Add game framework and whitebox level

game/assets/shaders/colored_quad.frag

@@ -0,0 +1,8 @@
+#version 330 core
+in vec4 v_color;
+
+out vec4 FragColor;
+
+void main() {
+  FragColor = v_color;
+}

game/assets/shaders/colored_quad.vert

@@ -0,0 +1,14 @@
+#version 330 core
+layout (location = 0) in vec2 a_position;
+layout (location = 1) in vec2 a_texCoord;
+layout (location = 2) in vec4 a_color;
+
+uniform mat4 u_view;
+uniform mat4 u_projection;
+
+out vec4 v_color;
+
+void main() {
+  v_color = a_color;
+  gl_Position = u_projection * u_view * vec4(a_position, 0.0, 1.0);
+}

game/assets/shaders/shaders.json

@@ -0,0 +1,12 @@
+{
+  "shaders": {
+    "sprite": {
+      "vertex": "sprite.vert",
+      "fragment": "sprite.frag"
+    },
+    "colored_quad": {
+      "vertex": "colored_quad.vert",
+      "fragment": "colored_quad.frag"
+    }
+  }
+}

game/assets/shaders/sprite.frag

@@ -0,0 +1,11 @@
+#version 330 core
+in vec2 v_texCoord;
+in vec4 v_color;
+
+uniform sampler2D u_texture;
+
+out vec4 FragColor;
+
+void main() {
+  FragColor = texture(u_texture, v_texCoord) * v_color;
+}

game/assets/shaders/sprite.vert

@@ -0,0 +1,16 @@
+#version 330 core
+layout (location = 0) in vec2 a_position;
+layout (location = 1) in vec2 a_texCoord;
+layout (location = 2) in vec4 a_color;
+
+uniform mat4 u_view;
+uniform mat4 u_projection;
+
+out vec2 v_texCoord;
+out vec4 v_color;
+
+void main() {
+  v_texCoord = a_texCoord;
+  v_color = a_color;
+  gl_Position = u_projection * u_view * vec4(a_position, 0.0, 1.0);
+}

game/docs/ARCHITECTURE.md

@@ -0,0 +1,112 @@
+# Game Architecture
+
+This project keeps the game layer separate from the Frostbite2D engine. The
+engine remains in `Frostbite2D/`; game-specific code lives under `game/`.
+
+## Directory Layout
+
+```text
+game/
+├─ assets/
+│  ├─ character/        Runtime character spritesheets.
+│  └─ shaders/          Runtime shaders used by the game target.
+├─ docs/
+│  └─ ARCHITECTURE.md   This document.
+└─ src/
+   ├─ actor/            Game actors such as player, enemy, projectile.
+   ├─ combat/           Hitbox, hurtbox, damage and combat resolution types.
+   ├─ core/             Shared config, input snapshots and asset paths.
+   ├─ data/             Level and gameplay data definitions.
+   ├─ movement/         Reusable movement and collision helpers.
+   ├─ scene/            Game scenes and level orchestration.
+   └─ main.cpp          Game executable entry point.
+```
+
+## Runtime Flow
+
+```text
+main.cpp
+  -> Application::init()
+  -> SceneManager::ReplaceScene(WhiteboxScene)
+  -> WhiteboxScene::onEnter()
+      -> CreateWhiteboxLevel()
+      -> create PlayerActor
+      -> pass PlatformWorld to PlayerActor
+  -> every frame:
+      -> PlayerActor samples InputState
+      -> PlayerActor moves through PlatformMover
+      -> PlayerActor updates animation
+      -> WhiteboxScene updates camera
+      -> WhiteboxScene draws whitebox level
+```
+
+## Module Responsibilities
+
+`core`
+
+- `game_config.h` stores shared tuning constants such as virtual resolution,
+  gravity, player speed and attack duration.
+- `asset_paths.h` stores stable runtime asset paths.
+- `input_state.*` converts raw SDL keyboard state into an engine-independent
+  `InputState` snapshot. Player logic consumes this snapshot instead of reading
+  SDL directly.
+
+`movement`
+
+- `PlatformWorld` owns level boundaries and platform rectangles.
+- `MovementBody` is a reusable position/size/velocity container.
+- `PlatformMover` applies gravity, clamps horizontal bounds and resolves basic
+  top-side platform landing.
+
+`data`
+
+- `LevelDefinition` groups collision and whitebox props.
+- `CreateWhiteboxLevel()` currently returns the first hard-coded blockout level.
+  Later this can be replaced by JSON, Tiled, LDtk, or a custom editor export
+  without changing `PlayerActor`.
+
+`actor`
+
+- `PlayerActor` owns player sprites, player state and animation.
+- It depends on `InputStateProvider` and `PlatformMover`, so input and movement
+  can be reused for enemies or changed independently.
+
+`scene`
+
+- `WhiteboxScene` orchestrates the current level: it loads level data, creates
+  actors, draws whitebox geometry and controls the camera.
+
+`combat`
+
+- `hitbox.h` defines early `Hitbox` and `Hurtbox` structs plus team filtering.
+  Full ACT combat should build from this instead of embedding hit detection in
+  actors.
+
+## Current Build Target
+
+`xmake.lua` defines `Frostbite2DGame` for Windows. It compiles all
+`game/src/**.cpp` files, links against `Frostbite2D`, and copies `game/assets`
+next to the executable after build.
+
+Build command:
+
+```powershell
+xmake -b Frostbite2DGame
+```
+
+Output:
+
+```text
+build/windows/x64/release/Frostbite2DGame.exe
+```
+
+## Next Architecture Steps
+
+1. Add `actor/enemy_actor.*` and reuse `PlatformMover`.
+2. Add a `combat/CombatSystem` that collects active hitboxes and hurtboxes each
+   frame, resolves hits, and emits damage events.
+3. Replace hard-coded animation timing in `PlayerActor` with data definitions.
+4. Move `CreateWhiteboxLevel()` to an external level format once the first
+   whitebox loop is stable.
+5. Add a `scene/gameplay_scene` base if multiple levels share spawn, camera,
+   combat and pause logic.

game/src/actor/player_actor.cpp

@@ -0,0 +1,160 @@
+#include "player_actor.h"
+
+#include "../core/asset_paths.h"
+#include "../core/game_config.h"
+
+#include <algorithm>
+#include <cmath>
+
+namespace ns_game {
+
+namespace {
+
+constexpr float kSpriteOffsetX = -32.0f;
+constexpr float kSpriteOffsetY = -24.0f;
+
+} // namespace
+
+PlayerActor::PlayerActor() {
+  SetSize(64.0f, 104.0f);
+  SetTopLeftPosition(160.0f, 380.0f);
+  loadSprites();
+}
+
+void PlayerActor::SetMovementWorld(const PlatformWorld* world) {
+  movementWorld_ = world;
+}
+
+void PlayerActor::loadSprites() {
+  idleSprite_ = frostbite2D::Sprite::createFromFile(assets::kMaleIdle);
+  runSprite_ = frostbite2D::Sprite::createFromFile(assets::kMaleRun);
+  punchSprite_ = frostbite2D::Sprite::createFromFile(assets::kMalePunch);
+
+  auto configure = [this](frostbite2D::Ptr<frostbite2D::Sprite> sprite) {
+    if (!sprite) {
+      return;
+    }
+    sprite->SetSize(config::kPlayerFrameSize, config::kPlayerFrameSize);
+    sprite->SetSourceRect(frostbite2D::Rect(0.0f, 0.0f,
+                                            config::kPlayerFrameSize,
+                                            config::kPlayerFrameSize));
+    sprite->SetTopLeftPosition(kSpriteOffsetX, kSpriteOffsetY);
+    sprite->SetVisible(false);
+    AddChild(sprite);
+  };
+
+  configure(idleSprite_);
+  configure(runSprite_);
+  configure(punchSprite_);
+  setAnimState(AnimState::Idle);
+}
+
+void PlayerActor::OnUpdate(float deltaTime) {
+  deltaTime = std::min(deltaTime, 1.0f / 30.0f);
+  updateInput();
+  updatePhysics(deltaTime);
+  updateAnimation(deltaTime);
+}
+
+void PlayerActor::updateInput() {
+  const InputState input = inputProvider_.Sample();
+  velocity_.x = input.moveX * config::kPlayerMoveSpeed;
+  if (input.moveX < 0.0f) {
+    facingLeft_ = true;
+  } else if (input.moveX > 0.0f) {
+    facingLeft_ = false;
+  }
+
+  if (input.jumpPressed && grounded_) {
+    velocity_.y = config::kPlayerJumpSpeed;
+    grounded_ = false;
+  }
+
+  if (input.attackPressed) {
+    attackTimer_ = config::kAttackDuration;
+    setAnimState(AnimState::Punch);
+  }
+}
+
+void PlayerActor::updatePhysics(float deltaTime) {
+  if (!movementWorld_) {
+    return;
+  }
+
+  MovementBody body;
+  body.position = GetTopLeftPosition();
+  body.size = GetSize();
+  body.velocity = velocity_;
+  body.grounded = grounded_;
+
+  body = platformMover_.Step(body, *movementWorld_, config::kGravity, deltaTime);
+  velocity_ = body.velocity;
+  grounded_ = body.grounded;
+  SetTopLeftPosition(body.position);
+}
+
+void PlayerActor::updateAnimation(float deltaTime) {
+  if (attackTimer_ > 0.0f) {
+    attackTimer_ = std::max(0.0f, attackTimer_ - deltaTime);
+    setAnimState(AnimState::Punch);
+  } else if (std::abs(velocity_.x) > 1.0f) {
+    setAnimState(AnimState::Run);
+  } else {
+    setAnimState(AnimState::Idle);
+  }
+
+  int frameCount = 10;
+  float frameDuration = 0.1f;
+  if (animState_ == AnimState::Idle) {
+    frameDuration = 0.16f;
+  } else if (animState_ == AnimState::Punch) {
+    frameDuration = 0.07f;
+  }
+
+  animTimer_ += deltaTime;
+  while (animTimer_ >= frameDuration) {
+    animTimer_ -= frameDuration;
+    frameIndex_ = (frameIndex_ + 1) % frameCount;
+  }
+
+  auto sprite = activeSprite();
+  if (sprite) {
+    sprite->SetSourceRect(
+        frostbite2D::Rect(frameIndex_ * config::kPlayerFrameSize, 0.0f,
+                          config::kPlayerFrameSize,
+                          config::kPlayerFrameSize));
+    sprite->SetFlippedX(facingLeft_);
+  }
+}
+
+void PlayerActor::setAnimState(AnimState state) {
+  if (animState_ != state) {
+    animState_ = state;
+    animTimer_ = 0.0f;
+    frameIndex_ = 0;
+  }
+
+  if (idleSprite_) {
+    idleSprite_->SetVisible(state == AnimState::Idle);
+  }
+  if (runSprite_) {
+    runSprite_->SetVisible(state == AnimState::Run);
+  }
+  if (punchSprite_) {
+    punchSprite_->SetVisible(state == AnimState::Punch);
+  }
+}
+
+frostbite2D::Ptr<frostbite2D::Sprite> PlayerActor::activeSprite() const {
+  switch (animState_) {
+    case AnimState::Run:
+      return runSprite_;
+    case AnimState::Punch:
+      return punchSprite_;
+    case AnimState::Idle:
+    default:
+      return idleSprite_;
+  }
+}
+
+} // namespace ns_game

game/src/actor/player_actor.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include "../core/input_state.h"
+#include "../movement/platform_world.h"
+
+#include <frostbite2D/2d/actor.h>
+#include <frostbite2D/2d/sprite.h>
+#include <frostbite2D/types/type_math.h>
+
+namespace ns_game {
+
+class PlayerActor : public frostbite2D::Actor {
+public:
+  PlayerActor();
+
+  void SetMovementWorld(const PlatformWorld* world);
+  void OnUpdate(float deltaTime) override;
+
+private:
+  enum class AnimState {
+    Idle,
+    Run,
+    Punch
+  };
+
+  void loadSprites();
+  void updateInput();
+  void updatePhysics(float deltaTime);
+  void updateAnimation(float deltaTime);
+  void setAnimState(AnimState state);
+  frostbite2D::Ptr<frostbite2D::Sprite> activeSprite() const;
+
+  const PlatformWorld* movementWorld_ = nullptr;
+  InputStateProvider inputProvider_;
+  PlatformMover platformMover_;
+  frostbite2D::Ptr<frostbite2D::Sprite> idleSprite_;
+  frostbite2D::Ptr<frostbite2D::Sprite> runSprite_;
+  frostbite2D::Ptr<frostbite2D::Sprite> punchSprite_;
+
+  frostbite2D::Vec2 velocity_;
+  AnimState animState_ = AnimState::Idle;
+  float animTimer_ = 0.0f;
+  float attackTimer_ = 0.0f;
+  int frameIndex_ = 0;
+  bool facingLeft_ = false;
+  bool grounded_ = false;
+};
+
+} // namespace ns_game

game/src/combat/hitbox.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <frostbite2D/types/type_math.h>
+
+namespace ns_game {
+
+enum class Team {
+  Player,
+  Enemy
+};
+
+struct Hitbox {
+  frostbite2D::Rect bounds;
+  Team ownerTeam = Team::Player;
+  int damage = 1;
+  float activeSeconds = 0.0f;
+};
+
+struct Hurtbox {
+  frostbite2D::Rect bounds;
+  Team ownerTeam = Team::Enemy;
+};
+
+inline bool CanHit(const Hitbox& hitbox, const Hurtbox& hurtbox) {
+  return hitbox.ownerTeam != hurtbox.ownerTeam &&
+         hitbox.bounds.intersects(hurtbox.bounds);
+}
+
+} // namespace ns_game

game/src/core/asset_paths.h

@@ -0,0 +1,12 @@
+#pragma once
+
+namespace ns_game::assets {
+
+constexpr const char* kMaleIdle =
+    "assets/character/male/Male_spritesheet_idle.png";
+constexpr const char* kMaleRun =
+    "assets/character/male/Male_spritesheet_run.png";
+constexpr const char* kMalePunch =
+    "assets/character/male/Male_spritesheet_punch_1.png";
+
+} // namespace ns_game::assets

game/src/core/game_config.h

@@ -0,0 +1,13 @@
+#pragma once
+
+namespace ns_game::config {
+
+constexpr int kVirtualWidth = 1280;
+constexpr int kVirtualHeight = 720;
+constexpr float kPlayerFrameSize = 128.0f;
+constexpr float kPlayerMoveSpeed = 300.0f;
+constexpr float kPlayerJumpSpeed = -620.0f;
+constexpr float kGravity = 1800.0f;
+constexpr float kAttackDuration = 0.28f;
+
+} // namespace ns_game::config

game/src/core/input_state.cpp

@@ -0,0 +1,40 @@
+#include "input_state.h"
+
+#include <SDL2/SDL.h>
+
+namespace ns_game {
+
+namespace {
+
+bool isDown(const Uint8* keys, SDL_Scancode key) {
+  return keys && keys[key] != 0;
+}
+
+} // namespace
+
+InputState InputStateProvider::Sample() {
+  const Uint8* keys = SDL_GetKeyboardState(nullptr);
+  InputState state;
+
+  if (isDown(keys, SDL_SCANCODE_A) || isDown(keys, SDL_SCANCODE_LEFT)) {
+    state.moveX -= 1.0f;
+  }
+  if (isDown(keys, SDL_SCANCODE_D) || isDown(keys, SDL_SCANCODE_RIGHT)) {
+    state.moveX += 1.0f;
+  }
+
+  const bool jumpHeld =
+      isDown(keys, SDL_SCANCODE_SPACE) || isDown(keys, SDL_SCANCODE_W) ||
+      isDown(keys, SDL_SCANCODE_UP);
+  const bool attackHeld =
+      isDown(keys, SDL_SCANCODE_J) || isDown(keys, SDL_SCANCODE_K);
+
+  state.jumpPressed = jumpHeld && !jumpHeldLastFrame_;
+  state.attackPressed = attackHeld && !attackHeldLastFrame_;
+
+  jumpHeldLastFrame_ = jumpHeld;
+  attackHeldLastFrame_ = attackHeld;
+  return state;
+}
+
+} // namespace ns_game

game/src/core/input_state.h

@@ -0,0 +1,20 @@
+#pragma once
+
+namespace ns_game {
+
+struct InputState {
+  float moveX = 0.0f;
+  bool jumpPressed = false;
+  bool attackPressed = false;
+};
+
+class InputStateProvider {
+public:
+  InputState Sample();
+
+private:
+  bool jumpHeldLastFrame_ = false;
+  bool attackHeldLastFrame_ = false;
+};
+
+} // namespace ns_game

game/src/data/level_definition.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include "../movement/platform_world.h"
+#include <frostbite2D/types/type_color.h>
+#include <frostbite2D/types/type_math.h>
+#include <vector>
+
+namespace ns_game {
+
+struct WhiteboxProp {
+  frostbite2D::Rect bounds;
+  frostbite2D::Color color;
+};
+
+struct LevelDefinition {
+  PlatformWorld collision;
+  std::vector<WhiteboxProp> props;
+};
+
+LevelDefinition CreateWhiteboxLevel();
+
+} // namespace ns_game

game/src/data/whitebox_level.cpp

@@ -0,0 +1,27 @@
+#include "level_definition.h"
+
+namespace ns_game {
+
+LevelDefinition CreateWhiteboxLevel() {
+  LevelDefinition level;
+  level.collision.levelLeft = 0.0f;
+  level.collision.levelRight = 1600.0f;
+  level.collision.platforms = {
+      frostbite2D::Rect(0.0f, 600.0f, 1600.0f, 80.0f),
+      frostbite2D::Rect(230.0f, 500.0f, 220.0f, 28.0f),
+      frostbite2D::Rect(560.0f, 430.0f, 260.0f, 28.0f),
+      frostbite2D::Rect(930.0f, 510.0f, 260.0f, 28.0f),
+      frostbite2D::Rect(1250.0f, 420.0f, 230.0f, 28.0f),
+  };
+  level.props = {
+      {frostbite2D::Rect(118.0f, 392.0f, 88.0f, 208.0f),
+       frostbite2D::Color(0.26f, 0.30f, 0.34f, 1.0f)},
+      {frostbite2D::Rect(780.0f, 250.0f, 72.0f, 180.0f),
+       frostbite2D::Color(0.26f, 0.30f, 0.34f, 1.0f)},
+      {frostbite2D::Rect(1440.0f, 300.0f, 80.0f, 300.0f),
+       frostbite2D::Color(0.26f, 0.30f, 0.34f, 1.0f)},
+  };
+  return level;
+}
+
+} // namespace ns_game

game/src/main.cpp

@@ -0,0 +1,41 @@
+#include "scene/whitebox_scene.h"
+#include "core/game_config.h"
+
+#include <cstdio>
+
+#define SDL_MAIN_HANDLED
+#include <frostbite2D/core/application.h>
+#include <frostbite2D/scene/scene_manager.h>
+
+int main(int argc, char** argv) {
+  (void)argc;
+  (void)argv;
+
+  auto config = frostbite2D::AppConfig::createDefault();
+  config.appName = "NS Unknown Game";
+  config.windowConfig.title = "NS Unknown Game - Whitebox";
+  config.windowConfig.width = 1280;
+  config.windowConfig.height = 720;
+  config.windowConfig.resizable = true;
+  config.windowConfig.vsync = true;
+  config.useVirtualResolution = true;
+  config.virtualWidth = ns_game::config::kVirtualWidth;
+  config.virtualHeight = ns_game::config::kVirtualHeight;
+  config.resolutionMode = frostbite2D::ResolutionScaleMode::Fit;
+  config.renderStyleProfile = frostbite2D::RenderStyleProfileId::PixelArt2D;
+  config.maxFps = 60;
+
+  auto& app = frostbite2D::Application::get();
+  if (!app.init(config)) {
+    std::puts("NS Unknown Game init failed.");
+    return 1;
+  }
+
+  app.run([]() {
+    frostbite2D::SceneManager::get().ReplaceScene(
+        frostbite2D::MakePtr<ns_game::WhiteboxScene>());
+  });
+
+  app.shutdown();
+  return 0;
+}

game/src/movement/platform_world.cpp

@@ -0,0 +1,39 @@
+#include "platform_world.h"
+
+#include <algorithm>
+
+namespace ns_game {
+
+MovementBody PlatformMover::Step(const MovementBody& body,
+                                 const PlatformWorld& world, float gravity,
+                                 float deltaTime) const {
+  MovementBody next = body;
+  const frostbite2D::Vec2 previousPosition = next.position;
+
+  next.velocity.y += gravity * deltaTime;
+  next.position += next.velocity * deltaTime;
+  next.grounded = false;
+
+  const float previousBottom = previousPosition.y + next.size.y;
+  const float newBottom = next.position.y + next.size.y;
+
+  for (const auto& platform : world.platforms) {
+    const bool horizontallyOverlaps =
+        next.position.x + next.size.x > platform.left() &&
+        next.position.x < platform.right();
+    const bool wasAbove = previousBottom <= platform.top() + 4.0f;
+    const bool crossedTop = newBottom >= platform.top();
+    if (next.velocity.y >= 0.0f && horizontallyOverlaps && wasAbove &&
+        crossedTop) {
+      next.position.y = platform.top() - next.size.y;
+      next.velocity.y = 0.0f;
+      next.grounded = true;
+    }
+  }
+
+  next.position.x =
+      std::clamp(next.position.x, world.levelLeft, world.levelRight - next.size.x);
+  return next;
+}
+
+} // namespace ns_game

game/src/movement/platform_world.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <frostbite2D/types/type_math.h>
+#include <vector>
+
+namespace ns_game {
+
+struct PlatformWorld {
+  float levelLeft = 0.0f;
+  float levelRight = 1280.0f;
+  std::vector<frostbite2D::Rect> platforms;
+};
+
+struct MovementBody {
+  frostbite2D::Vec2 position;
+  frostbite2D::Vec2 size;
+  frostbite2D::Vec2 velocity;
+  bool grounded = false;
+};
+
+class PlatformMover {
+public:
+  MovementBody Step(const MovementBody& body, const PlatformWorld& world,
+                    float gravity, float deltaTime) const;
+};
+
+} // namespace ns_game

game/src/scene/whitebox_scene.cpp

@@ -0,0 +1,84 @@
+#include "whitebox_scene.h"
+
+#include "../core/game_config.h"
+
+#include <frostbite2D/core/application.h>
+#include <frostbite2D/graphics/camera.h>
+#include <frostbite2D/graphics/renderer.h>
+#include <algorithm>
+
+namespace ns_game {
+
+namespace {
+
+void drawRect(const frostbite2D::Rect& rect, const frostbite2D::Color& color) {
+  frostbite2D::Renderer::get().drawQuad(rect, color);
+}
+
+} // namespace
+
+void WhiteboxScene::onEnter() {
+  frostbite2D::Scene::onEnter();
+  level_ = CreateWhiteboxLevel();
+
+  player_ = frostbite2D::MakePtr<PlayerActor>();
+  player_->SetMovementWorld(&level_.collision);
+  AddChild(player_);
+}
+
+void WhiteboxScene::OnUpdate(float deltaTime) {
+  (void)deltaTime;
+  updateCamera();
+}
+
+void WhiteboxScene::Render() {
+  drawWhitebox();
+  frostbite2D::Scene::Render();
+}
+
+void WhiteboxScene::drawWhitebox() const {
+  const float worldWidth = level_.collision.levelRight - level_.collision.levelLeft;
+  drawRect(frostbite2D::Rect(level_.collision.levelLeft, 0.0f, worldWidth,
+                             config::kVirtualHeight),
+           frostbite2D::Color(0.10f, 0.12f, 0.14f, 1.0f));
+
+  for (float x = level_.collision.levelLeft; x <= level_.collision.levelRight;
+       x += 80.0f) {
+    drawRect(frostbite2D::Rect(x, 0.0f, 1.0f, config::kVirtualHeight),
+             frostbite2D::Color(0.20f, 0.22f, 0.25f, 1.0f));
+  }
+  for (float y = 0.0f; y <= config::kVirtualHeight; y += 80.0f) {
+    drawRect(frostbite2D::Rect(level_.collision.levelLeft, y, worldWidth, 1.0f),
+             frostbite2D::Color(0.20f, 0.22f, 0.25f, 1.0f));
+  }
+
+  for (const auto& prop : level_.props) {
+    drawRect(prop.bounds, prop.color);
+  }
+
+  for (const auto& platform : level_.collision.platforms) {
+    drawRect(platform, frostbite2D::Color(0.62f, 0.68f, 0.73f, 1.0f));
+    drawRect(frostbite2D::Rect(platform.left(), platform.top(), platform.width(), 4.0f),
+             frostbite2D::Color(0.91f, 0.95f, 0.98f, 1.0f));
+  }
+}
+
+void WhiteboxScene::updateCamera() {
+  if (!player_) {
+    return;
+  }
+
+  auto* renderer = frostbite2D::Application::get().getRenderer();
+  if (!renderer || !renderer->getCamera()) {
+    return;
+  }
+
+  const auto playerPos = player_->GetTopLeftPosition();
+  const float targetX = std::clamp(playerPos.x - 420.0f,
+                                   level_.collision.levelLeft,
+                                   level_.collision.levelRight -
+                                       static_cast<float>(config::kVirtualWidth));
+  renderer->getCamera()->setPosition(frostbite2D::Vec2(targetX, 0.0f));
+}
+
+} // namespace ns_game

game/src/scene/whitebox_scene.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "../actor/player_actor.h"
+#include "../data/level_definition.h"
+
+#include <frostbite2D/scene/scene.h>
+#include <frostbite2D/types/type_math.h>
+
+namespace ns_game {
+
+class WhiteboxScene : public frostbite2D::Scene {
+public:
+  void onEnter() override;
+  void OnUpdate(float deltaTime) override;
+  void Render() override;
+
+private:
+  void drawWhitebox() const;
+  void updateCamera();
+
+  LevelDefinition level_;
+  frostbite2D::Ptr<PlayerActor> player_;
+};
+
+} // namespace ns_game

xmake.lua

@@ -31,4 +31,21 @@ if is_plat("windows") then
         add_packages("zlib")
         add_syslinks("imm32")
     target_end()
+
+    target("Frostbite2DGame")
+        set_kind("binary")
+        add_files("game/src/**.cpp")
+        add_deps("Frostbite2D")
+        add_packages("libsdl2")
+        add_packages("libsdl2_image")
+        add_packages("libsdl2_mixer")
+        add_packages("libsdl2_ttf")
+        add_packages("glm")
+        add_packages("zlib")
+        add_syslinks("imm32")
+        after_build(function (target)
+            os.cp(path.join(os.projectdir(), "game/assets"),
+                  path.join(target:targetdir(), "assets"))
+        end)
+    target_end()
 end