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101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
/*
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* BattleFieldController.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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#pragma once
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#include "../../lib/battle/BattleHex.h"
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#include "../gui/CIntObject.h"
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VCMI_LIB_NAMESPACE_BEGIN
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class CStack;
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class Rect;
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class Point;
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VCMI_LIB_NAMESPACE_END
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class BattleHero;
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class Canvas;
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class IImage;
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class BattleInterface;
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/// Handles battlefield grid as well as rendering of background layer of battle interface
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class BattleFieldController : public CIntObject
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{
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BattleInterface & owner;
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std::shared_ptr<IImage> background;
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std::shared_ptr<IImage> cellBorder;
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std::shared_ptr<IImage> cellUnitMovementHighlight;
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std::shared_ptr<IImage> cellShade;
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/// Canvas that contains background, hex grid (if enabled), absolute obstacles and movement range of active stack
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std::unique_ptr<Canvas> backgroundWithHexes;
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/// hex from which the stack would perform attack with current cursor
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BattleHex attackingHex;
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/// hexes to which currently active stack can move
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std::vector<BattleHex> occupyableHexes;
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/// hexes that when in front of a unit cause it's amount box to move back
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std::array<bool, GameConstants::BFIELD_SIZE> stackCountOutsideHexes;
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void showHighlightedHexForMovement(Canvas& canvas, BattleHex hex, bool darkBorder);
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void showShadedHex(Canvas & to, BattleHex hex, bool darkBorder);
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std::set<BattleHex> getHighlightedHexesForActiveStack();
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std::set<BattleHex> getMovementRangeForHoveredStack();
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std::set<BattleHex> getHighlightedHexesForSpellRange();
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std::set<BattleHex> getHighlightedHexesMovementTarget();
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void showBackground(Canvas & canvas);
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void showBackgroundImage(Canvas & canvas);
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void showBackgroundImageWithHexes(Canvas & canvas);
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void showHighlightedHexes(Canvas & canvas);
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void updateAccessibleHexes();
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BattleHex::EDir selectAttackDirection(BattleHex myNumber, const Point & point);
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void mouseMoved(const Point & cursorPosition) override;
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void clickLeft(tribool down, bool previousState) override;
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void clickRight(tribool down, bool previousState) override;
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void showAll(SDL_Surface * to) override;
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void show(SDL_Surface * to) override;
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public:
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BattleFieldController(BattleInterface & owner);
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void createHeroes();
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void redrawBackgroundWithHexes();
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void renderBattlefield(Canvas & canvas);
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/// Returns position of hex relative to owner (BattleInterface)
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Rect hexPositionLocal(BattleHex hex) const;
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/// Returns position of hex relative to game window
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Rect hexPositionAbsolute(BattleHex hex) const;
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/// Checks whether selected pixel is transparent, uses local coordinates of a hex
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bool isPixelInHex(Point const & position);
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/// Returns ID of currently hovered hex or BattleHex::INVALID if none
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BattleHex getHoveredHex();
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/// returns true if selected tile can be attacked in melee by current stack
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bool isTileAttackable(const BattleHex & number) const;
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/// returns true if stack should render its stack count image in default position - outside own hex
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bool stackCountOutsideHex(const BattleHex & number) const;
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void setBattleCursor(BattleHex myNumber);
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BattleHex fromWhichHexAttack(BattleHex myNumber);
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};
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