Initial commit

engines/sludge/cursors.cpp

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+/* 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