24 class SHIT_API SHIT_REFLECT(BlackList) RigidBody2D : public Component {

25 SHIT_REFLECT_BODY(RigidBody2D)

26 public:

32

33 RigidBody2D();

34 ~RigidBody2D() override;

35

36 void onCreate() override;

37 void onAttach() override;

38 void onDetach() override;

39 void onDestroy() override;

40

41 // --- 属性 ---

42 void setBodyType(Type type);

43 Type getBodyType() const { return m_type; }

44

45 void setGravityScale(float scale) { m_gravityScale = scale; }

46 float getGravityScale() const { return m_gravityScale; }

47

48 void setLinearDamping(float damping) { m_linearDamping = damping; }

49 float getLinearDamping() const { return m_linearDamping; }

50

51 void setFixedRotation(bool fixed) { m_fixedRotation = fixed; }

52 bool isFixedRotation() const { return m_fixedRotation; }

53

54 // --- 力的接口 ---

55 void applyForce(const Vector2& force, bool wake = true);

56 void applyForceToCenter(const Vector2& force, bool wake = true);

57 void applyImpulse(const Vector2& impulse, bool wake = true);

58 void setLinearVelocity(const Vector2& velocity);

59 Vector2 getLinearVelocity() const;

65 void setTransform(const Vector2& position, float rotationDegrees);

68 bool hasValidBody() const { return m_bodyValid; }

69

70 // --- 供 BoxCollider2D / CircleCollider2D 内部使用 ---

71 int32_t getBodyIndex() const { return m_bodyIndex; }

72 uint16_t getBodyWorld0() const { return m_bodyWorld0; }

73 uint16_t getBodyGeneration() const { return m_bodyGeneration; }

74

75 private:

76 friend class PhysicsSystem2D;

77

78 // b2BodyId = {int32_t index1; uint16_t world0; uint16_t generation;}

79 SHIT_META(Disable)

80 int32_t m_bodyIndex = 0;

81 SHIT_META(Disable)

82 uint16_t m_bodyWorld0 = 0;

83 SHIT_META(Disable)

84 uint16_t m_bodyGeneration = 0;

85 SHIT_META(Disable)

86 bool m_bodyValid = false;

87

88 SHIT_META(({.displayName = "Body Type", .tooltip = "Static=不动, Kinematic=用户控制, Dynamic=物理驱动"}))

89 Type m_type = Type::Static;

90 SHIT_META(({.displayName = "Gravity Scale", .tooltip = "重力影响系数", .range = {0, 10}, .step = 0.1}))

91 float m_gravityScale = 1.0f;

92 SHIT_META(({.displayName = "Linear Damping", .tooltip = "线性阻尼", .range = {0, 10}, .step = 0.1}))

93 float m_linearDamping = 0.0f;

94 SHIT_META(({.displayName = "Fixed Rotation", .tooltip = "锁定旋转"}))

95 bool m_fixedRotation = false;

96 };