Moved the animated scene into its own system for better development.

scene.cpp

@@ -0,0 +1,150 @@
+#include "scene.hpp"
+#include "animation.hpp"
+
+const bool DEBUG=false;
+const bool YOU_REMOVED_MID_CELL_IDIOT=false;
+
+namespace scene {
+  using namespace guecs;
+
+  Engine::Engine(components::AnimatedScene& scene) :
+    $scene(scene)
+  {
+    for(auto& config : $scene.actors) {
+      std::string sprite_name = config["sprite"];
+      auto st = textures::get_sprite(sprite_name);
+      float scale_x = config["scale_x"];
+      float scale_y = config["scale_y"];
+
+      auto anim = animation::load(sprite_name);
+      anim.scale_x = scale_x;
+      anim.scale_y = scale_y;
+
+      auto& cell = config["cell"];
+      std::string key = config["name"];
+
+      dbc::check(!$actor_name_ids.contains(key),
+          fmt::format("actors key {} already exists", key));
+
+      $actors.emplace_back(st, anim, cell, scale_x, scale_y, 0, 0);
+      $actor_name_ids.try_emplace(key, $actors.size() - 1);
+    }
+
+    // floor is std::optional
+    if($scene.floor) {
+      $floor_sprite = textures::get_sprite(*$scene.floor);
+    }
+
+    for(auto& fixture : $scene.fixtures) {
+      std::string name = fixture["name"];
+      auto st = textures::get_sprite(name);
+      // clone the sprite so it can be positioned
+      st.sprite = std::make_shared<sf::Sprite>(*st.texture);
+      float scale_x = fixture["scale_x"];
+      float scale_y = fixture["scale_y"];
+
+      auto anim = animation::load(name);
+      anim.scale_x = scale_x;
+      anim.scale_y = scale_y;
+      anim.play();
+
+      std::string cell = fixture["cell"];
+      float x = fixture["x"];
+      float y = fixture["y"];
+
+      $fixtures.emplace_back(st, anim, cell, scale_x, scale_y, x, y);
+    }
+  }
+
+  void Engine::init() {
+    $ui.position(SCREEN_WIDTH-BOSS_VIEW_WIDTH,0, BOSS_VIEW_WIDTH, SCREEN_HEIGHT);
+    $ui.set<Background>($ui.MAIN, {$ui.$parser, THEME.TRANSPARENT});
+    auto& background = $ui.get<Background>($ui.MAIN);
+    background.set_sprite($scene.background, true);
+
+    $ui.layout(
+        "[status|boss1 |boss2 |boss3 |boss4 |_]"
+        "[torch1|boss5 |boss6 |boss7 |boss8 |torch2]"
+        "[floor1|boss9 |boss10|boss11|boss12|_]"
+        "[floor2|boss13|boss14|boss15|boss16|_]"
+        "[floor3|player1|player2|player3|player4|_]"
+        "[floor4|player5|player6|player7|player8|_]"
+        );
+
+    if($scene.floor) {
+      position_sprite($floor_sprite, $scene.floor_pos, 1.0f, 1.0f, false);
+    }
+
+    for(auto& actor : $actors) {
+      actor.pos = position_sprite(actor.st, actor.cell,
+          actor.scale_x, actor.scale_y, false, actor.x, actor.y);
+    }
+
+    for(auto& fixture : $fixtures) {
+      fixture.pos = position_sprite(fixture.st, fixture.cell,
+          fixture.scale_x, fixture.scale_y, false, fixture.x, fixture.y);
+    }
+  }
+
+  bool Engine::mouse(float x, float y, Modifiers mods) {
+    return $ui.mouse(x, y, mods);
+  }
+
+  sf::Vector2f Engine::position_sprite(textures::SpriteTexture& st, const std::string& cell_name, float scale_x, float scale_y, bool at_mid, float x_diff, float y_diff) {
+
+    auto& cell = $ui.cell_for(cell_name);
+    float x = float(at_mid ? cell.mid_x : cell.x);
+    float y = float(at_mid ? cell.mid_y : cell.y);
+
+    sf::Vector2f pos{x + x_diff, y + y_diff};
+    st.sprite->setPosition(pos);
+    st.sprite->setScale({scale_x, scale_y});
+
+    return pos;
+  }
+
+  void Engine::render(sf::RenderWindow& window) {
+    if($floor_sprite.sprite) {
+      window.draw(*$floor_sprite.sprite);
+    }
+
+    $ui.render(window);
+
+    for(auto& fixture : $fixtures) {
+      window.draw(*fixture.st.sprite);
+    }
+
+    for(auto& actor : $actors) {
+      window.draw(*actor.st.sprite);
+    }
+
+    if(DEBUG) $ui.debug_layout(window);
+  }
+
+
+  void Engine::move_actor(const std::string& actor, const std::string& cell_name) {
+    auto& config = $actors.at($actor_name_ids.at(actor));
+    config.cell = cell_name;
+    config.pos = position_sprite(config.st, config.cell, config.scale_x, config.scale_y, YOU_REMOVED_MID_CELL_IDIOT);
+  }
+
+  void Engine::animate_actor(const std::string& actor) {
+    auto& config = $actors.at($actor_name_ids.at(actor));
+    config.anim.play();
+  }
+
+  void Engine::play_animations() {
+    for(auto& fixture : $fixtures) {
+      if(fixture.anim.playing) {
+        animation::apply(fixture.anim, *fixture.st.sprite, fixture.pos);
+      }
+    }
+
+    for(auto& actor : $actors) {
+      if(actor.anim.playing) {
+        animation::apply(actor.anim, *actor.st.sprite, actor.pos);
+      }
+    }
+  }
+
+}