mirror of
https://github.com/libSDL2pp/libSDL2pp.git
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120 lines
2.6 KiB
C++
120 lines
2.6 KiB
C++
/*
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libSDL2pp - C++ wrapper for libSDL2
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Copyright (C) 2013 Dmitry Marakasov <amdmi3@amdmi3.ru>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include <cassert>
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#include <SDL2pp/Point.hh>
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namespace SDL2pp {
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Point::Point() : valid_(false) {
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}
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Point::~Point() {
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}
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Point::Point(int x, int y) : valid_(true) {
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point_.x = x;
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point_.y = y;
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}
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Point Point::Null() {
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return Point();
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}
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bool Point::operator==(const Point& other) const {
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if (!valid_ || !other.valid_)
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return valid_ == other.valid_; // true only if both null
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return point_.x == other.point_.x && point_.y == other.point_.y;
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}
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bool Point::operator!=(const Point& other) const {
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return !(*this == other);
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}
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SDL_Point* Point::Get() {
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return valid_ ? &point_ : nullptr;
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}
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const SDL_Point* Point::Get() const {
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return valid_ ? &point_ : nullptr;
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}
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bool Point::IsNull() const {
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return !valid_;
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}
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int Point::GetX() const {
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assert(!IsNull());
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return point_.x;
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}
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void Point::SetX(int x) {
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assert(!IsNull());
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point_.x = x;
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}
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int Point::GetY() const {
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assert(!IsNull());
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return point_.y;
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}
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void Point::SetY(int y) {
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assert(!IsNull());
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point_.y = y;
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}
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Point Point::operator+(const Point& other) const {
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if (!valid_ || !other.valid_)
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return Point();
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return Point(point_.x + other.point_.x, point_.y + other.point_.y);
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}
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Point Point::operator-(const Point& other) const {
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if (!valid_ || !other.valid_)
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return Point();
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return Point(point_.x - other.point_.x, point_.y - other.point_.y);
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}
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Point& Point::operator+=(const Point& other) {
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if (!valid_ || !other.valid_) {
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valid_ = false;
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} else {
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point_.x += other.point_.x;
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point_.y += other.point_.y;
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}
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return *this;
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}
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Point& Point::operator-=(const Point& other) {
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if (!valid_ || !other.valid_) {
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valid_ = false;
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} else {
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point_.x -= other.point_.x;
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point_.y -= other.point_.y;
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}
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return *this;
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}
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}
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