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Hilfe zum Buch "3D-Spieleprogrammierung" von David Scherfgen »
21.09.2005, 15:13
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#pragma once // Verwendete Symbole vordefinieren class tbMatrix; // ****************************************************************** // Die 3D-Vektor-Klasse class TRIBASE_API tbVector3 { public: // Variablen union { struct { float x; // Koordinaten float y; float z; }; struct { float u; // Texturkoordinaten float v; float w; }; float c[3]; // Array der Koordinaten D3DVECTOR vD3DVector; // Vektor in Form eines Direct3D-Vektors }; // Konstruktoren tbVector3() {} tbVector3(const tbVector3& v) : x(v.x), y(v.y), z(v.z) {} tbVector3(const float f) : x(f), y(f), z(f) {} tbVector3(const float _x, const float _y, const float _z) : x(_x), y(_y), z(_z) {} tbVector3(const float* pfComponent) : x(pfComponent[0]), y(pfComponent[1]), z(pfComponent[2]) {} tbVector3(const D3DVECTOR& v) : vD3DVector(v) {} // Casting-Operatoren operator float* () {return (float*)(c);} operator D3DVECTOR& () {return vD3DVector;} operator const D3DVECTOR& () const {return vD3DVector;} // Zuweisungsoperatoren tbVector3& operator = (const tbVector3& v) {x = v.x; y = v.y; z = v.z; return *this;} tbVector3& operator += (const tbVector3& v) {x += v.x; y += v.y; z += v.z; return *this;} tbVector3& operator -= (const tbVector3& v) {x -= v.x; y -= v.y; z -= v.z; return *this;} tbVector3& operator *= (const tbVector3& v) {x *= v.x; y *= v.y; z *= v.z; return *this;} tbVector3& operator *= (const float f) {x *= f; y *= f; z *= f; return *this;} tbVector3& operator /= (const tbVector3& v) {x /= v.x; y /= v.y; z /= v.z; return *this;} tbVector3& operator /= (const float f) {x /= f; y /= f; z /= f; return *this;} }; // Arithmetische Operatoren inline tbVector3 operator + (const tbVector3& a, const tbVector3& b) {return tbVector3(a.x + b.x, a.y + b.y, a.z + b.z);} inline tbVector3 operator - (const tbVector3& a, const tbVector3& b) {return tbVector3(a.x - b.x, a.y - b.y, a.z - b.z);} inline tbVector3 operator - (const tbVector3& v) {return tbVector3(-v.x, -v.y, -v.z);} inline tbVector3 operator * (const tbVector3& a, const tbVector3& b) {return tbVector3(a.x * b.x, a.y * b.y, a.z * b.z);} inline tbVector3 operator * (const tbVector3& v, const float f) {return tbVector3(v.x * f, v.y * f, v.z * f);} inline tbVector3 operator * (const float f, const tbVector3& v) {return tbVector3(v.x * f, v.y * f, v.z * f);} inline tbVector3 operator / (const tbVector3& a, const tbVector3& b) {return tbVector3(a.x / b.x, a.y / b.y, a.z / b.z);} inline tbVector3 operator / (const tbVector3& v, const float f) {return tbVector3(v.x / f, v.y / f, v.z / f);} // Vergleichsoperatoren inline bool operator == (const tbVector3& a, const tbVector3& b) {if(a.x != b.x) return false; if(a.y != b.y) return false; return a.z == b.z;} inline bool operator != (const tbVector3& a, const tbVector3& b) {if(a.x != b.x) return true; if(a.y != b.y) return true; return a.z != b.z;} // ****************************************************************** // Funktionen deklarieren inline float tbVector3Length(const tbVector3& v) {return sqrtf(v.x * v.x + v.y * v.y + v.z * v.z);} inline float tbVector3LengthSq(const tbVector3& v) {return v.x * v.x + v.y * v.y + v.z * v.z;} inline tbVector3 tbVector3Normalize(const tbVector3& v) {return v / sqrtf(v.x * v.x + v.y * v.y + v.z * v.z);} inline tbVector3 tbVector3NormalizeEx(const tbVector3& v) {return v / (sqrtf(v.x * v.x + v.y * v.y + v.z * v.z) + 0.0001f);} inline tbVector3 tbVector3Cross(const tbVector3& v1, const tbVector3& v2) {return tbVector3(v1.y * v2.z - v1.z * v2.y, v1.z * v2.x - v1.x * v2.z, v1.x * v2.y - v1.y * v2.x);} inline float tbVector3Dot(const tbVector3& v1, const tbVector3& v2) {return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z;} inline float tbVector3Angle(const tbVector3& v1, const tbVector3& v2) {return acosf((v1.x * v2.x + v1.y * v2.y + v1.z * v2.z) / sqrtf((v1.x * v1.x + v1.y * v1.y + v1.z * v1.z) * (v2.x * v2.x + v2.y * v2.y + v2.z * v2.z)));} inline tbVector3 tbVector3InterpolateCoords(const tbVector3& v1, const tbVector3& v2, const float p) {return v1 + p * (v2 - v1);} inline tbVector3 tbVector3InterpolateNormal(const tbVector3& v1, const tbVector3& v2, const float p) {return tbVector3NormalizeEx(v1 + p * (v2 - v1));} inline tbVector3 tbVector3Min(const tbVector3& v1, const tbVector3& v2) {return tbVector3(TB_MIN(v1.x, v2.x), TB_MIN(v1.y, v2.y), TB_MIN(v1.z, v2.z));} inline tbVector3 tbVector3Max(const tbVector3& v1, const tbVector3& v2) {return tbVector3(TB_MAX(v1.x, v2.x), TB_MAX(v1.y, v2.y), TB_MAX(v1.z, v2.z));} inline tbVector3 tbVector3Random() {return tbVector3NormalizeEx(tbVector3(tbFloatRandom(-1.0f, 1.0f), tbFloatRandom(-1.0f, 1.0f), tbFloatRandom(-1.0f, 1.0f)));} // ****************************************************************** |
21.09.2005, 16:21
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/******************************************************************** _________ __ _____ /\___ ___\ /\_\ /\ __\ \/__/\ \__/ _ __\/_/_ \ \ \_\\ ____ _____ __ \ \ \ /\`´__\ /\ \ \ \ __\ /\ __\_ /\ __\ /´__`\ \ \ \ \ \ \/ \ \ \ \ \ \_\\\ \\_\ \\ \____\ /\ __/ \ \_\ \ \_\ \ \_\ \ \____\\ \___\ \ \____\\ \____\ \/_/ \/_/ \/_/ \/____/ \/__/ \/____/ \/____/ tbVector3.h =========== Diese Datei ist Teil der TriBase-Engine. Zweck: Rechnen mit 3D-Vektoren Autor: David Scherfgen ********************************************************************/ // Verwendete Symbole vordefinieren class tbMatrix; // ****************************************************************** // Die 3D-Vektor-Klasse class TRIBASE_API tbVector3 { public: // Variablen union { struct { float x; // Koordinaten float y; float z; }; struct { float u; // Texturkoordinaten float v; float w; }; float c[3]; // Array der Koordinaten D3DVECTOR vD3DVector; // Vektor in Form eines Direct3D-Vektors }; // Konstruktoren inline tbVector3() {} inline tbVector3(const float f) : x(f), y(f), z(f) {} inline tbVector3(const float _x, const float _y, const float _z) : x(_x), y(_y), z(_z) {} inline tbVector3(const float* pfComponent) : x(pfComponent[0]), y(pfComponent[1]), z(pfComponent[2]) {} inline tbVector3(const D3DVECTOR& v) : vD3DVector(v) {} // Casting-Operatoren inline operator float* () {return (float*)(c);} inline operator D3DVECTOR& () {return vD3DVector;} // Arithmetische Operatoren inline tbVector3 operator + (const tbVector3& v) const {return tbVector3(x + v.x, y + v.y, z + v.z);} inline tbVector3 operator - (const tbVector3& v) const {return tbVector3(x - v.x, y - v.y, z - v.z);} inline tbVector3 operator - () const {return tbVector3(-x, -y, -z);} inline tbVector3 operator * (const tbVector3& v) const {return tbVector3(x * v.x, y * v.y, z * v.z);} inline tbVector3 operator * (const float f) const {return tbVector3(x * f, y * f, z * f);} inline tbVector3 operator / (const tbVector3& v) const {return tbVector3(x / v.x, y / v.y, z / v.z);} inline tbVector3 operator / (const float f) const {return tbVector3(x / f, y / f, z / f);} inline friend tbVector3 operator * (const float f, const tbVector3& v) {return tbVector3(v.x * f, v.y * f, v.z * f);} // Zuweisungsoperatoren inline tbVector3 operator = (const tbVector3& v) {x = v.x; y = v.y; z = v.z; return *this;} inline tbVector3 operator += (const tbVector3& v) {x += v.x; y += v.y; z += v.z; return *this;} inline tbVector3 operator -= (const tbVector3& v) {x -= v.x; y -= v.y; z -= v.z; return *this;} inline tbVector3 operator *= (const tbVector3& v) {x *= v.x; y *= v.y; z *= v.z; return *this;} inline tbVector3 operator *= (const float f) {x *= f; y *= f; z *= f; return *this;} inline tbVector3 operator /= (const tbVector3& v) {x /= v.x; y /= v.y; z /= v.z; return *this;} inline tbVector3 operator /= (const float f) {x /= f; y /= f; z /= f; return *this;} // Vergleichsoperatoren inline bool operator == (const tbVector3& v) const {if(x != v.x) return false; if(y != v.y) return false; return z == v.z;} inline bool operator != (const tbVector3& v) const {if(x != v.x) return true; if(y != v.y) return true; return z != v.z;} }; // ****************************************************************** // Funktionen deklarieren inline float tbVector3Length(const tbVector3& v) {return sqrtf(v.x * v.x + v.y * v.y + v.z * v.z);} inline float tbVector3LengthSq(const tbVector3& v) {return v.x * v.x + v.y * v.y + v.z * v.z;} inline tbVector3 tbVector3Normalize(const tbVector3& v) {return v / sqrtf(v.x * v.x + v.y * v.y + v.z * v.z);} inline tbVector3 tbVector3NormalizeEx(const tbVector3& v) {return v / (sqrtf(v.x * v.x + v.y * v.y + v.z * v.z) + 0.0001f);} inline tbVector3 tbVector3Cross(const tbVector3& v1, const tbVector3& v2) {return tbVector3(v1.y * v2.z - v1.z * v2.y, v1.z * v2.x - v1.x * v2.z, v1.x * v2.y - v1.y * v2.x);} inline float tbVector3Dot(const tbVector3& v1, const tbVector3& v2) {return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z;} inline float tbVector3Angle(const tbVector3& v1, const tbVector3& v2) {return acosf(tbVector3Dot(tbVector3NormalizeEx(v1), tbVector3NormalizeEx(v2)));} inline tbVector3 tbVector3InterpolateCoords(const tbVector3& v1, const tbVector3& v2, const float p) {return v1 + p * (v2 - v1);} inline tbVector3 tbVector3InterpolateNormal(const tbVector3& v1, const tbVector3& v2, const float p) {return tbVector3Normalize(v1 + p * (v2 - v1));} inline tbVector3 tbVector3Min(const tbVector3& v1, const tbVector3& v2) {return tbVector3(TB_MIN(v1.x, v2.x), TB_MIN(v1.y, v2.y), TB_MIN(v1.z, v2.z));} inline tbVector3 tbVector3Max(const tbVector3& v1, const tbVector3& v2) {return tbVector3(TB_MAX(v1.x, v2.x), TB_MAX(v1.y, v2.y), TB_MAX(v1.z, v2.z));} inline tbVector3 tbVector3Random() {return tbVector3NormalizeEx(tbVector3(tbFloatRandom(-1.0f, 1.0f), tbFloatRandom(-1.0f, 1.0f), tbFloatRandom(-1.0f, 1.0f)));} // ****************************************************************** |
29.04.2024, 10:12
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