indexer/tesselator_decl.hpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

#pragma once

#include "base/assert.hpp"

namespace tesselator
{
  // Edge of graph, builded from triangles list.
  struct Edge
  {
    int m_p[2];       // indexes of connected triangles (0 -> 1)
    uint64_t m_delta; // delta of 1 - triangle from 0 - triangle

    // intersected rib of 0 - triangle:
    // - -1 - uninitialized or root edge
    // -  0 - this edge intersects 1-2 rib;
    // -  1 - this edge intersects 2-0 rib;
    int8_t m_side;

    Edge(int from, int to, uint64_t delta, char side)
      : m_delta(delta), m_side(side)
    {
      m_p[0] = from;
      m_p[1] = to;
    }
  };
}