    fmt::println("GOING DOWN!");
+  }
+
+  void StairsUp(json &, DinkyECS::World &) {
+    fmt::println("GOING UP!");
+  }
+
+  void configure(DinkyECS::World &world, DinkyECS::Entity entity, json& entity_data) {
+    for(auto &comp : entity_data["components"]) {
+      json& config = comp["config"];
+
+      if(comp["type"] == "Weapon") {
+        world.set<Weapon>(entity, {config["damage"]});
+      } else if(comp["type"] == "LightSource") {
+        world.set<LightSource>(entity, {config["strength"], config["radius"]});
+      } else if(comp["type"] == "Loot") {
+        world.set<Loot>(entity, {config["amount"]});
+      } else if(comp["type"] == "Tile") {
+        world.set<Tile>(entity, {config["chr"]});
+      } else if(comp["type"] == "EnemyConfig") {
+        world.set<EnemyConfig>(entity, {config["hearing_distance"]});
+      } else if(comp["type"] == "Combat") {
+        world.set<Combat>(entity, {config["hp"], config["damage"]});
+      } else if(comp["type"] == "Curative") {
+        world.set<Curative>(entity, {config["hp"]});
+      } else if(comp["type"] == "Motion") {
+        world.set<Motion>(entity, {config["dx"], config["dy"], config["random"]});
+      } else if(comp["type"] == "Device") {
+        Device device{.config=config, .actions={}};
+
+        for(auto name : comp["actions"]) {
+          if(name == "StairsUp") {
+            device.actions.push_back(StairsUp);
+          } else if(name == "StairsDown") {
+            device.actions.push_back(StairsUp);
+          }
+        }
+
+        world.set<Device>(entity, device);
+      } else {
+        dbc::sentinel(fmt::format("ITEM COMPONENT TYPE MISSING: {}",
+              std::string(comp["type"])));
+      }
+    }
+  }
+}

components.hpp

@@ -6,10 +6,23 @@
 #include "config.hpp"
 
 namespace components {
+  typedef std::function<void(json &config, DinkyECS::World &world)> Action;
+
   struct Device {
-    bool active = 0;
+    json config;
+    std::vector<Action> actions;
+
+    void hit(DinkyECS::World &world) {
+      for(auto& action : actions) {
+        action(config, world);
+      }
+    }
   };
 
+  void StairsDown(json &data, DinkyECS::World &world);
+  void StairsUp(json &data, DinkyECS::World &world);
+  void DummyDeviceAction(json &data, DinkyECS::World &world);
+
   struct Player {
     DinkyECS::Entity entity;
     DEFINE_SERIALIZABLE(Player, entity);
@@ -62,32 +75,5 @@ namespace components {
     int hp = 10;
   };
 
-  inline void configure(DinkyECS::World &world, DinkyECS::Entity entity, json& entity_data) {
-    for(auto &comp : entity_data["components"]) {
-      json& config = comp["config"];
-
-      if(comp["type"] == "Weapon") {
-        world.set<Weapon>(entity, {config["damage"]});
-      } else if(comp["type"] == "LightSource") {
-        world.set<LightSource>(entity, {config["strength"], config["radius"]});
-      } else if(comp["type"] == "Loot") {
-        world.set<Loot>(entity, {config["amount"]});
-      } else if(comp["type"] == "Tile") {
-        world.set<Tile>(entity, {config["chr"]});
-      } else if(comp["type"] == "EnemyConfig") {
-        world.set<EnemyConfig>(entity, {config["hearing_distance"]});
-      } else if(comp["type"] == "Combat") {
-        world.set<Combat>(entity, {config["hp"], config["damage"]});
-      } else if(comp["type"] == "Curative") {
-        world.set<Curative>(entity, {config["hp"]});
-      } else if(comp["type"] == "Motion") {
-        world.set<Motion>(entity, {config["dx"], config["dy"], config["random"]});
-      } else if(comp["type"] == "Device") {
-        world.set<Device>(entity, {config["active"]});
-      } else {
-        dbc::sentinel(fmt::format("ITEM COMPONENT TYPE MISSING: {}",
-              std::string(comp["type"])));
-      }
-    }
-  }
+  void configure(DinkyECS::World &world, DinkyECS::Entity entity, json& entity_data);
 }

events.hpp

@@ -9,8 +9,4 @@ namespace Events {
     int player_did;
     int enemy_did;
   };
-
-  struct Death {
-    int placeholder = 0;
-  };
 }

meson.build

@@ -37,6 +37,7 @@ source=[
   'lights.cpp',
   'worldbuilder.cpp',
   'inventory.cpp',
+  'components.cpp',
 ]
 
 runtests = executable('runtests',

systems.cpp

@@ -217,8 +217,6 @@ void System::pickup(DinkyECS::World &world, DinkyECS::Entity actor, DinkyECS::En
 
 void System::device(DinkyECS::World &world, DinkyECS::Entity actor, DinkyECS::Entity item) {
   auto& device = world.get<Device>(item);
-  if(device.active) {
   println("entity {} INTERACTED WITH DEVICE {}", actor, item);
-    device.active = false;
-  }
+  device.hit(world);
 }