Add basic game loop

as6/Components.hpp

@@ -1,11 +1,13 @@
 #pragma once
 
 #include "Entity.hpp"
+#include "GameContext.hpp"
 
 #include "raylib.h"
 
 #include <algorithm>
 #include <cmath>
+#include <functional>
 
 struct TransformComponent : public Component {
     float x = 0.0f;
@@ -51,7 +53,6 @@ struct GravityWellComponent : public Component {
             return;
         }
 
-        // TODO: use buffered input
         active = IsMouseButtonDown(MOUSE_BUTTON_LEFT);
 
         const Vector2 mouse = GetMousePosition();
@@ -63,44 +64,35 @@ struct GravityWellComponent : public Component {
     void Cleanup() override {}
 };
 
-struct GravityReceiverComponent : public Component {
+struct ScrollComponent : public Component {
-    Entity *well = nullptr;
+    float scrollX = 0.0f;
-    bool inVoid = false;
+    float speed = 2.0f;
+    float accel = 0.018f;
     void Setup() override {}
     void Update(float dt) override {
-        (void)inVoid;
+        speed += accel * dt;
-
+        scrollX += speed * dt * 60.0f;
-        if (!well) {
+        if (context) {
-            return;
+            context->scrollX = scrollX;
         }
-
-        auto myTransform = entity->GetComponent<TransformComponent>();
-        auto physics = entity->GetComponent<PhysicsComponent>();
-        auto wellTransform = well->GetComponent<TransformComponent>();
-        auto wellGravity = well->GetComponent<GravityWellComponent>();
-        if (!myTransform || !physics || !wellTransform || !wellGravity) {
-            return;
     }
+    void Cleanup() override {}
+};
 
-        if (!wellGravity->get().active) {
+struct MeterComponent : public Component {
-            return;
+    float value = 60.0f;
-        }
+    float maxValue = 100.0f;
+    float drainRate = 14.0f;
+    float gainPerStar = 28.0f;
+    void Setup() override {}
+    void Update(float) override {}
+    void Cleanup() override {}
+};
 
-        const float dx = wellTransform->get().x - myTransform->get().x;
+struct NullZoneComponent : public Component {
-        const float dy = wellTransform->get().y - myTransform->get().y;
+    float width = 70.0f;
-        const float dist = std::sqrt(dx * dx + dy * dy);
+    void Setup() override {}
-        if (dist <= 0.0001f) {
+    void Update(float) override {}
-            return;
-        }
-
-        const float clampedDist = std::max(dist, wellGravity->get().minDist);
-        const float force = wellGravity->get().mass / (clampedDist * clampedDist);
-        const float nx = dx / dist;
-        const float ny = dy / dist;
-
-        physics->get().vx += nx * force * dt;
-        physics->get().vy += ny * force * dt;
-    }
     void Cleanup() override {}
 };
 
@@ -111,22 +103,21 @@ struct ColliderComponent : public Component {
     void Cleanup() override {}
 };
 
-struct ScrollComponent : public Component {
-    float scrollX = 0.0f;
-    float speed = 2.0f;
-    float accel = 0.018f;
-    void Setup() override {}
-    void Update(float dt) override {
-        speed += accel * dt;
-        scrollX += speed * dt * 60.0f;
-    }
-    void Cleanup() override {}
-};
-
 struct ScrollableComponent : public Component {
     float worldX = 0.0f;
     void Setup() override {}
-    void Update(float) override {}
+    void Update(float) override {
+        if (!context) {
+            return;
+        }
+
+        auto transform = entity->GetComponent<TransformComponent>();
+        if (!transform) {
+            return;
+        }
+
+        transform->get().x = worldX - context->scrollX;
+    }
     void Cleanup() override {}
 };
 
@@ -149,10 +140,212 @@ struct ProjectionComponent : public Component {
     void Cleanup() override {}
 };
 
-struct MeterComponent : public Component {
+struct CollectibleComponent : public Component {
-    float value = 60.0f;
+    bool collected = false;
     void Setup() override {}
-    void Update(float) override {}
+    void Update(float) override {
+        if (collected || !context || !context->probeEntity || entity == context->probeEntity) {
+            return;
+        }
+
+        auto selfTransform = entity->GetComponent<TransformComponent>();
+        auto selfCollider = entity->GetComponent<ColliderComponent>();
+        auto probeTransform = context->probeEntity->GetComponent<TransformComponent>();
+        auto probeCollider = context->probeEntity->GetComponent<ColliderComponent>();
+        if (!selfTransform || !selfCollider || !probeTransform || !probeCollider) {
+            return;
+        }
+
+        const float dx = selfTransform->get().x - probeTransform->get().x;
+        const float dy = selfTransform->get().y - probeTransform->get().y;
+        const float r = selfCollider->get().radius + probeCollider->get().radius;
+        if ((dx * dx + dy * dy) > (r * r)) {
+            return;
+        }
+
+        collected = true;
+
+        if (!context->hudEntity) {
+            return;
+        }
+
+        auto meter = context->hudEntity->GetComponent<MeterComponent>();
+        if (!meter) {
+            return;
+        }
+
+        meter->get().value =
+            std::min(meter->get().maxValue, meter->get().value + meter->get().gainPerStar);
+    }
+    void Cleanup() override {}
+};
+
+struct HazardComponent : public Component {
+    void Setup() override {}
+    void Update(float) override {
+        if (!context || !context->probeEntity || entity == context->probeEntity) {
+            return;
+        }
+
+        auto selfTransform = entity->GetComponent<TransformComponent>();
+        auto selfCollider = entity->GetComponent<ColliderComponent>();
+        auto probeTransform = context->probeEntity->GetComponent<TransformComponent>();
+        auto probeCollider = context->probeEntity->GetComponent<ColliderComponent>();
+        if (!selfTransform || !selfCollider || !probeTransform || !probeCollider) {
+            return;
+        }
+
+        const float dx = selfTransform->get().x - probeTransform->get().x;
+        const float dy = selfTransform->get().y - probeTransform->get().y;
+        const float r = selfCollider->get().radius + probeCollider->get().radius;
+        if ((dx * dx + dy * dy) <= (r * r)) {
+            context->resetRequested = true;
+        }
+    }
+    void Cleanup() override {}
+};
+
+struct GravityReceiverComponent : public Component {
+    Entity *well = nullptr;
+    bool inVoid = false;
+    void Setup() override {}
+    void Update(float dt) override {
+        if (!context || !context->probeEntity || entity != context->probeEntity) {
+            return;
+        }
+
+        if (!well && context->wellEntity) {
+            well = context->wellEntity;
+        }
+        if (!well) {
+            return;
+        }
+
+        auto myTransform = entity->GetComponent<TransformComponent>();
+        auto physics = entity->GetComponent<PhysicsComponent>();
+        auto wellTransform = well->GetComponent<TransformComponent>();
+        auto wellGravity = well->GetComponent<GravityWellComponent>();
+        if (!myTransform || !physics || !wellTransform || !wellGravity) {
+            return;
+        }
+
+        MeterComponent *meterPtr = nullptr;
+        if (context->hudEntity) {
+            auto meter = context->hudEntity->GetComponent<MeterComponent>();
+            if (meter) {
+                meterPtr = &meter->get();
+            }
+        }
+
+        if (!wellGravity->get().active) {
+            return;
+        }
+        if (meterPtr && meterPtr->value <= 0.0f) {
+            return;
+        }
+
+        inVoid = false;
+        if (context->entities) {
+            for (auto &other : *context->entities) {
+                if (!other || other.get() == entity) {
+                    continue;
+                }
+
+                auto zone = other->GetComponent<NullZoneComponent>();
+                auto zoneTransform = other->GetComponent<TransformComponent>();
+                if (!zone || !zoneTransform) {
+                    continue;
+                }
+
+                const float left = zoneTransform->get().x;
+                const float right = left + zone->get().width;
+                if (myTransform->get().x >= left && myTransform->get().x <= right) {
+                    inVoid = true;
+                    break;
+                }
+            }
+        }
+        if (inVoid) {
+            return;
+        }
+
+        const float dx = wellTransform->get().x - myTransform->get().x;
+        const float dy = wellTransform->get().y - myTransform->get().y;
+        const float dist = std::sqrt(dx * dx + dy * dy);
+        if (dist <= 0.0001f) {
+            return;
+        }
+
+        const float clampedDist = std::max(dist, wellGravity->get().minDist);
+        const float force = wellGravity->get().mass / (clampedDist * clampedDist);
+        const float nx = dx / dist;
+        const float ny = dy / dist;
+
+        physics->get().vx += nx * force * dt;
+        physics->get().vy += ny * force * dt;
+
+        if (meterPtr) {
+            meterPtr->value = std::max(0.0f, meterPtr->value - meterPtr->drainRate * dt);
+        }
+    }
+    void Cleanup() override {}
+};
+
+struct ProbeStateComponent : public Component {
+    float spawnX = 96.0f;
+    float spawnY = 230.0f;
+    float spawnVx = 165.0f;
+    float spawnVy = 0.0f;
+
+    void Setup() override {}
+    void Update(float) override {
+        if (!context || !context->probeEntity || entity != context->probeEntity) {
+            return;
+        }
+
+        auto transform = entity->GetComponent<TransformComponent>();
+        auto physics = entity->GetComponent<PhysicsComponent>();
+        if (!transform || !physics) {
+            return;
+        }
+
+        if (transform->get().y < -20.0f ||
+            transform->get().y > static_cast<float>(GetScreenHeight() + 20) ||
+            transform->get().x < -20.0f) {
+            context->resetRequested = true;
+        }
+
+        if (!context->resetRequested) {
+            return;
+        }
+
+        transform->get().x = spawnX;
+        transform->get().y = spawnY;
+        physics->get().vx = spawnVx;
+        physics->get().vy = spawnVy;
+
+        if (context->hudEntity) {
+            auto meter = context->hudEntity->GetComponent<MeterComponent>();
+            if (meter) {
+                meter->get().value = 60.0f;
+            }
+        }
+
+        if (context->entities) {
+            for (auto &other : *context->entities) {
+                if (!other) {
+                    continue;
+                }
+
+                auto collectible = other->GetComponent<CollectibleComponent>();
+                if (collectible) {
+                    collectible->get().collected = false;
+                }
+            }
+        }
+
+        context->resetRequested = false;
+    }
     void Cleanup() override {}
 };
 
@@ -163,21 +356,14 @@ struct HudComponent : public Component {
 };
 
 struct RenderComponent : public Component {
-    virtual void Draw() {}
+    std::function<void()> draw;
-    void Setup() override {}
-    void Update(float) override {}
-    void Cleanup() override {}
-};
 
-struct NullZoneComponent : public Component {
+    virtual void Draw() {
-    float width = 70.0f;
+        if (draw) {
-    void Setup() override {}
+            draw();
-    void Update(float) override {}
+        }
-    void Cleanup() override {}
+    }
-};
 
-struct CollectibleComponent : public Component {
-    bool collected = false;
     void Setup() override {}
     void Update(float) override {}
     void Cleanup() override {}

as6/Entities.hpp

@@ -17,10 +17,25 @@ std::shared_ptr<Entity> CreateProbe() {
     physics.vy = 0.0f;
     physics.speedCap = 8192.0f;
 
-    e->AddComponent<ColliderComponent>();
+    auto &collider = e->AddComponent<ColliderComponent>();
+    collider.radius = 7.0f;
+
+    auto &probeState = e->AddComponent<ProbeStateComponent>();
+    probeState.spawnX = 96.0f;
+    probeState.spawnY = 230.0f;
+    probeState.spawnVx = 165.0f;
+    probeState.spawnVy = 0.0f;
+
     e->AddComponent<TrailComponent>();
     e->AddComponent<ProjectionComponent>();
-    e->AddComponent<RenderComponent>();
+    auto &render = e->AddComponent<RenderComponent>();
+    render.draw = [e]() {
+        auto transform = e->GetComponent<TransformComponent>();
+        if (!transform) {
+            return;
+        }
+        DrawCircleV({transform->get().x, transform->get().y}, 7.0f, Color{250, 244, 227, 255});
+    };
     return e;
 }
 
@@ -35,7 +50,15 @@ std::shared_ptr<Entity> CreateGravityWell() {
     well.minDist = 28.0f;
     well.followLerp = 12.0f;
 
-    e->AddComponent<RenderComponent>();
+    auto &render = e->AddComponent<RenderComponent>();
+    render.draw = [e]() {
+        auto transform = e->GetComponent<TransformComponent>();
+        if (!transform) {
+            return;
+        }
+        DrawCircleLines(static_cast<int>(transform->get().x), static_cast<int>(transform->get().y),
+                        18.0f, Color{86, 197, 255, 255});
+    };
     return e;
 }
 
@@ -46,9 +69,18 @@ std::shared_ptr<Entity> CreateStar(float x, float y) {
     t.y = y;
     auto &scrollable = e->AddComponent<ScrollableComponent>();
     scrollable.worldX = x;
-    e->AddComponent<ColliderComponent>();
+    auto &collider = e->AddComponent<ColliderComponent>();
+    collider.radius = 6.0f;
+
     e->AddComponent<CollectibleComponent>();
-    e->AddComponent<RenderComponent>();
+    auto &render = e->AddComponent<RenderComponent>();
+    render.draw = [e]() {
+        auto transform = e->GetComponent<TransformComponent>();
+        if (!transform) {
+            return;
+        }
+        DrawCircleV({transform->get().x, transform->get().y}, 6.0f, Color{255, 223, 86, 255});
+    };
     return e;
 }
 
@@ -59,8 +91,19 @@ std::shared_ptr<Entity> CreateAsteroid(float x, float y) {
     t.y = y;
     auto &scrollable = e->AddComponent<ScrollableComponent>();
     scrollable.worldX = x;
-    e->AddComponent<ColliderComponent>();
+    auto &collider = e->AddComponent<ColliderComponent>();
-    e->AddComponent<RenderComponent>();
+    collider.radius = 13.0f;
+
+    e->AddComponent<HazardComponent>();
+
+    auto &render = e->AddComponent<RenderComponent>();
+    render.draw = [e]() {
+        auto transform = e->GetComponent<TransformComponent>();
+        if (!transform) {
+            return;
+        }
+        DrawCircleV({transform->get().x, transform->get().y}, 13.0f, Color{116, 126, 142, 255});
+    };
     return e;
 }
 
@@ -73,7 +116,17 @@ std::shared_ptr<Entity> CreateNullZone(float x, float width) {
 
     auto &nullZone = e->AddComponent<NullZoneComponent>();
     nullZone.width = width;
-    e->AddComponent<RenderComponent>();
+    auto &render = e->AddComponent<RenderComponent>();
+    render.draw = [e]() {
+        auto transform = e->GetComponent<TransformComponent>();
+        auto zone = e->GetComponent<NullZoneComponent>();
+        if (!transform || !zone) {
+            return;
+        }
+
+        DrawRectangle(static_cast<int>(transform->get().x), 0, static_cast<int>(zone->get().width),
+                      GetScreenHeight(), Color{96, 64, 146, 80});
+    };
     return e;
 }
 
@@ -88,6 +141,20 @@ std::shared_ptr<Entity> CreateHUD() {
     auto e = std::make_shared<Entity>();
     e->AddComponent<MeterComponent>();
     e->AddComponent<HudComponent>();
-    e->AddComponent<RenderComponent>();
+    auto &render = e->AddComponent<RenderComponent>();
+    render.draw = [e]() {
+        auto meter = e->GetComponent<MeterComponent>();
+        if (!meter) {
+            return;
+        }
+
+        const float t = std::clamp(meter->get().value / 100.0f, 0.0f, 1.0f);
+        const int x = 14;
+        const int y = 86;
+        const int w = 240;
+        const int h = 14;
+        DrawRectangleLines(x, y, w, h, Color{125, 140, 165, 255});
+        DrawRectangle(x + 1, y + 1, static_cast<int>((w - 2) * t), h - 2, Color{60, 199, 178, 255});
+    };
     return e;
 }

as6/Entity.hpp

@@ -1,5 +1,7 @@
 #pragma once
 
+#include "GameContext.hpp"
+
 #include <concepts>
 #include <functional>
 #include <memory>
@@ -9,9 +11,17 @@
 struct Entity;
 class Component;
 
+/**
+ * Base interface that every component derives from. Each component keeps a
+ * backref to its owning entity plus the shared game context so it can read
+ * global state (scroll offset, meter, entity pointers, reset flags, etc.). The
+ * lifecycle follows a `Setup` / `Update` / `Cleanup` pattern invoked by the
+ * owning entity.
+ */
 class Component {
   public:
     Entity *entity = nullptr;
+    GameContext *context = nullptr;
 
     virtual void Setup() = 0;
     virtual void Update(float dt) = 0;
@@ -22,14 +32,45 @@ class Component {
 
 struct Entity {
     std::vector<std::shared_ptr<Component>> components;
+    GameContext *context = nullptr;
 
+    /**
+     * Injects the global game context/state so the entity and its components can
+     * stay in sync with the global scroll/meter/reset state and known
+     * entity references.
+     *
+     * @param ctx Current game-wide context containing globals like scroll, entity handles, and
+     * reset flags.
+     */
+    void SetContext(GameContext *ctx) {
+        context = ctx;
+        for (auto &component : components) {
+            component->context = ctx;
+        }
+    }
+
+    /**
+     * Adds a component of type T to the entity, wiring ownership, the game
+     * context, and calling `Setup` immediately.
+     *
+     * @tparam T Component subclass type to add.
+     * @return Reference to the newly created component.
+     */
     template <std::derived_from<Component> T> T &AddComponent() {
         auto &ptr = components.emplace_back(std::make_shared<T>());
         ptr->entity = this;
+        ptr->context = context;
         ptr->Setup();
         return static_cast<T &>(*ptr);
     }
 
+    /**
+     * Finds the first component of type T in this entity and returns a
+     * reference_wrapper if found.
+     *
+     * @tparam T Component subclass to get.
+     * @return Optional ref wrapper to the component if found, otherwise empty.
+     */
     template <std::derived_from<Component> T>
     std::optional<std::reference_wrapper<T>> GetComponent() const {
         for (auto &c : components) {
@@ -41,6 +82,12 @@ struct Entity {
         return {};
     }
 
+    /**
+     * Propagates the delta time to all owned components so they can run their
+     * per-frame logic while sharing the same global context state.
+     *
+     * @param dt Time elapsed since the last frame.
+     */
     void Update(float dt) {
         for (auto &c : components) {
             c->Update(dt);

as6/GameContext.hpp

@@ -0,0 +1,50 @@
+#pragma once
+
+#include <memory>
+#include <vector>
+
+struct Entity;
+
+/**
+ * Shared execution context that flows through every entity and component so
+ * they can read/write the global scroll, known entity handles, and reset state.
+ */
+struct GameContext {
+    /**
+     * Pointer to the global entity list stored in `main.cpp`, allowing systems
+     * or components to inspect/create entities.
+     */
+    std::vector<std::shared_ptr<Entity>> *entities = nullptr;
+
+    /**
+     * Entity that owns the static world geometry (terrain, background, etc.).
+     */
+    Entity *worldEntity = nullptr;
+
+    /**
+     * Entity representing the gravity well that drags collectibles/probe.
+     */
+    Entity *wellEntity = nullptr;
+
+    /**
+     * Entity for the player's probe input/state representation.
+     */
+    Entity *probeEntity = nullptr;
+
+    /**
+     * HUD entity that draws meter/score/probe status overlays.
+     */
+    Entity *hudEntity = nullptr;
+
+    /**
+     * Global horizontal scroll offset that components read to position
+     * themselves on screen.
+     */
+    float scrollX = 0.0f;
+
+    /**
+     * Flag that a component (usually reset button) can toggle to request the
+     * gameplay systems reset the probe/meter/collectibles.
+     */
+    bool resetRequested = false;
+};

as6/Systems.hpp

@@ -2,47 +2,26 @@
 
 #include "Components.hpp"
 #include "Entity.hpp"
+#include "GameContext.hpp"
+
 #include <memory>
 #include <vector>
 
-void UpdateAllSystems(std::vector<std::shared_ptr<Entity>> &entities, float deltaTime) {
+void UpdateAllSystems(std::vector<std::shared_ptr<Entity>> &entities, GameContext &context,
-    std::shared_ptr<Entity> worldEntity;
+                      float deltaTime) {
-    std::shared_ptr<Entity> wellEntity;
+    context.entities = &entities;
-    float scrollX = 0.0f;
+    context.worldEntity = (entities.size() > 0 && entities[0]) ? entities[0].get() : nullptr;
-
+    context.wellEntity = (entities.size() > 1 && entities[1]) ? entities[1].get() : nullptr;
-    if (!entities.empty()) {
+    context.probeEntity = (entities.size() > 2 && entities[2]) ? entities[2].get() : nullptr;
-        worldEntity = entities[0];
+    context.hudEntity = (!entities.empty() && entities.back()) ? entities.back().get() : nullptr;
-    }
-    if (entities.size() > 1) {
-        wellEntity = entities[1];
-    }
-
-    if (worldEntity) {
-        worldEntity->Update(deltaTime);
-        auto scroll = worldEntity->GetComponent<ScrollComponent>();
-        if (scroll) {
-            scrollX = scroll->get().scrollX;
-        }
-    }
-
-    if (wellEntity) {
-        wellEntity->Update(deltaTime);
-    }
 
     for (auto &entity : entities) {
-        if (entity == worldEntity || entity == wellEntity || !entity) {
+        if (!entity) {
             continue;
         }
 
-        auto receiver = entity->GetComponent<GravityReceiverComponent>();
+        if (entity->context != &context) {
-        if (receiver) {
+            entity->SetContext(&context);
-            receiver->get().well = wellEntity.get();
-        }
-
-        auto transform = entity->GetComponent<TransformComponent>();
-        auto scrollable = entity->GetComponent<ScrollableComponent>();
-        if (transform && scrollable) {
-            transform->get().x = scrollable->get().worldX - scrollX;
         }
 
         entity->Update(deltaTime);

as6/main.cpp

@@ -2,6 +2,7 @@
 #include "Draw.hpp"
 #include "Entities.hpp"
 #include "Entity.hpp"
+#include "GameContext.hpp"
 #include "Systems.hpp"
 
 #include "raylib-cpp.hpp"
@@ -14,6 +15,8 @@ int main() {
     std::vector<std::shared_ptr<Entity>> entities;
     entities.reserve(20);
 
+    GameContext context;
+
     entities.push_back(CreateWorld());
     entities.push_back(CreateGravityWell());
     entities.push_back(CreateProbe());
@@ -25,15 +28,11 @@ int main() {
     while (!window.ShouldClose()) {
         float dt = window.GetFrameTime();
 
-        UpdateAllSystems(entities, dt);
+        UpdateAllSystems(entities, context, dt);
 
         auto worldScroll = entities[0]->GetComponent<ScrollComponent>();
-        auto wellTransform = entities[1]->GetComponent<TransformComponent>();
         auto probeTransform = entities[2]->GetComponent<TransformComponent>();
-        auto starTransform = entities[3]->GetComponent<TransformComponent>();
+        auto hudMeter = entities.back()->GetComponent<MeterComponent>();
-        auto asteroidTransform = entities[4]->GetComponent<TransformComponent>();
-        auto nullTransform = entities[5]->GetComponent<TransformComponent>();
-        auto nullZone = entities[5]->GetComponent<NullZoneComponent>();
 
         window.BeginDrawing();
         window.ClearBackground(raylib::Color(11, 15, 26, 255));
@@ -50,32 +49,29 @@ int main() {
 
         if (probeTransform) {
             const auto &probe = probeTransform->get();
-            ::DrawCircleV({probe.x, probe.y}, 7.0f, raylib::Color(250, 244, 227, 255));
             raylib::DrawText(TextFormat("probe: (%.1f, %.1f)", probe.x, probe.y), 14, 60, 16,
                              raylib::Color(235, 215, 125, 255));
         }
 
-        if (wellTransform) {
+        if (hudMeter) {
-            const auto &well = wellTransform->get();
+            raylib::DrawText(TextFormat("meter: %.1f", hudMeter->get().value), 14, 80, 16,
-            ::DrawCircleLines(static_cast<int>(well.x), static_cast<int>(well.y), 18.0f,
+                             raylib::Color(120, 210, 190, 255));
-                              raylib::Color(86, 197, 255, 255));
         }
 
-        if (starTransform) {
+        for (auto &entity : entities) {
-            const auto &star = starTransform->get();
+            if (!entity) {
-            ::DrawCircleV({star.x, star.y}, 6.0f, raylib::Color(255, 223, 86, 255));
+                continue;
             }
 
-        if (asteroidTransform) {
+            auto collectible = entity->GetComponent<CollectibleComponent>();
-            const auto &asteroid = asteroidTransform->get();
+            if (collectible && collectible->get().collected) {
-            ::DrawCircleV({asteroid.x, asteroid.y}, 13.0f, raylib::Color(116, 126, 142, 255));
+                continue;
             }
 
-        if (nullTransform && nullZone) {
+            auto render = entity->GetComponent<RenderComponent>();
-            const auto &zone = nullTransform->get();
+            if (render) {
-            const int width = static_cast<int>(nullZone->get().width);
+                render->get().Draw();
-            ::DrawRectangle(static_cast<int>(zone.x), 0, width, GetScreenHeight(),
+            }
-                            raylib::Color(96, 64, 146, 80));
         }
 
         window.EndDrawing();