SHERLOCK: Implemented Map::show method

1 files changed, 269 insertions, 2 deletions

diff --git a/engines/sherlock/map.cpp b/engines/sherlock/map.cpp
index 8257c16a38..aae8d683c0 100644
--- a/engines/sherlock/map.cpp
+++ b/engines/sherlock/map.cpp
@@ -21,10 +21,20 @@
  */
 
 #include "sherlock/map.h"
+#include "sherlock/sherlock.h"
 
 namespace Sherlock {
 
-Map::Map(SherlockEngine *vm): _vm(vm) {
+Map::Map(SherlockEngine *vm): _vm(vm), _topLine(SHERLOCK_SCREEN_WIDTH, 12) {
+	_shapes = nullptr;
+	_iconShapes = nullptr;
+	_point = 0;
+	_placesShown = false;
+	_charPoint = -1;
+	for (int idx = 0; idx < 3; ++idx)
+		Common::fill(&_sequences[idx][0], &_sequences[idx][MAX_FRAME], 0);
+
+	loadData();
 }
 
 /**
@@ -37,10 +47,267 @@ void Map::loadPoints(int count, const int *xList, const int *yList) {
 }
 
 /**
+ * Load data  needed for the map
+ */
+void Map::loadData() {
+	// Load the list of location names
+	Common::SeekableReadStream *txtStream = _vm->_res->load("chess.txt");
+	char c;
+
+	while (txtStream->pos() < txtStream->size()) {
+		Common::String line;
+		while ((c = txtStream->readByte()) != '\0')
+			line += c;
+
+		_locationNames.push_back(line);
+	}
+
+	delete txtStream;
+
+	// Load the path data
+	Common::SeekableReadStream *pathStream = _vm->_res->load("chess.pth");
+
+	_paths.resize(31);
+	for (uint idx = 0; idx < _paths.size(); ++idx) {
+		_paths[idx].resize(_paths.size());
+
+		for (uint idx2 = 0; idx2 < _paths.size(); ++idx2)
+			_paths[idx][idx2] = pathStream->readSint16LE();
+	}
+
+	// Load in the path point information
+	_pathPoints.resize(416);
+	for (uint idx = 0; idx < _pathPoints.size(); ++idx)
+		_pathPoints[idx] = pathStream->readSint16LE();
+
+	delete pathStream;
+}
+
+/**
  * Show the map
  */
 int Map::show() {
-	return 0;
+	Events &events = *_vm->_events;
+	People &people = *_vm->_people;
+	Scene &scene = *_vm->_scene;
+	Screen &screen = *_vm->_screen;
+	Common::Point lDrawn(-1, -1);
+	bool changed = false, exitFlag = false;
+	bool drawMap = true;
+
+	// Set font and custom cursor for the map
+	int oldFont = screen.fontNumber();
+	screen.setFont(0);
+
+	ImageFile mapCursors("omouse.vgs");
+	events.setCursor(mapCursors[0]);
+
+	// Load the entire map
+	ImageFile bigMap("bigmap.vgs");
+
+	// Load need sprites
+	setupSprites();
+
+	screen._backBuffer1.blitFrom(bigMap[1], Common::Point(-_bigPos.x, -_bigPos.y));
+	screen._backBuffer1.blitFrom(bigMap[2], Common::Point(-_bigPos.x, SHERLOCK_SCREEN_HEIGHT - _bigPos.y));
+	screen._backBuffer1.blitFrom(bigMap[3], Common::Point(SHERLOCK_SCREEN_WIDTH - _bigPos.x, -_bigPos.y));
+	screen._backBuffer1.blitFrom(bigMap[4], Common::Point(SHERLOCK_SCREEN_WIDTH - _bigPos.x, SHERLOCK_SCREEN_HEIGHT - _bigPos.y));
+
+	_point = -1;
+	people[AL]._position = _lDrawnPos = _overPos;
+
+	// Show place icons
+	showPlaces();
+	saveTopLine();
+	_placesShown = true;
+
+	// Keep looping until either a location is picked, or the game is ended
+	while (!_vm->shouldQuit() && !exitFlag) {
+		events.pollEventsAndWait();
+		events.setButtonState();
+
+		// Keyboard handling
+		if (events.kbHit()) {
+			Common::KeyState keyState = events.getKey();
+
+			if (keyState.keycode == Common::KEYCODE_RETURN || keyState.keycode == Common::KEYCODE_SPACE) {
+				// Both space and enter simulate a mouse release
+				events._pressed = false;
+				events._released = true;
+				events._oldButtons = 0;
+			}
+		}
+
+		// Ignore scrolling attempts until the screen is drawn
+		if (!drawMap) {
+			Common::Point pt = events.mousePos();
+			
+			// Check for vertical map scrolling
+			if ((pt.y > (SHERLOCK_SCREEN_HEIGHT - 10) && _bigPos.y < 200) || (pt.y < 10 && _bigPos.y > 0)) {
+				if (pt.y > (SHERLOCK_SCREEN_HEIGHT - 10))
+					_bigPos.y += 10;
+				else
+					_bigPos.y -= 10;
+
+				changed = true;
+			}
+
+			// Check for horizontal map scrolling
+			if ((pt.x > (SHERLOCK_SCREEN_WIDTH - 10) && _bigPos.x < 315) || (pt.x < 10 && _bigPos.x > 0)) {
+				if (pt.x > (SHERLOCK_SCREEN_WIDTH - 10))
+					_bigPos.x += 15;
+				else
+					_bigPos.x -= 15;
+
+				changed = true;
+			}
+		}
+
+		if (changed) {
+			// Map has scrolled, so redraw new map view
+			changed = false;
+
+			screen._backBuffer1.blitFrom(bigMap[1], Common::Point(-_bigPos.x, -_bigPos.y));
+			screen._backBuffer1.blitFrom(bigMap[2], Common::Point(-_bigPos.x, SHERLOCK_SCREEN_HEIGHT - _bigPos.y));
+			screen._backBuffer1.blitFrom(bigMap[3], Common::Point(SHERLOCK_SCREEN_WIDTH - _bigPos.x, -_bigPos.y));
+			screen._backBuffer1.blitFrom(bigMap[4], Common::Point(SHERLOCK_SCREEN_WIDTH - _bigPos.x, SHERLOCK_SCREEN_HEIGHT - _bigPos.y));
+
+			showPlaces();
+			_placesShown = false;
+
+			saveTopLine();
+			_savedPos.x = -1;
+			updateMap(true);
+		} else if (!drawMap) {
+			if (!_placesShown) {
+				showPlaces();
+				_placesShown = true;
+			}
+
+			updateMap(false);
+		}
+
+		if ((events._released || events._rightReleased) && _point != -1) {
+			if (people[AL]._walkCount == 0) {
+				_charPoint = _point;
+				walkTheStreets();
+
+				events.setCursor(mapCursors[1]);
+			}
+		}
+
+		// Check if a scene has beeen selected and we've finished "moving" to it
+		if (people[AL]._walkCount == 0) {
+			if (_charPoint >= 1 && _charPoint < (int)_points.size())
+				exitFlag = true;
+		}
+
+		if (drawMap) {
+			drawMap = false;
+
+			if (screen._fadeStyle)
+				screen.randomTransition();
+			else
+				screen.slamArea(0, 0, SHERLOCK_SCREEN_WIDTH, SHERLOCK_SCREEN_HEIGHT);
+		}
+
+		// Wait for a frame
+		events.wait(1);
+	}
+
+	freeSprites();
+	_overPos = people[AL]._position;
+
+	// Reset font and cursor
+	screen.setFont(oldFont);
+	events.setCursor(ARROW);
+
+	return _charPoint;
+}
+
+/**
+ * Load and initialize all the sprites that are needed for the map display
+ */
+void Map::setupSprites() {
+	People &people = *_vm->_people;
+	Scene &scene = *_vm->_scene;
+	typedef byte Sequences[16][MAX_FRAME];
+	_savedPos.x = -1;
+
+	_shapes = new ImageFile("mapicon.vgs");
+	_iconShapes = new ImageFile("overicon.vgs");
+
+	Person &p = people[AL];
+	p._description = " ";
+	p._type = CHARACTER;
+	p._position = Common::Point(12400, 5000);
+	p._sequenceNumber = 0;
+	p._sequences = (Sequences *)&_sequences;
+	p._images = _shapes;
+	p._imageFrame = nullptr;
+	p._frameNumber = 0;
+	p._delta = Common::Point(0, 0);
+	p._oldSize = Common::Point(0, 0);
+	p._oldSize = Common::Point(0, 0);
+	p._misc = 0;
+	p._walkCount = 0;
+	p._allow = 0;
+	p._noShapeSize = Common::Point(0, 0);
+	p._goto = Common::Point(28000, 15000);
+	p._status = 0;
+	p.setImageFrame();
+
+	scene._bgShapes.clear();
+}
+
+/**
+ * Free the sprites and data used by the map
+ */
+void Map::freeSprites() {
+	delete _shapes;
+	delete _iconShapes;
+}
+
+/**
+ * Draws an icon for every place that's currently known
+ */
+void Map::showPlaces() {
+	Screen &screen = *_vm->_screen;
+
+	for (uint idx = 0; idx < _points.size(); ++idx) {
+		const Common::Point &pt = _points[idx];
+
+		if (pt.x != 0 && pt.y != 0) {
+			if (pt.x >= _bigPos.x && (pt.x - _bigPos.x) < SHERLOCK_SCREEN_WIDTH
+					&& pt.y >= _bigPos.y && (pt.y - _bigPos.y) < SHERLOCK_SCREEN_HEIGHT) {
+				if (_vm->readFlags(idx)) {
+					screen._backBuffer1.transBlitFrom((*_iconShapes)[idx], 
+						Common::Point(pt.x - _bigPos.x - 6, pt.y - _bigPos.y - 12));
+				}
+			}
+		}
+	}
+}
+
+/**
+ * Makes a copy of the top rows of the screen that are used to display location names
+ */
+void Map::saveTopLine() {
+	_topLine.blitFrom(_vm->_screen->_backBuffer1, Common::Point(0, 0), Common::Rect(0, 0, SHERLOCK_SCREEN_WIDTH, 12));
+}
+
+/**
+ * Update all on-screen sprites to account for any scrolling of the map
+ */
+void Map::updateMap(bool flushScreen) {
+	// TODO
+}
+
+/**
+ * Handle moving icon for player from their previous location on the map to a destination location
+ */
+void Map::walkTheStreets() {
+	// TODO
 }
 
 } // End of namespace Sherlock