summaryrefslogtreecommitdiffstats
path: root/src/math/Vector.h
blob: e45906c8cef06900269874b8a23dc691d10270f1 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
#pragma once

class CVector
{
public:
	float x, y, z;
	CVector(void) {}
	CVector(float x, float y, float z) : x(x), y(y), z(z) {}
//	CVector(CVector &refVector) : x(refVector.x), y(refVector.y), z(refVector.z) { }
//	CVector(const CVector &refVector) : x(refVector.x), y(refVector.y), z(refVector.z) {}
//	CVector(CVector2D &refVector, float _z = 0.0f) : x(refVector.x), y(refVector.y), z(_z) {}
#ifdef RWCORE_H
	CVector(RwV3d const &v) : x(v.x), y(v.y), z(v.z) {}

	operator RwV3d (void) const {
		RwV3d vecRw = { this->x, this->y, this->z };
		return vecRw;
	}
	
	operator RwV3d *(void)
	{
		return (RwV3d *)this;
	}
	
	operator RwV3d &(void)
	{
		return *((RwV3d *)this);
	}
#endif
	float Magnitude(void) const { return sqrt(x*x + y*y + z*z); }
	float MagnitudeSqr(void) const { return x*x + y*y + z*z; }
	float Magnitude2D(void) const { return sqrt(x*x + y*y); }
	void Normalise(void);


	// operator =
	inline CVector const& operator = (CVector const &refRight)
	{
		x = refRight.x;
		y = refRight.y;
		z = refRight.z;
		return *this;
	}
	
	inline CVector const& operator = (float fRight)
	{
		x = fRight;
		y = fRight;
		z = fRight;
		return *this;
	}
	
	// operator +=
	inline CVector const& operator += (CVector const &refRight)
	{
		x += refRight.x;
		y += refRight.y;
		z += refRight.z;
		return *this;
	}
	
	inline CVector const& operator += (float fRight)
	{
		x += fRight;
		y += fRight;
		z += fRight;
		return *this;
	}
	
	// operator -=
	inline CVector const& operator -= (CVector const &refRight)
	{
		x -= refRight.x;
		y -= refRight.y;
		z -= refRight.z;
		return *this;
	}
	
	inline CVector const& operator -= (float fRight)
	{
		x -= fRight;
		y -= fRight;
		z -= fRight;
		return *this;
	}
	
	// operator *=
	inline CVector const& operator *= (CVector const &refRight)
	{
		x *= refRight.x;
		y *= refRight.y;
		z *= refRight.z;
		return *this;
	}
	
	inline CVector const& operator *= (float fRight)
	{
		x *= fRight;
		y *= fRight;
		z *= fRight;
		return *this;
	}
	
	// operator /=
	inline CVector const& operator /= (CVector const &refRight)
	{
		x /= refRight.x;
		y /= refRight.y;
		z /= refRight.z;
		return *this;
	}
	
	inline CVector const& operator /= (float fRight)
	{
		x /= fRight;
		y /= fRight;
		z /= fRight;
		return *this;
	}
	
	inline CVector operator - () const
    {
        return CVector(-x, -y, -z);
    }
	
	bool IsZero(void) { return x == 0.0f && y == 0.0f && z == 0.0f; }
};

//extern CVector operator*(CMatrix const& matrix, CVector const& vector);

inline float
DotProduct(const CVector &v1, const CVector &v2)
{
	return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
}

inline CVector
CrossProduct(const CVector &v1, const CVector &v2)
{
	return CVector(
		v1.y*v2.z - v1.z*v2.y,
		v1.z*v2.x - v1.x*v2.z,
		v1.x*v2.y - v1.y*v2.x);
}

// operator +
extern CVector operator + (CVector const &refLeft, CVector const &refRight);
extern CVector operator + (CVector const &refLeft, float fRight);
extern CVector operator + (float fLeft, CVector const &refRight);

// operator -
extern CVector operator - (CVector const &refLeft, CVector const &refRight);
extern CVector operator - (CVector const &refLeft, float fRight);
extern CVector operator - (float fLeft, CVector const &refRight);
 
// operator *
extern CVector operator * (CVector const &refLeft, CVector const &refRight);
extern CVector operator * (CVector const &refLeft, float fRight);
extern CVector operator * (float fLeft, CVector const &refRight);
 
// operator /
extern CVector operator / (CVector const &refLeft, CVector const &refRight);
extern CVector operator / (CVector const &refLeft, float fRight);
extern CVector operator / (float fLeft, CVector const &refRight);