libsegl/punkt2d.cpp

/* libsegl - Sebas Extended GL Library
 *           Collection of Opengl/3D-Math helpers
 *
 *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
 *      http://www.seba-geek.de
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 * 
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301, USA.
 */

#include "punkt2d.h"

namespace segl {

Punkt2D::Punkt2D() {
	x = y = 0.0f;
}

Punkt2D::Punkt2D(float _x, float _y) {
	set(_x, _y);
}

void Punkt2D::set(float _x, float _y) {
	x = _x;
	y = _y;
}

void Punkt2D::print(std::string coordname) {
	if(coordname!="")
		coordname.append(" ");
	std::cout << coordname << "Coord: (" << x << ", " << y << ")" << std::endl;
}

float Punkt2D::abs() {
	return sqrt(x*x + y*y);
}

void Punkt2D::normalize() {
	float a = abs();
	x /= a;
	y /= a;
}

Punkt2D Punkt2D::getNormalized() const {
	Punkt2D ret(*this);
	ret.normalize();
	return ret;
}

Punkt2D Punkt2D::operator+(const Punkt2D &b) {
	Punkt2D c;
	c.x =  x + b.x;
	c.y =  y + b.y;
// 	c.z =  z + b.z;
	
	return c;
}

Punkt2D Punkt2D::operator-(const Punkt2D &b) {
	Punkt2D c;
	c.x =  x - b.x;
	c.y =  y - b.y;
// 	c.z =  z - b.z;
	
	return c;
}

Punkt2D& Punkt2D::operator+=(const Punkt2D &b) {
	x +=  b.x;
	y +=  b.y;
// 	z +=  b.z;
	
	return *this;
}

Punkt2D& Punkt2D::operator-=(const Punkt2D &b) {
	x -=  b.x;
	y -=  b.y;
// 	z -=  b.z;
	
	return *this;
}

Punkt2D Punkt2D::operator+(const float &_m) {
	return Punkt2D(x+_m, y+_m);
}

Punkt2D Punkt2D::operator-(const float &_m) {
	return Punkt2D(x-_m, y-_m);
}

Punkt2D Punkt2D::operator*(const float &_m) {
	return Punkt2D(x*_m, y*_m);
}

Punkt2D Punkt2D::operator/(const float &_m) {
	return Punkt2D(x/_m, y/_m);
}

Punkt2D& Punkt2D::operator+=(const float &_m) {
	x += _m;
	y += _m;
// 	z += _m;
	return *this;
}
Punkt2D& Punkt2D::operator-=(const float &_m) {
	x -= _m;
	y -= _m;
// 	z -= _m;
	return *this;
}
Punkt2D& Punkt2D::operator*=(const float &_m) {
	x *= _m;
	y *= _m;
// 	z *= _m;
	return *this;
}
Punkt2D& Punkt2D::operator/=(const float &_m) {
	x /= _m;
	y /= _m;
// 	z /= _m;
	return *this;
}

float Punkt2D::operator*(const Punkt2D& _m) {
	return x * _m.x + y * _m.y;
}

Punkt2D Punkt2D::operator-() {
	return Punkt2D(-x, -y);
}

bool Punkt2D::operator==(const Punkt2D& b) {
	return ( x==b.x && y==b.y);
}
bool Punkt2D::operator!=(const Punkt2D& b) {
	return !(*this==b);
}

// Freunde

segl::Punkt2D operator+(const float& _m, const segl::Punkt2D& b) {
	return segl::Punkt2D(b.x+_m, b.y+_m);
}

segl::Punkt2D operator-(const float& _m, const segl::Punkt2D& b) {
	return segl::Punkt2D(b.x-_m, b.y-_m);
}

segl::Punkt2D operator*(const float& _m, const segl::Punkt2D& b) {
	return segl::Punkt2D(b.x*_m, b.y*_m);
}

segl::Punkt2D operator/(const float& _m, const segl::Punkt2D& b) {
	return segl::Punkt2D(b.x/_m, b.y/_m);
}

} // namespace segl

void glTexCoord2f(segl::Punkt2D p) {
	glTexCoord2f(p.x, p.y);
}

float abs(segl::Punkt2D p) {
	return p.abs();
}

// Fixed Headers
void glTexCoordP2D(segl::Punkt2D p) {
	glTexCoord2f(p.x, p.y);
}