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glest-source/source/shared_lib/include/graphics/vec.h

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// ==============================================================
// This file is part of Glest Shared Library (www.glest.org)
//
// Copyright (C) 2001-2008 Martiño Figueroa
//
// You can redistribute this code and/or modify it under
// the terms of the GNU General Public License as published
// by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version
// ==============================================================
#ifndef _SHARED_GRAPHICS_VEC_H_
#define _SHARED_GRAPHICS_VEC_H_
#include "math_wrapper.h"
#include <string>
#include <sstream>
#include <vector>
#include <stdexcept>
#include <stdlib.h>
#include <stdio.h>
#include <limits>
#include "byte_order.h"
//#include <tr1/unordered_map>
//using namespace std::tr1;
#include "data_types.h"
#include "leak_dumper.h"
using namespace std;
using namespace Shared::Platform;
namespace Shared{ namespace Graphics{
template<typename T>
inline T truncateDecimal(const T &value, int precision=6) {
T precNum = 0;
if(precision == 0) {
precNum = 1;
}
else if(precision == 1) {
precNum = 10;
}
else if(precision == 2) {
precNum = 100;
}
else if(precision == 3) {
precNum = 1000;
}
else if(precision == 4) {
precNum = 10000;
}
else if(precision == 5) {
precNum = 100000;
}
else if(precision == 6) {
precNum = 1000000;
}
else {
precNum = std::pow((T)10,(T)precision);
}
// See if we can avoid using an int64 for speed
// To avoid stupid VC++ compiler error: illegal token on right side of '::'
//#ifdef WIN32
//#undef max
//#endif
// static int MAX_INT_VALUE = numeric_limits<int>::max();
// if((T)value * (T)precNum <= MAX_INT_VALUE) {
// int resultInt = (int)((T)value * (T)precNum);
// T result = (T)resultInt / precNum;
// //printf("=======================\nvalue = %.10f\nresultInt: %d\nprecision: %d\nbecame: %.10f\n----------\n",value,resultInt,precision,result);
// return result;
// }
// Must use an int64 since the result is large
int64 resultInt = (int64)((T)value * (T)precNum);
T result = (T)((long double)resultInt / precNum);
return result;
}
inline std::vector<std::string> TokenizeString(const std::string str,const std::string delimiters) {
std::vector<std::string> tokens;
// Assume textLine contains the line of text to parse.
std::string textLine = str;
std::size_t pos = 0;
while( true ) {
std::size_t nextPos = textLine.find( delimiters, pos );
if( nextPos == textLine.npos ) {
tokens.push_back(textLine.substr(pos, textLine.length( )));
break;
}
tokens.push_back( std::string( textLine.substr( pos, nextPos - pos ) ) );
pos = nextPos + 1;
}
return tokens;
}
template<typename T>
inline T strToType(const std::string &s) {
char *endChar=NULL;
setlocale(LC_NUMERIC, "C");
T value= static_cast<T>(strtod(s.c_str(), &endChar));
if(*endChar!='\0'){
throw std::runtime_error("Error converting from string to type, found: [" + s + "]");
}
return value;
}
template<typename T> class Vec2;
template<typename T> class Vec3;
template<typename T> class Vec4;
template<class T>
void toEndianVecArray(T *vec, size_t size) {
static bool bigEndianSystem = Shared::PlatformByteOrder::isBigEndian();
if(bigEndianSystem == true) {
for(size_t i = 0; i < size; ++i) {
vec[i].toEndian();
}
}
}
template<class T>
void fromEndianVecArray(T *vec, size_t size) {
static bool bigEndianSystem = Shared::PlatformByteOrder::isBigEndian();
if(bigEndianSystem == true) {
for(size_t i = 0; i < size; ++i) {
vec[i].fromEndian();
}
}
}
// =====================================================
// class Vec2
// =====================================================
template<typename T>
class Vec2{
public:
T x;
T y;
public:
Vec2(){
x = 0;
y = 0;
};
explicit Vec2(T *p){
this->x= p[0];
this->y= p[1];
}
explicit Vec2(T xy){
this->x= xy;
this->y= xy;
}
template<typename S>
explicit Vec2(const Vec2<S> &v){
this->x= v.x;
this->y= v.y;
}
template<typename S>
explicit Vec2(Vec2<S> &v){
this->x= v.x;
this->y= v.y;
}
Vec2(T x, T y){
this->x= x;
this->y= y;
}
//template<typename S>
//size_t operator()(const Vec2<S> &v) const {
// return hash<T>()(v.x) ^ hash<T>()(v.y);
//}
//template<typename S>
//bool operator()(const Vec2<S> &a, const Vec2<S> &b) const {
// return a == b;
//}
inline T *ptr(){
return reinterpret_cast<T*>(this);
}
inline const T *ptr() const {
return reinterpret_cast<const T*>(this);
}
inline Vec2<T> & operator=(const Vec2<T> &v) {
this->x= v.x;
this->y= v.y;
return *this;
}
inline bool operator ==(const Vec2<T> &v) const{
return x==v.x && y==v.y;
}
inline bool operator !=(const Vec2<T> &v) const{
return x!=v.x || y!=v.y;
}
inline Vec2<T> operator +(const Vec2<T> &v) const{
return Vec2(x+v.x, y+v.y);
}
inline Vec2<T> operator -(const Vec2<T> &v) const{
return Vec2(x-v.x, y-v.y);
}
inline Vec2<T> operator -() const{
return Vec2(-x, -y);
}
inline Vec2<T> operator *(const Vec2<T> &v) const{
return Vec2(x*v.x, y*v.y);
}
inline Vec2<T> operator *(T s) const{
return Vec2(x*s, y*s);
}
inline Vec2<T> operator /(const Vec2<T> &v) const{
return Vec2(x/v.x, y/v.y);
}
inline Vec2<T> operator /(T s) const{
return Vec2(x/s, y/s);
}
inline Vec2<T> operator +=(const Vec2<T> &v){
x+=v.x;
y+=v.y;
return *this;
}
inline Vec2<T> operator -=(const Vec2<T> &v){
x-=v.x;
y-=v.y;
return *this;
}
inline Vec2<T> lerp(T t, const Vec2<T> &v) const{
return *this + (v - *this)*t;
}
inline T dot(const Vec2<T> &v) const{
return x*v.x+y*v.y;
}
inline float dist(const Vec2<T> &v) const{
float distance = Vec2<T>(v-*this).length();
distance = truncateDecimal<float>(distance,6);
return distance;
}
// strict week ordering, so Vec2<T> can be used as key for set<> or map<>
inline bool operator<(const Vec2<T> &v) const {
return x < v.x || (x == v.x && y < v.y);
}
inline float length() const {
float len = static_cast<float>(std::sqrt(static_cast<float>(x*x + y*y)));
len = truncateDecimal<float>(len,6);
return len;
}
inline void normalize(){
T m= length();
x/= m;
y/= m;
}
inline Vec2<T> rotate(float rad) {
float c = std::cos(rad),
s = std::sin(rad);
return Vec2<T>(x*c-y*s,x*s+y*c);
}
inline Vec2<T> rotateAround(float rad,const Vec2<T>& pt) {
return pt+(*this-pt).rotate(rad);
}
inline std::string getString() const {
std::ostringstream streamOut;
streamOut << "x [" << x;
streamOut << "] y [" << y << "]";
std::string result = streamOut.str();
streamOut.str(std::string());
return result;
}
// meetingPos="x [32] y [120]"
static inline Vec2<T> strToVec2(std::string value) {
Vec2<T> result;
std::vector<std::string> tokens = TokenizeString(value,"[");
//for(unsigned int i = 0; i < tokens.size(); ++i) {
//printf("#1 Vec2T i = %d [%s]\n",i,tokens[i].c_str());
//}
if(tokens.size() == 3) {
std::vector<std::string> tokens2 = TokenizeString(tokens[1],"]");
//for(unsigned int i = 0; i < tokens2.size(); ++i) {
//printf("#2 Vec2T i = %d [%s]\n",i,tokens2[i].c_str());
//}
std::vector<std::string> tokens3 = TokenizeString(tokens[2],"]");
//for(unsigned int i = 0; i < tokens3.size(); ++i) {
//printf("#3 Vec2T i = %d [%s]\n",i,tokens3[i].c_str());
//}
if(tokens2.size() == 2 && tokens3.size() == 2) {
result.x = (T)strToType<T>(tokens2[0]);
result.y = (T)strToType<T>(tokens3[0]);
//printf("#3 Vec2T [%s]\n",result.getString().c_str());
}
}
return result;
}
void toEndian() {
static bool bigEndianSystem = Shared::PlatformByteOrder::isBigEndian();
if(bigEndianSystem == true) {
this->x = Shared::PlatformByteOrder::toCommonEndian(this->x);
this->y = Shared::PlatformByteOrder::toCommonEndian(this->y);
}
}
void fromEndian() {
static bool bigEndianSystem = Shared::PlatformByteOrder::isBigEndian();
if(bigEndianSystem == true) {
this->x = Shared::PlatformByteOrder::fromCommonEndian(this->x);
this->y = Shared::PlatformByteOrder::fromCommonEndian(this->y);
}
}
};
template <typename T>
inline std::ostream& operator<<(std::ostream &stream, const Vec2<T> &vec) {
return stream << "(" << vec.x << ", " << vec.y << ")";
}
typedef Vec2<int> Vec2i;
typedef Vec2<bool> Vec2b;
typedef Vec2<char> Vec2c;
typedef Vec2<float> Vec2f;
typedef Vec2<double> Vec2d;
// =====================================================
// class Vec3
// =====================================================
template<typename T>
class Vec3 {
public:
T x;
T y;
T z;
public:
Vec3() {
x = 0;
y = 0;
z = 0;
};
explicit Vec3(T *p){
this->x= p[0];
this->y= p[1];
this->z= p[2];
}
explicit Vec3(T xyz){
this->x= xyz;
this->y= xyz;
this->z= xyz;
}
template<typename S>
explicit Vec3(const Vec3<S> &v){
this->x= v.x;
this->y= v.y;
this->z= v.z;
}
template<typename S>
explicit Vec3(Vec3<S> &v){
this->x= v.x;
this->y= v.y;
this->z= v.z;
}
Vec3(T x, T y, T z){
this->x= x;
this->y= y;
this->z= z;
}
explicit Vec3(Vec4<T> v){
this->x= v.x;
this->y= v.y;
this->z= v.z;
}
inline T *ptr(){
return reinterpret_cast<T*>(this);
}
inline const T *ptr() const{
return reinterpret_cast<const T*>(this);
}
inline Vec3<T> & operator=(const Vec3<T> &v) {
this->x= v.x;
this->y= v.y;
this->z= v.z;
return *this;
}
inline bool operator ==(const Vec3<T> &v) const{
return x==v.x && y==v.y && z==v.z;
}
inline bool operator !=(const Vec3<T> &v) const{
return x!=v.x || y!=v.y || z!=v.z;
}
inline Vec3<T> operator +(const Vec3<T> &v) const{
return Vec3(x+v.x, y+v.y, z+v.z);
}
inline Vec3<T> operator -(const Vec3<T> &v) const{
return Vec3(x-v.x, y-v.y, z-v.z);
}
inline Vec3<T> operator -() const{
return Vec3(-x, -y, -z);
}
inline Vec3<T> operator *(const Vec3<T> &v) const{
return Vec3(x*v.x, y*v.y, z*v.z);
}
inline Vec3<T> operator *(T s) const{
return Vec3(x*s, y*s, z*s);
}
inline Vec3<T> operator /(const Vec3<T> &v) const{
return Vec3(x/v.x, y/v.y, z/v.z);
}
inline Vec3<T> operator /(T s) const{
return Vec3(x/s, y/s, z/s);
}
inline Vec3<T> operator +=(const Vec3<T> &v){
x+=v.x;
y+=v.y;
z+=v.z;
return *this;
}
inline Vec3<T> operator -=(const Vec3<T> &v){
x-=v.x;
y-=v.y;
z-=v.z;
return *this;
}
inline bool operator <(const Vec3<T> &v) const {
return x < v.x || (x == v.x && y < v.y) || (x == v.x && y == v.y && z < v.z);
}
inline Vec3<T> lerp(T t, const Vec3<T> &v) const{
return *this + (v - *this) * t;
}
inline T dot(const Vec3<T> &v) const{
return x*v.x + y*v.y + z*v.z;
}
inline float dist(const Vec3<T> &v) const {
float distance = Vec3<T>(v-*this).length();
distance = truncateDecimal<float>(distance,6);
return distance;
}
inline float length() const {
float len = static_cast<float>(std::sqrt(x*x + y*y + z*z));
len = truncateDecimal<float>(len,6);
return len;
}
inline void normalize() {
T m= length();
x/= m;
y/= m;
z/= m;
}
inline Vec3<T> getNormalized() const {
T m= length();
return Vec3<T>(x/m, y/m, z/m);
}
inline Vec3<T> cross(const Vec3<T> &v) const{
return Vec3<T>(
this->y*v.z-this->z*v.y,
this->z*v.x-this->x*v.z,
this->x*v.y-this->y*v.x);
}
inline Vec3<T> normal(const Vec3<T> &p1, const Vec3<T> &p2) const{
Vec3<T> rv;
rv= (p2-*this).cross(p1-*this);
rv.normalize();
return rv;
}
inline Vec3<T> normal(const Vec3<T> &p1, const Vec3<T> &p2, const Vec3<T> &p3, const Vec3<T> &p4) const{
Vec3<T> rv;
rv= this->normal(p1, p2);
rv= rv + this->normal(p2, p3);
rv= rv + this->normal(p3, p4);
rv= rv + this->normal(p4, p1);
rv.normalize();
return rv;
}
inline std::string getString() const {
std::ostringstream streamOut;
streamOut << "x [" << x;
streamOut << "] y [" << y;
streamOut << "] z [" << z << "]";
std::string result = streamOut.str();
streamOut.str(std::string());
return result;
}
// playerColor="x [1] y [0] z [0]"
static inline Vec3<T> strToVec3(std::string value) {
Vec3<T> result;
std::vector<std::string> tokens = TokenizeString(value,"[");
//for(unsigned int i = 0; i < tokens.size(); ++i) {
//printf("#1 Vec2T i = %d [%s]\n",i,tokens[i].c_str());
//}
if(tokens.size() == 4) {
std::vector<std::string> tokens2 = TokenizeString(tokens[1],"]");
//for(unsigned int i = 0; i < tokens2.size(); ++i) {
//printf("#2 Vec2T i = %d [%s]\n",i,tokens2[i].c_str());
//}
std::vector<std::string> tokens3 = TokenizeString(tokens[2],"]");
//for(unsigned int i = 0; i < tokens3.size(); ++i) {
//printf("#3 Vec2T i = %d [%s]\n",i,tokens3[i].c_str());
//}
std::vector<std::string> tokens4 = TokenizeString(tokens[3],"]");
//for(unsigned int i = 0; i < tokens3.size(); ++i) {
//printf("#3 Vec2T i = %d [%s]\n",i,tokens3[i].c_str());
//}
if(tokens2.size() == 2 && tokens3.size() == 2 && tokens4.size() == 2) {
result.x = (T)strToType<T>(tokens2[0]);
result.y = (T)strToType<T>(tokens3[0]);
result.z = (T)strToType<T>(tokens4[0]);
//printf("#3 Vec2T [%s]\n",result.getString().c_str());
}
}
return result;
}
void toEndian() {
static bool bigEndianSystem = Shared::PlatformByteOrder::isBigEndian();
if(bigEndianSystem == true) {
this->x = Shared::PlatformByteOrder::toCommonEndian(this->x);
this->y = Shared::PlatformByteOrder::toCommonEndian(this->y);
this->z = Shared::PlatformByteOrder::toCommonEndian(this->z);
}
}
void fromEndian() {
static bool bigEndianSystem = Shared::PlatformByteOrder::isBigEndian();
if(bigEndianSystem == true) {
this->x = Shared::PlatformByteOrder::fromCommonEndian(this->x);
this->y = Shared::PlatformByteOrder::fromCommonEndian(this->y);
this->z = Shared::PlatformByteOrder::fromCommonEndian(this->z);
}
}
};
typedef Vec3<int> Vec3i;
typedef Vec3<bool> Vec3b;
typedef Vec3<char> Vec3c;
typedef Vec3<float> Vec3f;
typedef Vec3<double> Vec3d;
// =====================================================
// class Vec4
// =====================================================
template<typename T>
class Vec4 {
public:
T x;
T y;
T z;
T w;
public:
Vec4() {
x = 0;
y = 0;
z = 0;
w = 0;
};
explicit Vec4(const T *p){
this->x= p[0];
this->y= p[1];
this->z= p[2];
this->w= p[3];
}
explicit Vec4(T *p){
this->x= p[0];
this->y= p[1];
this->z= p[2];
this->w= p[3];
}
explicit Vec4(T xyzw){
this->x= xyzw;
this->y= xyzw;
this->z= xyzw;
this->w= xyzw;
}
template<typename S>
explicit Vec4(const Vec4<S> &v){
this->x= v.x;
this->y= v.y;
this->z= v.z;
this->w= v.w;
}
template<typename S>
explicit Vec4(Vec4<S> &v){
this->x= v.x;
this->y= v.y;
this->z= v.z;
this->w= v.w;
}
Vec4(T x, T y, T z, T w){
this->x= x;
this->y= y;
this->z= z;
this->w= w;
}
Vec4(Vec3<T> v, T w){
this->x= v.x;
this->y= v.y;
this->z= v.z;
this->w= w;
}
explicit Vec4(Vec3<T> v){
this->x= v.x;
this->y= v.y;
this->z= v.z;
this->w= 1;
}
inline T *ptr(){
return reinterpret_cast<T*>(this);
}
inline const T *ptr() const{
return reinterpret_cast<const T*>(this);
}
inline Vec4<T> & operator=(const Vec4<T> &v) {
this->x= v.x;
this->y= v.y;
this->z= v.z;
this->w= v.w;
return *this;
}
inline bool operator ==(const Vec4<T> &v) const{
return x==v.x && y==v.y && z==v.z && w==v.w;
}
inline bool operator !=(const Vec4<T> &v) const{
return x!=v.x || y!=v.y || z!=v.z || w!=v.w;
}
inline Vec4<T> operator +(const Vec4<T> &v) const{
return Vec4(x+v.x, y+v.y, z+v.z, w+v.w);
}
inline Vec4<T> operator -(const Vec4<T> &v) const{
return Vec4(x-v.x, y-v.y, z-v.z, w-v.w);
}
inline Vec4<T> operator -() const{
return Vec4(-x, -y, -z, -w);
}
inline Vec4<T> operator *(const Vec4<T> &v) const{
return Vec4(x*v.x, y*v.y, z*v.z, w*v.w);
}
inline Vec4<T> operator *(T s) const{
return Vec4(x*s, y*s, z*s, w*s);
}
inline Vec4<T> operator /(const Vec4<T> &v) const{
return Vec4(x/v.x, y/v.y, z/v.z, w/v.w);
}
inline Vec4<T> operator /(T s) const{
return Vec4(x/s, y/s, z/s, w/s);
}
inline Vec4<T> operator +=(const Vec4<T> &v){
x+=v.x;
y+=v.y;
z+=v.z;
w+=w.z;
return *this;
}
inline Vec4<T> operator -=(const Vec4<T> &v){
x-=v.x;
y-=v.y;
z-=v.z;
w-=w.z;
return *this;
}
inline bool operator <(const Vec4<T> &v) const {
return x < v.x || (x == v.x && y < v.y) ||
(x == v.x && y == v.y && z < v.z) ||
(x == v.x && y == v.y && z == v.z && w < v.w);
}
inline Vec4<T> lerp(T t, const Vec4<T> &v) const{
return *this + (v - *this) *t;
}
inline T dot(const Vec4<T> &v) const{
return x*v.x + y*v.y + z*v.z + w*v.w;
}
inline std::string getString() const {
std::ostringstream streamOut;
streamOut << "x [" << x;
streamOut << "] y [" << y;
streamOut << "] z [" << z;
streamOut << "] w [" << w << "]";
std::string result = streamOut.str();
streamOut.str(std::string());
return result;
}
// playerColor="x [1] y [0] z [0] w [0]"
static inline Vec4<T> strToVec4(std::string value) {
Vec4<T> result;
std::vector<std::string> tokens = TokenizeString(value,"[");
//for(unsigned int i = 0; i < tokens.size(); ++i) {
//printf("#1 Vec2T i = %d [%s]\n",i,tokens[i].c_str());
//}
if(tokens.size() == 5) {
std::vector<std::string> tokens2 = TokenizeString(tokens[1],"]");
//for(unsigned int i = 0; i < tokens2.size(); ++i) {
//printf("#2 Vec2T i = %d [%s]\n",i,tokens2[i].c_str());
//}
std::vector<std::string> tokens3 = TokenizeString(tokens[2],"]");
//for(unsigned int i = 0; i < tokens3.size(); ++i) {
//printf("#3 Vec2T i = %d [%s]\n",i,tokens3[i].c_str());
//}
std::vector<std::string> tokens4 = TokenizeString(tokens[3],"]");
//for(unsigned int i = 0; i < tokens3.size(); ++i) {
//printf("#3 Vec2T i = %d [%s]\n",i,tokens3[i].c_str());
//}
std::vector<std::string> tokens5 = TokenizeString(tokens[4],"]");
//for(unsigned int i = 0; i < tokens3.size(); ++i) {
//printf("#3 Vec2T i = %d [%s]\n",i,tokens3[i].c_str());
//}
if(tokens2.size() == 2 && tokens3.size() == 2 &&
tokens4.size() == 2 && tokens5.size() == 2) {
result.x = (T)strToType<T>(tokens2[0]);
result.y = (T)strToType<T>(tokens3[0]);
result.z = (T)strToType<T>(tokens4[0]);
result.w = (T)strToType<T>(tokens5[0]);
//printf("#3 Vec2T [%s]\n",result.getString().c_str());
}
}
return result;
}
void toEndian() {
static bool bigEndianSystem = Shared::PlatformByteOrder::isBigEndian();
if(bigEndianSystem == true) {
this->x = Shared::PlatformByteOrder::toCommonEndian(this->x);
this->y = Shared::PlatformByteOrder::toCommonEndian(this->y);
this->z = Shared::PlatformByteOrder::toCommonEndian(this->z);
this->w = Shared::PlatformByteOrder::toCommonEndian(this->w);
}
}
void fromEndian() {
static bool bigEndianSystem = Shared::PlatformByteOrder::isBigEndian();
if(bigEndianSystem == true) {
this->x = Shared::PlatformByteOrder::fromCommonEndian(this->x);
this->y = Shared::PlatformByteOrder::fromCommonEndian(this->y);
this->z = Shared::PlatformByteOrder::fromCommonEndian(this->z);
this->w = Shared::PlatformByteOrder::fromCommonEndian(this->w);
}
}
};
typedef Vec4<int> Vec4i;
typedef Vec4<bool> Vec4b;
typedef Vec4<char> Vec4c;
typedef Vec4<float> Vec4f;
typedef Vec4<double> Vec4d;
}} //enmd namespace
#endif
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