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-rw-r--r--engines/prince/walk.cpp1610
1 files changed, 1610 insertions, 0 deletions
diff --git a/engines/prince/walk.cpp b/engines/prince/walk.cpp
new file mode 100644
index 0000000000..0e81c36f3f
--- /dev/null
+++ b/engines/prince/walk.cpp
@@ -0,0 +1,1610 @@
+/* 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/hero.h"
+#include "prince/script.h"
+
+namespace Prince {
+
+void PrinceEngine::walkTo() {
+ if (_mainHero->_visible) {
+ _mainHero->freeHeroAnim();
+ _mainHero->freeOldMove();
+ _interpreter->storeNewPC(_script->_scriptInfo.usdCode);
+ int destX, destY;
+ if (_optionsMob != -1) {
+ destX = _mobList[_optionsMob]._examPosition.x;
+ destY = _mobList[_optionsMob]._examPosition.y;
+ _mainHero->_destDirection = _mobList[_optionsMob]._examDirection;
+ } else {
+ Common::Point mousePos = _system->getEventManager()->getMousePos();
+ destX = mousePos.x + _picWindowX;
+ destY = mousePos.y + _picWindowY;
+ _mainHero->_destDirection = 0;
+ }
+ _mainHero->_coords = makePath(kMainHero, _mainHero->_middleX, _mainHero->_middleY, destX, destY);
+ if (_mainHero->_coords != nullptr) {
+ _mainHero->_currCoords = _mainHero->_coords;
+ _mainHero->_dirTab = _directionTable;
+ _mainHero->_currDirTab = _directionTable;
+ _directionTable = nullptr;
+ _mainHero->_state = Hero::kHeroStateMove;
+ moveShandria();
+ }
+ }
+}
+
+void PrinceEngine::moveRunHero(int heroId, int x, int y, int dir, bool runHeroFlag) {
+ Hero *hero = nullptr;
+ if (!heroId) {
+ hero = _mainHero;
+ } else if (heroId == 1) {
+ hero = _secondHero;
+ }
+
+ if (hero != nullptr) {
+ if (dir) {
+ hero->_destDirection = dir;
+ }
+ if (x || y) {
+ hero->freeOldMove();
+ hero->_coords = makePath(heroId, hero->_middleX, hero->_middleY, x, y);
+ if (hero->_coords != nullptr) {
+ hero->_currCoords = hero->_coords;
+ hero->_dirTab = _directionTable;
+ hero->_currDirTab = _directionTable;
+ _directionTable = nullptr;
+ if (runHeroFlag) {
+ hero->_state = Hero::kHeroStateRun;
+ } else {
+ hero->_state = Hero::kHeroStateMove;
+ }
+ if (heroId == kMainHero && _mouseFlag) {
+ moveShandria();
+ }
+ }
+ } else {
+ hero->freeOldMove();
+ hero->_state = Hero::kHeroStateTurn;
+ }
+ hero->freeHeroAnim();
+ hero->_visible = 1;
+ }
+}
+
+// Modified version of Graphics::drawLine() to allow breaking the loop and return value
+int PrinceEngine::drawLine(int x0, int y0, int x1, int y1, int (*plotProc)(int, int, void *), void *data) {
+ // Bresenham's line algorithm, as described by Wikipedia
+ const bool steep = ABS(y1 - y0) > ABS(x1 - x0);
+
+ if (steep) {
+ SWAP(x0, y0);
+ SWAP(x1, y1);
+ }
+
+ const int delta_x = ABS(x1 - x0);
+ const int delta_y = ABS(y1 - y0);
+ const int delta_err = delta_y;
+ int x = x0;
+ int y = y0;
+ int err = 0;
+
+ const int x_step = (x0 < x1) ? 1 : -1;
+ const int y_step = (y0 < y1) ? 1 : -1;
+
+ int stopFlag = 0;
+ if (steep)
+ stopFlag = (*plotProc)(y, x, data);
+ else
+ stopFlag = (*plotProc)(x, y, data);
+
+ while (x != x1 && !stopFlag) {
+ x += x_step;
+ err += delta_err;
+ if (2 * err > delta_x) {
+ y += y_step;
+ err -= delta_x;
+ }
+ if (steep)
+ stopFlag = (*plotProc)(y, x, data);
+ else
+ stopFlag = (*plotProc)(x, y, data);
+ }
+ return stopFlag;
+}
+
+int PrinceEngine::getPixelAddr(byte *pathBitmap, int x, int y) {
+ int mask = 128 >> (x & 7);
+ byte value = pathBitmap[x / 8 + y * 80];
+ return (mask & value);
+}
+
+void PrinceEngine::findPoint(int x, int y) {
+ _fpX = x;
+ _fpY = y;
+
+ if (getPixelAddr(_roomPathBitmap, x, y)) {
+ return;
+ }
+
+ int fpL = x;
+ int fpU = y;
+ int fpR = x;
+ int fpD = y;
+
+ while (1) {
+ if (fpD != kMaxPicHeight) {
+ if (getPixelAddr(_roomPathBitmap, x, fpD)) {
+ _fpX = x;
+ _fpY = fpD;
+ break;
+ }
+ fpD++;
+ }
+ if (fpU) {
+ if (getPixelAddr(_roomPathBitmap, x, fpU)) {
+ _fpX = x;
+ _fpY = fpU;
+ break;
+ }
+ fpU--;
+ }
+ if (fpL) {
+ if (getPixelAddr(_roomPathBitmap, fpL, y)) {
+ _fpX = fpL;
+ _fpY = y;
+ break;
+ }
+ fpL--;
+ }
+ if (fpR != _sceneWidth) {
+ if (getPixelAddr(_roomPathBitmap, fpR, y)) {
+ _fpX = fpR;
+ _fpY = y;
+ break;
+ }
+ fpR++;
+ }
+ if (!fpU && (fpD == kMaxPicHeight)) {
+ if (!fpL && (fpR == _sceneWidth)) {
+ break;
+ }
+ }
+ }
+}
+
+Direction PrinceEngine::makeDirection(int x1, int y1, int x2, int y2) {
+ if (x1 != x2) {
+ if (y1 != y2) {
+ if (x1 > x2) {
+ if (y1 > y2) {
+ if (x1 - x2 >= y1 - y2) {
+ return kDirLU;
+ } else {
+ return kDirUL;
+ }
+ } else {
+ if (x1 - x2 >= y2 - y1) {
+ return kDirLD;
+ } else {
+ return kDirDL;
+ }
+ }
+ } else {
+ if (y1 > y2) {
+ if (x2 - x1 >= y1 - y2) {
+ return kDirRU;
+ } else {
+ return kDirUR;
+ }
+ } else {
+ if (x2 - x1 >= y2 - y1) {
+ return kDirRD;
+ } else {
+ return kDirDR;
+ }
+ }
+ }
+ } else {
+ if (x1 >= x2) {
+ return kDirL;
+ } else {
+ return kDirR;
+ }
+ }
+ } else {
+ if (y1 >= y2) {
+ return kDirU;
+ } else {
+ return kDirD;
+ }
+ }
+}
+
+void PrinceEngine::specialPlot(int x, int y) {
+ if (_coords < _coordsBufEnd) {
+ WRITE_LE_UINT16(_coords, x);
+ _coords += 2;
+ WRITE_LE_UINT16(_coords, y);
+ _coords += 2;
+ specialPlot2(x, y);
+ }
+}
+
+void PrinceEngine::specialPlot2(int x, int y) {
+ int mask = 128 >> (x & 7);
+ _roomPathBitmapTemp[x / 8 + y * 80] |= mask;
+}
+
+void PrinceEngine::specialPlotInside(int x, int y) {
+ if (_coords < _coordsBufEnd) {
+ WRITE_LE_UINT16(_coords, x);
+ _coords += 2;
+ WRITE_LE_UINT16(_coords, y);
+ _coords += 2;
+ }
+}
+
+int PrinceEngine::plotTraceLine(int x, int y, void *data) {
+ PrinceEngine *traceLine = (PrinceEngine *)data;
+ if (!traceLine->_traceLineFirstPointFlag) {
+ if (!traceLine->getPixelAddr(traceLine->_roomPathBitmapTemp, x, y)) {
+ if (traceLine->getPixelAddr(traceLine->_roomPathBitmap, x, y)) {
+ traceLine->specialPlotInside(x, y);
+ traceLine->_traceLineLen++;
+ return 0;
+ } else {
+ return -1;
+ }
+ } else {
+ return 1;
+ }
+ } else {
+ traceLine->_traceLineFirstPointFlag = false;
+ return 0;
+ }
+}
+
+int PrinceEngine::leftDownDir() {
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::leftDir() {
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::leftUpDir() {
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::rightDownDir() {
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::rightDir() {
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::rightUpDir() {
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::upLeftDir() {
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::upDir() {
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::upRightDir() {
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::downLeftDir() {
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::downDir() {
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::downRightDir() {
+ if (!checkRightDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDownDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkRightUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ if (!checkLeftUpDir()) {
+ specialPlot(_checkX, _checkY);
+ return 0;
+ }
+ return -1;
+}
+
+int PrinceEngine::cpe() {
+ if ((*(_checkBitmap - kPBW) & _checkMask)) {
+ if ((*(_checkBitmap + kPBW) & _checkMask)) {
+ int value;
+ switch (_checkMask) {
+ case 128:
+ value = READ_LE_UINT16(_checkBitmap - 1);
+ value &= 0x4001;
+ if (value != 0x4001) {
+ return 0;
+ }
+ break;
+ case 64:
+ value = *_checkBitmap;
+ value &= 0xA0;
+ if (value != 0xA0) {
+ return 0;
+ }
+ break;
+ case 32:
+ value = *_checkBitmap;
+ value &= 0x50;
+ if (value != 0x50) {
+ return 0;
+ }
+ break;
+ case 16:
+ value = *_checkBitmap;
+ value &= 0x28;
+ if (value != 0x28) {
+ return 0;
+ }
+ break;
+ case 8:
+ value = *_checkBitmap;
+ value &= 0x14;
+ if (value != 0x14) {
+ return 0;
+ }
+ break;
+ case 4:
+ value = *_checkBitmap;
+ value &= 0xA;
+ if (value != 0xA) {
+ return 0;
+ }
+ break;
+ case 2:
+ value = *_checkBitmap;
+ value &= 0x5;
+ if (value != 0x5) {
+ return 0;
+ }
+ break;
+ case 1:
+ value = READ_LE_UINT16(_checkBitmap);
+ value &= 0x8002;
+ if (value != 0x8002) {
+ return 0;
+ }
+ break;
+ default:
+ error("Wrong _checkMask value - cpe()");
+ break;
+ }
+ _checkX = _rembX;
+ _checkY = _rembY;
+ _checkBitmapTemp = _rembBitmapTemp;
+ _checkBitmap = _rembBitmap;
+ _checkMask = _rembMask;
+ return -1;
+ }
+ return 0;
+ }
+ return 0;
+}
+
+int PrinceEngine::checkLeftDownDir() {
+ if (_checkX && _checkY != (kMaxPicHeight / 2 - 1)) {
+ int tempMask = _checkMask;
+ if (tempMask != 128) {
+ tempMask <<= 1;
+ if ((*(_checkBitmap + kPBW) & tempMask)) {
+ if (!(*(_checkBitmapTemp + kPBW) & tempMask)) {
+ _checkBitmap += kPBW;
+ _checkBitmapTemp += kPBW;
+ _checkMask = tempMask;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ } else {
+ if ((*(_checkBitmap + kPBW - 1) & 1)) {
+ if (!(*(_checkBitmapTemp + kPBW - 1) & 1)) {
+ _checkBitmap += (kPBW - 1);
+ _checkBitmapTemp += (kPBW - 1);
+ _checkMask = 1;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ }
+ _checkX--;
+ _checkY++;
+ return cpe();
+ } else {
+ return -1;
+ }
+}
+
+int PrinceEngine::checkLeftDir() {
+ if (_checkX) {
+ int tempMask = _checkMask;
+ if (tempMask != 128) {
+ tempMask <<= 1;
+ if ((*(_checkBitmap) & tempMask)) {
+ if (!(*(_checkBitmapTemp) & tempMask)) {
+ _checkMask = tempMask;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ } else {
+ if ((*(_checkBitmap - 1) & 1)) {
+ if (!(*(_checkBitmapTemp - 1) & 1)) {
+ _checkBitmap--;
+ _checkBitmapTemp--;
+ _checkMask = 1;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ }
+ _checkX--;
+ return cpe();
+ } else {
+ return -1;
+ }
+}
+
+int PrinceEngine::checkDownDir() {
+ if (_checkY != (kMaxPicHeight / 2 - 1)) {
+ if ((*(_checkBitmap + kPBW) & _checkMask)) {
+ if (!(*(_checkBitmapTemp + kPBW) & _checkMask)) {
+ _checkBitmap += kPBW;
+ _checkBitmapTemp += kPBW;
+ _checkY++;
+ return cpe();
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ } else {
+ return -1;
+ }
+}
+
+int PrinceEngine::checkUpDir() {
+ if (_checkY) {
+ if ((*(_checkBitmap - kPBW) & _checkMask)) {
+ if (!(*(_checkBitmapTemp - kPBW) & _checkMask)) {
+ _checkBitmap -= kPBW;
+ _checkBitmapTemp -= kPBW;
+ _checkY--;
+ return cpe();
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ } else {
+ return -1;
+ }
+}
+
+int PrinceEngine::checkRightDir() {
+ if (_checkX != (kMaxPicWidth / 2 - 1)) {
+ int tempMask = _checkMask;
+ if (tempMask != 1) {
+ tempMask >>= 1;
+ if ((*(_checkBitmap) & tempMask)) {
+ if (!(*(_checkBitmapTemp) & tempMask)) {
+ _checkMask = tempMask;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ } else {
+ if ((*(_checkBitmap + 1) & 128)) {
+ if (!(*(_checkBitmapTemp + 1) & 128)) {
+ _checkBitmap++;
+ _checkBitmapTemp++;
+ _checkMask = 128;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ }
+ _checkX++;
+ return cpe();
+ } else {
+ return -1;
+ }
+}
+
+int PrinceEngine::checkLeftUpDir() {
+ if (_checkX && _checkY) {
+ int tempMask = _checkMask;
+ if (tempMask != 128) {
+ tempMask <<= 1;
+ if ((*(_checkBitmap - kPBW) & tempMask)) {
+ if (!(*(_checkBitmapTemp - kPBW) & tempMask)) {
+ _checkBitmap -= kPBW;
+ _checkBitmapTemp -= kPBW;
+ _checkMask = tempMask;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ } else {
+ if ((*(_checkBitmap - (kPBW + 1)) & 1)) {
+ if (!(*(_checkBitmapTemp - (kPBW + 1)) & 1)) {
+ _checkBitmap -= (kPBW + 1);
+ _checkBitmapTemp -= (kPBW + 1);
+ _checkMask = 1;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ }
+ _checkX--;
+ _checkY--;
+ return cpe();
+ } else {
+ return -1;
+ }
+}
+
+int PrinceEngine::checkRightDownDir() {
+ if (_checkX != (kMaxPicWidth / 2 - 1) && _checkY != (kMaxPicHeight / 2 - 1)) {
+ int tempMask = _checkMask;
+ if (tempMask != 1) {
+ tempMask >>= 1;
+ if ((*(_checkBitmap + kPBW) & tempMask)) {
+ if (!(*(_checkBitmapTemp + kPBW) & tempMask)) {
+ _checkBitmap += kPBW;
+ _checkBitmapTemp += kPBW;
+ _checkMask = tempMask;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ } else {
+ if ((*(_checkBitmap + kPBW + 1) & 128)) {
+ if (!(*(_checkBitmapTemp + kPBW + 1) & 128)) {
+ _checkBitmap += kPBW + 1;
+ _checkBitmapTemp += kPBW + 1;
+ _checkMask = 128;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ }
+ _checkX++;
+ _checkY++;
+ return cpe();
+ } else {
+ return -1;
+ }
+}
+
+int PrinceEngine::checkRightUpDir() {
+ if (_checkX != (kMaxPicWidth / 2 - 1) && _checkY) {
+ int tempMask = _checkMask;
+ if (tempMask != 1) {
+ tempMask >>= 1;
+ if ((*(_checkBitmap - kPBW) & tempMask)) {
+ if (!(*(_checkBitmapTemp - kPBW) & tempMask)) {
+ _checkBitmap -= kPBW;
+ _checkBitmapTemp -= kPBW;
+ _checkMask = tempMask;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ } else {
+ if ((*(_checkBitmap - kPBW + 1) & 128)) {
+ if (!(*(_checkBitmapTemp - kPBW + 1) & 128)) {
+ _checkBitmap -= (kPBW - 1);
+ _checkBitmapTemp -= (kPBW - 1);
+ _checkMask = 128;
+ } else {
+ return 1;
+ }
+ } else {
+ return -1;
+ }
+ }
+ _checkX++;
+ _checkY--;
+ return cpe();
+ } else {
+ return -1;
+ }
+}
+
+bool PrinceEngine::tracePath(int x1, int y1, int x2, int y2) {
+ for (uint i = 0; i < kPathBitmapLen; i++) {
+ _roomPathBitmapTemp[i] = 0;
+ }
+ if (x1 != x2 || y1 != y2) {
+ if (getPixelAddr(_roomPathBitmap, x1, y1)) {
+ if (getPixelAddr(_roomPathBitmap, x2, y2)) {
+ _coords = _coordsBuf;
+ specialPlot(x1, y1);
+
+ int x = x1;
+ int y = y1;
+
+ while (1) {
+ int btx = x;
+ int bty = y;
+ byte *bcad = _coords;
+
+ _traceLineLen = 0;
+ _traceLineFirstPointFlag = true;
+ int drawLineFlag = drawLine(x, y, x2, y2, &this->plotTraceLine, this);
+
+ if (!drawLineFlag) {
+ return true;
+ } else if (drawLineFlag == -1 && _traceLineLen >= 2) {
+ byte *tempCorrds = bcad;
+ while (tempCorrds != _coords) {
+ x = READ_LE_UINT16(tempCorrds);
+ y = READ_LE_UINT16(tempCorrds + 2);
+ tempCorrds += 4;
+ specialPlot2(x, y);
+ }
+ } else {
+ _coords = bcad;
+ x = btx;
+ y = bty;
+ }
+
+ Direction dir = makeDirection(x, y, x2, y2);
+
+ _rembBitmapTemp = &_roomPathBitmapTemp[x / 8 + y * 80];
+ _rembBitmap = &_roomPathBitmap[x / 8 + y * 80];
+ _rembMask = 128 >> (x & 7);
+ _rembX = x;
+ _rembY = y;
+
+ _checkBitmapTemp = _rembBitmapTemp;
+ _checkBitmap = _rembBitmap;
+ _checkMask = _rembMask;
+ _checkX = _rembX;
+ _checkY = _rembY;
+
+ int result;
+ switch (dir) {
+ case kDirLD:
+ result = leftDownDir();
+ break;
+ case kDirL:
+ result = leftDir();
+ break;
+ case kDirLU:
+ result = leftUpDir();
+ break;
+ case kDirRD:
+ result = rightDownDir();
+ break;
+ case kDirR:
+ result = rightDir();
+ break;
+ case kDirRU:
+ result = rightUpDir();
+ break;
+ case kDirUL:
+ result = upLeftDir();
+ break;
+ case kDirU:
+ result = upDir();
+ break;
+ case kDirUR:
+ result = upRightDir();
+ break;
+ case kDirDL:
+ result = downLeftDir();
+ break;
+ case kDirD:
+ result = downDir();
+ break;
+ case kDirDR:
+ result = downRightDir();
+ break;
+ default:
+ result = -1;
+ error("tracePath: wrong direction %d", dir);
+ break;
+ }
+
+ if (result) {
+ byte *tempCoords = _coords;
+ tempCoords -= 4;
+ if (tempCoords > _coordsBuf) {
+ int tempX = READ_LE_UINT16(tempCoords);
+ int tempY = READ_LE_UINT16(tempCoords + 2);
+ if (_checkX == tempX && _checkY == tempY) {
+ _coords = tempCoords;
+ }
+ x = READ_LE_UINT16(tempCoords);
+ y = READ_LE_UINT16(tempCoords + 2);
+ } else {
+ return false;
+ }
+ } else {
+ x = _checkX;
+ y = _checkY;
+ }
+ }
+ return true;
+ } else {
+ error("tracePath: wrong destination point");
+ }
+ } else {
+ error("tracePath: wrong start point");
+ }
+ } else {
+ error("tracePath: same point");
+ }
+}
+
+void PrinceEngine::specialPlotInside2(int x, int y) {
+ WRITE_LE_UINT16(_coords2, x);
+ _coords2 += 2;
+ WRITE_LE_UINT16(_coords2, y);
+ _coords2 += 2;
+}
+
+int PrinceEngine::plotTracePoint(int x, int y, void *data) {
+ PrinceEngine *tracePoint = (PrinceEngine *)data;
+ if (!tracePoint->_tracePointFirstPointFlag) {
+ if (tracePoint->getPixelAddr(tracePoint->_roomPathBitmap, x, y)) {
+ tracePoint->specialPlotInside2(x, y);
+ return 0;
+ } else {
+ return -1;
+ }
+ } else {
+ tracePoint->_tracePointFirstPointFlag = false;
+ return 0;
+ }
+}
+
+void PrinceEngine::approxPath() {
+ byte *oldCoords;
+ _coords2 = _coordsBuf2;
+ byte *tempCoordsBuf = _coordsBuf; // first point on path
+ byte *tempCoords = _coords;
+ if (tempCoordsBuf != tempCoords) {
+ tempCoords -= 4; // last point on path
+ while (tempCoordsBuf != tempCoords) {
+ int x1 = READ_LE_UINT16(tempCoords);
+ int y1 = READ_LE_UINT16(tempCoords + 2);
+ int x2 = READ_LE_UINT16(tempCoordsBuf);
+ int y2 = READ_LE_UINT16(tempCoordsBuf + 2);
+ tempCoordsBuf += 4;
+ //TracePoint
+ oldCoords = _coords2;
+ if (_coords2 == _coordsBuf2) {
+ WRITE_LE_UINT16(_coords2, x1);
+ WRITE_LE_UINT16(_coords2 + 2, y1);
+ _coords2 += 4;
+ } else {
+ int testX = READ_LE_UINT16(_coords2 - 4);
+ int testY = READ_LE_UINT16(_coords2 - 2);
+ if (testX != x1 || testY != y1) {
+ WRITE_LE_UINT16(_coords2, x1);
+ WRITE_LE_UINT16(_coords2 + 2, y1);
+ _coords2 += 4;
+ }
+ }
+ _tracePointFirstPointFlag = true;
+ bool drawLineFlag = drawLine(x1, y1, x2, y2, &this->plotTracePoint, this);
+ if (!drawLineFlag) {
+ tempCoords = tempCoordsBuf - 4;
+ tempCoordsBuf = _coordsBuf;
+ } else {
+ _coords2 = oldCoords;
+ }
+ }
+ }
+}
+
+void PrinceEngine::freeDirectionTable() {
+ if (_directionTable != nullptr) {
+ free(_directionTable);
+ _directionTable = nullptr;
+ }
+}
+
+int PrinceEngine::scanDirectionsFindNext(byte *tempCoordsBuf, int xDiff, int yDiff) {
+
+ int tempX, tempY, direction;
+
+ tempX = Hero::kHeroDirLeft;
+ if (xDiff < 0) {
+ tempX = Hero::kHeroDirRight;
+ }
+
+ tempY = Hero::kHeroDirUp;
+ if (yDiff < 0) {
+ tempY = Hero::kHeroDirDown;
+ }
+
+ while (1) {
+ int againPointX1 = READ_LE_UINT16(tempCoordsBuf);
+ int againPointY1 = READ_LE_UINT16(tempCoordsBuf + 2);
+ tempCoordsBuf += 4;
+
+ if (tempCoordsBuf == _coords) {
+ direction = tempX;
+ break;
+ }
+
+ int dX = againPointX1 - READ_LE_UINT16(tempCoordsBuf);
+ int dY = againPointY1 - READ_LE_UINT16(tempCoordsBuf + 2);
+
+ if (dX != xDiff) {
+ direction = tempY;
+ break;
+ }
+
+ if (dY != yDiff) {
+ direction = tempX;
+ break;
+ }
+ }
+ return direction;
+}
+
+void PrinceEngine::scanDirections() {
+ freeDirectionTable();
+ byte *tempCoordsBuf = _coordsBuf;
+ if (tempCoordsBuf != _coords) {
+ int size = (_coords - tempCoordsBuf) / 4 + 1; // number of coord points plus one for end marker
+ _directionTable = (byte *)malloc(size);
+ byte *tempDirTab = _directionTable;
+ int direction = -1;
+ int lastDirection = -1;
+
+ while (1) {
+ int x1 = READ_LE_UINT16(tempCoordsBuf);
+ int y1 = READ_LE_UINT16(tempCoordsBuf + 2);
+ tempCoordsBuf += 4;
+ if (tempCoordsBuf == _coords) {
+ break;
+ }
+ int x2 = READ_LE_UINT16(tempCoordsBuf);
+ int y2 = READ_LE_UINT16(tempCoordsBuf + 2);
+
+ int xDiff = x1 - x2;
+ int yDiff = y1 - y2;
+
+ if (xDiff) {
+ if (yDiff) {
+ if (lastDirection != -1) {
+ direction = lastDirection;
+ if (direction == Hero::kHeroDirLeft) {
+ if (xDiff < 0) {
+ direction = scanDirectionsFindNext(tempCoordsBuf, xDiff, yDiff);
+ }
+ } else if (direction == Hero::kHeroDirRight) {
+ if (xDiff >= 0) {
+ direction = scanDirectionsFindNext(tempCoordsBuf, xDiff, yDiff);
+ }
+ } else if (direction == Hero::kHeroDirUp) {
+ if (yDiff < 0) {
+ direction = scanDirectionsFindNext(tempCoordsBuf, xDiff, yDiff);
+ }
+ } else {
+ if (yDiff >= 0) {
+ direction = scanDirectionsFindNext(tempCoordsBuf, xDiff, yDiff);
+ }
+ }
+ } else {
+ direction = scanDirectionsFindNext(tempCoordsBuf, xDiff, yDiff);
+ }
+ } else {
+ direction = Hero::kHeroDirLeft;
+ if (xDiff < 0) {
+ direction = Hero::kHeroDirRight;
+ }
+ }
+ } else {
+ if (yDiff) {
+ direction = Hero::kHeroDirUp;
+ if (yDiff < 0) {
+ direction = Hero::kHeroDirDown;
+ }
+ } else {
+ direction = lastDirection;
+ }
+ }
+ lastDirection = direction;
+ *tempDirTab = direction;
+ tempDirTab++;
+ }
+ *tempDirTab = *(tempDirTab - 1);
+ tempDirTab++;
+ *tempDirTab = 0;
+ }
+}
+
+void PrinceEngine::moveShandria() {
+ int shanLen1 = _shanLen;
+ if (_flags->getFlagValue(Flags::SHANDOG)) {
+ _secondHero->freeHeroAnim();
+ _secondHero->freeOldMove();
+ byte *shanCoords = _mainHero->_currCoords + shanLen1 * 4 - 4;
+ int shanX = READ_LE_UINT16(shanCoords - 4);
+ int shanY = READ_LE_UINT16(shanCoords - 2);
+ int xDiff = shanX - _secondHero->_middleX;
+ if (xDiff < 0) {
+ xDiff *= -1;
+ }
+ int yDiff = shanY - _secondHero->_middleY;
+ if (yDiff < 0) {
+ yDiff *= -1;
+ }
+ shanCoords -= 4;
+ if (shanCoords != _mainHero->_currCoords) {
+ yDiff *= 1.5;
+ int shanDis = xDiff * xDiff + yDiff * yDiff;
+ if (shanDis >= kMinDistance) {
+ while (1) {
+ shanCoords -= 4;
+ if (shanCoords == _mainHero->_currCoords) {
+ break;
+ }
+ int x = READ_LE_UINT16(shanCoords);
+ int y = READ_LE_UINT16(shanCoords + 2);
+ int pointDiffX = x - shanX;
+ if (pointDiffX < 0) {
+ pointDiffX *= -1;
+ }
+ int pointDiffY = y - shanY;
+ if (pointDiffY < 0) {
+ pointDiffY *= -1;
+ }
+ pointDiffY *= 1.5;
+ int distance = pointDiffX * pointDiffX + pointDiffY * pointDiffY;
+ if (distance >= kMinDistance) {
+ break;
+ }
+ }
+ int pathSizeDiff = (shanCoords - _mainHero->_currCoords) / 4;
+ int destDir = *(_mainHero->_currDirTab + pathSizeDiff);
+ _secondHero->_destDirection = destDir;
+ int destX = READ_LE_UINT16(shanCoords);
+ int destY = READ_LE_UINT16(shanCoords + 2);
+ _secondHero->_coords = makePath(kSecondHero, _secondHero->_middleX, _secondHero->_middleY, destX, destY);
+ if (_secondHero->_coords != nullptr) {
+ _secondHero->_currCoords = _secondHero->_coords;
+ int delay = shanLen1 - _shanLen;
+ if (delay < 6) {
+ delay = 6;
+ }
+ _secondHero->_moveDelay = delay / 2;
+ _secondHero->_state = Hero::kHeroStateDelayMove;
+ _secondHero->_dirTab = _directionTable;
+ _secondHero->_currDirTab = _directionTable;
+ _directionTable = nullptr;
+ }
+ }
+ }
+ }
+}
+
+byte *PrinceEngine::makePath(int heroId, int currX, int currY, int destX, int destY) {
+ int realDestX = destX;
+ int realDestY = destY;
+ _flags->setFlagValue(Flags::MOVEDESTX, destX);
+ _flags->setFlagValue(Flags::MOVEDESTY, destY);
+
+ int x1 = currX / 2;
+ int y1 = currY / 2;
+ int x2 = destX / 2;
+ int y2 = destY / 2;
+
+ if ((x1 != x2) || (y1 != y2)) {
+ findPoint(x1, y1);
+ if (!getPixelAddr(_roomPathBitmap, _fpX, _fpY)) {
+ return nullptr;
+ }
+ if ((x1 != _fpX) || (y1 != _fpY)) {
+ x1 = _fpX;
+ y1 = _fpY;
+ }
+ findPoint(x2, y2);
+ if (!getPixelAddr(_roomPathBitmap, _fpX, _fpY)) {
+ return nullptr;
+ }
+ if ((x2 != _fpX) || (y2 != _fpY)) {
+ x2 = _fpX;
+ y2 = _fpY;
+ if (!_flags->getFlagValue(Flags::EXACTMOVE)) {
+ realDestX = x2 * 2;
+ realDestY = y2 * 2;
+ _flags->setFlagValue(Flags::MOVEDESTX, realDestX);
+ _flags->setFlagValue(Flags::MOVEDESTY, realDestY);
+ } else {
+ return nullptr;
+ }
+ }
+
+ if ((x1 == x2) && (y1 == y2)) {
+ if (!heroId) {
+ _mainHero->freeOldMove();
+ _mainHero->_state = Hero::kHeroStateTurn;
+ } else if (heroId == 1) {
+ _secondHero->freeOldMove();
+ _secondHero->_state = Hero::kHeroStateTurn;
+ }
+ return nullptr;
+ }
+
+ int pathLen1 = 0;
+ int pathLen2 = 0;
+ int stX = x1;
+ int stY = y1;
+ int sizeCoords2 = 0;
+
+ if (tracePath(x1, y1, x2, y2)) {
+ allocCoords2();
+ approxPath();
+ sizeCoords2 = _coords2 - _coordsBuf2;
+ for (int i = 0; i < sizeCoords2; i++) {
+ _coordsBuf[i] = _coordsBuf2[i];
+ }
+ _coords = _coordsBuf + sizeCoords2;
+ approxPath();
+ _coordsBuf3 = _coordsBuf2;
+ _coordsBuf2 = nullptr;
+ _coords3 = _coords2;
+ _coords2 = nullptr;
+ pathLen1 = _coords3 - _coordsBuf3;
+ }
+ if (tracePath(x2, y2, x1, y1)) {
+ allocCoords2();
+ approxPath();
+ sizeCoords2 = _coords2 - _coordsBuf2;
+ for (int i = 0; i < sizeCoords2; i++) {
+ _coordsBuf[i] = _coordsBuf2[i];
+ }
+ _coords = _coordsBuf + sizeCoords2;
+ approxPath();
+ pathLen2 = _coords2 - _coordsBuf2;
+ }
+
+ byte *chosenCoordsBuf = _coordsBuf2;
+ byte *choosenCoords = _coords2;
+ int choosenLength = pathLen1;
+ if (pathLen1 < pathLen2) {
+ chosenCoordsBuf = _coordsBuf3;
+ choosenCoords = _coords3;
+ choosenLength = pathLen2;
+ }
+
+ if (choosenLength) {
+ if (chosenCoordsBuf != nullptr) {
+ int tempXBegin = READ_LE_UINT16(chosenCoordsBuf);
+ int tempYBegin = READ_LE_UINT16(chosenCoordsBuf + 2);
+ if (stX != tempXBegin || stY != tempYBegin) {
+ SWAP(chosenCoordsBuf, choosenCoords);
+ chosenCoordsBuf -= 4;
+ byte *tempCoordsBuf = _coordsBuf;
+ while (1) {
+ int cord = READ_LE_UINT32(chosenCoordsBuf);
+ WRITE_LE_UINT32(tempCoordsBuf, cord);
+ tempCoordsBuf += 4;
+ if (chosenCoordsBuf == choosenCoords) {
+ break;
+ }
+ chosenCoordsBuf -= 4;
+ }
+ _coords = tempCoordsBuf;
+ } else {
+ int sizeChoosen = choosenCoords - chosenCoordsBuf;
+ for (int i = 0; i < sizeChoosen; i++) {
+ _coordsBuf[i] = chosenCoordsBuf[i];
+ }
+ _coords = _coordsBuf + sizeChoosen;
+ }
+ WRITE_LE_UINT32(_coords, 0xFFFFFFFF);
+ freeCoords2();
+ freeCoords3();
+ scanDirections();
+
+ byte *tempCoordsBuf = _coordsBuf;
+ byte *tempCoords = _coords;
+ byte *newCoords;
+ if (tempCoordsBuf != tempCoords) {
+ int normCoordsSize = _coords - _coordsBuf + 4;
+ newCoords = (byte *)malloc(normCoordsSize);
+ byte *newCoordsBegin = newCoords;
+ while (tempCoordsBuf != tempCoords) {
+ int newValueX = READ_LE_UINT16(tempCoordsBuf);
+ WRITE_LE_UINT16(newCoords, newValueX * 2);
+ newCoords += 2;
+ int newValueY = READ_LE_UINT16(tempCoordsBuf + 2);
+ WRITE_LE_UINT16(newCoords, newValueY * 2);
+ newCoords += 2;
+ tempCoordsBuf += 4;
+ }
+ WRITE_LE_UINT16(newCoords - 4, realDestX);
+ WRITE_LE_UINT16(newCoords - 2, realDestY);
+ WRITE_LE_UINT32(newCoords, 0xFFFFFFFF);
+ newCoords += 4;
+ _shanLen = (newCoords - newCoordsBegin);
+ _shanLen /= 4;
+ return newCoordsBegin;
+ }
+ }
+ }
+ _coords = _coordsBuf;
+ freeCoords2();
+ freeCoords3();
+ return nullptr;
+ } else {
+ if (!heroId) {
+ _mainHero->freeOldMove();
+ _mainHero->_state = Hero::kHeroStateTurn;
+ } else if (heroId == 1) {
+ _secondHero->freeOldMove();
+ _secondHero->_state = Hero::kHeroStateTurn;
+ }
+ return nullptr;
+ }
+}
+
+void PrinceEngine::allocCoords2() {
+ if (_coordsBuf2 == nullptr) {
+ _coordsBuf2 = (byte *)malloc(kTracePts * 4);
+ _coords2 = _coordsBuf2;
+ }
+}
+
+void PrinceEngine::freeCoords2() {
+ if (_coordsBuf2 != nullptr) {
+ free(_coordsBuf2);
+ _coordsBuf2 = nullptr;
+ _coords2 = nullptr;
+ }
+}
+
+void PrinceEngine::freeCoords3() {
+ if (_coordsBuf3 != nullptr) {
+ free(_coordsBuf3);
+ _coordsBuf3 = nullptr;
+ _coords3 = nullptr;
+ }
+}
+
+} // End of namespace Prince