/* * BattleFieldController.cpp, part of VCMI engine * * Authors: listed in file AUTHORS in main folder * * License: GNU General Public License v2.0 or later * Full text of license available in license.txt file, in main folder * */ #include "StdInc.h" #include "BattleFieldController.h" #include "BattleInterface.h" #include "BattleWindow.h" #include "BattleActionsController.h" #include "BattleInterfaceClasses.h" #include "BattleEffectsController.h" #include "BattleSiegeController.h" #include "BattleStacksController.h" #include "BattleObstacleController.h" #include "BattleProjectileController.h" #include "BattleRenderer.h" #include "../CGameInfo.h" #include "../CPlayerInterface.h" #include "../render/CAnimation.h" #include "../render/Canvas.h" #include "../render/IImage.h" #include "../renderSDL/SDL_Extensions.h" #include "../render/IRenderHandler.h" #include "../gui/CGuiHandler.h" #include "../gui/CursorHandler.h" #include "../adventureMap/CInGameConsole.h" #include "../client/render/CAnimation.h" #include "../../CCallback.h" #include "../../lib/BattleFieldHandler.h" #include "../../lib/CConfigHandler.h" #include "../../lib/CStack.h" #include "../../lib/spells/ISpellMechanics.h" namespace HexMasks { // mask definitions that has set to 1 the edges present in the hex edges highlight image /* /\ 0 1 / \ | | 5 2 | | \ / 4 3 \/ */ enum HexEdgeMasks { empty = 0b000000, // empty used when wanting to keep indexes the same but no highlight should be displayed topLeft = 0b000001, topRight = 0b000010, right = 0b000100, bottomRight = 0b001000, bottomLeft = 0b010000, left = 0b100000, top = 0b000011, bottom = 0b011000, topRightHalfCorner = 0b000110, bottomRightHalfCorner = 0b001100, bottomLeftHalfCorner = 0b110000, topLeftHalfCorner = 0b100001, rightTopAndBottom = 0b001010, // special case, right half can be drawn instead of only top and bottom leftTopAndBottom = 0b010001, // special case, left half can be drawn instead of only top and bottom rightHalf = 0b001110, leftHalf = 0b110001, topRightCorner = 0b000111, bottomRightCorner = 0b011100, bottomLeftCorner = 0b111000, topLeftCorner = 0b100011 }; } std::map hexEdgeMaskToFrameIndex; // Maps HexEdgesMask to "Frame" indexes for range highligt images void initializeHexEdgeMaskToFrameIndex() { hexEdgeMaskToFrameIndex[HexMasks::empty] = 0; hexEdgeMaskToFrameIndex[HexMasks::topLeft] = 1; hexEdgeMaskToFrameIndex[HexMasks::topRight] = 2; hexEdgeMaskToFrameIndex[HexMasks::right] = 3; hexEdgeMaskToFrameIndex[HexMasks::bottomRight] = 4; hexEdgeMaskToFrameIndex[HexMasks::bottomLeft] = 5; hexEdgeMaskToFrameIndex[HexMasks::left] = 6; hexEdgeMaskToFrameIndex[HexMasks::top] = 7; hexEdgeMaskToFrameIndex[HexMasks::bottom] = 8; hexEdgeMaskToFrameIndex[HexMasks::topRightHalfCorner] = 9; hexEdgeMaskToFrameIndex[HexMasks::bottomRightHalfCorner] = 10; hexEdgeMaskToFrameIndex[HexMasks::bottomLeftHalfCorner] = 11; hexEdgeMaskToFrameIndex[HexMasks::topLeftHalfCorner] = 12; hexEdgeMaskToFrameIndex[HexMasks::rightTopAndBottom] = 13; hexEdgeMaskToFrameIndex[HexMasks::leftTopAndBottom] = 14; hexEdgeMaskToFrameIndex[HexMasks::rightHalf] = 13; hexEdgeMaskToFrameIndex[HexMasks::leftHalf] = 14; hexEdgeMaskToFrameIndex[HexMasks::topRightCorner] = 15; hexEdgeMaskToFrameIndex[HexMasks::bottomRightCorner] = 16; hexEdgeMaskToFrameIndex[HexMasks::bottomLeftCorner] = 17; hexEdgeMaskToFrameIndex[HexMasks::topLeftCorner] = 18; } BattleFieldController::BattleFieldController(BattleInterface & owner): owner(owner) { OBJ_CONSTRUCTION_CAPTURING_ALL_NO_DISPOSE; //preparing cells and hexes cellBorder = GH.renderHandler().loadImage(ImagePath::builtin("CCELLGRD.BMP"), EImageBlitMode::COLORKEY); cellShade = GH.renderHandler().loadImage(ImagePath::builtin("CCELLSHD.BMP")); cellUnitMovementHighlight = GH.renderHandler().loadImage(ImagePath::builtin("UnitMovementHighlight.PNG"), EImageBlitMode::COLORKEY); cellUnitMaxMovementHighlight = GH.renderHandler().loadImage(ImagePath::builtin("UnitMaxMovementHighlight.PNG"), EImageBlitMode::COLORKEY); attackCursors = GH.renderHandler().loadAnimation(AnimationPath::builtin("CRCOMBAT")); attackCursors->preload(); spellCursors = GH.renderHandler().loadAnimation(AnimationPath::builtin("CRSPELL")); spellCursors->preload(); initializeHexEdgeMaskToFrameIndex(); rangedFullDamageLimitImages = GH.renderHandler().loadAnimation(AnimationPath::builtin("battle/rangeHighlights/rangeHighlightsGreen.json")); rangedFullDamageLimitImages->preload(); shootingRangeLimitImages = GH.renderHandler().loadAnimation(AnimationPath::builtin("battle/rangeHighlights/rangeHighlightsRed.json")); shootingRangeLimitImages->preload(); flipRangeLimitImagesIntoPositions(rangedFullDamageLimitImages); flipRangeLimitImagesIntoPositions(shootingRangeLimitImages); if(!owner.siegeController) { auto bfieldType = owner.getBattle()->battleGetBattlefieldType(); if(bfieldType == BattleField::NONE) logGlobal->error("Invalid battlefield returned for current battle"); else background = GH.renderHandler().loadImage(bfieldType.getInfo()->graphics, EImageBlitMode::OPAQUE); } else { auto backgroundName = owner.siegeController->getBattleBackgroundName(); background = GH.renderHandler().loadImage(backgroundName, EImageBlitMode::OPAQUE); } pos.w = background->width(); pos.h = background->height(); backgroundWithHexes = std::make_unique(Point(background->width(), background->height())); updateAccessibleHexes(); addUsedEvents(LCLICK | SHOW_POPUP | MOVE | TIME | GESTURE); } void BattleFieldController::activate() { LOCPLINT->cingconsole->pos = this->pos; CIntObject::activate(); } void BattleFieldController::createHeroes() { OBJ_CONSTRUCTION_CAPTURING_ALL_NO_DISPOSE; // create heroes as part of our constructor for correct positioning inside battlefield if(owner.attackingHeroInstance) owner.attackingHero = std::make_shared(owner, owner.attackingHeroInstance, false); if(owner.defendingHeroInstance) owner.defendingHero = std::make_shared(owner, owner.defendingHeroInstance, true); } void BattleFieldController::gesture(bool on, const Point & initialPosition, const Point & finalPosition) { if (!on && pos.isInside(finalPosition)) clickPressed(finalPosition); } void BattleFieldController::gesturePanning(const Point & initialPosition, const Point & currentPosition, const Point & lastUpdateDistance) { Point distance = currentPosition - initialPosition; if (distance.length() < settings["battle"]["swipeAttackDistance"].Float()) hoveredHex = getHexAtPosition(initialPosition); else hoveredHex = BattleHex::INVALID; currentAttackOriginPoint = currentPosition; if (pos.isInside(initialPosition)) owner.actionsController->onHexHovered(getHoveredHex()); } void BattleFieldController::mouseMoved(const Point & cursorPosition, const Point & lastUpdateDistance) { hoveredHex = getHexAtPosition(cursorPosition); currentAttackOriginPoint = cursorPosition; if (pos.isInside(cursorPosition)) owner.actionsController->onHexHovered(getHoveredHex()); else owner.actionsController->onHoverEnded(); } void BattleFieldController::clickPressed(const Point & cursorPosition) { BattleHex selectedHex = getHoveredHex(); if (selectedHex != BattleHex::INVALID) owner.actionsController->onHexLeftClicked(selectedHex); } void BattleFieldController::showPopupWindow(const Point & cursorPosition) { BattleHex selectedHex = getHoveredHex(); if (selectedHex != BattleHex::INVALID) owner.actionsController->onHexRightClicked(selectedHex); } void BattleFieldController::renderBattlefield(Canvas & canvas) { Canvas clippedCanvas(canvas, pos); showBackground(clippedCanvas); BattleRenderer renderer(owner); renderer.execute(clippedCanvas); owner.projectilesController->render(clippedCanvas); } void BattleFieldController::showBackground(Canvas & canvas) { if (owner.stacksController->getActiveStack() != nullptr ) showBackgroundImageWithHexes(canvas); else showBackgroundImage(canvas); showHighlightedHexes(canvas); } void BattleFieldController::showBackgroundImage(Canvas & canvas) { canvas.draw(background, Point(0, 0)); owner.obstacleController->showAbsoluteObstacles(canvas); if ( owner.siegeController ) owner.siegeController->showAbsoluteObstacles(canvas); if (settings["battle"]["cellBorders"].Bool()) { for (int i=0; igetActiveStack(); std::vector attackableHexes; if(activeStack) occupiableHexes = owner.getBattle()->battleGetAvailableHexes(activeStack, false, true, &attackableHexes); // prepare background graphic with hexes and shaded hexes backgroundWithHexes->draw(background, Point(0,0)); owner.obstacleController->showAbsoluteObstacles(*backgroundWithHexes); if(owner.siegeController) owner.siegeController->showAbsoluteObstacles(*backgroundWithHexes); // show shaded hexes for active's stack valid movement and the hexes that it can attack if(settings["battle"]["stackRange"].Bool()) { std::vector hexesToShade = occupiableHexes; hexesToShade.insert(hexesToShade.end(), attackableHexes.begin(), attackableHexes.end()); for(BattleHex hex : hexesToShade) { showHighlightedHex(*backgroundWithHexes, cellShade, hex, false); } } // draw cell borders if(settings["battle"]["cellBorders"].Bool()) { for(int i=0; idraw(cellBorder, hexPositionLocal(i).topLeft()); } } } void BattleFieldController::showHighlightedHex(Canvas & canvas, std::shared_ptr highlight, BattleHex hex, bool darkBorder) { Point hexPos = hexPositionLocal(hex).topLeft(); canvas.draw(highlight, hexPos); if(!darkBorder && settings["battle"]["cellBorders"].Bool()) canvas.draw(cellBorder, hexPos); } std::set BattleFieldController::getHighlightedHexesForActiveStack() { std::set result; if(!owner.stacksController->getActiveStack()) return result; if(!settings["battle"]["stackRange"].Bool()) return result; auto hoveredHex = getHoveredHex(); std::set set = owner.getBattle()->battleGetAttackedHexes(owner.stacksController->getActiveStack(), hoveredHex); for(BattleHex hex : set) result.insert(hex); return result; } std::set BattleFieldController::getMovementRangeForHoveredStack() { std::set result; if (!owner.stacksController->getActiveStack()) return result; if (!settings["battle"]["movementHighlightOnHover"].Bool() && !GH.isKeyboardShiftDown()) return result; auto hoveredStack = getHoveredStack(); if(hoveredStack) { std::vector v = owner.getBattle()->battleGetAvailableHexes(hoveredStack, true, true, nullptr); for(BattleHex hex : v) result.insert(hex); } return result; } std::set BattleFieldController::getHighlightedHexesForSpellRange() { std::set result; auto hoveredHex = getHoveredHex(); if(!settings["battle"]["mouseShadow"].Bool()) return result; const spells::Caster *caster = nullptr; const CSpell *spell = nullptr; spells::Mode mode = owner.actionsController->getCurrentCastMode(); spell = owner.actionsController->getCurrentSpell(hoveredHex); caster = owner.actionsController->getCurrentSpellcaster(); if(caster && spell) //when casting spell { // printing shaded hex(es) spells::BattleCast event(owner.getBattle().get(), caster, mode, spell); auto shadedHexes = spell->battleMechanics(&event)->rangeInHexes(hoveredHex); for(BattleHex shadedHex : shadedHexes) { if((shadedHex.getX() != 0) && (shadedHex.getX() != GameConstants::BFIELD_WIDTH - 1)) result.insert(shadedHex); } } return result; } std::set BattleFieldController::getHighlightedHexesForMovementTarget() { const CStack * stack = owner.stacksController->getActiveStack(); auto hoveredHex = getHoveredHex(); if(!stack) return {}; std::vector availableHexes = owner.getBattle()->battleGetAvailableHexes(stack, false, false, nullptr); auto hoveredStack = owner.getBattle()->battleGetStackByPos(hoveredHex, true); if(owner.getBattle()->battleCanAttack(stack, hoveredStack, hoveredHex)) { if(isTileAttackable(hoveredHex)) { BattleHex attackFromHex = fromWhichHexAttack(hoveredHex); if(stack->doubleWide()) return {attackFromHex, stack->occupiedHex(attackFromHex)}; else return {attackFromHex}; } } if(vstd::contains(availableHexes, hoveredHex)) { if(stack->doubleWide()) return {hoveredHex, stack->occupiedHex(hoveredHex)}; else return {hoveredHex}; } if(stack->doubleWide()) { for(auto const & hex : availableHexes) { if(stack->occupiedHex(hex) == hoveredHex) return {hoveredHex, hex}; } } return {}; } // Range limit highlight helpers std::vector BattleFieldController::getRangeHexes(BattleHex sourceHex, uint8_t distance) { std::vector rangeHexes; if (!settings["battle"]["rangeLimitHighlightOnHover"].Bool() && !GH.isKeyboardShiftDown()) return rangeHexes; // get only battlefield hexes that are within the given distance for(auto i = 0; i < GameConstants::BFIELD_SIZE; i++) { BattleHex hex(i); if(hex.isAvailable() && BattleHex::getDistance(sourceHex, hex) <= distance) rangeHexes.push_back(hex); } return rangeHexes; } std::vector BattleFieldController::getRangeLimitHexes(BattleHex hoveredHex, std::vector rangeHexes, uint8_t distanceToLimit) { std::vector rangeLimitHexes; // from range hexes get only the ones at the limit for(auto & hex : rangeHexes) { if(BattleHex::getDistance(hoveredHex, hex) == distanceToLimit) rangeLimitHexes.push_back(hex); } return rangeLimitHexes; } bool BattleFieldController::IsHexInRangeLimit(BattleHex hex, std::vector & rangeLimitHexes, int * hexIndexInRangeLimit) { bool hexInRangeLimit = false; if(!rangeLimitHexes.empty()) { auto pos = std::find(rangeLimitHexes.begin(), rangeLimitHexes.end(), hex); *hexIndexInRangeLimit = std::distance(rangeLimitHexes.begin(), pos); hexInRangeLimit = pos != rangeLimitHexes.end(); } return hexInRangeLimit; } std::vector> BattleFieldController::getOutsideNeighbourDirectionsForLimitHexes(std::vector wholeRangeHexes, std::vector rangeLimitHexes) { std::vector> output; if(wholeRangeHexes.empty()) return output; for(auto & hex : rangeLimitHexes) { // get all neighbours and their directions auto neighbouringTiles = hex.allNeighbouringTiles(); std::vector outsideNeighbourDirections; // for each neighbour add to output only the valid ones and only that are not found in range Hexes for(auto direction = 0; direction < 6; direction++) { if(!neighbouringTiles[direction].isAvailable()) continue; auto it = std::find(wholeRangeHexes.begin(), wholeRangeHexes.end(), neighbouringTiles[direction]); if(it == wholeRangeHexes.end()) outsideNeighbourDirections.push_back(BattleHex::EDir(direction)); // push direction } output.push_back(outsideNeighbourDirections); } return output; } std::vector> BattleFieldController::calculateRangeLimitHighlightImages(std::vector> hexesNeighbourDirections, std::shared_ptr limitImages) { std::vector> output; // if no image is to be shown an empty image is still added to help with traverssing the range if(hexesNeighbourDirections.empty()) return output; for(auto & directions : hexesNeighbourDirections) { std::bitset<6> mask; // convert directions to mask for(auto direction : directions) mask.set(direction); uint8_t imageKey = static_cast(mask.to_ulong()); output.push_back(limitImages->getImage(hexEdgeMaskToFrameIndex[imageKey])); } return output; } void BattleFieldController::calculateRangeLimitAndHighlightImages(uint8_t distance, std::shared_ptr rangeLimitImages, std::vector & rangeLimitHexes, std::vector> & rangeLimitHexesHighligts) { std::vector rangeHexes = getRangeHexes(hoveredHex, distance); rangeLimitHexes = getRangeLimitHexes(hoveredHex, rangeHexes, distance); std::vector> rangeLimitNeighbourDirections = getOutsideNeighbourDirectionsForLimitHexes(rangeHexes, rangeLimitHexes); rangeLimitHexesHighligts = calculateRangeLimitHighlightImages(rangeLimitNeighbourDirections, rangeLimitImages); } void BattleFieldController::flipRangeLimitImagesIntoPositions(std::shared_ptr images) { images->getImage(hexEdgeMaskToFrameIndex[HexMasks::topRight])->verticalFlip(); images->getImage(hexEdgeMaskToFrameIndex[HexMasks::right])->verticalFlip(); images->getImage(hexEdgeMaskToFrameIndex[HexMasks::bottomRight])->doubleFlip(); images->getImage(hexEdgeMaskToFrameIndex[HexMasks::bottomLeft])->horizontalFlip(); images->getImage(hexEdgeMaskToFrameIndex[HexMasks::bottom])->horizontalFlip(); images->getImage(hexEdgeMaskToFrameIndex[HexMasks::topRightHalfCorner])->verticalFlip(); images->getImage(hexEdgeMaskToFrameIndex[HexMasks::bottomRightHalfCorner])->doubleFlip(); images->getImage(hexEdgeMaskToFrameIndex[HexMasks::bottomLeftHalfCorner])->horizontalFlip(); images->getImage(hexEdgeMaskToFrameIndex[HexMasks::rightHalf])->verticalFlip(); images->getImage(hexEdgeMaskToFrameIndex[HexMasks::topRightCorner])->verticalFlip(); images->getImage(hexEdgeMaskToFrameIndex[HexMasks::bottomRightCorner])->doubleFlip(); images->getImage(hexEdgeMaskToFrameIndex[HexMasks::bottomLeftCorner])->horizontalFlip(); } void BattleFieldController::showHighlightedHexes(Canvas & canvas) { std::vector rangedFullDamageLimitHexes; std::vector shootingRangeLimitHexes; std::vector> rangedFullDamageLimitHexesHighligts; std::vector> shootingRangeLimitHexesHighligts; std::set hoveredStackMovementRangeHexes = getMovementRangeForHoveredStack(); std::set hoveredSpellHexes = getHighlightedHexesForSpellRange(); std::set hoveredMoveHexes = getHighlightedHexesForMovementTarget(); BattleHex hoveredHex = getHoveredHex(); const CStack * hoveredStack = getHoveredStack(); if(!hoveredStack && hoveredHex == BattleHex::INVALID) return; // skip range limit calculations if unit hovered is not a shooter if(hoveredStack && hoveredStack->isShooter()) { // calculate array with highlight images for ranged full damage limit auto rangedFullDamageDistance = hoveredStack->getRangedFullDamageDistance(); calculateRangeLimitAndHighlightImages(rangedFullDamageDistance, rangedFullDamageLimitImages, rangedFullDamageLimitHexes, rangedFullDamageLimitHexesHighligts); // calculate array with highlight images for shooting range limit auto shootingRangeDistance = hoveredStack->getShootingRangeDistance(); calculateRangeLimitAndHighlightImages(shootingRangeDistance, shootingRangeLimitImages, shootingRangeLimitHexes, shootingRangeLimitHexesHighligts); } auto const & hoveredMouseHexes = hoveredHex != BattleHex::INVALID && owner.actionsController->currentActionSpellcasting(getHoveredHex()) ? hoveredSpellHexes : hoveredMoveHexes; for(int hex = 0; hex < GameConstants::BFIELD_SIZE; ++hex) { bool stackMovement = hoveredStackMovementRangeHexes.count(hex); bool mouse = hoveredMouseHexes.count(hex); // calculate if hex is Ranged Full Damage Limit and its position in highlight array int hexIndexInRangedFullDamageLimit = 0; bool hexInRangedFullDamageLimit = IsHexInRangeLimit(hex, rangedFullDamageLimitHexes, &hexIndexInRangedFullDamageLimit); // calculate if hex is Shooting Range Limit and its position in highlight array int hexIndexInShootingRangeLimit = 0; bool hexInShootingRangeLimit = IsHexInRangeLimit(hex, shootingRangeLimitHexes, &hexIndexInShootingRangeLimit); if(stackMovement && mouse) // area where hovered stackMovement can move shown with highlight. Because also affected by mouse cursor, shade as well { showHighlightedHex(canvas, cellUnitMovementHighlight, hex, false); showHighlightedHex(canvas, cellShade, hex, true); } if(!stackMovement && mouse) // hexes affected only at mouse cursor shown as shaded { showHighlightedHex(canvas, cellShade, hex, true); } if(stackMovement && !mouse) // hexes where hovered stackMovement can move shown with highlight { showHighlightedHex(canvas, cellUnitMovementHighlight, hex, false); } if(hexInRangedFullDamageLimit) { showHighlightedHex(canvas, rangedFullDamageLimitHexesHighligts[hexIndexInRangedFullDamageLimit], hex, false); } if(hexInShootingRangeLimit) { showHighlightedHex(canvas, shootingRangeLimitHexesHighligts[hexIndexInShootingRangeLimit], hex, false); } } } Rect BattleFieldController::hexPositionLocal(BattleHex hex) const { int x = 14 + ((hex.getY())%2==0 ? 22 : 0) + 44*hex.getX(); int y = 86 + 42 *hex.getY(); int w = cellShade->width(); int h = cellShade->height(); return Rect(x, y, w, h); } Rect BattleFieldController::hexPositionAbsolute(BattleHex hex) const { return hexPositionLocal(hex) + pos.topLeft(); } bool BattleFieldController::isPixelInHex(Point const & position) { return !cellShade->isTransparent(position); } BattleHex BattleFieldController::getHoveredHex() { return hoveredHex; } const CStack* BattleFieldController::getHoveredStack() { auto hoveredHex = getHoveredHex(); const CStack* hoveredStack = owner.getBattle()->battleGetStackByPos(hoveredHex, true); if(owner.windowObject->getQueueHoveredUnitId().has_value()) { auto stacks = owner.getBattle()->battleGetAllStacks(); for(const CStack * stack : stacks) if(stack->unitId() == *owner.windowObject->getQueueHoveredUnitId()) hoveredStack = stack; } return hoveredStack; } BattleHex BattleFieldController::getHexAtPosition(Point hoverPos) { if (owner.attackingHero) { if (owner.attackingHero->pos.isInside(hoverPos)) return BattleHex::HERO_ATTACKER; } if (owner.defendingHero) { if (owner.attackingHero->pos.isInside(hoverPos)) return BattleHex::HERO_DEFENDER; } for (int h = 0; h < GameConstants::BFIELD_SIZE; ++h) { Rect hexPosition = hexPositionAbsolute(h); if (!hexPosition.isInside(hoverPos)) continue; if (isPixelInHex(hoverPos - hexPosition.topLeft())) return h; } return BattleHex::INVALID; } BattleHex::EDir BattleFieldController::selectAttackDirection(BattleHex myNumber) { const bool doubleWide = owner.stacksController->getActiveStack()->doubleWide(); auto neighbours = myNumber.allNeighbouringTiles(); // 0 1 // 5 x 2 // 4 3 // if true - our current stack can move into this hex (and attack) std::array attackAvailability; if (doubleWide) { // For double-hexes we need to ensure that both hexes needed for this direction are occupyable: // | -0- | -1- | -2- | -3- | -4- | -5- | -6- | -7- // | o o - | - o o | - - | - - | - - | - - | o o | - - // | - x - | - x - | - x o o| - x - | - x - |o o x - | - x - | - x - // | - - | - - | - - | - o o | o o - | - - | - - | o o for (size_t i : { 1, 2, 3}) attackAvailability[i] = vstd::contains(occupiableHexes, neighbours[i]) && vstd::contains(occupiableHexes, neighbours[i].cloneInDirection(BattleHex::RIGHT, false)); for (size_t i : { 4, 5, 0}) attackAvailability[i] = vstd::contains(occupiableHexes, neighbours[i]) && vstd::contains(occupiableHexes, neighbours[i].cloneInDirection(BattleHex::LEFT, false)); attackAvailability[6] = vstd::contains(occupiableHexes, neighbours[0]) && vstd::contains(occupiableHexes, neighbours[1]); attackAvailability[7] = vstd::contains(occupiableHexes, neighbours[3]) && vstd::contains(occupiableHexes, neighbours[4]); } else { for (size_t i = 0; i < 6; ++i) attackAvailability[i] = vstd::contains(occupiableHexes, neighbours[i]); attackAvailability[6] = false; attackAvailability[7] = false; } // Zero available tiles to attack from if ( vstd::find(attackAvailability, true) == attackAvailability.end()) { logGlobal->error("Error: cannot find a hex to attack hex %d from!", myNumber); return BattleHex::NONE; } // For each valid direction, select position to test against std::array testPoint; for (size_t i = 0; i < 6; ++i) if (attackAvailability[i]) testPoint[i] = hexPositionAbsolute(neighbours[i]).center(); // For bottom/top directions select central point, but move it a bit away from true center to reduce zones allocated to them if (attackAvailability[6]) testPoint[6] = (hexPositionAbsolute(neighbours[0]).center() + hexPositionAbsolute(neighbours[1]).center()) / 2 + Point(0, -5); if (attackAvailability[7]) testPoint[7] = (hexPositionAbsolute(neighbours[3]).center() + hexPositionAbsolute(neighbours[4]).center()) / 2 + Point(0, 5); // Compute distance between tested position & cursor position and pick nearest std::array distance2; for (size_t i = 0; i < 8; ++i) if (attackAvailability[i]) distance2[i] = (testPoint[i].y - currentAttackOriginPoint.y)*(testPoint[i].y - currentAttackOriginPoint.y) + (testPoint[i].x - currentAttackOriginPoint.x)*(testPoint[i].x - currentAttackOriginPoint.x); size_t nearest = -1; for (size_t i = 0; i < 8; ++i) if (attackAvailability[i] && (nearest == -1 || distance2[i] < distance2[nearest]) ) nearest = i; assert(nearest != -1); return BattleHex::EDir(nearest); } BattleHex BattleFieldController::fromWhichHexAttack(BattleHex attackTarget) { BattleHex::EDir direction = selectAttackDirection(getHoveredHex()); const CStack * attacker = owner.stacksController->getActiveStack(); assert(direction != BattleHex::NONE); assert(attacker); if (!attacker->doubleWide()) { assert(direction != BattleHex::BOTTOM); assert(direction != BattleHex::TOP); return attackTarget.cloneInDirection(direction); } else { // We need to find position of right hex of double-hex creature (or left for defending side) // | TOP_LEFT |TOP_RIGHT | RIGHT |BOTTOM_RIGHT|BOTTOM_LEFT| LEFT | TOP |BOTTOM // | o o - | - o o | - - | - - | - - | - - | o o | - - // | - x - | - x - | - x o o| - x - | - x - |o o x - | - x - | - x - // | - - | - - | - - | - o o | o o - | - - | - - | o o switch (direction) { case BattleHex::TOP_LEFT: case BattleHex::LEFT: case BattleHex::BOTTOM_LEFT: { if ( attacker->unitSide() == BattleSide::ATTACKER ) return attackTarget.cloneInDirection(direction); else return attackTarget.cloneInDirection(direction).cloneInDirection(BattleHex::LEFT); } case BattleHex::TOP_RIGHT: case BattleHex::RIGHT: case BattleHex::BOTTOM_RIGHT: { if ( attacker->unitSide() == BattleSide::ATTACKER ) return attackTarget.cloneInDirection(direction).cloneInDirection(BattleHex::RIGHT); else return attackTarget.cloneInDirection(direction); } case BattleHex::TOP: { if ( attacker->unitSide() == BattleSide::ATTACKER ) return attackTarget.cloneInDirection(BattleHex::TOP_RIGHT); else return attackTarget.cloneInDirection(BattleHex::TOP_LEFT); } case BattleHex::BOTTOM: { if ( attacker->unitSide() == BattleSide::ATTACKER ) return attackTarget.cloneInDirection(BattleHex::BOTTOM_RIGHT); else return attackTarget.cloneInDirection(BattleHex::BOTTOM_LEFT); } default: assert(0); return BattleHex::INVALID; } } } bool BattleFieldController::isTileAttackable(const BattleHex & number) const { for (auto & elem : occupiableHexes) { if (BattleHex::mutualPosition(elem, number) != -1 || elem == number) return true; } return false; } void BattleFieldController::updateAccessibleHexes() { auto accessibility = owner.getBattle()->getAccesibility(); for(int i = 0; i < accessibility.size(); i++) stackCountOutsideHexes[i] = (accessibility[i] == EAccessibility::ACCESSIBLE || (accessibility[i] == EAccessibility::SIDE_COLUMN)); } bool BattleFieldController::stackCountOutsideHex(const BattleHex & number) const { return stackCountOutsideHexes[number]; } void BattleFieldController::showAll(Canvas & to) { show(to); } void BattleFieldController::tick(uint32_t msPassed) { updateAccessibleHexes(); owner.stacksController->tick(msPassed); owner.obstacleController->tick(msPassed); owner.projectilesController->tick(msPassed); } void BattleFieldController::show(Canvas & to) { CSDL_Ext::CClipRectGuard guard(to.getInternalSurface(), pos); renderBattlefield(to); if (isActive() && isGesturing() && getHoveredHex() != BattleHex::INVALID) { auto combatCursorIndex = CCS->curh->get(); if (combatCursorIndex) { auto combatImageIndex = static_cast(*combatCursorIndex); to.draw(attackCursors->getImage(combatImageIndex), hexPositionAbsolute(getHoveredHex()).center() - CCS->curh->getPivotOffsetCombat(combatImageIndex)); return; } auto spellCursorIndex = CCS->curh->get(); if (spellCursorIndex) { auto spellImageIndex = static_cast(*spellCursorIndex); to.draw(spellCursors->getImage(spellImageIndex), hexPositionAbsolute(getHoveredHex()).center() - CCS->curh->getPivotOffsetSpellcast()); return; } } } bool BattleFieldController::receiveEvent(const Point & position, int eventType) const { if (eventType == HOVER) return true; return CIntObject::receiveEvent(position, eventType); }