ClipmapUpdate.h

#pragma once
 
#include "ClipmapLevel.h"
 
namespace Cogs
{
  class ClipmapUpdate
  {
  public:
    ClipmapUpdate(ClipmapLevel * level, int west, int south, int east, int north);
    ClipmapUpdate(ClipmapLevel * level, Extent extent) : level(level), extent(extent) {}
 
    ClipmapLevel * getLevel() const { return level; }
 
    int getWest() const { return extent.west; }
    int getSouth() const { return extent.south; }
    int getEast() const { return extent.east; }
    int getNorth() const { return extent.north; }
 
    int getWidth() const;
    int getHeight() const;
 
    ClipmapUpdate addBufferWithinLevelNextExtent() const;
 
    static ClipmapUpdate intersectUpdates(const ClipmapUpdate & first, const ClipmapUpdate & second);
    static void splitUpdateToAvoidWrapping(const ClipmapUpdate & update, std::vector<ClipmapUpdate> & results);
 
    const Extent & getExtent() const { return extent; }
 
  private:
    ClipmapLevel * level;
    Extent extent;
  };
}