NEVERHOOD: Implement clipping against multiple clipRects, used only in several scenes for the Klayman sprite.

Currently only implemented in KmScene2201 for testing.

8 files changed, 34 insertions, 20 deletions

diff --git a/engines/neverhood/gamemodule.cpp b/engines/neverhood/gamemodule.cpp
index d1321056f4..174edd305d 100644
--- a/engines/neverhood/gamemodule.cpp
+++ b/engines/neverhood/gamemodule.cpp
@@ -310,7 +310,7 @@ void GameModule::startup() {
 
 #if 1
 	_vm->gameState().sceneNum = 0;
-	createModule(2100, -1);
+	createModule(2200, -1);
 #endif
 #if 0
 	_vm->gameState().sceneNum = 0;
diff --git a/engines/neverhood/graphics.cpp b/engines/neverhood/graphics.cpp
index b1597f2d5e..84aa3d67da 100644
--- a/engines/neverhood/graphics.cpp
+++ b/engines/neverhood/graphics.cpp
@@ -27,7 +27,8 @@
 namespace Neverhood {
 
 BaseSurface::BaseSurface(NeverhoodEngine *vm, int priority, int16 width, int16 height)
-	: _vm(vm), _priority(priority), _visible(true), _transparent(true) {
+	: _vm(vm), _priority(priority), _visible(true), _transparent(true),
+	_clipRects(NULL), _clipRectsCount(0) {
 	
 	_drawRect.x = 0;
 	_drawRect.y = 0;
@@ -52,7 +53,9 @@ BaseSurface::~BaseSurface() {
 
 void BaseSurface::draw() {
 	if (_surface && _visible && _drawRect.width > 0 && _drawRect.height > 0) {
-		if (_sysRect.x == 0 && _sysRect.y == 0) {
+		if (_clipRects && _clipRectsCount) {
+			_vm->_screen->drawSurfaceClipRects(_surface, _drawRect, _clipRects, _clipRectsCount, _transparent);
+		} else if (_sysRect.x == 0 && _sysRect.y == 0) {
 			_vm->_screen->drawSurface2(_surface, _drawRect, _clipRect, _transparent);
 		} else {
 			_vm->_screen->drawUnk(_surface, _drawRect, _sysRect, _clipRect, _transparent);
diff --git a/engines/neverhood/graphics.h b/engines/neverhood/graphics.h
index 3b30b25338..57c22509f8 100644
--- a/engines/neverhood/graphics.h
+++ b/engines/neverhood/graphics.h
@@ -101,6 +101,8 @@ public:
 	NDrawRect& getSysRect() { return _sysRect; }
 	NRect& getClipRect() { return _clipRect; }
 	void setClipRect(NRect clipRect) { _clipRect = clipRect; }
+	void setClipRects(NRect *clipRects, uint clipRectsCount) { _clipRects = clipRects; _clipRectsCount = clipRectsCount; }
+	void clearClipRects() { _clipRects = NULL; _clipRectsCount = 0; }
 	bool getVisible() const { return _visible; }
 	void setVisible(bool value) { _visible = value; }
 	void setTransparent(bool value) { _transparent = value; }
@@ -113,6 +115,8 @@ protected:
 	NDrawRect _drawRect;
 	NDrawRect _sysRect;
 	NRect _clipRect;
+	NRect *_clipRects;
+	uint _clipRectsCount;
 	bool _transparent;
 };
 
diff --git a/engines/neverhood/klayman.cpp b/engines/neverhood/klayman.cpp
index 93cc49e305..82c6114d5d 100644
--- a/engines/neverhood/klayman.cpp
+++ b/engines/neverhood/klayman.cpp
@@ -4636,9 +4636,10 @@ uint32 KmScene2101::xHandleMessage(int messageNum, const MessageParam &param) {
 }
 
 KmScene2201::KmScene2201(NeverhoodEngine *vm, Entity *parentScene, int16 x, int16 y, NRect *clipRects, int clipRectsCount)
-	// TODO: NRect *rect1, int16 unk in Klayman ctor
 	: Klayman(vm, parentScene, x, y, 1000, 1000) {
 
+	_surface->setClipRects(clipRects, clipRectsCount);
+
 	_dataResource.load(0x04104242);
 	_flagF6 = false;
 }
@@ -4831,7 +4832,7 @@ uint32 KmScene2205::xHandleMessage(int messageNum, const MessageParam &param) {
 KmScene2206::KmScene2206(NeverhoodEngine *vm, Entity *parentScene, int16 x, int16 y)
 	: Klayman(vm, parentScene, x, y, 1000, 1000) {
 
-    _walkResumeFrameIncr = 1;
+	_walkResumeFrameIncr = 1;
 	_vm->_soundMan->addSound(0x80101800, 0xD3B02847);
 }
 
diff --git a/engines/neverhood/module2200.cpp b/engines/neverhood/module2200.cpp
index 4460314d5e..d7991c2bd7 100644
--- a/engines/neverhood/module2200.cpp
+++ b/engines/neverhood/module2200.cpp
@@ -526,49 +526,49 @@ Scene2201::Scene2201(NeverhoodEngine *vm, Module *parentModule, int which)
 		}
 	}
 
-	_rect1.y1 = 0;
-	_rect1.x2 = 640;
-	_rect2.x2 = 640;
-	_rect2.y2 = 480;
+	_clipRects[0].y1 = 0;
+	_clipRects[0].x2 = 640;
+	_clipRects[1].x2 = 640;
+	_clipRects[1].y2 = 480;
 	
 	if (!getGlobalVar(0x404290D5)) {
 		insertStaticSprite(0x00026027, 900);
 	}
 	
 	tempSprite = insertStaticSprite(0x030326A0, 1100);
-	_rect1.x1 = tempSprite->getDrawRect().x;
+	_clipRects[0].x1 = tempSprite->getDrawRect().x;
 	
 	insertStaticSprite(0x811DA061, 1100);
 
 	tempSprite = insertStaticSprite(0x11180022, 1100);
-	_rect2.x1 = tempSprite->getDrawRect().x;
+	_clipRects[1].x1 = tempSprite->getDrawRect().x;
 
 	tempSprite = insertStaticSprite(0x0D411130, 1100);
-	_rect1.y2 = tempSprite->getDrawRect().y2();
-	_rect2.y1 = tempSprite->getDrawRect().y2();
+	_clipRects[0].y2 = tempSprite->getDrawRect().y2();
+	_clipRects[1].y1 = tempSprite->getDrawRect().y2();
 	
 	_doorLightSprite = insertStaticSprite(0xA4062212, 900);
 
 	if (which < 0) {
-		insertKlayman<KmScene2201>(300, 427, &_rect1, 2);
+		insertKlayman<KmScene2201>(300, 427, _clipRects, 2);
 		setMessageList(0x004B8118);
 		_asDoor = insertSprite<AsScene2201Door>(_klayman, _doorLightSprite, false);
 	} else if (which == 1) {
-		insertKlayman<KmScene2201>(412, 393, &_rect1, 2);
+		insertKlayman<KmScene2201>(412, 393, _clipRects, 2);
 		setMessageList(0x004B8130);
 		_asDoor = insertSprite<AsScene2201Door>(_klayman, _doorLightSprite, false);
 	} else if (which == 2) {
 		if (getGlobalVar(0xC0418A02)) {
-			insertKlayman<KmScene2201>(379, 427, &_rect1, 2);
+			insertKlayman<KmScene2201>(379, 427, _clipRects, 2);
 			_klayman->setDoDeltaX(1);
 		} else {
-			insertKlayman<KmScene2201>(261, 427, &_rect1, 2);
+			insertKlayman<KmScene2201>(261, 427, _clipRects, 2);
 		}
 		setMessageList(0x004B8178);
 		_asDoor = insertSprite<AsScene2201Door>(_klayman, _doorLightSprite, false);
 	} else {
 		NPoint pt = _dataResource.getPoint(0x0304D8DC);
-		insertKlayman<KmScene2201>(pt.x, pt.y, &_rect1, 2);
+		insertKlayman<KmScene2201>(pt.x, pt.y, _clipRects, 2);
 		setMessageList(0x004B8120);
 		_asDoor = insertSprite<AsScene2201Door>(_klayman, _doorLightSprite, true);
 	}
diff --git a/engines/neverhood/module2200.h b/engines/neverhood/module2200.h
index 53b94695d8..e869e4c89c 100644
--- a/engines/neverhood/module2200.h
+++ b/engines/neverhood/module2200.h
@@ -96,8 +96,7 @@ public:
 	Scene2201(NeverhoodEngine *vm, Module *parentModule, int which);
 	~Scene2201();
 protected:
-	NRect _rect1;
-	NRect _rect2;
+	NRect _clipRects[2];
 	Sprite *_doorLightSprite;
 	Sprite *_asDoor;
 	Sprite *_ssDoorButton;
diff --git a/engines/neverhood/screen.cpp b/engines/neverhood/screen.cpp
index dfc5358c5b..372c705b3e 100644
--- a/engines/neverhood/screen.cpp
+++ b/engines/neverhood/screen.cpp
@@ -299,4 +299,10 @@ void Screen::drawUnk(const Graphics::Surface *surface, NDrawRect &drawRect, NDra
 
 }
 
+void Screen::drawSurfaceClipRects(const Graphics::Surface *surface, NDrawRect &drawRect, NRect *clipRects, uint clipRectsCount, bool transparent) {
+	NDrawRect clipDrawRect(0, 0, drawRect.width, drawRect.height);
+	for (uint i = 0; i < clipRectsCount; i++)
+		drawSurface3(surface, drawRect.x, drawRect.y, clipDrawRect, clipRects[i], transparent);
+}
+
 } // End of namespace Neverhood
diff --git a/engines/neverhood/screen.h b/engines/neverhood/screen.h
index 07be04cf32..fe5a2546c0 100644
--- a/engines/neverhood/screen.h
+++ b/engines/neverhood/screen.h
@@ -50,6 +50,7 @@ public:
 		const Graphics::Surface *shadowSurface = NULL);
 	void drawDoubleSurface2(const Graphics::Surface *surface, NDrawRect &drawRect);
 	void drawUnk(const Graphics::Surface *surface, NDrawRect &drawRect, NDrawRect &sysRect, NRect &clipRect, bool transparent);
+	void drawSurfaceClipRects(const Graphics::Surface *surface, NDrawRect &drawRect, NRect *clipRects, uint clipRectsCount, bool transparent);
 protected:
 	NeverhoodEngine *_vm;
 	Graphics::Surface *_backScreen;