PRINCE: loadOverlays(), checkNak()

6 files changed, 78 insertions, 13 deletions

diff --git a/engines/prince/hero.cpp b/engines/prince/hero.cpp
index b8e5780a4c..2f984c1814 100644
--- a/engines/prince/hero.cpp
+++ b/engines/prince/hero.cpp
@@ -140,10 +140,6 @@ int Hero::getScaledValue(int size) {
 	}
 }
 
-void Hero::checkNak() {
-
-}
-
 Graphics::Surface *Hero::zoomSprite(Graphics::Surface *heroFrame) {
 	Graphics::Surface *zoomedFrame = new Graphics::Surface();
 	zoomedFrame->create(_scaledFrameXSize, _scaledFrameYSize, Graphics::PixelFormat::createFormatCLUT8());
@@ -191,6 +187,7 @@ Graphics::Surface *Hero::zoomSprite(Graphics::Surface *heroFrame) {
 }
 
 void Hero::countDrawPosition() {
+	int16 tempMiddleX;
 	int16 tempMiddleY;
 	int16 baseX = _moveSet[_moveSetType]->getBaseX();
 	int16 baseY = _moveSet[_moveSetType]->getBaseY();
@@ -206,12 +203,12 @@ void Hero::countDrawPosition() {
 	_scaledFrameYSize = getScaledValue(_frameYSize);
 	
 	//TODO
-	//int tempHeroHeight = scaledY; // not used? global?
-	//int width = scaledX / 2;
-	//tempMiddleX = _middleX - width; //eax
-	//int z = _middleY; //ebp
-	//int y = _middleY - scaledY; //ecx
-	//checkNak();
+	int tempHeroHeight = _scaledFrameYSize; // not used? global?
+	int width = _frameXSize / 2;
+	tempMiddleX = _middleX - width; //eax
+	int z = _middleY; //ebp
+	int y = _middleY - _scaledFrameYSize; //ecx
+	_vm->checkNak(tempMiddleX, y, _scaledFrameXSize, _scaledFrameYSize, z);
 
 	if (_zoomFactor != 0) {
 		//notfullSize
diff --git a/engines/prince/hero.h b/engines/prince/hero.h
index 839907a574..565212447b 100644
--- a/engines/prince/hero.h
+++ b/engines/prince/hero.h
@@ -115,7 +115,6 @@ public:
 	int getScaledValue(int size);
 	void selectZoom();
 	void countDrawPosition();
-	void checkNak();
 	Graphics::Surface *zoomSprite(Graphics::Surface *heroFrame);
 	void showHeroAnimFrame();
 	void line(int x1, int y1, int x2, int y2);
diff --git a/engines/prince/prince.cpp b/engines/prince/prince.cpp
index 5e1b49e48e..beaa997184 100644
--- a/engines/prince/prince.cpp
+++ b/engines/prince/prince.cpp
@@ -318,6 +318,10 @@ bool PrinceEngine::loadLocation(uint16 locationNr) {
 	_mainHero->setShadowScale(_script->getShadowScale(_locationNr));
 
 	_room->loadRoom(_script->getRoomOffset(_locationNr));
+
+	_overlayList.clear();
+	_script->loadOverlays(_overlayList, _room->_nak);
+
 	clearBackAnimList();
 	_script->installBackAnims(_backAnimList, _room->_backAnim);
 
@@ -742,6 +746,25 @@ bool PrinceEngine::spriteCheck(Graphics::Surface *backAnimSurface, int destX, in
 	return true;
 }
 
+void PrinceEngine::checkNak(int x1, int y1, int sprWidth, int sprHeight, int z) {
+	int x2 = x1 + sprWidth - 1;
+	int y2 = y1 + sprHeight - 1;
+	if (x1 < 0) {
+		x1 = 0;
+	}
+	for (uint i = 0; i < _overlayList.size() ; i++) {
+		if (_overlayList[i]._state != 1 && _overlayList[i]._flags != 1) {
+			if (_overlayList[i]._z > z) {
+				if (_overlayList[i]._x1 <= x2 && _overlayList[i]._x2 >= x1) {
+					if (_overlayList[i]._y1 <= y2 && _overlayList[i]._y2 >= y1) {
+						_overlayList[i]._state = 1;
+					}
+				}
+			}
+		}
+	}
+}
+
 void PrinceEngine::showSprite(Graphics::Surface *backAnimSurface, int destX, int destY) {
 	if (spriteCheck(backAnimSurface, destX, destY)) {
 		destX -= _picWindowX;
diff --git a/engines/prince/prince.h b/engines/prince/prince.h
index 8b840d3cab..988f468a72 100644
--- a/engines/prince/prince.h
+++ b/engines/prince/prince.h
@@ -141,6 +141,18 @@ struct BackgroundAnim {
 	Common::Array<Anim> backAnims;
 };
 
+// Nak (PL - Nakladka)
+struct Overlay {
+	int16 _state; // visible / invisible
+	int16 _flags; // turning on / turning off of an overlay
+	int16 _x1;
+	int16 _y1;
+	int16 _x2;
+	int16 _y2;
+	int16 _z;
+	int16 _number; // number of mask for background recreating
+};
+
 struct DebugChannel {
 
 enum Type {
@@ -209,6 +221,8 @@ public:
 	static const int16 kNormalWidth = 640;
 	static const int16 kNormalHeight = 480;
 
+	void checkNak(int x1, int y1, int sprWidth, int sprHeight, int z);
+
 	int testAnimNr;
 	int testAnimFrame;
 
@@ -255,6 +269,7 @@ private:
 	Animation *_zoom;
 	Common::Array<Mob> _mobList;
 	Common::Array<Object *> _objList;
+	Common::Array<Overlay> _overlayList;
 
 	bool _flicLooped;
 	
diff --git a/engines/prince/script.cpp b/engines/prince/script.cpp
index 48617f16f5..9798882bbc 100644
--- a/engines/prince/script.cpp
+++ b/engines/prince/script.cpp
@@ -284,13 +284,42 @@ void Script::installSingleBackAnim(Common::Array<BackgroundAnim> &_backanimList,
 	}
 }
 
-void Script::installBackAnims(Common::Array<BackgroundAnim> &_backanimList, int offset) {
+void Script::installBackAnims(Common::Array<BackgroundAnim> &backanimList, int offset) {
 	for (uint i = 0; i < 64; i++) {
-		installSingleBackAnim(_backanimList, offset);
+		installSingleBackAnim(backanimList, offset);
 		offset += 4;
 	}
 }
 
+void Script::loadOverlays(Common::Array<Overlay> &overlayList, int offset) {
+	Overlay tempOverlay;
+	while (1) {
+		tempOverlay._state = READ_UINT32(&_data[offset]);
+		if (tempOverlay._state == -1) {
+			break;
+		}
+		debug("tempOverlay._state: %d", tempOverlay._state);
+		tempOverlay._flags = READ_UINT32(&_data[offset + 2]);
+		debug("tempOverlay._flags: %d", tempOverlay._flags);
+		tempOverlay._x1 = READ_UINT32(&_data[offset + 4]);
+		debug("tempOverlay._x1: %d", tempOverlay._x1);
+		tempOverlay._y1 = READ_UINT32(&_data[offset + 6]);
+		debug("tempOverlay._y1: %d", tempOverlay._y1);
+		tempOverlay._x2 = READ_UINT32(&_data[offset + 8]);
+		debug("tempOverlay._x2: %d", tempOverlay._x2);
+		tempOverlay._y2 = READ_UINT32(&_data[offset + 10]);
+		debug("tempOverlay._y2: %d", tempOverlay._y2);
+		tempOverlay._z = READ_UINT32(&_data[offset + 12]);
+		debug("tempOverlay._z: %d", tempOverlay._z);
+		tempOverlay._number = READ_UINT32(&_data[offset + 14]);
+		debug("tempOverlay._number: %d\n", tempOverlay._number);
+		overlayList.push_back(tempOverlay);
+		offset += 16; // size of Overlay (Nak) struct
+	}
+	debug("NAK size: %d", sizeof(Overlay));
+	debug("overlayList size: %d", overlayList.size());
+}
+
 InterpreterFlags::InterpreterFlags() {
 	resetAllFlags();
 }
diff --git a/engines/prince/script.h b/engines/prince/script.h
index 5f0f1e139e..d0693ca11f 100644
--- a/engines/prince/script.h
+++ b/engines/prince/script.h
@@ -39,6 +39,7 @@ class PrinceEngine;
 class Animation;
 struct Anim;
 struct BackgroundAnim;
+struct Overlay;
 
 namespace Detail {
 	template <typename T> T LittleEndianReader(void *data);
@@ -134,6 +135,7 @@ public:
 	uint8 *getRoomOffset(int locationNr);
 	void installBackAnims(Common::Array<BackgroundAnim> &_backanimList, int offset);
 	void installSingleBackAnim(Common::Array<BackgroundAnim> &_backanimList, int offset);
+	void loadOverlays(Common::Array<Overlay> &overlayList, int offset);
 
 	const char *getString(uint32 offset) {
 		return (const char *)(&_data[offset]);