PRINCE: Even more prince.cpp refactoring. Inventory and pathfinding

1 files changed, 700 insertions, 0 deletions

diff --git a/engines/prince/inventory.cpp b/engines/prince/inventory.cpp
new file mode 100644
index 0000000000..509eaceb76
--- /dev/null
+++ b/engines/prince/inventory.cpp
@@ -0,0 +1,700 @@
+/* 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 2
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "prince/prince.h"
+
+#include "prince/graphics.h"
+#include "prince/hero.h"
+#include "prince/script.h"
+#include "prince/mhwanh.h"
+#include "prince/variatxt.h"
+#include "prince/option_text.h"
+#include "prince/font.h"
+
+namespace Prince {
+
+void PrinceEngine::addInv(int heroId, int item, bool addItemQuiet) {
+	Hero *hero = nullptr;
+	if (!heroId) {
+		hero = _mainHero;
+	} else if (heroId == 1) {
+		hero = _secondHero;
+	}
+	if (hero != nullptr) {
+		if (hero->_inventory.size() < kMaxItems) {
+			if (item != 0x7FFF) {
+				hero->_inventory.push_back(item);
+			}
+			if (!addItemQuiet) {
+				addInvObj();
+			}
+			_interpreter->setResult(0);
+		} else {
+			_interpreter->setResult(1);
+		}
+	}
+}
+
+void PrinceEngine::remInv(int heroId, int item) {
+	Hero *hero = nullptr;
+	if (!heroId) {
+		hero = _mainHero;
+	} else if (heroId == 1) {
+		hero = _secondHero;
+	}
+	if (hero != nullptr) {
+		for (uint i = 0; i < hero->_inventory.size(); i++) {
+			if (hero->_inventory[i] == item) {
+				hero->_inventory.remove_at(i);
+				_interpreter->setResult(0);
+				return;
+			}
+		}
+	}
+	_interpreter->setResult(1);
+}
+
+void PrinceEngine::clearInv(int heroId) {
+	switch (heroId) {
+	case 0:
+		_mainHero->_inventory.clear();
+		break;
+	case 1:
+		_secondHero->_inventory.clear();
+		break;
+	default:
+		error("clearInv() - wrong hero slot");
+		break;
+	}
+}
+
+void PrinceEngine::swapInv(int heroId) {
+	Common::Array<int> tempInv;
+	Hero *hero = nullptr;
+	if (!heroId) {
+		hero = _mainHero;
+	} else if (heroId == 1) {
+		hero = _secondHero;
+	}
+	if (hero != nullptr) {
+		for (uint i = 0; i < hero->_inventory.size(); i++) {
+			tempInv.push_back(hero->_inventory[i]);
+		}
+		hero->_inventory.clear();
+		for (uint i = 0; i < hero->_inventory2.size(); i++) {
+			hero->_inventory.push_back(hero->_inventory2[i]);
+		}
+		hero->_inventory2.clear();
+		for (uint i = 0; i < tempInv.size(); i++) {
+			hero->_inventory2.push_back(tempInv[i]);
+		}
+		tempInv.clear();
+	}
+}
+
+void PrinceEngine::addInvObj() {
+	changeCursor(0);
+	prepareInventoryToView();
+
+	_inventoryBackgroundRemember = true;
+	drawScreen();
+
+	Graphics::Surface *suitcase = _suitcaseBmp->getSurface();
+
+	if (!_flags->getFlagValue(Flags::CURSEBLINK)) {
+
+		loadSample(27, "PRZEDMIO.WAV");
+		playSample(27, 0);
+
+		_mst_shadow2 = 1;
+
+		while (_mst_shadow2 < 512) {
+			rememberScreenInv();
+			_graph->drawTransparentSurface(_graph->_screenForInventory, 0, 0, suitcase);
+			drawInvItems();
+			_graph->update(_graph->_screenForInventory);
+			_mst_shadow2 += 50;
+			Common::Event event;
+			Common::EventManager *eventMan = _system->getEventManager();
+			eventMan->pollEvent(event);
+			if (shouldQuit()) {
+				return;
+			}
+			pausePrinceEngine();
+		}
+		while (_mst_shadow2 > 256) {
+			rememberScreenInv();
+			_graph->drawTransparentSurface(_graph->_screenForInventory, 0, 0, suitcase);
+			drawInvItems();
+			_graph->update(_graph->_screenForInventory);
+			_mst_shadow2 -= 42;
+			Common::Event event;
+			Common::EventManager *eventMan = _system->getEventManager();
+			eventMan->pollEvent(event);
+			if (shouldQuit()) {
+				return;
+			}
+			pausePrinceEngine();
+		}
+	} else {
+		//CURSEBLINK:
+		for (int i = 0; i < 3; i++) {
+			_mst_shadow2 = 256;
+			while (_mst_shadow2 < 512) {
+				rememberScreenInv();
+				_graph->drawTransparentSurface(_graph->_screenForInventory, 0, 0, suitcase);
+				drawInvItems();
+				_graph->update(_graph->_screenForInventory);
+				_mst_shadow2 += 50;
+				Common::Event event;
+				Common::EventManager *eventMan = _system->getEventManager();
+				eventMan->pollEvent(event);
+				if (shouldQuit()) {
+					return;
+				}
+				pausePrinceEngine();
+			}
+			while (_mst_shadow2 > 256) {
+				rememberScreenInv();
+				_graph->drawTransparentSurface(_graph->_screenForInventory, 0, 0, suitcase);
+				drawInvItems();
+				_graph->update(_graph->_screenForInventory);
+				_mst_shadow2 -= 50;
+				Common::Event event;
+				Common::EventManager *eventMan = _system->getEventManager();
+				eventMan->pollEvent(event);
+				if (shouldQuit()) {
+					return;
+				}
+				pausePrinceEngine();
+			}
+		}
+	}
+	_mst_shadow2 = 0;
+	for (int i = 0; i < 20; i++) {
+		rememberScreenInv();
+		_graph->drawTransparentSurface(_graph->_screenForInventory, 0, 0, suitcase);
+		drawInvItems();
+		_graph->update(_graph->_screenForInventory);
+		Common::Event event;
+		Common::EventManager *eventMan = _system->getEventManager();
+		eventMan->pollEvent(event);
+		if (shouldQuit()) {
+			return;
+		}
+		pausePrinceEngine();
+	}
+}
+
+void PrinceEngine::rememberScreenInv() {
+	_graph->_screenForInventory->copyFrom(*_graph->_frontScreen);
+}
+
+void PrinceEngine::inventoryFlagChange(bool inventoryState) {
+	if (inventoryState) {
+		_showInventoryFlag = true;
+		_inventoryBackgroundRemember = true;
+	} else {
+		_showInventoryFlag = false;
+	}
+}
+
+void PrinceEngine::prepareInventoryToView() {
+	_invMobList.clear();
+	int invItem = _mainHero->_inventory.size();
+	_invLine =  invItem / 3;
+	if (invItem % 3) {
+		_invLine++;
+	}
+	if (_invLine < 4) {
+		_invLine = 4;
+	}
+	_maxInvW = (374 - 2 * _invLine) / _invLine;
+	_invLineW = _maxInvW - 2;
+
+	int currInvX = _invLineX;
+	int currInvY = _invLineY;
+
+	Common::MemoryReadStream stream(_invTxt, _invTxtSize);
+	byte c;
+
+	uint item = 0;
+	for (int i = 0; i < _invLines; i++) {
+		for (int j = 0; j < _invLine; j++) {
+			Mob tempMobItem;
+			if (item < _mainHero->_inventory.size()) {
+				int itemNr = _mainHero->_inventory[item];
+				tempMobItem._visible = 0;
+				tempMobItem._mask =  itemNr;
+				tempMobItem._rect = Common::Rect(currInvX + _picWindowX, currInvY, currInvX + _picWindowX + _invLineW  - 1, currInvY + _invLineH - 1);
+				tempMobItem._type = 0; // to work with checkMob()
+
+				tempMobItem._name = "";
+				tempMobItem._examText = "";
+				int txtOffset = READ_LE_UINT32(&_invTxt[itemNr * 8]);
+				int examTxtOffset = READ_LE_UINT32(&_invTxt[itemNr * 8 + 4]);
+
+				stream.seek(txtOffset);
+				while ((c = stream.readByte())) {
+					tempMobItem._name += c;
+				}
+
+				stream.seek(examTxtOffset);
+				while ((c = stream.readByte())) {
+					tempMobItem._examText += c;
+				}
+				_invMobList.push_back(tempMobItem);
+			}
+			currInvX += _invLineW + _invLineSkipX;
+			item++;
+		}
+		currInvX = _invLineX;
+		currInvY += _invLineSkipY + _invLineH;
+	}
+}
+
+void PrinceEngine::drawInvItems() {
+	int currInvX = _invLineX;
+	int currInvY = _invLineY;
+	uint item = 0;
+	for (int i = 0; i < _invLines; i++) {
+		for (int j = 0; j < _invLine; j++) {
+			if (item < _mainHero->_inventory.size()) {
+				int itemNr = _mainHero->_inventory[item];
+				_mst_shadow = 0;
+				if (_mst_shadow2) {
+					if (!_flags->getFlagValue(Flags::CURSEBLINK)) {
+						if (item + 1 == _mainHero->_inventory.size()) { // last item in inventory
+							_mst_shadow = 1;
+						}
+					} else if (itemNr == 1 || itemNr == 3 || itemNr == 4 || itemNr == 7) {
+						_mst_shadow = 1;
+					}
+				}
+
+				int drawX = currInvX;
+				int drawY = currInvY;
+				Graphics::Surface *itemSurface = nullptr;
+				if (itemNr != 68) {
+					itemSurface = _allInvList[itemNr].getSurface();
+					if (itemSurface->h < _maxInvH) {
+						drawY += (_maxInvH - itemSurface->h) / 2;
+					}
+				} else {
+					// candle item:
+					if (_candleCounter == 8) {
+						_candleCounter = 0;
+					}
+					itemNr = _candleCounter;
+					_candleCounter++;
+					itemNr &= 7;
+					itemNr += 71;
+					itemSurface = _allInvList[itemNr].getSurface();
+					drawY += _allInvList[itemNr]._y + (_maxInvH - 76) / 2 - 200;
+				}
+				if (itemSurface->w < _maxInvW) {
+					drawX += (_maxInvW - itemSurface->w) / 2;
+				}
+				if (!_mst_shadow) {
+					_graph->drawTransparentSurface(_graph->_screenForInventory, drawX, drawY, itemSurface);
+				} else {
+					_mst_shadow = _mst_shadow2;
+					_graph->drawTransparentWithBlendSurface(_graph->_screenForInventory, drawX, drawY, itemSurface);
+				}
+			}
+			currInvX += _invLineW + _invLineSkipX;
+			item++;
+		}
+		currInvX = _invLineX;
+		currInvY += _invLineSkipY + _invLineH;
+	}
+}
+
+void PrinceEngine::inventoryLeftMouseButton() {
+	if (!_mouseFlag) {
+		_textSlots[0]._time = 0;
+		_textSlots[0]._str = nullptr;
+		stopSample(28);
+	}
+
+	if (_optionsFlag == 1) {
+		if (_selectedMob != -1)  {
+			if (_optionEnabled < _invOptionsNumber) {
+				_optionsFlag = 0;
+			} else {
+				return;
+			}
+		} else {
+			error("PrinceEngine::inventoryLeftMouseButton() - optionsFlag = 1, selectedMob = 0");
+			if (_currentPointerNumber == 2) {
+				changeCursor(1);
+				_currentPointerNumber = 1;
+				_selectedMob = -1;
+				_optionsMob = -1;
+				return;
+			} else {
+				return;
+			}
+		}
+	} else {
+		if (_selectedMob != -1) {
+			if (_currentPointerNumber != 2) {
+				if (_invMobList[_selectedMob]._mask != 29) {
+					_optionEnabled = 0;
+				} else {
+					// map item
+					_optionEnabled = 1;
+				}
+			} else {
+				//use_item_on_item
+				int invObjUU = _script->scanMobEventsWithItem(_invMobList[_selectedMob]._mask, _script->_scriptInfo.invObjUU, _selectedItem);
+				if (invObjUU == -1) {
+					int textNr = 80011; // "I can't do it."
+					if (_selectedItem == 31 || _invMobList[_selectedMob]._mask == 31) {
+						textNr = 80020; // "Nothing is happening."
+					}
+					_interpreter->setCurrentString(textNr);
+					printAt(0, 216, (char *)_variaTxt->getString(textNr - 80000), kNormalWidth / 2, 100);
+					setVoice(0, 28, 1);
+					playSample(28, 0);
+					_selectedMob = -1;
+					_optionsMob = -1;
+					return;
+				} else {
+					_interpreter->storeNewPC(invObjUU);
+					_flags->setFlagValue(Flags::CURRMOB, _invMobList[_selectedMob]._mask);
+					_showInventoryFlag = false;
+				}
+			}
+		} else {
+			return;
+		}
+	}
+	//do_option
+	if (_optionEnabled == 0) {
+		int invObjExamEvent = _script->scanMobEvents(_invMobList[_selectedMob]._mask, _script->_scriptInfo.invObjExam);
+		if (invObjExamEvent == -1) {
+			// do_standard
+			printAt(0, 216, (char *)_invMobList[_selectedMob]._examText.c_str(), kNormalWidth / 2, _invExamY);
+			_interpreter->setCurrentString(_invMobList[_selectedMob]._mask + 70000);
+			setVoice(0, 28, 1);
+			playSample(28, 0);
+			// disableuseuse
+			changeCursor(0);
+			_currentPointerNumber = 1;
+		} else {
+			_interpreter->storeNewPC(invObjExamEvent);
+			_flags->setFlagValue(Flags::CURRMOB, _invMobList[_selectedMob]._mask);
+			_showInventoryFlag = false;
+		}
+	} else if (_optionEnabled == 1) {
+		// not_examine
+		int invObjUse = _script->scanMobEvents(_invMobList[_selectedMob]._mask, _script->_scriptInfo.invObjUse);
+		if (invObjUse == -1) {
+			// do_standard_use
+			_selectedMode = 0;
+			_selectedItem = _invMobList[_selectedMob]._mask;
+			makeInvCursor(_invMobList[_selectedMob]._mask);
+			_currentPointerNumber = 2;
+			changeCursor(2);
+		} else {
+			_interpreter->storeNewPC(invObjUse);
+			_flags->setFlagValue(Flags::CURRMOB, _invMobList[_selectedMob]._mask);
+			_showInventoryFlag = false;
+		}
+	} else if (_optionEnabled == 4) {
+		// do_standard_give
+		_selectedMode = 1;
+		_selectedItem = _invMobList[_selectedMob]._mask;
+		makeInvCursor(_invMobList[_selectedMob]._mask);
+		_currentPointerNumber = 2;
+		changeCursor(2);
+	} else {
+		// use_item_on_item
+		int invObjUU = _script->scanMobEventsWithItem(_invMobList[_selectedMob]._mask, _script->_scriptInfo.invObjUU, _selectedItem);
+		if (invObjUU == -1) {
+			int textNr = 80011; // "I can't do it."
+			if (_selectedItem == 31 || _invMobList[_selectedMob]._mask == 31) {
+				textNr = 80020; // "Nothing is happening."
+			}
+			_interpreter->setCurrentString(textNr);
+			printAt(0, 216, (char *)_variaTxt->getString(textNr - 80000), kNormalWidth / 2, 100);
+			setVoice(0, 28, 1);
+			playSample(28, 0);
+		} else {
+			_interpreter->storeNewPC(invObjUU);
+			_flags->setFlagValue(Flags::CURRMOB, _invMobList[_selectedMob]._mask);
+			_showInventoryFlag = false;
+		}
+	}
+	_selectedMob = -1;
+	_optionsMob = -1;
+}
+
+void PrinceEngine::inventoryRightMouseButton() {
+	if (_textSlots[0]._str == nullptr) {
+		enableOptions(false);
+	}
+}
+
+void PrinceEngine::enableOptions(bool checkType) {
+	if (_optionsFlag != 1) {
+		changeCursor(1);
+		_currentPointerNumber = 1;
+		if (_selectedMob != -1) {
+			if (checkType) {
+				if (_mobList[_selectedMob]._type & 0x100) {
+					return;
+				}
+			}
+			Common::Point mousePos = _system->getEventManager()->getMousePos();
+			int x1 = mousePos.x - _optionsWidth / 2;
+			int x2 = mousePos.x + _optionsWidth / 2;
+			if (x1 < 0) {
+				x1 = 0;
+				x2 = _optionsWidth;
+			} else if (x2 >= kNormalWidth) {
+				x1 = kNormalWidth - _optionsWidth;
+				x2 = kNormalWidth;
+			}
+			int y1 = mousePos.y - 10;
+			if (y1 < 0) {
+				y1 = 0;
+			}
+			if (y1 + _optionsHeight >= kNormalHeight) {
+				y1 = kNormalHeight - _optionsHeight;
+			}
+			_optionsMob = _selectedMob;
+			_optionsX = x1;
+			_optionsY = y1;
+			_optionsFlag = 1;
+		}
+	}
+}
+
+void PrinceEngine::checkOptions() {
+	if (_optionsFlag) {
+		Common::Rect optionsRect(_optionsX, _optionsY, _optionsX + _optionsWidth, _optionsY + _optionsHeight);
+		Common::Point mousePos = _system->getEventManager()->getMousePos();
+		if (!optionsRect.contains(mousePos)) {
+			_optionsFlag = 0;
+			_selectedMob = -1;
+			return;
+		}
+		_graph->drawAsShadowSurface(_graph->_frontScreen, _optionsX, _optionsY, _optionsPic, _graph->_shadowTable50);
+
+		_optionEnabled = -1;
+		int optionsYCord = mousePos.y - (_optionsY + 16);
+		if (optionsYCord >= 0) {
+			int selectedOptionNr = optionsYCord / _optionsStep;
+			if (selectedOptionNr < _optionsNumber) {
+				_optionEnabled = selectedOptionNr;
+			}
+		}
+		int optionsColor;
+		int textY = _optionsY + 16;
+		for (int i = 0; i < _optionsNumber; i++) {
+			if (i != _optionEnabled) {
+				optionsColor = _optionsColor1;
+			} else {
+				optionsColor = _optionsColor2;
+			}
+			Common::String optText;
+			switch(getLanguage()) {
+			case Common::PL_POL:
+				optText = optionsTextPL[i];
+				break;
+			case Common::DE_DEU:
+				optText = optionsTextDE[i];
+				break;
+			case Common::EN_ANY:
+				optText = optionsTextEN[i];
+				break;
+			default:
+				break;
+			};
+			uint16 textW = getTextWidth(optText.c_str());
+			uint16 textX = _optionsX + _optionsWidth / 2 - textW / 2;
+			_font->drawString(_graph->_frontScreen, optText, textX, textY, textW, optionsColor);
+			textY += _optionsStep;
+		}
+	}
+}
+
+void PrinceEngine::checkInvOptions() {
+	if (_optionsFlag) {
+		Common::Rect optionsRect(_optionsX, _optionsY, _optionsX + _invOptionsWidth, _optionsY + _invOptionsHeight);
+		Common::Point mousePos = _system->getEventManager()->getMousePos();
+		if (!optionsRect.contains(mousePos)) {
+			_optionsFlag = 0;
+			_selectedMob = -1;
+			return;
+		}
+		_graph->drawAsShadowSurface(_graph->_screenForInventory, _optionsX, _optionsY, _optionsPicInInventory, _graph->_shadowTable50);
+
+		_optionEnabled = -1;
+		int optionsYCord = mousePos.y - (_optionsY + 16);
+		if (optionsYCord >= 0) {
+			int selectedOptionNr = optionsYCord / _invOptionsStep;
+			if (selectedOptionNr < _invOptionsNumber) {
+				_optionEnabled = selectedOptionNr;
+			}
+		}
+		int optionsColor;
+		int textY = _optionsY + 16;
+		for (int i = 0; i < _invOptionsNumber; i++) {
+			if (i != _optionEnabled) {
+				optionsColor = _optionsColor1;
+			} else {
+				optionsColor = _optionsColor2;
+			}
+			Common::String invText;
+			switch(getLanguage()) {
+			case Common::PL_POL:
+				invText = invOptionsTextPL[i];
+				break;
+			case Common::DE_DEU:
+				invText = invOptionsTextDE[i];
+				break;
+			case Common::EN_ANY:
+				invText = invOptionsTextEN[i];
+				break;
+			default:
+				error("Unknown game language %d", getLanguage());
+				break;
+			};
+			uint16 textW = getTextWidth(invText.c_str());
+			uint16 textX = _optionsX + _invOptionsWidth / 2 - textW / 2;
+			_font->drawString(_graph->_screenForInventory, invText, textX, textY, _graph->_screenForInventory->w, optionsColor);
+			textY += _invOptionsStep;
+		}
+	}
+}
+
+void PrinceEngine::displayInventory() {
+
+	_mainHero->freeOldMove();
+	_secondHero->freeOldMove();
+
+	_interpreter->setFgOpcodePC(0);
+
+	stopAllSamples();
+
+	prepareInventoryToView();
+
+	while (!shouldQuit()) {
+
+		if (_textSlots[0]._str != nullptr) {
+			changeCursor(0);
+		} else {
+			changeCursor(_currentPointerNumber);
+
+			Common::Rect inventoryRect(_invX1, _invY1, _invX1 + _invWidth, _invY1 + _invHeight);
+			Common::Point mousePos = _system->getEventManager()->getMousePos();
+
+			if (!_invCurInside && inventoryRect.contains(mousePos)) {
+				_invCurInside = true;
+			}
+
+			if (_invCurInside && !inventoryRect.contains(mousePos)) {
+				inventoryFlagChange(false);
+				_invCurInside = false;
+				break;
+			}
+		}
+
+		rememberScreenInv();
+
+		Graphics::Surface *suitcase = _suitcaseBmp->getSurface();
+		_graph->drawTransparentSurface(_graph->_screenForInventory, 0, 0, suitcase);
+
+		drawInvItems();
+
+		showTexts(_graph->_screenForInventory);
+
+		if (!_optionsFlag && _textSlots[0]._str == nullptr) {
+			_selectedMob = checkMob(_graph->_screenForInventory, _invMobList, false);
+		}
+
+		checkInvOptions();
+
+		Common::Event event;
+		Common::EventManager *eventMan = _system->getEventManager();
+		while (eventMan->pollEvent(event)) {
+			switch (event.type) {
+			case Common::EVENT_KEYDOWN:
+				keyHandler(event);
+				break;
+			case Common::EVENT_LBUTTONDOWN:
+				inventoryLeftMouseButton();
+				break;
+			case Common::EVENT_RBUTTONDOWN:
+				inventoryRightMouseButton();
+				break;
+			default:
+				break;
+			}
+		}
+
+		if (!_showInventoryFlag) {
+			break;
+		}
+
+		if (shouldQuit())
+			return;
+
+		getDebugger()->onFrame();
+		_graph->update(_graph->_screenForInventory);
+		pausePrinceEngine();
+	}
+
+	if (_currentPointerNumber == 2) {
+		_flags->setFlagValue(Flags::SELITEM, _selectedItem);
+	} else {
+		_flags->setFlagValue(Flags::SELITEM, 0);
+	}
+}
+
+void PrinceEngine::openInventoryCheck() {
+	if (!_optionsFlag) {
+		if (_mouseFlag == 1 || _mouseFlag == 2) {
+			if (_mainHero->_visible) {
+				if (!_flags->getFlagValue(Flags::INVALLOWED)) {
+					// 29 - Basement, 50 - Map
+					if (_locationNr != 29 && _locationNr != 50) {
+						Common::Point mousePos = _system->getEventManager()->getMousePos();
+						if (mousePos.y < 4 && !_showInventoryFlag) {
+							_invCounter++;
+						} else {
+							_invCounter = 0;
+						}
+						if (_invCounter >= _invMaxCount) {
+							inventoryFlagChange(true);
+						}
+					}
+				}
+			}
+		}
+	}
+}
+
+} // End of namespace Prince