Mostly working overlay to show when in combat or not.

guecs.hpp

@@ -163,6 +163,15 @@ namespace guecs {
           return $world.get<Comp>(entity);
         }
 
+      template <typename Comp>
+        std::optional<Comp> get_if(DinkyECS::Entity entity) {
+          if($world.has<Comp>(entity)) {
+            return std::make_optional<Comp>($world.get<Comp>(entity));
+          } else {
+            return std::nullopt;
+          }
+        }
+
       template <typename Comp>
         void remove(DinkyECS::Entity ent) {
           $world.remove<Comp>(ent);

gui.cpp

@@ -157,6 +157,7 @@ namespace gui {
         state(State::ATTACKING);
         break;
       case START_COMBAT:
+        $overlay_view.show_sprite("top_right", "cinqueda");
         state(State::IN_COMBAT);
         break;
       case CLOSE:
@@ -188,6 +189,7 @@ namespace gui {
         state(State::COMBAT_ROTATE);
         break;
       case STOP_COMBAT:
+        $overlay_view.close_sprite("top_right");
         state(State::IDLE);
         break;
       case QUIT:
@@ -273,10 +275,10 @@ namespace gui {
       auto& player_combat = $level.world->get<Combat>(player.entity);
       player_combat.hp = player_combat.max_hp;
       $combat_view.set_damage(float(player_combat.hp) / float(player_combat.max_hp));
-      $overlay_view.init_stats();
+      $overlay_view.show_text("top_left", "STATS");
     } else {
       // it's off now, close it
-      $overlay_view.close_stats();
+      $overlay_view.close_text("top_left");
     }
   }
 
@@ -297,14 +299,17 @@ namespace gui {
           $stats.max, $stats.n, VSYNC,
           FRAME_LIMIT, DEBUG_BUILD);
 
-    $overlay_view.draw_stats(stats);
+    $overlay_view.update_text("top_left", stats);
   }
 
   void FSM::draw_blood() {
     auto player = $level.world->get_the<Player>();
     auto player_combat = $level.world->get<Combat>(player.entity);
-
+    if(float(player_combat.hp) / float(player_combat.max_hp) < 0.5) {
-    $overlay_view.show_damage(float(player_combat.hp) / float(player_combat.max_hp) < 0.5);
+      $overlay_view.show_sprite("middle", "blood_splatter");
+    } else {
+      $overlay_view.close_sprite("middle");
+    }
   }
 
   void FSM::draw_gui() {

overlay_ui.cpp

@@ -2,9 +2,11 @@
 #include "constants.hpp"
 #include "color.hpp"
 #include "events.hpp"
+#include <optional>
 
 namespace gui {
   using namespace guecs;
+  using std::string;
 
   OverlayUI::OverlayUI(GameLevel level, TexturePack& textures) :
     $level(level),
@@ -33,36 +35,51 @@ namespace gui {
     $gui.render(window);
   }
 
-  void OverlayUI::show_damage(bool show) {
+  void OverlayUI::show_sprite(string region, string sprite_name) {
-    auto middle = $gui.entity("middle");
+    auto ent = $gui.entity(region);
+    Sprite blood{sprite_name};
+    auto& cell = $gui.cell_for(ent);
+    blood.init(cell, $textures);
+    $gui.set<guecs::Sprite>(ent, blood);
+  }
 
-    if(show) {
+  void OverlayUI::close_sprite(string region) {
-      Sprite blood{"blood_splatter"};
+    auto ent = $gui.entity(region);
-      auto& cell = $gui.cell_for(middle);
+    $gui.remove<guecs::Sprite>(ent);
-      blood.init(cell, $textures);
+  }
-      $gui.set<guecs::Sprite>(middle, blood);
+
-    } else {
+  void OverlayUI::show_text(string region, string content) {
-      $gui.remove<guecs::Sprite>(middle);
+    auto ent = $gui.entity(region);
+    auto &cell = $gui.cell_for(ent);
+    Textual text{content, 20};
+    text.init(cell, $gui.$font);
+    text.text->setFillColor(ColorValue::LIGHT_MID);
+    $gui.set<Textual>(ent, text);
+  }
+
+  void OverlayUI::update_text(string region, string content) {
+    auto ent = $gui.entity(region);
+    if(auto text = $gui.get_if<Textual>(ent)) {
+      text->text->setString(content);
     }
   }
 
-  void OverlayUI::init_stats() {
+  void OverlayUI::close_text(string region) {
-    auto top_left = $gui.entity("top_left");
+    auto ent = $gui.entity(region);
-    auto &cell = $gui.cell_for(top_left);
+    $gui.remove<Textual>(ent);
-    Textual text{"", 20};
+  }
+
+  void OverlayUI::show_label(string region, string content) {
+    auto ent = $gui.entity(region);
+    auto &cell = $gui.cell_for(ent);
+    Label text{content, 20};
     text.init(cell, $gui.$font);
     text.text->setFillColor(ColorValue::LIGHT_MID);
-    $gui.set<Textual>(top_left, text);
+    $gui.set<Label>(ent, text);
   }
 
-  void OverlayUI::draw_stats(std::string stats) {
+  void OverlayUI::close_label(string region) {
-    auto top_left = $gui.entity("top_left");
+    auto ent = $gui.entity(region);
-    auto& text = $gui.get<Textual>(top_left);
+    $gui.remove<Label>(ent);
-    text.text->setString(stats);
-  }
-
-  void OverlayUI::close_stats() {
-    auto top_left = $gui.entity("top_left");
-    $gui.remove<Textual>(top_left);
   }
 }

overlay_ui.hpp

@@ -16,9 +16,12 @@ namespace gui {
       void render();
       void draw(sf::RenderWindow& window);
       void click(int x, int y);
-      void show_damage(bool show);
+      void show_sprite(string region, string sprite_name);
-      void init_stats();
+      void close_sprite(string region);
-      void draw_stats(std::string stats);
+      void show_text(std::string region, std::string content);
-      void close_stats();
+      void update_text(std::string region, std::string content);
+      void close_text(std::string region);
+      void show_label(std::string region, std::string content);
+      void close_label(std::string region);
   };
 }