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https://github.com/isledecomp/isle.git
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489 lines
14 KiB
C++
489 lines
14 KiB
C++
#ifndef VECTOR_H
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#define VECTOR_H
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#include "compat.h"
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#include <math.h>
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#include <memory.h>
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// Note: Many functions most likely take const references/pointers instead of non-const.
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// The class needs to undergo a very careful refactoring to fix that (no matches should break).
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// VTABLE: LEGO1 0x100d4288
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// VTABLE: BETA10 0x101b8440
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// SIZE 0x08
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class Vector2 {
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public:
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// FUNCTION: LEGO1 0x1000c0f0
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// FUNCTION: BETA10 0x100116a0
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Vector2(float* p_data) { SetData(p_data); }
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// Note: virtual function overloads appear in the virtual table
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// in reverse order of appearance.
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// FUNCTION: LEGO1 0x10001f80
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virtual void AddImpl(const float* p_value)
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{
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m_data[0] += p_value[0];
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m_data[1] += p_value[1];
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} // vtable+0x04
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// FUNCTION: LEGO1 0x10001fa0
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virtual void AddImpl(float p_value)
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{
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m_data[0] += p_value;
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m_data[1] += p_value;
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} // vtable+0x00
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// FUNCTION: LEGO1 0x10001fc0
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virtual void SubImpl(const float* p_value)
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{
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m_data[0] -= p_value[0];
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m_data[1] -= p_value[1];
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} // vtable+0x08
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// FUNCTION: LEGO1 0x10001fe0
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virtual void MulImpl(const float* p_value)
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{
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m_data[0] *= p_value[0];
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m_data[1] *= p_value[1];
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} // vtable+0x10
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// FUNCTION: LEGO1 0x10002000
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virtual void MulImpl(const float& p_value)
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{
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m_data[0] *= p_value;
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m_data[1] *= p_value;
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} // vtable+0x0c
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// FUNCTION: LEGO1 0x10002020
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virtual void DivImpl(const float& p_value)
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{
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m_data[0] /= p_value;
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m_data[1] /= p_value;
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} // vtable+0x14
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// FUNCTION: LEGO1 0x10002040
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virtual float DotImpl(const float* p_a, const float* p_b) const
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{
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return p_b[0] * p_a[0] + p_b[1] * p_a[1];
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} // vtable+0x18
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// FUNCTION: LEGO1 0x10002060
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// FUNCTION: BETA10 0x10010c90
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virtual void SetData(float* p_data) { m_data = p_data; } // vtable+0x1c
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// FUNCTION: LEGO1 0x10002070
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virtual void EqualsImpl(const float* p_data) { memcpy(m_data, p_data, sizeof(float) * 2); } // vtable+0x20
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// FUNCTION: LEGO1 0x10002090
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virtual float* GetData() { return m_data; } // vtable+0x28
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// FUNCTION: LEGO1 0x100020a0
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virtual const float* GetData() const { return m_data; } // vtable+0x24
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// FUNCTION: LEGO1 0x100020b0
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virtual void Clear() { memset(m_data, 0, sizeof(float) * 2); } // vtable+0x2c
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// FUNCTION: LEGO1 0x100020d0
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virtual float Dot(const float* p_a, const float* p_b) const { return DotImpl(p_a, p_b); } // vtable+0x3c
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// FUNCTION: LEGO1 0x100020f0
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// FUNCTION: BETA10 0x100108c0
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virtual float Dot(const Vector2& p_a, const Vector2& p_b) const
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{
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return DotImpl(p_a.m_data, p_b.m_data);
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} // vtable+0x38
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// FUNCTION: LEGO1 0x10002110
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virtual float Dot(const float* p_a, const Vector2& p_b) const { return DotImpl(p_a, p_b.m_data); } // vtable+0x34
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// FUNCTION: LEGO1 0x10002130
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virtual float Dot(const Vector2& p_a, const float* p_b) const { return DotImpl(p_a.m_data, p_b); } // vtable+0x30
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// FUNCTION: LEGO1 0x10002150
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virtual float LenSquared() const { return m_data[0] * m_data[0] + m_data[1] * m_data[1]; } // vtable+0x40
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// FUNCTION: LEGO1 0x10002160
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// FUNCTION: BETA10 0x10010900
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virtual int Unitize()
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{
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float sq = LenSquared();
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if (sq > 0.0f) {
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float root = sqrt(sq);
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if (root > 0.0f) {
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DivImpl(root);
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return 0;
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}
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}
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return -1;
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} // vtable+0x44
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// FUNCTION: LEGO1 0x100021c0
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virtual void operator+=(float p_value) { AddImpl(p_value); } // vtable+0x50
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// FUNCTION: LEGO1 0x100021d0
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virtual void operator+=(const float* p_other) { AddImpl(p_other); } // vtable+0x4c
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// FUNCTION: LEGO1 0x100021e0
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virtual void operator+=(const Vector2& p_other) { AddImpl(p_other.m_data); } // vtable+0x48
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// FUNCTION: LEGO1 0x100021f0
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virtual void operator-=(const float* p_other) { SubImpl(p_other); } // vtable+0x58
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// FUNCTION: LEGO1 0x10002200
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virtual void operator-=(const Vector2& p_other) { SubImpl(p_other.m_data); } // vtable+0x54
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// FUNCTION: LEGO1 0x10002210
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virtual void operator*=(const float* p_other) { MulImpl(p_other); } // vtable+0x64
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// FUNCTION: LEGO1 0x10002220
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virtual void operator*=(const Vector2& p_other) { MulImpl(p_other.m_data); } // vtable+0x60
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// FUNCTION: LEGO1 0x10002230
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virtual void operator*=(const float& p_value) { MulImpl(p_value); } // vtable+0x5c
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// FUNCTION: LEGO1 0x10002240
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virtual void operator/=(const float& p_value) { DivImpl(p_value); } // vtable+0x68
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// FUNCTION: LEGO1 0x10002250
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virtual void SetVector(const float* p_other) { EqualsImpl(p_other); } // vtable+0x70
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// FUNCTION: LEGO1 0x10002260
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// FUNCTION: BETA10 0x100110c0
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virtual void SetVector(const Vector2& p_other) { EqualsImpl(p_other.m_data); } // vtable+0x6c
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// Note: it's unclear whether Vector3::operator= has been defined explicitly
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// with the same function body as Vector2& operator=. The BETA indicates that;
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// however, it makes LEGO1 0x10010be0 disappear and worsens matches in
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// at least these functions:
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// LEGO1 0x100109b0
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// LEGO1 0x10023130
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// LEGO1 0x1002de10
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// LEGO1 0x10050a80
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// LEGO1 0x10053980
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// LEGO1 0x100648f0
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// LEGO1 0x10064b50
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// LEGO1 0x10084030
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// LEGO1 0x100a9410
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// However, defining it as in the BETA improves at least these functions:
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// LEGO1 0x10042300
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// SYNTHETIC: LEGO1 0x10010be0
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// SYNTHETIC: BETA10 0x100121e0
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// Vector3::operator=
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// SYNTHETIC: BETA10 0x1004af40
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// Vector4::operator=
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Vector2& operator=(const Vector2& p_other)
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{
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Vector2::SetVector(p_other);
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return *this;
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}
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// FUNCTION: BETA10 0x1001d140
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float& operator[](int idx) { return m_data[idx]; }
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// FUNCTION: BETA10 0x1001d170
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const float& operator[](int idx) const { return m_data[idx]; }
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protected:
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float* m_data; // 0x04
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};
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// VTABLE: LEGO1 0x100d4518
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// VTABLE: BETA10 0x101b8398
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// SIZE 0x08
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class Vector3 : public Vector2 {
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public:
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// FUNCTION: LEGO1 0x1001d150
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// FUNCTION: BETA10 0x10011660
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Vector3(float* p_data) : Vector2(p_data) {}
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// Hack: Some code initializes a Vector3 from a (most likely) const float* source.
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// Example: LegoCameraController::GetWorldUp
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// Vector3 however is a class that can mutate its underlying source, making
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// initialization with a const source fundamentally incompatible.
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// FUNCTION: BETA10 0x100109a0
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Vector3(const float* p_data) : Vector2((float*) p_data) {}
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// Note: virtual function overloads appear in the virtual table
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// in reverse order of appearance.
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// FUNCTION: LEGO1 0x10002270
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// FUNCTION: BETA10 0x10011350
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virtual void EqualsCrossImpl(const float* p_a, const float* p_b)
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{
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m_data[0] = p_a[1] * p_b[2] - p_a[2] * p_b[1];
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m_data[1] = p_a[2] * p_b[0] - p_a[0] * p_b[2];
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m_data[2] = p_a[0] * p_b[1] - p_a[1] * p_b[0];
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} // vtable+0x74
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// FUNCTION: LEGO1 0x100022c0
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// FUNCTION: BETA10 0x10011430
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virtual void EqualsCross(const Vector3& p_a, const Vector3& p_b)
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{
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EqualsCrossImpl(p_a.m_data, p_b.m_data);
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} // vtable+0x80
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// FUNCTION: LEGO1 0x100022e0
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virtual void EqualsCross(const Vector3& p_a, const float* p_b) { EqualsCrossImpl(p_a.m_data, p_b); } // vtable+0x7c
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// FUNCTION: LEGO1 0x10002300
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virtual void EqualsCross(const float* p_a, const Vector3& p_b) { EqualsCrossImpl(p_a, p_b.m_data); } // vtable+0x78
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// FUNCTION: LEGO1 0x10003bf0
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virtual void Fill(const float& p_value)
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{
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m_data[0] = p_value;
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m_data[1] = p_value;
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m_data[2] = p_value;
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} // vtable+0x84
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// Vector2 overrides
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// FUNCTION: LEGO1 0x10003a60
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void AddImpl(const float* p_value) override
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{
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m_data[0] += p_value[0];
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m_data[1] += p_value[1];
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m_data[2] += p_value[2];
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} // vtable+0x04
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// FUNCTION: LEGO1 0x10003a90
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void AddImpl(float p_value) override
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{
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m_data[0] += p_value;
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m_data[1] += p_value;
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m_data[2] += p_value;
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} // vtable+0x00
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// FUNCTION: LEGO1 0x10003ac0
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void SubImpl(const float* p_value) override
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{
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m_data[0] -= p_value[0];
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m_data[1] -= p_value[1];
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m_data[2] -= p_value[2];
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} // vtable+0x08
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// FUNCTION: LEGO1 0x10003af0
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void MulImpl(const float* p_value) override
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{
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m_data[0] *= p_value[0];
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m_data[1] *= p_value[1];
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m_data[2] *= p_value[2];
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} // vtable+0x10
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// FUNCTION: LEGO1 0x10003b20
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void MulImpl(const float& p_value) override
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{
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m_data[0] *= p_value;
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m_data[1] *= p_value;
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m_data[2] *= p_value;
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} // vtable+0x0c
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// FUNCTION: LEGO1 0x10003b50
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void DivImpl(const float& p_value) override
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{
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m_data[0] /= p_value;
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m_data[1] /= p_value;
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m_data[2] /= p_value;
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} // vtable+0x14
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// FUNCTION: LEGO1 0x10003b80
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float DotImpl(const float* p_a, const float* p_b) const override
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{
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return p_a[0] * p_b[0] + p_a[2] * p_b[2] + p_a[1] * p_b[1];
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} // vtable+0x18
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// FUNCTION: LEGO1 0x10003ba0
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// FUNCTION: BETA10 0x100113f0
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void EqualsImpl(const float* p_data) override { memcpy(m_data, p_data, sizeof(float) * 3); } // vtable+0x20
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// FUNCTION: LEGO1 0x10003bc0
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// FUNCTION: BETA10 0x100114f0
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void Clear() override { memset(m_data, 0, sizeof(float) * 3); } // vtable+0x2c
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// FUNCTION: LEGO1 0x10003bd0
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// FUNCTION: BETA10 0x10011530
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float LenSquared() const override
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{
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return m_data[0] * m_data[0] + m_data[1] * m_data[1] + m_data[2] * m_data[2];
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} // vtable+0x40
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friend class Mx3DPointFloat;
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};
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// VTABLE: LEGO1 0x100d45a0
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// VTABLE: BETA10 0x101bac38
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// SIZE 0x08
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class Vector4 : public Vector3 {
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public:
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// FUNCTION: BETA10 0x10048780
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Vector4(float* p_data) : Vector3(p_data) {}
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// Some code initializes a Vector4 from a `const float*` source.
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// Example: `LegoCarBuild::VTable0x6c`
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// Vector4 however is a class that can mutate its underlying source, making
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// initialization with a const source fundamentally incompatible.
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// BETA10 appears to have two separate constructors for Vector4 as well,
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// supporting the theory that this decompilation is correct.
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// FUNCTION: BETA10 0x100701b0
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Vector4(const float* p_data) : Vector3((float*) p_data) {}
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// Note: virtual function overloads appear in the virtual table
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// in reverse order of appearance.
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// FUNCTION: LEGO1 0x10002a40
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virtual void SetMatrixProduct(const float* p_vec, const float* p_mat)
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{
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m_data[0] = p_vec[0] * p_mat[0] + p_vec[1] * p_mat[4] + p_vec[2] * p_mat[8] + p_vec[3] * p_mat[12];
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m_data[1] = p_vec[0] * p_mat[1] + p_vec[1] * p_mat[5] + p_vec[2] * p_mat[9] + p_vec[4] * p_mat[13];
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m_data[2] = p_vec[0] * p_mat[2] + p_vec[1] * p_mat[6] + p_vec[2] * p_mat[10] + p_vec[4] * p_mat[14];
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m_data[3] = p_vec[0] * p_mat[3] + p_vec[1] * p_mat[7] + p_vec[2] * p_mat[11] + p_vec[4] * p_mat[15];
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} // vtable+0x8c
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// FUNCTION: LEGO1 0x10002ae0
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virtual void SetMatrixProduct(const Vector4& p_a, const float* p_b)
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{
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SetMatrixProduct(p_a.m_data, p_b);
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} // vtable+0x88
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inline virtual int NormalizeQuaternion(); // vtable+0x90
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inline virtual int EqualsHamiltonProduct(const Vector4& p_a, const Vector4& p_b); // vtable+0x94
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// Vector3 overrides
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// FUNCTION: LEGO1 0x10002870
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void AddImpl(const float* p_value) override
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{
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m_data[0] += p_value[0];
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m_data[1] += p_value[1];
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m_data[2] += p_value[2];
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m_data[3] += p_value[3];
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} // vtable+0x04
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// FUNCTION: LEGO1 0x100028b0
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void AddImpl(float p_value) override
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{
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m_data[0] += p_value;
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m_data[1] += p_value;
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m_data[2] += p_value;
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m_data[3] += p_value;
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} // vtable+0x00
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// FUNCTION: LEGO1 0x100028f0
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void SubImpl(const float* p_value) override
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{
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m_data[0] -= p_value[0];
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m_data[1] -= p_value[1];
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m_data[2] -= p_value[2];
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m_data[3] -= p_value[3];
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} // vtable+0x08
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// FUNCTION: LEGO1 0x10002930
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void MulImpl(const float* p_value) override
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{
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m_data[0] *= p_value[0];
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m_data[1] *= p_value[1];
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m_data[2] *= p_value[2];
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m_data[3] *= p_value[3];
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} // vtable+0x10
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// FUNCTION: LEGO1 0x10002970
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void MulImpl(const float& p_value) override
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{
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m_data[0] *= p_value;
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m_data[1] *= p_value;
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m_data[2] *= p_value;
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m_data[3] *= p_value;
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} // vtable+0x0c
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// FUNCTION: LEGO1 0x100029b0
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void DivImpl(const float& p_value) override
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{
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m_data[0] /= p_value;
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m_data[1] /= p_value;
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m_data[2] /= p_value;
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m_data[3] /= p_value;
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} // vtable+0x14
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// FUNCTION: LEGO1 0x100029f0
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float DotImpl(const float* p_a, const float* p_b) const override
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{
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return p_a[0] * p_b[0] + p_a[2] * p_b[2] + (p_a[1] * p_b[1] + p_a[3] * p_b[3]);
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} // vtable+0x18
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// FUNCTION: LEGO1 0x10002a20
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void EqualsImpl(const float* p_data) override { memcpy(m_data, p_data, sizeof(float) * 4); } // vtable+0x20
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// FUNCTION: LEGO1 0x10002b00
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void Clear() override { memset(m_data, 0, sizeof(float) * 4); } // vtable+0x2c
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// FUNCTION: LEGO1 0x10002b20
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float LenSquared() const override
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{
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return m_data[1] * m_data[1] + m_data[0] * m_data[0] + m_data[2] * m_data[2] + m_data[3] * m_data[3];
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} // vtable+0x40
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// FUNCTION: LEGO1 0x10002b40
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void Fill(const float& p_value) override
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{
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m_data[0] = p_value;
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m_data[1] = p_value;
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m_data[2] = p_value;
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m_data[3] = p_value;
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} // vtable+0x84
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float& operator[](int idx) { return m_data[idx]; }
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// FUNCTION: BETA10 0x10010890
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const float& operator[](int idx) const { return m_data[idx]; }
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friend class Mx4DPointFloat;
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};
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// FUNCTION: LEGO1 0x10002b70
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// FUNCTION: BETA10 0x10048ad0
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inline int Vector4::NormalizeQuaternion()
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{
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float length = m_data[0] * m_data[0] + m_data[1] * m_data[1] + m_data[2] * m_data[2];
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if (length > 0.0f) {
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float theta = m_data[3] * 0.5f;
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float magnitude = sin((double) theta);
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m_data[3] = cos((double) theta);
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magnitude = magnitude / (float) sqrt((double) length);
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m_data[0] *= magnitude;
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m_data[1] *= magnitude;
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m_data[2] *= magnitude;
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return 0;
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}
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else {
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return -1;
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}
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}
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// FUNCTION: LEGO1 0x10002bf0
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// FUNCTION: BETA10 0x10048c20
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inline int Vector4::EqualsHamiltonProduct(const Vector4& p_a, const Vector4& p_b)
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{
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m_data[3] = p_a.m_data[3] * p_b.m_data[3] -
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(p_a.m_data[0] * p_b.m_data[0] + p_a.m_data[2] * p_b.m_data[2] + p_a.m_data[1] * p_b.m_data[1]);
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Vector3::EqualsCrossImpl(p_a.m_data, p_b.m_data);
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m_data[0] = p_b.m_data[3] * p_a.m_data[0] + p_a.m_data[3] * p_b.m_data[0] + m_data[0];
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m_data[1] = p_b.m_data[1] * p_a.m_data[3] + p_a.m_data[1] * p_b.m_data[3] + m_data[1];
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m_data[2] = p_b.m_data[2] * p_a.m_data[3] + p_a.m_data[2] * p_b.m_data[3] + m_data[2];
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return 0;
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}
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#endif // VECTOR_H
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