The problem with picking up items under a dead body is fixed but now need to fix combat.

Makefile

@@ -60,7 +60,7 @@ clean:
 	meson compile --clean -C builddir
 
 debug_test: build
-	gdb --nx -x .gdbinit --ex run --args builddir/runtests -e "[map]"
+	gdb --nx -x .gdbinit --ex run --args builddir/runtests -e
 
 win_installer:
 	powershell 'start "C:\Program Files (x86)\solicus\InstallForge\bin\ifbuilderenvx86.exe" scripts\win_installer.ifp'

gui/fsm.cpp

@@ -74,7 +74,7 @@ namespace gui {
   void FSM::MOVING(Event ) {
     // this should be an optional that returns a point
     if(auto move_to = $main_ui.play_move()) {
-      System::plan_motion(*$level.world, *move_to);
+      System::plan_motion($level, *move_to);
       run_systems();
       $main_ui.dirty();
       state(State::IDLE);
@@ -198,14 +198,8 @@ namespace gui {
       case MOUSE_MOVE:
         mouse_action(true);
         break;
-      case AIM_CLICK: {
-          auto aimed_at = $main_ui.camera_aim();
-
-          if(aimed_at) {
-            // this will then send LOOT_ITEM if it's valid
-            System::pickup($level, aimed_at);
-          }
-        } break;
+      case AIM_CLICK:
+        System::pickup($level);
       default:
         break; // ignore everything else
     }
@@ -357,6 +351,10 @@ namespace gui {
             $loot_ui.update();
             event(Event::LOOT_OPEN);
             break;
+          case KEY::Z: {
+            auto& player_pos = System::player_position($level);
+            System::distribute_loot($level, {player_pos.aiming_at});
+            } break;
           case KEY::X:
             event(Event::STAIRS_DOWN);
             break;

spatialmap.cpp

@@ -66,6 +66,7 @@ inline void find_neighbor(const PointEntityMap &table, EntityList &result, Point
 
   Point cell = {at.x + dx, at.y + dy};
 
+  // Bug #81, should actually for-loop through these and only add ones with collision
   auto it = table.find(cell);
   if (it != table.end()) {
     result.insert(result.end(), it->second.entity);
@@ -117,6 +118,16 @@ inline void update_sorted(SortedEntities& sprite_distance, PointEntityMap& table
   }
 }
 
+Entity SpatialMap::find(Point at, std::function<bool(CollisionData)> cb) const {
+  auto [begin, end] = $collision.equal_range(at);
+
+  for(auto it = begin; it != end; ++it) {
+    if(cb(it->second)) return it->second.entity;
+  }
+
+  return DinkyECS::NONE;
+}
+
 void SpatialMap::distance_sorted(SortedEntities& sprite_distance, Point from, int max_dist) {
   sprite_distance.clear();
 

spatialmap.hpp

@@ -38,6 +38,8 @@ class SpatialMap {
     bool occupied(Point pos) const;
     bool something_there(Point at) const;
     DinkyECS::Entity get(Point at) const;
+    DinkyECS::Entity find(Point at, std::function<bool(CollisionData)> cb) const;
+
     FoundEntities neighbors(Point position, bool diag=false) const;
 
     void distance_sorted(SortedEntities& sorted_sprites, Point from, int max_distance);

systems.cpp

@@ -53,10 +53,9 @@ void System::lighting(GameLevel &level) {
 }
 
 void System::generate_paths(GameLevel &level) {
-  auto player = level.world->get_the<Player>();
-  const auto &player_position = level.world->get<Position>(player.entity);
+  const auto &player_pos = player_position(level);
 
-  level.map->set_target(player_position.location);
+  level.map->set_target(player_pos.location);
   level.map->make_paths();
 }
 
@@ -90,12 +89,10 @@ void System::enemy_ai_initialize(GameLevel &level) {
 void System::enemy_pathing(GameLevel &level) {
   auto &world = *level.world;
   auto &map = *level.map;
-  auto player = world.get_the<Player>();
-
-  const auto &player_position = world.get<Position>(player.entity);
+  const auto &player_pos = player_position(level);
 
   world.query<Position, Motion>([&](auto ent, auto &position, auto &motion) {
-    if(ent != player.entity) {
+    if(ent != level.player) {
       auto& enemy_ai = world.get<ai::EntityAI>(ent);
       Point out = position.location; // copy
 
@@ -109,7 +106,7 @@ void System::enemy_pathing(GameLevel &level) {
     }
   });
 
-  map.clear_target(player_position.location);
+  map.clear_target(player_pos.location);
 }
 
 
@@ -240,17 +237,16 @@ inline void animate_entity(World &world, Entity entity) {
 void System::combat(GameLevel &level, int attack_id) {
   auto &collider = *level.collision;
   auto &world = *level.world;
-  auto player = world.get_the<Player>();
   auto& the_belt = world.get_the<ritual::Belt>();
 
   if(!the_belt.has(attack_id)) return;
 
   auto& ritual = the_belt.get(attack_id);
-  const auto& player_position = world.get<Position>(player.entity);
-  auto& player_combat = world.get<Combat>(player.entity);
+  const auto& player_pos = player_position(level);
+  auto& player_combat = world.get<Combat>(level.player);
 
   // this is guaranteed to not return the given position
-  auto [found, nearby] = collider.neighbors(player_position.location);
+  auto [found, nearby] = collider.neighbors(player_pos.location);
   combat::BattleEngine battle;
 
   if(found) {
@@ -297,12 +293,10 @@ void System::combat(GameLevel &level, int attack_id) {
 void System::collision(GameLevel &level) {
   auto &collider = *level.collision;
   auto &world = *level.world;
-  auto player = world.get_the<Player>();
-
-  const auto& player_position = world.get<Position>(player.entity);
+  const auto& player_pos = player_position(level);
 
   // this is guaranteed to not return the given position
-  auto [found, nearby] = collider.neighbors(player_position.location);
+  auto [found, nearby] = collider.neighbors(player_pos.location);
   int combat_count = 0;
 
   // AI: I think also this would a possible place to run AI decisions
@@ -320,7 +314,7 @@ void System::collision(GameLevel &level) {
 
   if(combat_count == 0) {
     // BUG: this is probably how we get stuck in combat
-    world.send<Events::GUI>(Events::GUI::NO_NEIGHBORS, player.entity, player.entity);
+    world.send<Events::GUI>(Events::GUI::NO_NEIGHBORS, level.player, level.player);
   }
 }
 
@@ -337,13 +331,29 @@ void System::remove_from_world(GameLevel &level, Entity entity) {
   level.world->remove<Position>(entity);
 }
 
-void System::pickup(GameLevel &level, Entity entity) {
+void System::pickup(GameLevel &level) {
   auto &world = *level.world;
-  auto player = world.get_the<Player>();
+  auto &collision = *level.collision;
+  auto pos = player_position(level);
+
+  if(!collision.something_there(pos.aiming_at)) {
+    dbc::log("nothing there");
+    return;
+  }
+
+  auto entity = level.collision->find(pos.aiming_at, [&](auto data) -> bool {
+      return (world.has<InventoryItem>(data.entity) ||
+          world.has<Device>(data.entity));
+  });
 
-  if(world.has<InventoryItem>(entity)) {
+  if(entity == DinkyECS::NONE) {
+    dbc::log("no inventory or devices there");
+    return;
+  }
+
+  // use spatial find to find an item with inventory...
+  if(auto item = world.get_if<InventoryItem>(entity)) {
     // NOTE: this might need to be a separate system so that people can leave stuff alone
-    auto item = world.get<InventoryItem>(entity);
     remove_from_world(level, entity);
 
     if(world.has<ritual::JunkPile>(entity)) {
@@ -358,14 +368,15 @@ void System::pickup(GameLevel &level, Entity entity) {
       // NOTE: chests are different from say a torch, maybe 2 events or the
       // GUI figures out which it is, then when you click either pick it up
       // and move it or show the loot container UI
-      world.send<Events::GUI>(Events::GUI::LOOT_ITEM, entity, item);
+      world.send<Events::GUI>(Events::GUI::LOOT_ITEM, entity, *item);
     }
   } else if(world.has<Device>(entity)) {
-    System::device(world, player.entity, entity);
+    System::device(world, level.player, entity);
+  } else {
+    // Bug #81 is related to this
   }
 }
 
-
 void System::device(World &world, Entity actor, Entity item) {
   auto& device = world.get<Device>(item);
   dbc::log(fmt::format("entity {} INTERACTED WITH DEVICE {}", actor, item));
@@ -387,15 +398,14 @@ void System::device(World &world, Entity actor, Entity item) {
   }
 }
 
-void System::plan_motion(World& world, Position move_to) {
-  auto& player = world.get_the<Player>();
-  auto& player_position = world.get<Position>(player.entity);
+void System::plan_motion(GameLevel& level, Position move_to) {
+  auto& player_pos = player_position(level);
 
-  player_position.aiming_at = move_to.aiming_at;
+  player_pos.aiming_at = move_to.aiming_at;
 
-  auto& motion = world.get<Motion>(player.entity);
-  motion.dx = move_to.location.x - player_position.location.x;
-  motion.dy = move_to.location.y - player_position.location.y;
+  auto& motion = level.world->get<Motion>(level.player);
+  motion.dx = move_to.location.x - player_pos.location.x;
+  motion.dy = move_to.location.y - player_pos.location.y;
 }
 
 

systems.hpp

@@ -17,7 +17,7 @@ namespace System {
   void enemy_ai_initialize(GameLevel &level);
 
   void device(World &world, Entity actor, Entity item);
-  void plan_motion(World& world, Position move_to);
+  void plan_motion(GameLevel& level, Position move_to);
   Entity spawn_item(World& world, const string& name);
   void drop_item(GameLevel& level, Entity item);
 
@@ -28,7 +28,7 @@ namespace System {
   void player_status(GameLevel &level);
   void distribute_loot(GameLevel &level, Position target_pos);
 
-  void pickup(GameLevel &level, Entity entity);
+  void pickup(GameLevel &level);
 
   bool place_in_container(World& world, Entity cont_id, const string& name, Entity world_entity);
 

tests/spatialmap.cpp

@@ -5,6 +5,7 @@
 #include "dinkyecs.hpp"
 #include "rand.hpp"
 #include <limits>
+#include <fmt/core.h>
 
 using DinkyECS::Entity;
 using namespace fmt;
@@ -157,6 +158,34 @@ TEST_CASE("SpatialMap::get", "[spatialmap]") {
   REQUIRE(entity == item);
 }
 
+TEST_CASE("SpatialMap::find", "[spatialmap-find]") {
+  DinkyECS::World world;
+  SpatialMap map;
+  Point at{101, 31};
+  DinkyECS::Entity should_collide = DinkyECS::NONE;
+
+  for(int i = 0; i < 10; i++) {
+    auto ent = world.entity();
+    map.insert(at, ent, i == 8);
+
+    if(i == 8) {
+      should_collide = ent;
+    }
+  }
+
+  auto collision = map.find(at, [&](auto data) -> bool {
+      return data.collision;
+  });
+
+  REQUIRE(collision == should_collide);
+
+  auto no_collide = map.find(at, [&](auto data) -> bool {
+      return !data.collision;
+  });
+
+  REQUIRE(no_collide != should_collide);
+}
+
 TEST_CASE("SpatialMap::neighbors", "[spatialmap]") {
   DinkyECS::World world;
   SpatialMap map;