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118 lines
2.7 KiB
C++
118 lines
2.7 KiB
C++
#pragma once
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#include "GameConstants.h"
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/*
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* BattleHex.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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// for battle stacks' positions
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struct DLL_LINKAGE BattleHex
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{
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static const si16 INVALID = -1;
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enum EDir{RIGHT, BOTTOM_RIGHT, BOTTOM_LEFT, LEFT, TOP_LEFT, TOP_RIGHT};
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si16 hex;
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BattleHex() : hex(INVALID) {}
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BattleHex(si16 _hex) : hex(_hex) {}
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operator si16() const
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{
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return hex;
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}
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bool isValid() const
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{
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return hex >= 0 && hex < GameConstants::BFIELD_SIZE;
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}
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template<typename inttype>
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BattleHex(inttype x, inttype y)
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{
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setXY(x, y);
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}
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template<typename inttype>
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BattleHex(std::pair<inttype, inttype> xy)
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{
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setXY(xy);
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}
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template<typename inttype>
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void setX(inttype x)
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{
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setXY(x, getY());
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}
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template<typename inttype>
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void setY(inttype y)
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{
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setXY(getX(), y);
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}
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void setXY(si16 x, si16 y, bool hasToBeValid = true)
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{
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if(hasToBeValid)
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{
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assert(x >= 0 && x < GameConstants::BFIELD_WIDTH && y >= 0 && y < GameConstants::BFIELD_HEIGHT);
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}
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hex = x + y * GameConstants::BFIELD_WIDTH;
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}
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template<typename inttype>
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void setXY(std::pair<inttype, inttype> xy)
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{
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setXY(xy.first, xy.second);
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}
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si16 getY() const
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{
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return hex / GameConstants::BFIELD_WIDTH;
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}
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si16 getX() const
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{
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int pos = hex - getY() * GameConstants::BFIELD_WIDTH;
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return pos;
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}
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std::pair<si16, si16> getXY() const
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{
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return std::make_pair(getX(), getY());
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}
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//moving to direction
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BattleHex& moveInDir(EDir dir, bool hasToBeValid = true);
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void operator+=(EDir dir); //sugar for above
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//generates new BattleHex moved by given dir
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BattleHex operator+(EDir dir) const;
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std::vector<BattleHex> neighbouringTiles() const;
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//returns info about mutual position of given hexes (-1 - they're distant, 0 - left top, 1 - right top, 2 - right, 3 - right bottom, 4 - left bottom, 5 - left)
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static signed char mutualPosition(BattleHex hex1, BattleHex hex2);
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//returns distance between given hexes
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static char getDistance(BattleHex hex1, BattleHex hex2);
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template <typename Handler> void serialize(Handler &h, const int version)
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{
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h & hex;
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}
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static void checkAndPush(BattleHex tile, std::vector<BattleHex> & ret);
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bool isAvailable() const; //valid position not in first or last column
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static BattleHex getClosestTile(bool attackerOwned, BattleHex initialPos, std::set<BattleHex> & possibilities); //TODO: vector or set? copying one to another is bad
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};
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DLL_EXPORT std::ostream & operator<<(std::ostream & os, const BattleHex & hex);
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