From c1807138fbb9dca4ff2d59f8c5ed39385716c6a0 Mon Sep 17 00:00:00 2001
From: Alyssa Milburn
Date: Sat, 20 Aug 2011 00:11:30 +0200
Subject: CGE: Cleanup of snail.cpp.

---
 engines/cge/snail.cpp | 1025 ++++++++++++++++++++++++-------------------------
 engines/cge/snail.h   |    1 -
 2 files changed, 508 insertions(+), 518 deletions(-)

(limited to 'engines')

diff --git a/engines/cge/snail.cpp b/engines/cge/snail.cpp
index ea8e480b35..ef766b9a4e 100644
--- a/engines/cge/snail.cpp
+++ b/engines/cge/snail.cpp
@@ -40,7 +40,7 @@ void CGEEngine::snGame(Sprite *spr, int num) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snGame(spr, %d)", num);
 
 	switch (num) {
-	case 1 : {
+	case 1: {
 		static Sprite *dup[3] = { NULL, NULL, NULL };
 		int buref = 0;
 		int Stage = 0;
@@ -125,10 +125,9 @@ void CGEEngine::snGame(Sprite *spr, int num) {
 			_snail->addCom(kSnSay, buref, 16008, NULL);            // zgadnij!
 			_game = true;
 		}
-	}
-	break;
-	//--------------------------------------------------------------------
-	case 2 : {
+		}
+		break;
+	case 2:
 		if (_sprTv == NULL) {
 			_sprTv = _vga->_showQ->locate(20700);
 			_sprK1 = _vga->_showQ->locate(20701);
@@ -139,105 +138,108 @@ void CGEEngine::snGame(Sprite *spr, int num) {
 		if (!_game) { // init
 			_snail->addCom(kSnGame, 20002, 2, NULL);
 			_game = true;
-		} else { // cont
-			_sprK1->step(newRandom(6));
-			_sprK2->step(newRandom(6));
-			_sprK3->step(newRandom(6));
-			///--------------------
-			if (spr->_ref == 1 && _keyboard->_key[kKeyAlt]) {
-				_sprK1->step(5);
-				_sprK2->step(5);
-				_sprK3->step(5);
-			}
-			///--------------------
-			_snail->addCom(kSnSetZ, 20700, 0, NULL);
-			bool hit = (_sprK1->_seqPtr + _sprK2->_seqPtr + _sprK3->_seqPtr == 15);
-			if (hit) {
-				if (spr->_ref == 1) {
-					_snail->addCom(kSnSay,       1, 20003, NULL);       // hura!
-					_snail->addCom(kSnSeq,   20011,     2, NULL);       // kamera won
-					_snail->addCom(kSnSend,  20701,    -1, NULL);       // k1 won
-					_snail->addCom(kSnSend,  20702,    -1, NULL);       // k2 won
-					_snail->addCom(kSnSend,  20703,    -1, NULL);       // k3 won
-					_snail->addCom(kSnSend,  20700,    -1, NULL);       // tv won
-					_snail->addCom(kSnKeep,  20007,     0, NULL);       // do kieszeni
-					_snail->addCom(kSnSend,  20006,    20, NULL);       // bilon
-					_snail->addCom(kSnSound, 20006, 20002, NULL);      // bilon!
-					_snail->addCom(kSnSay,   20002, 20004, NULL);
-					_snail->addCom(kSnSend,  20010,    20, NULL);       // papier
-					_snail->addCom(kSnSound, 20010, 20003, NULL);      // papier!
-					_snail->addCom(kSnSay,   20001, 20005, NULL);
-					_game = false;
-					return;
-				} else
-					_sprK3->step(newRandom(5));
-			}
-			if (_gameCase2Cpt < 100) {
-				switch (_gameCase2Cpt) {
-				case 15 :
-					_snail->addCom(kSnSay, 20003, 20021, NULL);
-					break;
-				case 30 :
-				case 45 :
-				case 60 :
-				case 75 :
-					_snail->addCom(kSnSay, 20003, 20022, NULL);
-					break;
-				}
-				_gameCase2Cpt++;
-			}
-			switch (spr->_ref) {
-			case     1 :
-				_snail->addCom(kSnSay,   20001, 20011, NULL);         // zapro
-				_snail->addCom(kSnSeq,   20001,     1, NULL);             // rzuŤ
-				_snail->addCom(kSnWait,  20001,     1, NULL);             // czekaj
-				_snail->addCom(kSnSetZ,  20700,     2, NULL);             // skryj k
-				_snail->addCom(kSnHide,  20007,     1, NULL);             // skryj k
-				_snail->addCom(kSnWait,  20001,    16, NULL);            // czekaj
-				_snail->addCom(kSnSeq,   20007,     1, NULL);             // lec†
-				_snail->addCom(kSnHide,  20007,     0, NULL);             // poka§
-				_snail->addCom(kSnSound, 20007, 20001, NULL);        // grzech
-				_snail->addCom(kSnWait,  20007,    -1, NULL);            // koniec
-				_snail->addCom(kSnGame,  20001,     2, NULL);             // again!
-				break;
-			case 20001:
-				_snail->addCom(kSnSay,   20002, 20012, NULL);          // zapro
-				_snail->addCom(kSnSeq,   20002,     1, NULL);              // rzuŤ
-				_snail->addCom(kSnWait,  20002,     3, NULL);             // czekaj
-				_snail->addCom(kSnSetZ,  20700,     2, NULL);             // skryj k
-				_snail->addCom(kSnHide,  20007,     1, NULL);             // skryj k
-				_snail->addCom(kSnWait,  20002,    10, NULL);            // czekaj
-				_snail->addCom(kSnSeq,   20007,     2, NULL);              // lec†
-				_snail->addCom(kSnHide,  20007,     0, NULL);             // poka§
-				_snail->addCom(kSnSound, 20007, 20001, NULL);        // grzech
-				_snail->addCom(kSnWait,  20007,    -1, NULL);            // koniec
-				_snail->addCom(kSnGame,  20002,     2, NULL);             // again!
+			break;
+		}
+
+		// cont
+		_sprK1->step(newRandom(6));
+		_sprK2->step(newRandom(6));
+		_sprK3->step(newRandom(6));
+
+		if (spr->_ref == 1 && _keyboard->_key[kKeyAlt]) {
+			_sprK1->step(5);
+			_sprK2->step(5);
+			_sprK3->step(5);
+		}
+
+		_snail->addCom(kSnSetZ, 20700, 0, NULL);
+		bool hit = (_sprK1->_seqPtr + _sprK2->_seqPtr + _sprK3->_seqPtr == 15);
+		if (hit) {
+			if (spr->_ref == 1) {
+				_snail->addCom(kSnSay,       1, 20003, NULL);       // hura!
+				_snail->addCom(kSnSeq,   20011,     2, NULL);       // kamera won
+				_snail->addCom(kSnSend,  20701,    -1, NULL);       // k1 won
+				_snail->addCom(kSnSend,  20702,    -1, NULL);       // k2 won
+				_snail->addCom(kSnSend,  20703,    -1, NULL);       // k3 won
+				_snail->addCom(kSnSend,  20700,    -1, NULL);       // tv won
+				_snail->addCom(kSnKeep,  20007,     0, NULL);       // do kieszeni
+				_snail->addCom(kSnSend,  20006,    20, NULL);       // bilon
+				_snail->addCom(kSnSound, 20006, 20002, NULL);      // bilon!
+				_snail->addCom(kSnSay,   20002, 20004, NULL);
+				_snail->addCom(kSnSend,  20010,    20, NULL);       // papier
+				_snail->addCom(kSnSound, 20010, 20003, NULL);      // papier!
+				_snail->addCom(kSnSay,   20001, 20005, NULL);
+				_game = false;
+				return;
+			} else
+				_sprK3->step(newRandom(5));
+		}
+
+		if (_gameCase2Cpt < 100) {
+			switch (_gameCase2Cpt) {
+			case 15:
+				_snail->addCom(kSnSay, 20003, 20021, NULL);
 				break;
-			case 20002:
-				_snail->addCom(kSnSay,   20002, 20010, NULL);          // zapro
-				_snail->addCom(kSnWalk,  20005,    -1, NULL);            // do stol
-				_snail->addCom(kSnWait,      1,    -1, NULL);                // stoi
-				_snail->addCom(kSnCover,     1, 20101, NULL);            // grasol
-				_snail->addCom(kSnSeq,   20101,     1, NULL);              // rzuŤ
-				_snail->addCom(kSnWait,  20101,     5, NULL);             // czekaj
-				_snail->addCom(kSnSetZ,  20700,     2, NULL);             // skryj k
-				_snail->addCom(kSnHide,  20007,     1, NULL);             // skryj k
-				_snail->addCom(kSnWait,  20101,    15, NULL);            // czekaj
-				_snail->addCom(kSnSeq,   20007,     1, NULL);              // lec†
-				_snail->addCom(kSnHide,  20007,     0, NULL);             // poka§
-				_snail->addCom(kSnSound, 20007, 20001, NULL);        // grzech
-				_snail->addCom(kSnWait,  20101,    -1, NULL);            // koniec
-				_snail->addCom(kSnUncover,   1, 20101, NULL);          // SDS
-				_snail->addCom(kSnGame,      1,     2, NULL);                 // again!
+			case 30:
+			case 45:
+			case 60:
+			case 75:
+				_snail->addCom(kSnSay, 20003, 20022, NULL);
 				break;
 			}
+			_gameCase2Cpt++;
+		}
+
+		switch (spr->_ref) {
+		case 1:
+			_snail->addCom(kSnSay,   20001, 20011, NULL);         // zapro
+			_snail->addCom(kSnSeq,   20001,     1, NULL);             // rzuŤ
+			_snail->addCom(kSnWait,  20001,     1, NULL);             // czekaj
+			_snail->addCom(kSnSetZ,  20700,     2, NULL);             // skryj k
+			_snail->addCom(kSnHide,  20007,     1, NULL);             // skryj k
+			_snail->addCom(kSnWait,  20001,    16, NULL);            // czekaj
+			_snail->addCom(kSnSeq,   20007,     1, NULL);             // lec†
+			_snail->addCom(kSnHide,  20007,     0, NULL);             // poka§
+			_snail->addCom(kSnSound, 20007, 20001, NULL);        // grzech
+			_snail->addCom(kSnWait,  20007,    -1, NULL);            // koniec
+			_snail->addCom(kSnGame,  20001,     2, NULL);             // again!
+			break;
+
+		case 20001:
+			_snail->addCom(kSnSay,   20002, 20012, NULL);          // zapro
+			_snail->addCom(kSnSeq,   20002,     1, NULL);              // rzuŤ
+			_snail->addCom(kSnWait,  20002,     3, NULL);             // czekaj
+			_snail->addCom(kSnSetZ,  20700,     2, NULL);             // skryj k
+			_snail->addCom(kSnHide,  20007,     1, NULL);             // skryj k
+			_snail->addCom(kSnWait,  20002,    10, NULL);            // czekaj
+			_snail->addCom(kSnSeq,   20007,     2, NULL);              // lec†
+			_snail->addCom(kSnHide,  20007,     0, NULL);             // poka§
+			_snail->addCom(kSnSound, 20007, 20001, NULL);        // grzech
+			_snail->addCom(kSnWait,  20007,    -1, NULL);            // koniec
+			_snail->addCom(kSnGame,  20002,     2, NULL);             // again!
+			break;
+
+		case 20002:
+			_snail->addCom(kSnSay,   20002, 20010, NULL);          // zapro
+			_snail->addCom(kSnWalk,  20005,    -1, NULL);            // do stol
+			_snail->addCom(kSnWait,      1,    -1, NULL);                // stoi
+			_snail->addCom(kSnCover,     1, 20101, NULL);            // grasol
+			_snail->addCom(kSnSeq,   20101,     1, NULL);              // rzuŤ
+			_snail->addCom(kSnWait,  20101,     5, NULL);             // czekaj
+			_snail->addCom(kSnSetZ,  20700,     2, NULL);             // skryj k
+			_snail->addCom(kSnHide,  20007,     1, NULL);             // skryj k
+			_snail->addCom(kSnWait,  20101,    15, NULL);            // czekaj
+			_snail->addCom(kSnSeq,   20007,     1, NULL);              // lec†
+			_snail->addCom(kSnHide,  20007,     0, NULL);             // poka§
+			_snail->addCom(kSnSound, 20007, 20001, NULL);        // grzech
+			_snail->addCom(kSnWait,  20101,    -1, NULL);            // koniec
+			_snail->addCom(kSnUncover,   1, 20101, NULL);          // SDS
+			_snail->addCom(kSnGame,      1,     2, NULL);                 // again!
+			break;
 		}
-	}
-	break;
 	}
 }
 
-
 void CGEEngine::expandSprite(Sprite *spr) {
 	debugC(5, kCGEDebugEngine, "CGEEngine::expandSprite(spr)");
 
@@ -245,7 +247,6 @@ void CGEEngine::expandSprite(Sprite *spr) {
 		_vga->_showQ->insert(_vga->_spareQ->remove(spr));
 }
 
-
 void CGEEngine::contractSprite(Sprite *spr) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::contractSprite(spr)");
 
@@ -257,12 +258,11 @@ int CGEEngine::findPocket(Sprite *spr) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::findPocket(spr)");
 
 	for (int i = 0; i < kPocketNX; i++)
-	if (_pocket[i] == spr)
-		return i;
+		if (_pocket[i] == spr)
+			return i;
 	return -1;
 }
 
-
 void CGEEngine::selectPocket(int n) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::selectPocket(%d)", n);
 
@@ -309,76 +309,77 @@ void CGEEngine::snGhost(Bitmap *bmp) {
 void CGEEngine::feedSnail(Sprite *spr, SnList snq) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::feedSnail(spr, snq)");
 
-	if (spr)
-		if (spr->active()) {
-			uint8 ptr = (snq == kTake) ? spr->_takePtr : spr->_nearPtr;
-
-			if (ptr != NO_PTR) {
-				Snail::Com *comtab = spr->snList(snq);
-				Snail::Com *c = comtab + ptr;
-
-				if (findPocket(NULL) < 0) {                 // no empty pockets?
-					Snail::Com *p;
-					for (p = c; p->_com != kSnNext; p++) {     // find KEEP command
-						if (p->_com == kSnKeep) {
-							pocFul();
-							return;
-						}
-						if (p->_ptr)
-							break;
-					}
-				}
-				while (true) {
-					if (c->_com == kSnTalk) {
-						if ((_snail->_talkEnable = (c->_val != 0)) == false)
-							killText();
-					}
-					if (c->_com == kSnNext) {
-						Sprite *s = (c->_ref < 0) ? spr : locate(c->_ref);
-						if (s) {
-							uint8 *idx = (snq == kTake) ? &s->_takePtr : &s->_nearPtr;
-							if (*idx != NO_PTR) {
-								int v;
-								switch (c->_val) {
-								case -1 :
-									v = c - comtab + 1;
-									break;
-								case -2 :
-									v = c - comtab;
-									break;
-								case -3 :
-									v = -1;
-									break;
-								default :
-									v = c->_val;
-									break;
-								}
-								if (v >= 0)
-									*idx = v;
-							}
-						}
-						if (s == spr)
-							break;
-					}
-					if (c->_com == kSnIf) {
-						Sprite *s = (c->_ref < 0) ? spr : locate(c->_ref);
-						if (s) { // sprite extsts
-							if (! s->seqTest(-1))
-								c = comtab + c->_val;                // not parked
-							else
-								++c;
-						} else
-							++c;
-					} else {
-						_snail->addCom(c->_com, c->_ref, c->_val, spr);
-						if (c->_ptr)
-							break;
-						else
-							c++;
+	if (!spr || !spr->active())
+		return;
+
+	uint8 ptr = (snq == kTake) ? spr->_takePtr : spr->_nearPtr;
+
+	if (ptr == NO_PTR)
+		return;
+
+	Snail::Com *comtab = spr->snList(snq);
+	Snail::Com *c = comtab + ptr;
+
+	if (findPocket(NULL) < 0) {                 // no empty pockets?
+		Snail::Com *p;
+		for (p = c; p->_com != kSnNext; p++) {     // find KEEP command
+			if (p->_com == kSnKeep) {
+				pocFul();
+				return;
+			}
+			if (p->_ptr)
+				break;
+		}
+	}
+	while (true) {
+		if (c->_com == kSnTalk) {
+			if ((_snail->_talkEnable = (c->_val != 0)) == false)
+				killText();
+		}
+		if (c->_com == kSnNext) {
+			Sprite *s = (c->_ref < 0) ? spr : locate(c->_ref);
+			if (s) {
+				uint8 *idx = (snq == kTake) ? &s->_takePtr : &s->_nearPtr;
+				if (*idx != NO_PTR) {
+					int v;
+					switch (c->_val) {
+					case -1 :
+						v = c - comtab + 1;
+						break;
+					case -2 :
+						v = c - comtab;
+						break;
+					case -3 :
+						v = -1;
+						break;
+					default :
+						v = c->_val;
+						break;
 					}
+					if (v >= 0)
+						*idx = v;
 				}
 			}
+			if (s == spr)
+				break;
+		}
+		if (c->_com == kSnIf) {
+			Sprite *s = (c->_ref < 0) ? spr : locate(c->_ref);
+			if (s) { // sprite extsts
+				if (! s->seqTest(-1))
+					c = comtab + c->_val;                // not parked
+				else
+					++c;
+			} else
+				++c;
+		} else {
+			_snail->addCom(c->_com, c->_ref, c->_val, spr);
+			if (c->_ptr)
+				break;
+			else
+				c++;
 		}
+	}
 }
 
 const char *Snail::_comText[] = {
@@ -395,7 +396,6 @@ const char *Snail::_comText[] = {
 	"MOUSE",  "SOUND",  "COUNT",   NULL
 };
 
-
 Snail::Snail(CGEEngine *vm, bool turbo)
 	: _turbo(turbo), _busy(false), _textDelay(false),
 	  _timerExpiry(0), _talkEnable(true),
@@ -490,16 +490,15 @@ void CGEEngine::snRTNext(Sprite *spr, int p) {
 void CGEEngine::snZTrim(Sprite *spr) {
 	debugC(4, kCGEDebugEngine, "CGEEngine::snZTrim(spr)");
 
-	if (spr)
-		if (spr->active()) {
-			Sprite *s;
-			s = (spr->_flags._shad) ? spr->_prev : NULL;
-			_vga->_showQ->insert(_vga->_showQ->remove(spr));
-			if (s) {
-				s->_z = spr->_z;
-				_vga->_showQ->insert(_vga->_showQ->remove(s), spr);
-			}
-		}
+	if (!spr || !spr->active())
+		return;
+
+	Sprite *s = (spr->_flags._shad) ? spr->_prev : NULL;
+	_vga->_showQ->insert(_vga->_showQ->remove(spr));
+	if (s) {
+		s->_z = spr->_z;
+		_vga->_showQ->insert(_vga->_showQ->remove(s), spr);
+	}
 }
 
 void CGEEngine::snHide(Sprite *spr, int val) {
@@ -547,30 +546,31 @@ void CGEEngine::snRSeq(Sprite *spr, int val) {
 void CGEEngine::snSend(Sprite *spr, int val) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snSend(spr, %d)", val);
 
-	if (spr) {
-		int was = spr->_cave;
-		bool was1 = (was == 0 || was == _now);
-		bool val1 = (val == 0 || val == _now);
-		spr->_cave = val;
-		if (val1 != was1) {
-			if (was1) {
-				if (spr->_flags._kept) {
-					int n = findPocket(spr);
-					if (n >= 0)
-						_pocket[n] = NULL;
-				}
-				hide1(spr);
-				contractSprite(spr);
-				spr->_flags._slav = false;
-			} else {
-				if (spr->_ref % 1000 == 0)
-					Bitmap::_pal = Vga::_sysPal;
-				if (spr->_flags._back)
-					spr->backShow(true);
-				else
-					expandSprite(spr);
-				Bitmap::_pal = NULL;
+	if (!spr)
+		return;
+
+	int was = spr->_cave;
+	bool was1 = (was == 0 || was == _now);
+	bool val1 = (val == 0 || val == _now);
+	spr->_cave = val;
+	if (val1 != was1) {
+		if (was1) {
+			if (spr->_flags._kept) {
+				int n = findPocket(spr);
+				if (n >= 0)
+					_pocket[n] = NULL;
 			}
+			hide1(spr);
+			contractSprite(spr);
+			spr->_flags._slav = false;
+		} else {
+			if (spr->_ref % 1000 == 0)
+				Bitmap::_pal = Vga::_sysPal;
+			if (spr->_flags._back)
+				spr->backShow(true);
+			else
+				expandSprite(spr);
+			Bitmap::_pal = NULL;
 		}
 	}
 }
@@ -579,77 +579,77 @@ void CGEEngine::snSwap(Sprite *spr, int xref) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snSwap(spr, %d)", xref);
 
 	Sprite *xspr = locate(xref);
-	if (spr && xspr) {
-		int was = spr->_cave;
-		int xwas = xspr->_cave;
-		bool was1 = (was == 0 || was == _now);
-		bool xwas1 = (xwas == 0 || xwas == _now);
-
-		swap(spr->_cave, xspr->_cave);
-		swap(spr->_x, xspr->_x);
-		swap(spr->_y, xspr->_y);
-		swap(spr->_z, xspr->_z);
-		if (spr->_flags._kept) {
-			int n = findPocket(spr);
-			if (n >= 0)
-				_pocket[n] = xspr;
-			xspr->_flags._kept = true;
-			xspr->_flags._port = false;
-		}
-		if (xwas1 != was1) {
-			if (was1) {
-				hide1(spr);
-				contractSprite(spr);
-			} else
-				expandSprite(spr);
-			if (xwas1) {
-				hide1(xspr);
-				contractSprite(xspr);
-			} else
-				expandSprite(xspr);
-		}
+	if (!spr || !xspr)
+		return;
+
+	int was = spr->_cave;
+	int xwas = xspr->_cave;
+	bool was1 = (was == 0 || was == _now);
+	bool xwas1 = (xwas == 0 || xwas == _now);
+
+	swap(spr->_cave, xspr->_cave);
+	swap(spr->_x, xspr->_x);
+	swap(spr->_y, xspr->_y);
+	swap(spr->_z, xspr->_z);
+	if (spr->_flags._kept) {
+		int n = findPocket(spr);
+		if (n >= 0)
+			_pocket[n] = xspr;
+		xspr->_flags._kept = true;
+		xspr->_flags._port = false;
+	}
+	if (xwas1 != was1) {
+		if (was1) {
+			hide1(spr);
+			contractSprite(spr);
+		} else
+			expandSprite(spr);
+		if (xwas1) {
+			hide1(xspr);
+			contractSprite(xspr);
+		} else
+			expandSprite(xspr);
 	}
 }
 
-
 void CGEEngine::snCover(Sprite *spr, int xref) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snCover(spr, %d)", xref);
 
 	Sprite *xspr = locate(xref);
-	if (spr && xspr) {
-		spr->_flags._hide = true;
-		xspr->_z = spr->_z;
-		xspr->_cave = spr->_cave;
-		xspr->gotoxy(spr->_x, spr->_y);
-		expandSprite(xspr);
-		if ((xspr->_flags._shad = spr->_flags._shad) == 1) {
-			_vga->_showQ->insert(_vga->_showQ->remove(spr->_prev), xspr);
-			spr->_flags._shad = false;
-		}
-		feedSnail(xspr, kNear);
+	if (!spr || !xspr)
+		return;
+
+	spr->_flags._hide = true;
+	xspr->_z = spr->_z;
+	xspr->_cave = spr->_cave;
+	xspr->gotoxy(spr->_x, spr->_y);
+	expandSprite(xspr);
+	if ((xspr->_flags._shad = spr->_flags._shad) == 1) {
+		_vga->_showQ->insert(_vga->_showQ->remove(spr->_prev), xspr);
+		spr->_flags._shad = false;
 	}
+	feedSnail(xspr, kNear);
 }
 
-
 void CGEEngine::snUncover(Sprite *spr, Sprite *xspr) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snUncover(spr, xspr)");
 
-	if (spr && xspr) {
-		spr->_flags._hide = false;
-		spr->_cave = xspr->_cave;
-		spr->gotoxy(xspr->_x, xspr->_y);
-		if ((spr->_flags._shad = xspr->_flags._shad) == 1) {
-			_vga->_showQ->insert(_vga->_showQ->remove(xspr->_prev), spr);
-			xspr->_flags._shad = false;
-		}
-		spr->_z = xspr->_z;
-		snSend(xspr, -1);
-		if (spr->_time == 0)
-			spr->_time++;
+	if (!spr || !xspr)
+		return;
+
+	spr->_flags._hide = false;
+	spr->_cave = xspr->_cave;
+	spr->gotoxy(xspr->_x, xspr->_y);
+	if ((spr->_flags._shad = xspr->_flags._shad) == 1) {
+		_vga->_showQ->insert(_vga->_showQ->remove(xspr->_prev), spr);
+		xspr->_flags._shad = false;
 	}
+	spr->_z = xspr->_z;
+	snSend(xspr, -1);
+	if (spr->_time == 0)
+		spr->_time++;
 }
 
-
 void CGEEngine::snSetX0(int cav, int x0) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snSetX0(%d, %d)", cav, x0);
 
@@ -683,7 +683,6 @@ void CGEEngine::snRelY(Sprite *spr, int y) {
 		spr->gotoxy(spr->_x, _hero->_y + y);
 }
 
-
 void CGEEngine::snRelZ(Sprite *spr, int z) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snRelZ(spr, %d)", z);
 
@@ -693,7 +692,6 @@ void CGEEngine::snRelZ(Sprite *spr, int z) {
 	}
 }
 
-
 void CGEEngine::snSetX(Sprite *spr, int x) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snSetX(spr, %d)", x);
 
@@ -701,7 +699,6 @@ void CGEEngine::snSetX(Sprite *spr, int x) {
 		spr->gotoxy(x, spr->_y);
 }
 
-
 void CGEEngine::snSetY(Sprite *spr, int y) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snSetY(spr, %d)", y);
 
@@ -709,7 +706,6 @@ void CGEEngine::snSetY(Sprite *spr, int y) {
 		spr->gotoxy(spr->_x, y);
 }
 
-
 void CGEEngine::snSetZ(Sprite *spr, int z) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snSetZ(spr, %d)", z);
 
@@ -720,7 +716,6 @@ void CGEEngine::snSetZ(Sprite *spr, int z) {
 	}
 }
 
-
 void CGEEngine::snSlave(Sprite *spr, int ref) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snSlave(spr, %d)", ref);
 
@@ -735,7 +730,6 @@ void CGEEngine::snSlave(Sprite *spr, int ref) {
 	}
 }
 
-
 void CGEEngine::snTrans(Sprite *spr, int trans) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snTrans(spr, %d)", trans);
 
@@ -753,30 +747,30 @@ void CGEEngine::snPort(Sprite *spr, int port) {
 void CGEEngine::snKill(Sprite *spr) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snKill(spr)");
 
-	if (spr) {
-		if (spr->_flags._kept) {
-			int n = findPocket(spr);
-			if (n >= 0)
-				_pocket[n] = NULL;
-		}
-		Sprite *nx = spr->_next;
-		hide1(spr);
-		_vga->_showQ->remove(spr);
-		_eventManager->clearEvent(spr);
-		if (spr->_flags._kill)
-			delete spr;
-		else {
-			spr->_cave = -1;
-			_vga->_spareQ->append(spr);
-		}
-		if (nx) {
-			if (nx->_flags._slav)
-				snKill(nx);
-		}
+	if (!spr)
+		return;
+
+	if (spr->_flags._kept) {
+		int n = findPocket(spr);
+		if (n >= 0)
+			_pocket[n] = NULL;
+	}
+	Sprite *nx = spr->_next;
+	hide1(spr);
+	_vga->_showQ->remove(spr);
+	_eventManager->clearEvent(spr);
+	if (spr->_flags._kill) {
+		delete spr;
+	} else {
+		spr->_cave = -1;
+		_vga->_spareQ->append(spr);
+	}
+	if (nx) {
+		if (nx->_flags._slav)
+			snKill(nx);
 	}
 }
 
-
 void CGEEngine::snSound(Sprite *spr, int wav, int cnt) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snSound(spr, %d, %d)", wav, cnt);
 
@@ -786,7 +780,6 @@ void CGEEngine::snSound(Sprite *spr, int wav, int cnt) {
 		_sound->play((*_fx)[wav], (spr) ? ((spr->_x + spr->_w / 2) / (kScrWidth / 16)) : 8, cnt);
 }
 
-
 void CGEEngine::snKeep(Sprite *spr, int stp) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snKeep(spr, %d)", stp);
 
@@ -846,7 +839,6 @@ void CGEEngine::snLevel(Sprite *spr, int lev) {
 		spr->_flags._hide = false;
 }
 
-
 void CGEEngine::snFlag(int indx, bool v) {
 	_flag[indx] = v;
 }
@@ -881,7 +873,6 @@ void CGEEngine::snFlash(bool on) {
 	_dark = false;
 }
 
-
 void CGEEngine::snLight(bool in) {
 	debugC(1, kCGEDebugEngine, "CGEEngine::snLight(%s)", in ? "true" : "false");
 
@@ -889,7 +880,7 @@ void CGEEngine::snLight(bool in) {
 		_vga->sunrise(Vga::_sysPal);
 	else
 		_vga->sunset();
-	_dark = ! in;
+	_dark = !in;
 }
 
 void CGEEngine::snBarrier(int cav, int bar, bool horz) {
@@ -925,254 +916,254 @@ void CGEEngine::snMouse(bool on) {
 		_mouse->off();
 }
 
-
 void Snail::runCom() {
 	static int count = 1;
-	if (!_busy) {
-		_busy = true;
-		uint8 tmpHead = _head;
-		while (_tail != tmpHead) {
-			Com *snc = &_snList[_tail];
-
-			if (!_turbo) { // only for the slower one
-				if (_timerExpiry) {
-					// Delay in progress
-					if (_timerExpiry > g_system->getMillis())
-						// Delay not yet ended
-						break;
 
-					// Delay is finished
-					_timerExpiry = 0;
-				} else {
-					if (_textDelay) {
-						killText();
-						_textDelay = false;
-					}
-				}
-				if (_talk && snc->_com != kSnPause)
+	if (_busy)
+		return;
+
+	_busy = true;
+	uint8 tmpHead = _head;
+	while (_tail != tmpHead) {
+		Com *snc = &_snList[_tail];
+
+		if (!_turbo) { // only for the slower one
+			if (_timerExpiry) {
+				// Delay in progress
+				if (_timerExpiry > g_system->getMillis())
+					// Delay not yet ended
 					break;
-			}
 
-			Sprite *spr = ((snc->_ref >= 0) ? locate(snc->_ref) : ((Sprite *) snc->_ptr));
-			switch (snc->_com) {
-			case kSnLabel:
-				break;
-			case kSnPause    :
-				_timerExpiry = g_system->getMillis() + snc->_val * kSnailFrameDelay;
-				if (_talk)
-					_textDelay = true;
-				break;
-			case kSnWait:
-				if (spr) {
-					if (spr->seqTest(snc->_val) &&
-					        (snc->_val >= 0 || spr != _hero || _hero->_tracePtr < 0)) {
-						_timerExpiry = g_system->getMillis() + spr->_time * kSnailFrameDelay;
-					} else
-						goto xit;
-				}
-				break;
-			case kSnLevel:
-				_vm->snLevel(spr, snc->_val);
-				break;
-			case kSnHide:
-				_vm->snHide(spr, snc->_val);
-				break;
-			case kSnSay:
-				if (spr && _talkEnable) {
-					if (spr == _hero && spr->seqTest(-1))
-						spr->step(kSeqHTalk);
-					_text->say(_text->getText(snc->_val), spr);
-					_sys->_funDel = kHeroFun0;
-				}
-				break;
-			case kSnInf:
-				if (_talkEnable) {
-					_vm->inf(_text->getText(snc->_val));
-					_sys->_funDel = kHeroFun0;
-				}
-				break;
-			case kSnTime:
-				if (spr && _talkEnable) {
-					if (spr == _hero && spr->seqTest(-1))
-						spr->step(kSeqHTalk);
-					_text->sayTime(spr);
+				// Delay is finished
+				_timerExpiry = 0;
+			} else {
+				if (_textDelay) {
+					killText();
+					_textDelay = false;
 				}
+			}
+			if (_talk && snc->_com != kSnPause)
 				break;
-			case kSnCave:
-				_vm->switchCave(snc->_val);
-				break;
-			case kSnKill:
-				_vm->snKill(spr);
-				break;
-			case kSnSeq:
-				_vm->snSeq(spr, snc->_val);
-				break;
-			case kSnRSeq:
-				_vm->snRSeq(spr, snc->_val);
-				break;
-			case kSnSend:
-				_vm->snSend(spr, snc->_val);
-				break;
-			case kSnSwap:
-				_vm->snSwap(spr, snc->_val);
-				break;
-			case kSnCover:
-				_vm->snCover(spr, snc->_val);
-				break;
-			case kSnUncover:
-				_vm->snUncover(spr, (snc->_val >= 0) ? locate(snc->_val) : ((Sprite *) snc->_ptr));
-				break;
-			case kSnKeep:
-				_vm->snKeep(spr, snc->_val);
-				break;
-			case kSnGive:
-				_vm->snGive(spr, snc->_val);
-				break;
-			case kSnGame:
-				_vm->snGame(spr, snc->_val);
-				break;
-			case kSnSetX0:
-				_vm->snSetX0(snc->_ref, snc->_val);
-				break;
-			case kSnSetY0:
-				_vm->snSetY0(snc->_ref, snc->_val);
-				break;
-			case kSnSetXY:
-				_vm->snSetXY(spr, snc->_val);
-				break;
-			case kSnRelX:
-				_vm->snRelX(spr, snc->_val);
-				break;
-			case kSnRelY:
-				_vm->snRelY(spr, snc->_val);
-				break;
-			case kSnRelZ:
-				_vm->snRelZ(spr, snc->_val);
-				break;
-			case kSnSetX:
-				_vm->snSetX(spr, snc->_val);
-				break;
-			case kSnSetY:
-				_vm->snSetY(spr, snc->_val);
-				break;
-			case kSnSetZ:
-				_vm->snSetZ(spr, snc->_val);
-				break;
-			case kSnSlave:
-				_vm->snSlave(spr, snc->_val);
-				break;
-			case kSnTrans:
-				_vm->snTrans(spr, snc->_val);
-				break;
-			case kSnPort:
-				_vm->snPort(spr, snc->_val);
-				break;
-			case kSnNext:
-			case kSnIf:
-			case kSnTalk:
-				break;
-			case kSnMouse:
-				_vm->snMouse(snc->_val != 0);
-				break;
-			case kSnNNext:
-				_vm->snNNext(spr, snc->_val);
-				break;
-			case kSnTNext:
-				_vm->snTNext(spr, snc->_val);
-				break;
-			case kSnRNNext:
-				_vm->snRNNext(spr, snc->_val);
-				break;
-			case kSnRTNext:
-				_vm->snRTNext(spr, snc->_val);
-				break;
-			case kSnRMNear:
-				_vm->snRmNear(spr);
-				break;
-			case kSnRmTake:
-				_vm->snRmTake(spr);
-				break;
-			case kSnFlag:
-				_vm->snFlag(snc->_ref & 3, snc->_val != 0);
-				break;
-			case kSnSetRef:
-				_vm->snSetRef(spr, snc->_val);
-				break;
-			case kSnBackPt:
-				_vm->snBackPt(spr, snc->_val);
-				break;
-			case kSnFlash:
-				_vm->snFlash(snc->_val != 0);
-				break;
-			case kSnLight:
-				_vm->snLight(snc->_val != 0);
-				break;
-			case kSnSetHBarrier:
-				_vm->snBarrier(snc->_ref, snc->_val, true);
-				break;
-			case kSnSetVBarrier:
-				_vm->snBarrier(snc->_ref, snc->_val, false);
-				break;
-			case kSnWalk:
-				_vm->snWalk(spr, snc->_ref, snc->_val);
-				break;
-			case kSnReach:
-				_vm->snReach(spr, snc->_val);
-				break;
-			case kSnSound:
-				_vm->snSound(spr, snc->_val, count);
-				count = 1;
-				break;
-			case kSnCount:
-				count = snc->_val;
+		}
+
+		Sprite *spr = ((snc->_ref >= 0) ? locate(snc->_ref) : ((Sprite *) snc->_ptr));
+		switch (snc->_com) {
+		case kSnLabel:
+			break;
+		case kSnPause    :
+			_timerExpiry = g_system->getMillis() + snc->_val * kSnailFrameDelay;
+			if (_talk)
+				_textDelay = true;
+			break;
+		case kSnWait:
+			if (spr) {
+				if (spr->seqTest(snc->_val) &&
+					(snc->_val >= 0 || spr != _hero || _hero->_tracePtr < 0)) {
+					_timerExpiry = g_system->getMillis() + spr->_time * kSnailFrameDelay;
+				} else
+					goto xit;
+			}
+			break;
+		case kSnLevel:
+			_vm->snLevel(spr, snc->_val);
+			break;
+		case kSnHide:
+			_vm->snHide(spr, snc->_val);
+			break;
+		case kSnSay:
+			if (spr && _talkEnable) {
+				if (spr == _hero && spr->seqTest(-1))
+					spr->step(kSeqHTalk);
+				_text->say(_text->getText(snc->_val), spr);
+				_sys->_funDel = kHeroFun0;
+			}
+			break;
+		case kSnInf:
+			if (_talkEnable) {
+				_vm->inf(_text->getText(snc->_val));
+				_sys->_funDel = kHeroFun0;
+			}
+			break;
+		case kSnTime:
+			if (spr && _talkEnable) {
+				if (spr == _hero && spr->seqTest(-1))
+					spr->step(kSeqHTalk);
+				_text->sayTime(spr);
+			}
+			break;
+		case kSnCave:
+			_vm->switchCave(snc->_val);
+			break;
+		case kSnKill:
+			_vm->snKill(spr);
+			break;
+		case kSnSeq:
+			_vm->snSeq(spr, snc->_val);
+			break;
+		case kSnRSeq:
+			_vm->snRSeq(spr, snc->_val);
+			break;
+		case kSnSend:
+			_vm->snSend(spr, snc->_val);
+			break;
+		case kSnSwap:
+			_vm->snSwap(spr, snc->_val);
+			break;
+		case kSnCover:
+			_vm->snCover(spr, snc->_val);
+			break;
+		case kSnUncover:
+			_vm->snUncover(spr, (snc->_val >= 0) ? locate(snc->_val) : ((Sprite *) snc->_ptr));
+			break;
+		case kSnKeep:
+			_vm->snKeep(spr, snc->_val);
+			break;
+		case kSnGive:
+			_vm->snGive(spr, snc->_val);
+			break;
+		case kSnGame:
+			_vm->snGame(spr, snc->_val);
+			break;
+		case kSnSetX0:
+			_vm->snSetX0(snc->_ref, snc->_val);
+			break;
+		case kSnSetY0:
+			_vm->snSetY0(snc->_ref, snc->_val);
+			break;
+		case kSnSetXY:
+			_vm->snSetXY(spr, snc->_val);
+			break;
+		case kSnRelX:
+			_vm->snRelX(spr, snc->_val);
+			break;
+		case kSnRelY:
+			_vm->snRelY(spr, snc->_val);
+			break;
+		case kSnRelZ:
+			_vm->snRelZ(spr, snc->_val);
+			break;
+		case kSnSetX:
+			_vm->snSetX(spr, snc->_val);
+			break;
+		case kSnSetY:
+			_vm->snSetY(spr, snc->_val);
+			break;
+		case kSnSetZ:
+			_vm->snSetZ(spr, snc->_val);
+			break;
+		case kSnSlave:
+			_vm->snSlave(spr, snc->_val);
+			break;
+		case kSnTrans:
+			_vm->snTrans(spr, snc->_val);
+			break;
+		case kSnPort:
+			_vm->snPort(spr, snc->_val);
+			break;
+		case kSnNext:
+		case kSnIf:
+		case kSnTalk:
+			break;
+		case kSnMouse:
+			_vm->snMouse(snc->_val != 0);
+			break;
+		case kSnNNext:
+			_vm->snNNext(spr, snc->_val);
+			break;
+		case kSnTNext:
+			_vm->snTNext(spr, snc->_val);
+			break;
+		case kSnRNNext:
+			_vm->snRNNext(spr, snc->_val);
+			break;
+		case kSnRTNext:
+			_vm->snRTNext(spr, snc->_val);
+			break;
+		case kSnRMNear:
+			_vm->snRmNear(spr);
+			break;
+		case kSnRmTake:
+			_vm->snRmTake(spr);
+			break;
+		case kSnFlag:
+			_vm->snFlag(snc->_ref & 3, snc->_val != 0);
+			break;
+		case kSnSetRef:
+			_vm->snSetRef(spr, snc->_val);
+			break;
+		case kSnBackPt:
+			_vm->snBackPt(spr, snc->_val);
+			break;
+		case kSnFlash:
+			_vm->snFlash(snc->_val != 0);
+			break;
+		case kSnLight:
+			_vm->snLight(snc->_val != 0);
+			break;
+		case kSnSetHBarrier:
+			_vm->snBarrier(snc->_ref, snc->_val, true);
+			break;
+		case kSnSetVBarrier:
+			_vm->snBarrier(snc->_ref, snc->_val, false);
+			break;
+		case kSnWalk:
+			_vm->snWalk(spr, snc->_ref, snc->_val);
+			break;
+		case kSnReach:
+			_vm->snReach(spr, snc->_val);
+			break;
+		case kSnSound:
+			_vm->snSound(spr, snc->_val, count);
+			count = 1;
+			break;
+		case kSnCount:
+			count = snc->_val;
+			break;
+		case kSnExec:
+			switch (snc->_cbType) {
+			case kQGame:
+				_vm->qGame();
 				break;
-			case kSnExec:
-				switch (snc->_cbType) {
-				case kQGame:
-					_vm->qGame();
-					break;
-				case kMiniStep:
-					_vm->miniStep(snc->_val);
-					break;
-				case kXCave:
-					_vm->xCave();
-					break;
-				case kSelectSound:
-					warning("TODO: Select sound card");
-					break;
-				case kSnSelect:
-					warning("TODO: Sound card selection");
-					break;
-				case kSndSetVolume:
-					sndSetVolume();
-					break;
-				default:
-					error("Unknown Callback Type in SNEXEC");
-				}
+			case kMiniStep:
+				_vm->miniStep(snc->_val);
 				break;
-			case kSnStep:
-				spr->step();
+			case kXCave:
+				_vm->xCave();
 				break;
-			case kSnZTrim:
-				_vm->snZTrim(spr);
+			case kSelectSound:
+				warning("TODO: Select sound card");
 				break;
-			case kSnGhost:
-				_vm->snGhost((Bitmap *) snc->_ptr);
+			case kSnSelect:
+				warning("TODO: Sound card selection");
 				break;
-			default :
-				warning("Unhandled snc->_com in SNMouse(bool)");
+			case kSndSetVolume:
+				sndSetVolume();
 				break;
+			default:
+				error("Unknown Callback Type in SNEXEC");
 			}
-			_tail++;
-			if (!_turbo)
-				break;
+			break;
+		case kSnStep:
+			spr->step();
+			break;
+		case kSnZTrim:
+			_vm->snZTrim(spr);
+			break;
+		case kSnGhost:
+			_vm->snGhost((Bitmap *) snc->_ptr);
+			break;
+		default:
+			warning("Unhandled snc->_com in SNMouse(bool)");
+			break;
 		}
-xit:
-		_busy = false;
+		_tail++;
+		if (!_turbo)
+			break;
 	}
+xit:
+	_busy = false;
 }
 
-
 bool Snail::idle() {
 	return (_head == _tail);
 }
diff --git a/engines/cge/snail.h b/engines/cge/snail.h
index 2d12963f2c..e478ad95ff 100644
--- a/engines/cge/snail.h
+++ b/engines/cge/snail.h
@@ -80,7 +80,6 @@ private:
 	CGEEngine *_vm;
 };
 
-
 } // End of namespace CGE
 
 #endif
-- 
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