1 files changed, 325 insertions, 0 deletions
diff --git a/engines/pegasus/hotspot.cpp b/engines/pegasus/hotspot.cpp
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+++ b/engines/pegasus/hotspot.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.
+ *
+ * Additional copyright for this file:
+ * Copyright (C) 1995-1997 Presto Studios, Inc.
+ *
+ * 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 "common/stream.h"
+
+#include "pegasus/hotspot.h"
+
+namespace Pegasus {
+
+Region::Region(Common::ReadStream *stream) {
+	uint16 length = stream->readUint16BE();
+
+	assert(length >= 10);
+
+	_bounds.top = stream->readUint16BE();
+	_bounds.left = stream->readUint16BE();
+	_bounds.bottom = stream->readUint16BE();
+	_bounds.right = stream->readUint16BE();
+
+	_bounds.debugPrint(0, "Bounds:");
+
+	if (length == 10)
+		return;
+
+	length -= 10;
+
+	while (length > 0) {
+		Vector v;
+		v.y = stream->readUint16BE();
+		length -= 2;
+
+		if (v.y == 0x7fff)
+			break;
+
+		debug(0, "y: %d", v.y);
+
+		// Normalize y to _bounds
+		v.y -= _bounds.top;
+
+		while (length > 0) {
+			Run run;
+			run.start = stream->readUint16BE();
+			length -= 2;
+
+			if (run.start == 0x7fff)
+				break;
+
+			run.end = stream->readUint16BE();
+			length -= 2;
+
+			debug(0, "\t[%d, %d)", run.start, run.end);
+
+			// Normalize to _bounds
+			run.start -= _bounds.left;
+			run.end -= _bounds.left;
+
+			v.push_back(run);
+		}
+
+		_vectors.push_back(v);
+	}
+}
+
+Region::Region(const Common::Rect &rect) {
+	_bounds = rect;
+}
+
+bool Region::pointInRegion(const Common::Point &point) const {
+	if (!_bounds.contains(point))
+		return false;
+
+	bool pixelActive = false;
+
+	// Normalize the points to _bounds
+	uint16 x = point.x - _bounds.left;
+	uint16 y = point.y - _bounds.top;
+
+	for (Common::List<Vector>::const_iterator v = _vectors.begin(); v != _vectors.end(); v++) {
+		if (v->y > y)
+			return pixelActive;
+
+		for (Vector::const_iterator run = v->begin(); run != v->end(); run++) {
+			if (x >= run->start && x < run->end) {
+				pixelActive = !pixelActive;
+				break;
+			}
+		}
+	}
+
+	// the case if the region is just a rect
+	return true;
+}
+
+void Region::moveTo(CoordType h, CoordType v) {
+	_bounds.moveTo(h, v);
+}
+
+void Region::moveTo(const Common::Point &point) {
+	_bounds.moveTo(point);
+}
+
+void Region::translate(CoordType h, CoordType v) {
+	_bounds.translate(h, v);
+}
+
+void Region::translate(const Common::Point &point) {
+	_bounds.translate(point.x, point.y);
+}
+
+void Region::getCenter(CoordType &h, CoordType &v) const {
+	h = (_bounds.left + _bounds.right) / 2;
+	v = (_bounds.top + _bounds.bottom) / 2;
+}
+
+void Region::getCenter(Common::Point &point) const {
+	getCenter(point.x, point.y);
+}
+
+Hotspot::Hotspot(const HotSpotID id) : IDObject(id) {
+	_spotFlags = kNoHotSpotFlags;
+	_spotActive = false;
+}
+
+Hotspot::~Hotspot() {
+}
+
+void Hotspot::setArea(const Common::Rect &area) {
+	_spotArea = Region(area);
+}
+
+void Hotspot::setArea(const CoordType left, const CoordType top, const CoordType right, const CoordType bottom) {
+	_spotArea = Region(Common::Rect(left, top, right, bottom));
+}
+
+void Hotspot::getBoundingBox(Common::Rect &r) const {
+	r = _spotArea.getBoundingBox();
+}
+
+void Hotspot::getCenter(Common::Point &pt) const {
+	_spotArea.getCenter(pt);
+}
+
+void Hotspot::getCenter(CoordType &h, CoordType &v) const {
+	_spotArea.getCenter(h, v);
+}
+
+void Hotspot::setActive() {
+	_spotActive = true;
+}
+
+void Hotspot::setInactive() {
+	_spotActive = false;
+}
+
+void Hotspot::setHotspotFlags(const HotSpotFlags flags) {
+	_spotFlags = flags;
+}
+
+void Hotspot::setMaskedHotspotFlags(const HotSpotFlags flags, const HotSpotFlags mask) {
+	_spotFlags = (_spotFlags & ~mask) | flags;
+}
+
+bool Hotspot::isSpotActive() const {
+	return _spotActive;
+}
+
+void Hotspot::moveSpotTo(const CoordType h, const CoordType v) {
+	_spotArea.moveTo(h, v);
+}
+
+void Hotspot::moveSpotTo(const Common::Point pt) {
+	_spotArea.moveTo(pt);
+}
+
+void Hotspot::moveSpot(const CoordType h, const CoordType v) {
+	_spotArea.translate(h, v);
+}
+
+void Hotspot::moveSpot(const Common::Point pt) {
+	_spotArea.translate(pt.x, pt.y);
+}
+
+bool Hotspot::pointInSpot(const Common::Point where) const {
+	return _spotActive && _spotArea.pointInRegion(where);
+}
+
+HotSpotFlags Hotspot::getHotspotFlags() const {
+	return _spotFlags;
+}
+
+HotspotList::HotspotList() {
+}
+
+HotspotList::~HotspotList() {
+	// TODO: Should this call deleteHotspots()?
+}
+
+void HotspotList::deleteHotspots() {
+	for (HotspotIterator it = begin(); it != end(); it++)
+		delete *it;
+
+	clear();
+}
+
+Hotspot *HotspotList::findHotspot(const Common::Point where) {
+	for (HotspotIterator it = begin(); it != end(); it++)
+		if ((*it)->pointInSpot(where))
+			return *it;
+
+	return 0;
+}
+
+HotSpotID HotspotList::findHotspotID(const Common::Point where) {
+	Hotspot *hotspot = findHotspot(where);
+	return hotspot ? hotspot->getObjectID() : kNoHotSpotID;
+}
+
+Hotspot *HotspotList::findHotspotByID(const HotSpotID id) {
+	for (HotspotIterator it = begin(); it != end(); it++)
+		if ((*it)->getObjectID() == id)
+			return *it;
+
+	return 0;
+}
+
+Hotspot *HotspotList::findHotspotByMask(const HotSpotFlags flags) {
+	for (HotspotIterator it = begin(); it != end(); it++)
+		if (((*it)->getHotspotFlags() & flags) == flags)
+			return *it;
+
+	return 0;
+}
+
+void HotspotList::activateMaskedHotspots(const HotSpotFlags flags) {
+	for (HotspotIterator it = begin(); it != end(); it++)
+		if (flags == kNoHotSpotFlags || ((*it)->getHotspotFlags() & flags) != 0)
+			(*it)->setActive();
+}
+
+void HotspotList::deactivateAllHotspots() {
+	for (HotspotIterator it = begin(); it != end(); it++)
+		(*it)->setInactive();
+}
+
+void HotspotList::deactivateMaskedHotspots(const HotSpotFlags flags) {
+	for (HotspotIterator it = begin(); it != end(); it++)
+		if (((*it)->getHotspotFlags() & flags) != 0)
+			(*it)->setInactive();
+}
+
+void HotspotList::activateOneHotspot(const HotSpotID id) {
+	for (HotspotIterator it = begin(); it != end(); it++) {
+		if ((*it)->getObjectID() == id) {
+			(*it)->setActive();
+			return;
+		}
+	}
+}
+
+void HotspotList::deactivateOneHotspot(const HotSpotID id) {
+	for (HotspotIterator it = begin(); it != end(); it++) {
+		if ((*it)->getObjectID() == id) {
+			(*it)->setInactive();
+			return;
+		}
+	}
+}
+
+void HotspotList::removeOneHotspot(const HotSpotID id) {
+	for (HotspotIterator it = begin(); it != end(); it++) {
+		if ((*it)->getObjectID() == id) {
+			erase(it);
+			return;
+		}
+	}
+}
+
+void HotspotList::removeMaskedHotspots(const HotSpotFlags flags) {
+	if (flags != kNoHotSpotFlags) {
+		for (HotspotIterator it = begin(); it != end(); ) {
+			if (((*it)->getHotspotFlags() & flags) != 0)
+				it = erase(it);
+			else
+				it++;
+		}
+	} else {
+		clear();
+	}
+}
+
+void HotspotList::setHotspotRect(const HotSpotID id, const Common::Rect &r) {
+	Hotspot *hotspot = findHotspotByID(id);
+	if (hotspot)
+		hotspot->setArea(r);
+}
+
+void HotspotList::getHotspotRect(const HotSpotID id, Common::Rect &r) {
+	Hotspot *hotspot = findHotspotByID(id);
+	if (hotspot)
+		hotspot->getBoundingBox(r);
+}
+
+} // End of namespace Pegasus