21 class SHIT_API SHIT_REFLECT(BlackList) BoxCollider2D : public Component {

22 SHIT_REFLECT_BODY(BoxCollider2D)

23 public:

24 BoxCollider2D();

25 explicit BoxCollider2D(const Vector2& size);

26 ~BoxCollider2D() override;

27

28 void onAttach() override;

29 void onDetach() override;

30 void onDestroy() override;

33 void ensureShape();

34

35 // --- 配置（可在 onAttach 前后调用） ---

36 void setSize(const Vector2& size);

37 const Vector2& getSize() const { return m_size; }

40 void onFieldChanged(const std::string& fieldName) override;

41

42 void setDensity(float density);

43 float getDensity() const { return m_density; }

44

45 void setFriction(float friction);

46 float getFriction() const { return m_friction; }

47

48 void setRestitution(float restitution);

49 float getRestitution() const { return m_restitution; }

50

51 private:

52 SHIT_META(({.displayName = "Size", .tooltip = "碰撞盒像素尺寸（宽/高）"}))

53 Vector2 m_size{ 32.0f, 32.0f };

54 SHIT_META(({.displayName = "Density", .range = {0, 100}, .step = 0.1}))

55 float m_density = 1.0f;

56 SHIT_META(({.displayName = "Friction", .tooltip = "摩擦系数", .range = {0, 1}, .step = 0.05}))

57 float m_friction = 0.3f;

58 SHIT_META(({.displayName = "Restitution", .tooltip = "弹性系数", .range = {0, 1}, .step = 0.05}))

59 float m_restitution = 0.0f;

60

61 // b2ShapeId = {int32_t index1; uint16_t world0; uint16_t generation;}

62 SHIT_META(Disable)

63 int32_t m_shapeIndex = 0;

64 SHIT_META(Disable)

65 uint16_t m_shapeWorld0 = 0;

66 SHIT_META(Disable)

67 uint16_t m_shapeGeneration = 0;

68 SHIT_META(Disable)

69 bool m_shapeValid = false;

70 };