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https://github.com/vcmi/vcmi.git
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Renamed CCursorHandler -> CursorHandler
This commit is contained in:
Ivan Savenko
@@ -1,321 +0,0 @@
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/*
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* CCursorHandler.cpp, 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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#include "StdInc.h"
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#include "CCursorHandler.h"
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#include <SDL.h>
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#include "SDL_Extensions.h"
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#include "CGuiHandler.h"
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#include "../widgets/Images.h"
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#include "../CMT.h"
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void CCursorHandler::clearBuffer()
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{
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Uint32 fillColor = SDL_MapRGBA(buffer->format, 0, 0, 0, 0);
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CSDL_Ext::fillRect(buffer, nullptr, fillColor);
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}
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void CCursorHandler::updateBuffer(CIntObject * payload)
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{
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payload->moveTo(Point(0,0));
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payload->showAll(buffer);
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needUpdate = true;
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}
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void CCursorHandler::replaceBuffer(CIntObject * payload)
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{
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clearBuffer();
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updateBuffer(payload);
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}
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CCursorHandler::CCursorHandler()
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: needUpdate(true)
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, buffer(nullptr)
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, cursorLayer(nullptr)
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, frameTime(0.f)
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, showing(false)
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, pos(0,0)
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{
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cursorLayer = SDL_CreateTexture(mainRenderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, 40, 40);
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SDL_SetTextureBlendMode(cursorLayer, SDL_BLENDMODE_BLEND);
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type = Cursor::Type::DEFAULT;
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dndObject = nullptr;
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cursors =
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{
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std::make_unique<CAnimImage>("CRADVNTR", 0),
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std::make_unique<CAnimImage>("CRCOMBAT", 0),
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std::make_unique<CAnimImage>("CRDEFLT", 0),
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std::make_unique<CAnimImage>("CRSPELL", 0)
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};
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currentCursor = cursors.at(static_cast<size_t>(Cursor::Type::DEFAULT)).get();
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buffer = CSDL_Ext::newSurface(40,40);
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SDL_SetSurfaceBlendMode(buffer, SDL_BLENDMODE_NONE);
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SDL_ShowCursor(SDL_DISABLE);
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set(Cursor::Map::POINTER);
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}
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Point CCursorHandler::position() const
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{
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return pos;
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}
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void CCursorHandler::changeGraphic(Cursor::Type type, size_t index)
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{
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assert(dndObject == nullptr);
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if(type != this->type)
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{
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this->type = type;
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this->frame = index;
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currentCursor = cursors.at(static_cast<size_t>(type)).get();
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currentCursor->setFrame(index);
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}
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else if(index != this->frame)
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{
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this->frame = index;
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currentCursor->setFrame(index);
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}
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replaceBuffer(currentCursor);
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}
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void CCursorHandler::set(Cursor::Default index)
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{
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changeGraphic(Cursor::Type::DEFAULT, static_cast<size_t>(index));
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}
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void CCursorHandler::set(Cursor::Map index)
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{
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changeGraphic(Cursor::Type::ADVENTURE, static_cast<size_t>(index));
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}
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void CCursorHandler::set(Cursor::Combat index)
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{
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changeGraphic(Cursor::Type::COMBAT, static_cast<size_t>(index));
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}
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void CCursorHandler::set(Cursor::Spellcast index)
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{
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//Note: this is animated cursor, ignore specified frame and only change type
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changeGraphic(Cursor::Type::SPELLBOOK, frame);
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}
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void CCursorHandler::dragAndDropCursor(std::unique_ptr<CAnimImage> object)
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{
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dndObject = std::move(object);
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if(dndObject)
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replaceBuffer(dndObject.get());
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else
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replaceBuffer(currentCursor);
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}
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void CCursorHandler::cursorMove(const int & x, const int & y)
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{
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pos.x = x;
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pos.y = y;
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}
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Point CCursorHandler::getPivotOffsetDefault(size_t index)
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{
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return {0, 0};
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}
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Point CCursorHandler::getPivotOffsetMap(size_t index)
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{
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static const std::array<Point, 43> offsets = {{
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{ 0, 0}, // POINTER = 0,
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{ 0, 0}, // HOURGLASS = 1,
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{ 12, 10}, // HERO = 2,
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{ 12, 12}, // TOWN = 3,
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{ 15, 13}, // T1_MOVE = 4,
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{ 13, 13}, // T1_ATTACK = 5,
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{ 20, 20}, // T1_SAIL = 6,
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{ 13, 16}, // T1_DISEMBARK = 7,
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{ 8, 9}, // T1_EXCHANGE = 8,
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{ 14, 16}, // T1_VISIT = 9,
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{ 15, 13}, // T2_MOVE = 10,
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{ 13, 13}, // T2_ATTACK = 11,
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{ 20, 20}, // T2_SAIL = 12,
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{ 13, 16}, // T2_DISEMBARK = 13,
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{ 8, 9}, // T2_EXCHANGE = 14,
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{ 14, 16}, // T2_VISIT = 15,
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{ 15, 13}, // T3_MOVE = 16,
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{ 13, 13}, // T3_ATTACK = 17,
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{ 20, 20}, // T3_SAIL = 18,
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{ 13, 16}, // T3_DISEMBARK = 19,
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{ 8, 9}, // T3_EXCHANGE = 20,
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{ 14, 16}, // T3_VISIT = 21,
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{ 15, 13}, // T4_MOVE = 22,
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{ 13, 13}, // T4_ATTACK = 23,
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{ 20, 20}, // T4_SAIL = 24,
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{ 13, 16}, // T4_DISEMBARK = 25,
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{ 8, 9}, // T4_EXCHANGE = 26,
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{ 14, 16}, // T4_VISIT = 27,
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{ 20, 20}, // T1_SAIL_VISIT = 28,
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{ 20, 20}, // T2_SAIL_VISIT = 29,
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{ 20, 20}, // T3_SAIL_VISIT = 30,
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{ 20, 20}, // T4_SAIL_VISIT = 31,
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{ 6, 1}, // SCROLL_NORTH = 32,
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{ 16, 2}, // SCROLL_NORTHEAST = 33,
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{ 21, 6}, // SCROLL_EAST = 34,
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{ 16, 16}, // SCROLL_SOUTHEAST = 35,
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{ 6, 21}, // SCROLL_SOUTH = 36,
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{ 1, 16}, // SCROLL_SOUTHWEST = 37,
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{ 1, 5}, // SCROLL_WEST = 38,
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{ 2, 1}, // SCROLL_NORTHWEST = 39,
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{ 0, 0}, // POINTER_COPY = 40,
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{ 14, 16}, // TELEPORT = 41,
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{ 20, 20}, // SCUTTLE_BOAT = 42
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}};
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static_assert (offsets.size() == size_t(Cursor::Map::COUNT), "Invalid number of pivot offsets for cursor" );
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assert(index < offsets.size());
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return offsets[index];
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}
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Point CCursorHandler::getPivotOffsetCombat(size_t index)
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{
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static const std::array<Point, 20> offsets = {{
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{ 12, 12 }, // BLOCKED = 0,
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{ 10, 14 }, // MOVE = 1,
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{ 14, 14 }, // FLY = 2,
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{ 12, 12 }, // SHOOT = 3,
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{ 12, 12 }, // HERO = 4,
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{ 8, 12 }, // QUERY = 5,
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{ 0, 0 }, // POINTER = 6,
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{ 21, 0 }, // HIT_NORTHEAST = 7,
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{ 31, 5 }, // HIT_EAST = 8,
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{ 21, 21 }, // HIT_SOUTHEAST = 9,
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{ 0, 21 }, // HIT_SOUTHWEST = 10,
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{ 0, 5 }, // HIT_WEST = 11,
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{ 0, 0 }, // HIT_NORTHWEST = 12,
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{ 6, 0 }, // HIT_NORTH = 13,
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{ 6, 31 }, // HIT_SOUTH = 14,
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{ 14, 0 }, // SHOOT_PENALTY = 15,
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{ 12, 12 }, // SHOOT_CATAPULT = 16,
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{ 12, 12 }, // HEAL = 17,
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{ 12, 12 }, // SACRIFICE = 18,
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{ 14, 20 }, // TELEPORT = 19
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}};
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static_assert (offsets.size() == size_t(Cursor::Combat::COUNT), "Invalid number of pivot offsets for cursor" );
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assert(index < offsets.size());
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return offsets[index];
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}
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Point CCursorHandler::getPivotOffsetSpellcast()
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{
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return { 18, 28};
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}
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Point CCursorHandler::getPivotOffset()
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{
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switch (type) {
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case Cursor::Type::ADVENTURE: return getPivotOffsetMap(frame);
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case Cursor::Type::COMBAT: return getPivotOffsetCombat(frame);
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case Cursor::Type::DEFAULT: return getPivotOffsetDefault(frame);
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case Cursor::Type::SPELLBOOK: return getPivotOffsetSpellcast();
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};
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assert(0);
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return {0, 0};
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}
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void CCursorHandler::centerCursor()
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{
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pos.x = static_cast<int>((screen->w / 2.) - (currentCursor->pos.w / 2.));
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pos.y = static_cast<int>((screen->h / 2.) - (currentCursor->pos.h / 2.));
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SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
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SDL_WarpMouse(pos.x, pos.y);
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SDL_EventState(SDL_MOUSEMOTION, SDL_ENABLE);
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}
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void CCursorHandler::updateSpellcastCursor()
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{
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static const float frameDisplayDuration = 0.1f;
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frameTime += GH.mainFPSmng->getElapsedMilliseconds() / 1000.f;
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size_t newFrame = frame;
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while (frameTime > frameDisplayDuration)
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{
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frameTime -= frameDisplayDuration;
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newFrame++;
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}
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auto & animation = cursors.at(static_cast<size_t>(type));
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while (newFrame > animation->size())
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newFrame -= animation->size();
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changeGraphic(Cursor::Type::SPELLBOOK, newFrame);
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}
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void CCursorHandler::render()
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{
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if(!showing)
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return;
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if (type == Cursor::Type::SPELLBOOK)
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updateSpellcastCursor();
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//the must update texture in the main (renderer) thread, but changes to cursor type may come from other threads
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updateTexture();
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Point renderPos = pos;
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if(dndObject)
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renderPos -= dndObject->pos.dimensions() / 2;
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else
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renderPos -= getPivotOffset();
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SDL_Rect destRect;
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destRect.x = renderPos.x;
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destRect.y = renderPos.y;
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destRect.w = 40;
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destRect.h = 40;
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SDL_RenderCopy(mainRenderer, cursorLayer, nullptr, &destRect);
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}
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void CCursorHandler::updateTexture()
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{
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if(needUpdate)
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{
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SDL_UpdateTexture(cursorLayer, nullptr, buffer->pixels, buffer->pitch);
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needUpdate = false;
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}
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}
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CCursorHandler::~CCursorHandler()
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{
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if(buffer)
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SDL_FreeSurface(buffer);
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if(cursorLayer)
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SDL_DestroyTexture(cursorLayer);
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}
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