PRINCE: scrollHero()

engines/prince/hero.cpp

@@ -26,11 +26,12 @@
 #include "prince/hero_set.h"
 #include "prince/animation.h"
 #include "prince/resource.h"
+#include "prince/prince.h"
 
 
 namespace Prince {
 
-Hero::Hero() : _number(0), _visible(false), _state(MOVE), _middleX(0), _middleY(0)
+Hero::Hero(PrinceEngine *vm) : _vm(vm), _number(0), _visible(false), _state(MOVE), _middleX(0), _middleY(0)
 	, _boreNum(1), _currHeight(0), _moveDelay(0), _shadMinus(0), _moveSetType(0)
 	, _lastDirection(DOWN), _destDirection(DOWN), _talkTime(0), _boredomTime(0), _phase(0)
 	, _specAnim(0), _drawX(0), _drawY(0), _randomSource("prince"), _zoomFactor(0), _scaleValue(0)
@@ -269,12 +270,44 @@ Graphics::Surface *Hero::showHeroShadow(Graphics::Surface *heroFrame) {
 		}
 	}
 	return makeShadow;
-	// TODO
-	/*
-	int scaledX = getScaledValue(frameXSize);
-	int drawX = _middleX - scaledX / 2; // just _drawX
-	int DN_ECX5070 = _middleY - _shadMinus;
-	*/
+
+	// source Bitmap of sprite - esi
+	//int destX = _drawX; // eax
+	int destY = _middleY - _shadMinus; // ecx
+	// modulo of source Bitmap - ebp
+	//int scaledX = getScaledValue(frameXSize); // ebx
+	//int scaledY = getScaledValue(frameYSize); // edx
+	// shadowTable70 - edi
+
+	if (destY > 1 && destY < kMaxPicHeight) {
+		// pushad
+		// edx = destY
+		// ecx = destX
+		// ebx = _lightY
+		// eax = _lightX
+
+		int shadowDirection;
+		if (_lightY > destY) {
+			shadowDirection = 1;
+		} else {
+			shadowDirection = 0;
+		}
+		//int shadowLineLen = 0;
+		//int shadWallDown = 0;
+		// int shadowLine = Linijka();
+		// push lineCode
+		// mov lineCode <- @@Nopik
+		// Line();
+		// pop lineCode
+		// popad
+
+		// sprShadow = shadowTable70
+		// sprModulo = modulo of source Bitmap
+		// sprWidth = scaledX
+		// sprHeight = scaledY
+		//int sprDestX = destX - PicWindowX;
+		//int sprDestY = destY - PicWindowY;
+	}
 }
 
 void Hero::showHeroAnimFrame() {
@@ -491,6 +524,41 @@ void Hero::showHero() {
 		return;
 	}
 }
+
+void Hero::scrollHero() {
+	//FLAGI+SCROLLTYPE ??
+	//int scrollType = 0;
+	int position = _middleX;
+
+	/*
+	switch (scrollType) {
+	case 0:
+		position = _middleX;
+		break;
+	case 1:
+		break;
+	case 2:
+		break;
+	}
+	*/
+
+	int locationWidth = _vm->_sceneWidth;
+	int difference = locationWidth - kNormalWidth / 2;
+
+	int destValue = 0;
+	if (position > kNormalWidth / 2) {
+		destValue = difference - kNormalWidth / 2;
+	}
+	if (position < difference) {
+		destValue = position - kNormalWidth / 2;
+	}
+	if(destValue < 0) {
+		destValue = 0;
+	}
+	_vm->_picWindowX = destValue;
+	_drawX -= destValue;
+}
+
 }
 
 /* vim: set tabstop=4 noexpandtab: */

engines/prince/hero.h

@@ -31,13 +31,16 @@
 namespace Prince {
 
 class Animation;
+class PrinceEngine;
 
 class Hero {
 public:
 	static const uint32 kMoveSetSize = 26;
 	static const int16 kZoomStep = 4;
 	static const int16 kMaxPicWidth = 1280;
+	static const int16 kMaxPicHeight = 480;
 	static const int16 kZoomBitmapWidth = kMaxPicWidth / kZoomStep;
+	static const int16 kNormalWidth = 640;
 
 	static const uint8 kShadowColor = 191;
 
@@ -90,7 +93,7 @@ class Hero {
 		Move_BORED2
 	};
 
-	Hero();
+	Hero(PrinceEngine *vm);
 	~Hero();
 	Common::RandomSource _randomSource;
 	bool loadAnimSet(uint32 heroAnimNumber);
@@ -103,6 +106,7 @@ class Hero {
 	void showHero();
 	void moveHero();
 	void rotateHero();
+	void scrollHero();
 	void setScale(int8 zoomBitmapValue);
 	int getScaledValue(int size);
 	void selectZoom();
@@ -116,6 +120,7 @@ class Hero {
 	void getState();
 
 //private:
+	PrinceEngine *_vm;
 	uint16 _number;
 	uint16 _visible;
 	int16 _state;

engines/prince/prince.cpp

@@ -78,7 +78,7 @@ PrinceEngine::PrinceEngine(OSystem *syst, const PrinceGameDescription *gameDesc)
 	Engine(syst), _gameDescription(gameDesc), _graph(nullptr), _script(nullptr), _interpreter(nullptr), _flags(nullptr),
 	_locationNr(0), _debugger(nullptr), _midiPlayer(nullptr),
 	_cameraX(0), _newCameraX(0), _frameNr(0), _cursor1(nullptr), _cursor2(nullptr), _font(nullptr),
-	_walizkaBmp(nullptr), _roomBmp(nullptr), _cursorNr(0) {
+	_walizkaBmp(nullptr), _roomBmp(nullptr), _cursorNr(0), _picWindowX(0) {
 
 	// Debug/console setup
 	DebugMan.addDebugChannel(DebugChannel::kScript, "script", "Prince Script debug channel");
@@ -186,8 +186,8 @@ void PrinceEngine::init() {
 
 	_roomBmp = new Image::BitmapDecoder();
 
-	_mainHero = new Hero();
-	_secondHero = new Hero();
+	_mainHero = new Hero(this);
+	_secondHero = new Hero(this);
 
 	_mainHero->loadAnimSet(0);
 }
@@ -288,6 +288,8 @@ bool PrinceEngine::loadLocation(uint16 locationNr) {
 		Resource::loadResource(_mainHero->_shadowBitmap, "shadow2", false);
 	}
 
+	_picWindowX = 0;
+
 	_mainHero->_lightX = _script->getLightX(_locationNr);
 	_mainHero->_lightY = _script->getLightY(_locationNr);
 	_mainHero->setShadowScale(_script->getShadowScale(_locationNr));
@@ -633,7 +635,7 @@ void PrinceEngine::drawScreen() {
 	const Graphics::Surface *roomSurface = _roomBmp->getSurface();	
 	if (roomSurface) {
 		_graph->setPalette(_roomBmp->getPalette());
-		const Graphics::Surface visiblePart = roomSurface->getSubArea(Common::Rect(_cameraX, 0, roomSurface->w, roomSurface->h));
+		const Graphics::Surface visiblePart = roomSurface->getSubArea(Common::Rect(_picWindowX, 0, roomSurface->w, roomSurface->h));
 		_graph->draw(0, 0, &visiblePart);
 	}
 
@@ -695,6 +697,9 @@ void PrinceEngine::mainLoop() {
 
 		// TODO: Update all structures, animations, naks, heros etc.
 		_mainHero -> showHero();
+		if(_mainHero->_visible == 1) {
+			_mainHero -> scrollHero();
+		}
 
 		_interpreter->step();
 

engines/prince/prince.h

@@ -140,6 +140,11 @@ class PrinceEngine : public Engine {
 	Hero* _mainHero;
 	Hero* _secondHero;
 
+	uint16 _cameraX;
+	uint16 _newCameraX;
+	uint16 _sceneWidth;
+	uint32 _picWindowX;
+
 private:
 	bool playNextFrame();
 	void keyHandler(Common::Event event);
@@ -181,10 +186,6 @@ class PrinceEngine : public Engine {
 	Common::Array<Object *> _objList;
 	Common::Array<AnimListItem> _animList;
 
-	uint16 _cameraX;
-	uint16 _newCameraX;
-	uint16 _sceneWidth;
-
 	bool _flicLooped;
 
 	void mainLoop();