LegoUnknown Class Reference

Opaque Bezier curve utility used for actor or path position interpolation. More...

#include <legounknown.h>

Public Member Functions
	LegoUnknown ()
	[AI] Constructs the LegoUnknown object, clearing the internal control points. More...
	~LegoUnknown ()
	[AI] Destructor (no-op). More...
void	FUN_1009a140 (const Vector3 &p_point1, const Vector3 &p_point2, const Vector3 &p_point3, const Vector3 &p_point4)
	[AI] Configure internal curve control points. More...
LegoResult	FUN_1009a1e0 (float p_f1, Matrix4 &p_mat, Vector3 &p_v, LegoU32 p_und)
	[AI] Evaluates the curve and its tangent at p_f1 and computes the local orthonormal frame. More...

Detailed Description

Opaque Bezier curve utility used for actor or path position interpolation.

[AI]

[AI] This class appears to be a helper for handling cubic Bezier curves or Hermite splines in 3D, storing up to four control points. Its methods are used to set up the curve with the required endpoints/tangents and to evaluate positions and directions along the curve. Used for path or animation interpolation. [AI]

Definition at line 18 of file legounknown.h.

Constructor & Destructor Documentation

LegoUnknown()

LegoUnknown::LegoUnknown

(

)

[AI] Constructs the LegoUnknown object, clearing the internal control points.

Definition at line 8 of file legounknown.cpp.

~LegoUnknown()

LegoUnknown::~LegoUnknown

(

)

[AI] Destructor (no-op).

Definition at line 16 of file legounknown.cpp.

Member Function Documentation

FUN_1009a140()

void LegoUnknown::FUN_1009a140	(	const Vector3 &	p_point1,
		const Vector3 &	p_point2,
		const Vector3 &	p_point3,
		const Vector3 &	p_point4
	)

[AI] Configure internal curve control points.

[AI]

[AI] Assigns the control points for a cubic spline or Bezier curve, given four 3D points:

• p_point1: The curve start point
• p_point2: Outgoing tangent or first control handle
• p_point3: Curve end point
• p_point4: Incoming tangent or last control handle The method builds the internal polynomial coefficients required for evaluation. [AI]

  Parameters

  p_point1	Start point of the curve [AI]
  p_point2	Outgoing tangent or handle at the start [AI]
  p_point3	End point of the curve [AI]
  p_point4	Incoming tangent or handle at the end [AI]

Definition at line 22 of file legounknown.cpp.

FUN_1009a1e0()

LegoResult LegoUnknown::FUN_1009a1e0	(	float	p_f1,
		Matrix4 &	p_mat,
		Vector3 &	p_v,
		LegoU32	p_und
	)

[AI] Evaluates the curve and its tangent at p_f1 and computes the local orthonormal frame.

[AI]

[AI] Given a parameter p_f1 between 0 and 1, this method calculates:

• The position and tangent on the curve,
• Optionally inverts the tangent if p_und is set,
• Builds a local coordinate system based on the tangent and a reference vector p_v,
• Outputs these (position and orthonormal frame) into a Matrix4 as basis vectors. Returns FAILURE if vectors cannot be normalized.

  Parameters

  p_f1	Parameter along the curve, in [0,1]. [AI]
  p_mat	Matrix output: built up with the resulting position (column 3) and basis vectors. [AI]
  p_v	Reference up-direction vector to use for frame computation. [AI]
  p_und	If true, reverses the curve tangent. [AI]

  Returns

  Returns SUCCESS if basis computation succeeds, FAILURE otherwise. [AI]

Definition at line 40 of file legounknown.cpp.

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The documentation for this class was generated from the following files:

• legounknown.h
• legounknown.cpp