Add UI

as6/CMakeLists.txt

@@ -14,6 +14,7 @@ include(../assets/includeable.cmake)
 
 add_executable(as6-gravity-surfing
     main.cpp
+    raygui.cpp
     Draw.cpp
     Entities.cpp
     Systems.cpp
@@ -21,7 +22,6 @@ add_executable(as6-gravity-surfing
     components/PhysicsComponent.cpp
     components/GravityWellComponent.cpp
     components/ScrollComponent.cpp
-    components/MeterComponent.cpp
     components/NullZoneComponent.cpp
     components/ColliderComponent.cpp
     components/ScrollableComponent.cpp
@@ -33,13 +33,13 @@ add_executable(as6-gravity-surfing
     components/HazardComponent.cpp
     components/GravityReceiverComponent.cpp
     components/ProbeStateComponent.cpp
-    components/HudComponent.cpp
+    components/StatsComponent.cpp
     components/RenderComponent.cpp
     scene/StartMenuScene.cpp
     scene/GameplayScene.cpp
     scene/DeathScene.cpp
 )
-target_link_libraries(as6-gravity-surfing PUBLIC raylib raylib_cpp buffered-raylib)
+target_link_libraries(as6-gravity-surfing PUBLIC raylib raylib_cpp buffered-raylib raygui)
 
 target_include_directories(as6-gravity-surfing PRIVATE
     ${CMAKE_CURRENT_SOURCE_DIR}

as6/Components.hpp

@@ -5,9 +5,7 @@
 #include "components/GravityReceiverComponent.hpp"
 #include "components/GravityWellComponent.hpp"
 #include "components/HazardComponent.hpp"
-#include "components/HudComponent.hpp"
 #include "components/LifetimeComponent.hpp"
-#include "components/MeterComponent.hpp"
 #include "components/NullZoneComponent.hpp"
 #include "components/PhysicsComponent.hpp"
 #include "components/ProbeStateComponent.hpp"
@@ -16,5 +14,6 @@
 #include "components/ScrollComponent.hpp"
 #include "components/ScrollableComponent.hpp"
 #include "components/SpawnComponent.hpp"
+#include "components/StatsComponent.hpp"
 #include "components/TrailComponent.hpp"
 #include "components/TransformComponent.hpp"

as6/EnergyBarRaygui.hpp

@@ -0,0 +1,46 @@
+/*******************************************************************************************
+ *
+ *   LayoutName v1.0.0 - Tool Description
+ *
+ *   LICENSE: Propietary License
+ *
+ *   Copyright (c) 2022 raylib technologies. All Rights Reserved.
+ *
+ *   Unauthorized copying of this file, via any medium is strictly prohibited
+ *   This project is proprietary and confidential unless the owner allows
+ *   usage in any other form by expresely written permission.
+ *
+ **********************************************************************************************/
+
+#pragma once
+
+#include "raygui.h"
+#include "raylib.h"
+
+inline constexpr int WINDOW_WIDTH = 700;
+inline constexpr int WINDOW_HEIGHT = 460;
+
+//----------------------------------------------------------------------------------
+// Controls Functions Declaration
+//----------------------------------------------------------------------------------
+
+inline void DrawHud(float value, int stars) {
+    GuiProgressBar((Rectangle){72, 440, 120, 16}, "ENERGY", nullptr, value, 0, 1);
+    GuiLabel((Rectangle){24, 8, 120, 24}, TextFormat("STARS: x%d", stars));
+}
+
+inline void DrawMainMenu() {
+    GuiLabel((Rectangle){WINDOW_WIDTH / 2 - 100, WINDOW_HEIGHT / 2 - 60, 200, 40},
+             "GRAVITY SURFING");
+
+    GuiLabel((Rectangle){WINDOW_WIDTH / 2 - 200, WINDOW_HEIGHT / 2, 400, 60},
+             "LEFT CLICK to turn on gravity well and attract probe\n"
+             "Avoid hazards and collect stars to keep your meter from draining\n"
+             "If your meter runs out, gravity well turns off and you lose control\n"
+             "until you collect another star\n"
+             "Press SPACE or LEFT CLICK to start");
+}
+
+//------------------------------------------------------------------------------------
+// Controls Functions Definitions (local)
+//------------------------------------------------------------------------------------

as6/Entities.cpp

@@ -2,7 +2,8 @@
 
 #include "Components.hpp"
 
-#include "raylib.h"
+#include "EnergyBarRaygui.hpp"
+#include <algorithm>
 
 std::shared_ptr<Entity> CreateProbe() {
     auto e = std::make_shared<Entity>();
@@ -13,7 +14,7 @@ std::shared_ptr<Entity> CreateProbe() {
     e->AddComponent<GravityReceiverComponent>();
 
     auto &physics = e->AddComponent<PhysicsComponent>();
-    physics.vx = 108.0f;
+    physics.vx = 16.0f;
     physics.vy = 0.0f;
     physics.speedCap = 8192.0f;
 
@@ -41,8 +42,7 @@ std::shared_ptr<Entity> CreateProbe() {
 
         DrawCircleV({transform->get().x, transform->get().y}, 7.0f, PROBE_COLOR);
 
-        DrawCircleV({transform->get().x - 1, transform->get().y - 1}, 3.0f,
-                    PROBE_HIGHLIGHT);
+        DrawCircleV({transform->get().x - 1, transform->get().y - 1}, 3.0f, PROBE_HIGHLIGHT);
     };
     return e;
 }
@@ -164,8 +164,7 @@ std::shared_ptr<Entity> CreateNullZone(float x, float width) {
 
         int x = (int)(transform->get().x);
 
-        DrawRectangle(x, 0, (int)(zone->get().width),
-                      GetScreenHeight(), Color{96, 64, 146, 80});
+        DrawRectangle(x, 0, (int)(zone->get().width), GetScreenHeight(), Color{96, 64, 146, 80});
 
         DrawText("Null Zone", x + 8, 12, 16, Color{96, 64, 146, 200});
     };
@@ -179,24 +178,18 @@ std::shared_ptr<Entity> CreateWorld() {
     return e;
 }
 
-std::shared_ptr<Entity> CreateHUD() {
+std::shared_ptr<Entity> CreateStats() {
     auto e = std::make_shared<Entity>();
-    e->AddComponent<MeterComponent>();
-    e->AddComponent<HudComponent>();
+    e->AddComponent<StatsComponent>();
     auto &render = e->AddComponent<RenderComponent>();
     render.draw = [e]() {
-        auto meter = e->GetComponent<MeterComponent>();
-        if (!meter) {
+        auto stats = e->GetComponent<StatsComponent>();
+        if (!stats) {
             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});
+        const float ratio = std::clamp(stats->get().value / stats->get().maxValue, 0.0f, 1.0f);
+        DrawHud(ratio, stats->get().GetStarCount());
     };
     return e;
 }

as6/Entities.hpp

@@ -11,4 +11,4 @@ std::shared_ptr<Entity> CreateAsteroid(float x, float y);
 std::shared_ptr<Entity> CreateDebris(float x, float y, float vx, float vy, float ttl = 1.25f);
 std::shared_ptr<Entity> CreateNullZone(float x, float width);
 std::shared_ptr<Entity> CreateWorld();
-std::shared_ptr<Entity> CreateHUD();
+std::shared_ptr<Entity> CreateStats();

as6/GameContext.hpp

@@ -21,8 +21,8 @@ struct GameContext {
     Entity *wellEntity = nullptr;
     /** @brief Player probe entity. */
     Entity *probeEntity = nullptr;
-    /** @brief HUD entity. */
-    Entity *hudEntity = nullptr;
+    /** @brief Stats entity that owns meter + star records. */
+    Entity *statsEntity = nullptr;
 
     /** @brief Shared horizontal world scroll value. */
     float scrollX = 0.0f;

as6/components/CollectibleComponent.cpp

@@ -2,7 +2,7 @@
 
 #include "Entity.hpp"
 #include "components/ColliderComponent.hpp"
-#include "components/MeterComponent.hpp"
+#include "components/StatsComponent.hpp"
 
 void CollectibleComponent::Setup() {
     auto selfCollider = entity->GetComponent<ColliderComponent>();
@@ -21,16 +21,13 @@ void CollectibleComponent::Setup() {
         context->EmitCollectiblePicked(*entity);
         entity->QueueFree();
 
-        if (!context->hudEntity) {
-            return;
+        if (context->statsEntity) {
+            auto stats = context->statsEntity->GetComponent<StatsComponent>();
+            if (stats) {
+                stats->get().AddValue(stats->get().gainPerStar);
+                stats->get().AddStar();
             }
-
-        auto meter = context->hudEntity->GetComponent<MeterComponent>();
-        if (!meter) {
-            return;
         }
-
-        meter->get().AddValue(meter->get().gainPerStar);
     });
 }
 

as6/components/GravityReceiverComponent.cpp

@@ -2,9 +2,9 @@
 
 #include "Entity.hpp"
 #include "components/GravityWellComponent.hpp"
-#include "components/MeterComponent.hpp"
 #include "components/NullZoneComponent.hpp"
 #include "components/PhysicsComponent.hpp"
+#include "components/StatsComponent.hpp"
 #include "components/TransformComponent.hpp"
 
 #include <algorithm>
@@ -32,18 +32,18 @@ void GravityReceiverComponent::Update(float dt) {
         return;
     }
 
-    MeterComponent *meterPtr = nullptr;
-    if (context->hudEntity) {
-        auto meter = context->hudEntity->GetComponent<MeterComponent>();
-        if (meter) {
-            meterPtr = &meter->get();
+    StatsComponent *statsPtr = nullptr;
+    if (context->statsEntity) {
+        auto stats = context->statsEntity->GetComponent<StatsComponent>();
+        if (stats) {
+            statsPtr = &stats->get();
         }
     }
 
     if (!wellGravity->get().active) {
         return;
     }
-    if (meterPtr && meterPtr->value <= 0.0f) {
+    if (statsPtr && statsPtr->value <= 0.0f) {
         return;
     }
 
@@ -87,8 +87,8 @@ void GravityReceiverComponent::Update(float dt) {
     physics->get().vx += nx * force * dt;
     physics->get().vy += ny * force * dt;
 
-    if (meterPtr) {
-        meterPtr->Drain(meterPtr->drainRate * dt);
+    if (statsPtr) {
+        statsPtr->Drain(statsPtr->drainRate * dt);
     }
 }
 

as6/components/HudComponent.cpp

@@ -1,5 +0,0 @@
-#include "components/HudComponent.hpp"
-
-void HudComponent::Setup() {}
-void HudComponent::Update(float) {}
-void HudComponent::Cleanup() {}

as6/components/HudComponent.hpp

@@ -1,12 +0,0 @@
-#pragma once
-
-#include "Component.hpp"
-
-/**
- * Marker component for HUD entities.
- */
-struct HudComponent : public Component {
-    void Setup() override;
-    void Update(float dt) override;
-    void Cleanup() override;
-};

as6/components/MeterComponent.cpp

@@ -1,21 +0,0 @@
-#include "components/MeterComponent.hpp"
-
-#include <algorithm>
-
-void MeterComponent::Setup() {}
-
-void MeterComponent::SetValue(float newValue) {
-    const float oldValue = value;
-    value = newValue;
-    if (context && oldValue != value) {
-        context->EmitMeterChanged(oldValue, value);
-    }
-}
-
-void MeterComponent::AddValue(float delta) { SetValue(std::clamp(value + delta, 0.0f, maxValue)); }
-
-void MeterComponent::Drain(float amount) { AddValue(-amount); }
-
-void MeterComponent::Update(float) {}
-
-void MeterComponent::Cleanup() {}

as6/components/PhysicsComponent.cpp

@@ -2,8 +2,8 @@
 
 #include "Entity.hpp"
 #include "components/GravityWellComponent.hpp"
-#include "components/MeterComponent.hpp"
 #include "components/NullZoneComponent.hpp"
+#include "components/StatsComponent.hpp"
 #include "components/TransformComponent.hpp"
 
 #include <algorithm>
@@ -87,9 +87,9 @@ bool PhysicsComponent::ComputeWellDeltaVelocity(double px, double py, double dt,
     }
 
     // Probe cannot receive well acceleration when meter is depleted.
-    if (context && entity == context->probeEntity && context->hudEntity) {
-        auto meter = context->hudEntity->GetComponent<MeterComponent>();
-        if (meter && meter->get().value <= 0.0f) {
+    if (context && entity == context->probeEntity && context->statsEntity) {
+        auto stats = context->statsEntity->GetComponent<StatsComponent>();
+        if (stats && stats->get().value <= 0.0f) {
             return false;
         }
     }

as6/components/StatsComponent.cpp

@@ -0,0 +1,23 @@
+#include "components/StatsComponent.hpp"
+
+void StatsComponent::Setup() {}
+
+void StatsComponent::SetValue(float newValue) {
+    const float oldValue = value;
+    value = newValue;
+    if (context && oldValue != value) {
+        context->EmitMeterChanged(oldValue, value);
+    }
+}
+
+void StatsComponent::AddValue(float delta) { SetValue(std::clamp(value + delta, 0.0f, maxValue)); }
+
+void StatsComponent::Drain(float amount) { AddValue(-amount); }
+
+void StatsComponent::AddStar() { ++stars; }
+
+int StatsComponent::GetStarCount() const { return stars; }
+
+void StatsComponent::Update(float) {}
+
+void StatsComponent::Cleanup() {}

as6/components/StatsComponent.hpp

@@ -5,18 +5,21 @@
 #include <algorithm>
 
 /**
- * Stores and mutates the player's gravity meter with change events.
+ * Stores persistent gameplay stats such as the gravity meter and collected stars.
  */
-struct MeterComponent : public Component {
+struct StatsComponent : public Component {
     float value = 60.0f;
     float maxValue = 100.0f;
     float drainRate = 14.0f;
     float gainPerStar = 28.0f;
+    int stars = 0;
 
     void Setup() override;
     void SetValue(float newValue);
     void AddValue(float delta);
     void Drain(float amount);
+    void AddStar();
+    int GetStarCount() const;
     void Update(float dt) override;
     void Cleanup() override;
 };

as6/main.cpp

@@ -1,5 +1,6 @@
 #include "Components.hpp"
 #include "Draw.hpp"
+#include "EnergyBarRaygui.hpp"
 #include "Entities.hpp"
 #include "Entity.hpp"
 #include "GameContext.hpp"

as6/raygui.cpp

@@ -0,0 +1,2 @@
+#define RAYGUI_IMPLEMENTATION
+#include "raygui.h"

as6/scene/DeathScene.cpp

@@ -16,8 +16,5 @@ void DeathScene::Update(float) {
 }
 
 void DeathScene::Draw() {
-    DrawSceneOutline();
-    DrawText("PROBE LOST", 24, 28, 36, Color{255, 208, 208, 255});
-    DrawText("Press Enter or click to restart", 24, 84, 22, Color{255, 170, 170, 255});
-    DrawText("Press Esc for menu", 24, 116, 20, Color{200, 188, 188, 255});
+    Scene::Draw();
 }

as6/scene/GameplayScene.cpp

@@ -1,5 +1,6 @@
 #include "scene/GameplayScene.hpp"
 
+#include "EnergyBarRaygui.hpp"
 #include "scene/DeathScene.hpp"
 #include "scene/SceneManager.hpp"
 
@@ -36,12 +37,12 @@ void GameplayScene::Enter() {
     entities.emplace_back(CreateStar(900.0f, 230.0f));
     entities.emplace_back(CreateNullZone(1280.0f, 120.0f));
 
-    context.hudEntity = entities.emplace_back(CreateHUD()).get();
+    context.statsEntity = entities.emplace_back(CreateStats()).get();
 
-    if (context.hudEntity) {
-        auto meter = context.hudEntity->GetComponent<MeterComponent>();
-        if (meter) {
-            meterValue = meter->get().value;
+    if (context.statsEntity) {
+        auto stats = context.statsEntity->GetComponent<StatsComponent>();
+        if (stats) {
+            meterValue = stats->get().value;
         }
     }
 
@@ -64,9 +65,6 @@ void GameplayScene::Update(float dt) {
 }
 
 void GameplayScene::Draw() {
-    DrawSceneOutline();
-    DrawText("Gravity Surfing", 14, 12, 20, Color{230, 238, 255, 255});
-
     std::optional<std::reference_wrapper<ScrollComponent>> worldScroll;
     if (context.worldEntity) {
         worldScroll = context.worldEntity->GetComponent<ScrollComponent>();
@@ -77,28 +75,5 @@ void GameplayScene::Draw() {
         probeTransform = context.probeEntity->GetComponent<TransformComponent>();
     }
 
-    if (worldScroll) {
-        DrawText(TextFormat("scrollX: %.2f", worldScroll->get().scrollX), 14, 40, 16,
-                 Color{125, 225, 205, 255});
-    }
-
-    if (probeTransform) {
-        const auto &probe = probeTransform->get();
-        DrawText(TextFormat("probe: (%.1f, %.1f)", probe.x, probe.y), 14, 60, 16,
-                 Color{235, 215, 125, 255});
-    }
-
-    DrawText(TextFormat("meter: %.1f", meterValue), 14, 80, 16, Color{120, 210, 190, 255});
-    DrawText(TextFormat("stars: %i", collectedCount), 14, 100, 16, Color{255, 223, 86, 255});
-
-    for (auto &entity : entities) {
-        if (!entity || entity->queuedForFree) {
-            continue;
-        }
-
-        auto render = entity->GetComponent<RenderComponent>();
-        if (render) {
-            render->get().Draw();
-        }
-    }
+    Scene::Draw();
 }

as6/scene/GameplayScene.hpp

@@ -25,7 +25,6 @@ class GameplayScene : public Scene {
     void Draw() override;
 
   private:
-    std::vector<std::shared_ptr<Entity>> entities;
     GameContext context;
     bool wantsDeathScene = false;
     int collectedCount = 0;

as6/scene/Scene.hpp

@@ -1,5 +1,8 @@
 #pragma once
 
+#include "Components.hpp"
+#include "Entity.hpp"
+
 class SceneManager;
 
 /**
@@ -7,13 +10,25 @@ class SceneManager;
  */
 class Scene {
   public:
+    std::vector<std::shared_ptr<Entity>> entities;
     explicit Scene(SceneManager &owner) : manager(owner) {}
     virtual ~Scene() = default;
 
     virtual void Enter() {}
     virtual void Exit() {}
     virtual void Update(float dt) = 0;
-    virtual void Draw() = 0;
+    virtual void Draw() {
+        for (auto &entity : entities) {
+            if (!entity || entity->queuedForFree) {
+                continue;
+            }
+
+            auto render = entity->GetComponent<RenderComponent>();
+            if (render) {
+                render->get().Draw();
+            }
+        }
+    }
 
   protected:
     SceneManager &manager;

as6/scene/StartMenuScene.cpp

@@ -1,5 +1,6 @@
 #include "scene/StartMenuScene.hpp"
 
+#include "EnergyBarRaygui.hpp"
 #include "scene/GameplayScene.hpp"
 #include "scene/SceneManager.hpp"
 
@@ -10,9 +11,6 @@ void StartMenuScene::Update(float) {
 }
 
 void StartMenuScene::Draw() {
-    DrawSceneOutline();
-    DrawText("Gravity Surfing", 24, 28, 36, Color{230, 238, 255, 255});
-    DrawText("Click or press Enter to start", 24, 78, 22, Color{140, 198, 220, 255});
-    DrawText("Left mouse controls gravity well", 24, 130, 18, Color{170, 185, 205, 255});
-    DrawText("Collect stars and dodge hazards", 24, 156, 18, Color{170, 185, 205, 255});
+    DrawMainMenu();
+    Scene::Draw();
 }