scummvm/engines/sludge/cursors.cpp
2021-12-26 18:48:43 +01:00

143 lines
4.0 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "common/system.h"
#include "sludge/cursors.h"
#include "sludge/event.h"
#include "sludge/graphics.h"
#include "sludge/freeze.h"
#include "sludge/newfatal.h"
#include "sludge/people.h"
#include "sludge/sludge.h"
#include "sludge/sludger.h"
namespace Sludge {
CursorManager::CursorManager(SludgeEngine *vm) {
_vm = vm;
init();
}
CursorManager::~CursorManager() {
kill();
}
void CursorManager::init() {
_mouseCursorAnim = new PersonaAnimation();
_mouseCursorFrameNum = 0;
_mouseCursorCountUp = 0;
}
void CursorManager::kill() {
if (_mouseCursorAnim) {
delete _mouseCursorAnim;
_mouseCursorAnim = nullptr;
}
_mouseCursorAnim = nullptr;
}
void CursorManager::pickAnimCursor(PersonaAnimation *pp) {
if (_mouseCursorAnim) {
delete _mouseCursorAnim;
_mouseCursorAnim = nullptr;
}
_mouseCursorAnim = pp;
_mouseCursorFrameNum = 0;
_mouseCursorCountUp = 0;
}
void CursorManager::displayCursor() {
if (_mouseCursorAnim && _mouseCursorAnim->numFrames) {
int spriteNum = _mouseCursorAnim->frames[_mouseCursorFrameNum].frameNum;
int flipMe = 0;
if (spriteNum < 0) {
spriteNum = -spriteNum;
flipMe = 1;
if (spriteNum >= _mouseCursorAnim->theSprites->bank.total)
spriteNum = 0;
} else {
if (spriteNum >= _mouseCursorAnim->theSprites->bank.total)
flipMe = 2;
}
if (flipMe != 2) {
if (flipMe) {
_vm->_gfxMan->flipFontSprite(
_vm->_evtMan->mouseX(), _vm->_evtMan->mouseY(),
_mouseCursorAnim->theSprites->bank.sprites[spriteNum],
_mouseCursorAnim->theSprites->bank.myPalette /* ( spritePalette&) NULL*/);
} else {
_vm->_gfxMan->fontSprite(
_vm->_evtMan->mouseX(), _vm->_evtMan->mouseY(),
_mouseCursorAnim->theSprites->bank.sprites[spriteNum],
_mouseCursorAnim->theSprites->bank.myPalette /* ( spritePalette&) NULL*/);
}
}
if (++_mouseCursorCountUp >= _mouseCursorAnim->frames[_mouseCursorFrameNum].howMany) {
_mouseCursorCountUp = 0;
_mouseCursorFrameNum++;
_mouseCursorFrameNum %= _mouseCursorAnim->numFrames;
}
}
}
void CursorManager::pasteCursor(int x, int y, PersonaAnimation *c) {
if (c->numFrames)
_vm->_gfxMan->pasteSpriteToBackDrop(x, y, c->theSprites->bank.sprites[c->frames[0].frameNum], c->theSprites->bank.myPalette);
}
void CursorManager::freeze(FrozenStuffStruct *frozenStuff) {
frozenStuff->mouseCursorAnim = _mouseCursorAnim;
frozenStuff->mouseCursorFrameNum = _mouseCursorFrameNum;
_mouseCursorAnim = new PersonaAnimation();
_mouseCursorFrameNum = 0;
}
void CursorManager::resotre(FrozenStuffStruct *frozenStuff) {
if (_mouseCursorAnim) {
delete _mouseCursorAnim;
_mouseCursorAnim = nullptr;
}
_mouseCursorAnim = frozenStuff->mouseCursorAnim;
_mouseCursorFrameNum = frozenStuff->mouseCursorFrameNum;
}
void CursorManager::saveCursor(Common::WriteStream *stream) {
_mouseCursorAnim->save(stream);
stream->writeUint16BE(_mouseCursorFrameNum);
}
bool CursorManager::loadCursor(Common::SeekableReadStream *stream) {
_mouseCursorAnim = new PersonaAnimation;
if (!checkNew(_mouseCursorAnim))
return false;
if (!_mouseCursorAnim->load(stream))
return false;
_mouseCursorFrameNum = stream->readUint16BE();
return true;
}
} // End of namespace Sludge