152 lines
4.0 KiB
Objective-C
152 lines
4.0 KiB
Objective-C
/****************************************************************************
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Copyright (c) 2003, Radon Labs GmbH
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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#ifndef MATH_RECTANGLE_H
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#define MATH_RECTANGLE_H
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//------------------------------------------------------------------------------
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/**
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@class Math::rectangle
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A 2d rectangle class.
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*/
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#include "core/types.h"
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//------------------------------------------------------------------------------
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namespace Math
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{
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template<class TYPE> class rectangle
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{
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public:
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/// default constructor
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rectangle();
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/// constructor 1
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rectangle(TYPE l, TYPE t, TYPE r, TYPE b);
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/// set content
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void set(TYPE l, TYPE t, TYPE r, TYPE b);
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/// return true if point is inside
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bool inside(TYPE x, TYPE y) const;
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/// return width
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TYPE width() const;
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/// return height
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TYPE height() const;
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/// return center x
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TYPE centerX() const;
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/// return center y
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TYPE centerY() const;
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TYPE left;
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TYPE top;
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TYPE right;
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TYPE bottom;
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};
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//------------------------------------------------------------------------------
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/**
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*/
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template<class TYPE>
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rectangle<TYPE>::rectangle()
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{
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// empty
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}
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//------------------------------------------------------------------------------
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/**
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*/
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template<class TYPE>
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rectangle<TYPE>::rectangle(TYPE l, TYPE t, TYPE r, TYPE b) :
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left(l),
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top(t),
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right(r),
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bottom(b)
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{
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n_assert(this->left <= this->right);
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n_assert(this->top <= this->bottom);
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}
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//------------------------------------------------------------------------------
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/**
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*/
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template<class TYPE> void
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rectangle<TYPE>::set(TYPE l, TYPE t, TYPE r, TYPE b)
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{
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n_assert(l <= r);
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n_assert(t <= b);
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this->left = l;
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this->top = t;
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this->right = r;
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this->bottom = b;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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template<class TYPE> bool
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rectangle<TYPE>::inside(TYPE x, TYPE y) const
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{
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return (this->left <= x) && (x <= this->right) && (this->top <= y) && (y <= this->bottom);
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}
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//------------------------------------------------------------------------------
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/**
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*/
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template<class TYPE> TYPE
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rectangle<TYPE>::width() const
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{
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return this->right - this->left;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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template<class TYPE> TYPE
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rectangle<TYPE>::height() const
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{
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return this->bottom - this->top;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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template<class TYPE> TYPE
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rectangle<TYPE>::centerX() const
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{
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return (this->left + this->right) / 2;
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}
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//------------------------------------------------------------------------------
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/**
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*/
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template<class TYPE> TYPE
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rectangle<TYPE>::centerY() const
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{
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return (this->top + this->bottom) / 2;
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}
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} // namespace Math
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//------------------------------------------------------------------------------
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#endif
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