mirror of https://github.com/axmolengine/axmol.git
119 lines
2.8 KiB
C
119 lines
2.8 KiB
C
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/*
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* Poly2Tri Copyright (c) 2009-2018, Poly2Tri Contributors
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* https://github.com/jhasse/poly2tri
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Poly2Tri nor the names of its contributors may be
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* used to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ADVANCED_FRONT_H
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#define ADVANCED_FRONT_H
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#include "../common/shapes.h"
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namespace p2t {
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struct Node;
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// Advancing front node
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struct Node {
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Point* point;
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Triangle* triangle;
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Node* next;
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Node* prev;
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double value;
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Node(Point& p) : point(&p), triangle(NULL), next(NULL), prev(NULL), value(p.x)
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{
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}
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Node(Point& p, Triangle& t) : point(&p), triangle(&t), next(NULL), prev(NULL), value(p.x)
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{
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}
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};
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// Advancing front
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class AdvancingFront {
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public:
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AdvancingFront(Node& head, Node& tail);
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// Destructor
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~AdvancingFront();
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Node* head();
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void set_head(Node* node);
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Node* tail();
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void set_tail(Node* node);
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Node* search();
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void set_search(Node* node);
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/// Locate insertion point along advancing front
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Node* LocateNode(double x);
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Node* LocatePoint(const Point* point);
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private:
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Node* head_, *tail_, *search_node_;
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Node* FindSearchNode(double x);
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};
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inline Node* AdvancingFront::head()
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{
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return head_;
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}
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inline void AdvancingFront::set_head(Node* node)
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{
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head_ = node;
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}
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inline Node* AdvancingFront::tail()
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{
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return tail_;
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}
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inline void AdvancingFront::set_tail(Node* node)
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{
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tail_ = node;
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}
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inline Node* AdvancingFront::search()
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{
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return search_node_;
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}
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inline void AdvancingFront::set_search(Node* node)
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{
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search_node_ = node;
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}
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}
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#endif
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