DREAMWEB: implemented doshake

2 files changed, 32 insertions, 5 deletions

diff --git a/engines/dreamweb/dreamweb.cpp b/engines/dreamweb/dreamweb.cpp
index 0b8146a44d..60462dc463 100644
--- a/engines/dreamweb/dreamweb.cpp
+++ b/engines/dreamweb/dreamweb.cpp
@@ -683,7 +683,32 @@ void fadedos(Context &context) {
 }
 
 void doshake(Context &context) {
-	//warning("doshake: STUB");
+	uint8 &counter = context.data.byte(kShakecounter);
+	context._cmp(counter, 48);
+	if (context.flags.z())
+		return;
+
+	context._add(counter, 1);
+	static const int shakeTable[] = {
+		0, -2,  3, -2,  0,  2,  4, -1,
+		1, -3,  3,  2,  0, -2,  3, -2,
+		0,  2,  4, -1,  1, -3,  3,  2,
+		0, -2,  3, -2,  0,  2,  4, -1,
+
+		1, -3,  3,  2,  0, -2,  3, -2,
+		0,  2,  4, -1,  1, -3,  3,  2,
+		0, -2,  3, -2,  0,  2,  4, -1,
+		1, -3,  3,  2,  0, -2,  3, -2,
+
+		0,  2,  4, -1,  1, -3,  3,  2,
+		0, -2,  3, -2,  0,  2,  4, -1,
+		1, -3,  3,  2,  0, -2,  3, -2,
+		0,  2,  4, -1,  1, -3,  3,  2,
+
+		0, -2,  3, -2,  0,  2,  4, -1,
+		1, -3,  3,  0,
+	};
+	context.engine->setShakePos(shakeTable[counter]);
 }
 
 void vsync(Context &context) {
diff --git a/engines/dreamweb/dreamweb.h b/engines/dreamweb/dreamweb.h
index c0bd9d9d63..8cd489cc7e 100644
--- a/engines/dreamweb/dreamweb.h
+++ b/engines/dreamweb/dreamweb.h
@@ -85,16 +85,18 @@ public:
 	void fadeDos();
 	void blit(const uint8 *src, int pitch, int x, int y, int w, int h);
 	void cls();
-	
+
 	void getPalette(uint8 *data, uint start, uint count);
 	void setPalette(const uint8 *data, uint start, uint count);
-	
+
 	void openSaveFileForWriting(const Common::String &name);
 	uint writeToSaveFile(const uint8 *data, uint size);
 
 	bool openSaveFileForReading(const Common::String &name);
 	uint readFromSaveFile(uint8 *data, uint size);
 
+	void setShakePos(int pos) { _system->setShakePos(pos); }
+
 private:
 
 	void keyPressed(uint16 ascii);
@@ -103,11 +105,11 @@ private:
 	Common::RandomSource			_rnd;
 	Common::Point					_mouse;
 	unsigned						_mouseState;
-	
+
 	Common::File _file;
 	Common::OutSaveFile *_outSaveFile;
 	Common::InSaveFile *_inSaveFile;
-	
+
 	dreamgen::Context _context;
 };