Flattened anonymous union in Zone. Its members have been partially merged.

svn-id: r26181

10 files changed, 113 insertions, 113 deletions

diff --git a/engines/parallaction/animation.cpp b/engines/parallaction/animation.cpp
index edcf47a861..a383e57b7d 100644
--- a/engines/parallaction/animation.cpp
+++ b/engines/parallaction/animation.cpp
@@ -133,8 +133,8 @@ Animation *Parallaction::parseAnimation(Script& script, Node *list, char *name)
 //			if (_ax == -1) exit(-1);
 		}
 		if (!scumm_stricmp(_tokens[0], "position")) {
-			vD0->_zone.pos._position._x = atoi(_tokens[1]);
-			vD0->_zone.pos._position._y = atoi(_tokens[2]);
+			vD0->_zone._left = atoi(_tokens[1]);
+			vD0->_zone._top = atoi(_tokens[2]);
 			vD0->_z = atoi(_tokens[3]);
 		}
 		if (!scumm_stricmp(_tokens[0], "moveto")) {
@@ -145,8 +145,8 @@ Animation *Parallaction::parseAnimation(Script& script, Node *list, char *name)
 		fillBuffers(script, true);
 	}
 
-	vD0->_zone.pos._oldposition._x = -1000;
-	vD0->_zone.pos._oldposition._y = -1000;
+	vD0->_zone._oldposition._x = -1000;
+	vD0->_zone._oldposition._y = -1000;
 
 	vD0->_zone._flags |= 0x1000000;
 
@@ -199,16 +199,16 @@ void jobDisplayAnimations(void *parm, Job *j) {
 			if (v18->_zone._flags & kFlagsNoMasked)
 				_si = 3;
 			else
-				_si = _vm->_gfx->queryMask(v18->_zone.pos._position._y + v18->_cnv._height);
+				_si = _vm->_gfx->queryMask(v18->_zone._top + v18->_cnv._height);
 
-//			printf("jobDisplayAnimations %s, x: %i, y: %i, w: %i, h: %i\n", v18->_zone._name, v18->_zone.pos._position._x, v18->_zone.pos._position._y, v14._width, v14._height);
-			_vm->_gfx->blitCnv(&v14, v18->_zone.pos._position._x, v18->_zone.pos._position._y, _si, Gfx::kBitBack);
+//			printf("jobDisplayAnimations %s, x: %i, y: %i, w: %i, h: %i\n", v18->_zone._name, v18->_zone._left, v18->_zone._top, v14._width, v14._height);
+			_vm->_gfx->blitCnv(&v14, v18->_zone._left, v18->_zone._top, _si, Gfx::kBitBack);
 
 		}
 
 		if (((v18->_zone._flags & kFlagsActive) == 0) && (v18->_zone._flags & kFlagsRemove))   {
 			v18->_zone._flags &= ~kFlagsRemove;
-			v18->_zone.pos._oldposition._x = -1000;
+			v18->_zone._oldposition._x = -1000;
 		}
 
 		if ((v18->_zone._flags & kFlagsActive) && (v18->_zone._flags & kFlagsRemove))	{
@@ -234,12 +234,12 @@ void jobEraseAnimations(void *arg_0, Job *j) {
 		if (((a->_zone._flags & kFlagsActive) == 0) && ((a->_zone._flags & kFlagsRemove) == 0)) continue;
 
 		Common::Rect r(a->_cnv._width, a->_cnv._height);
-		r.moveTo(a->_zone.pos._oldposition._x, a->_zone.pos._oldposition._y);
+		r.moveTo(a->_zone._oldposition._x, a->_zone._oldposition._y);
 		_vm->_gfx->restoreBackground(r);
 
 		if (arg_0) {
-			a->_zone.pos._oldposition._x = a->_zone.pos._position._x;
-			a->_zone.pos._oldposition._y = a->_zone.pos._position._y;
+			a->_zone._oldposition._x = a->_zone._left;
+			a->_zone._oldposition._y = a->_zone._top;
 		}
 
 	}
@@ -327,12 +327,12 @@ void Parallaction::parseScriptLine(Instruction *inst, Animation *a, LocalVariabl
 		break;
 
 	case INST_X:	// x
-		inst->_opA._pvalue = &a->_zone.pos._position._x;
+		inst->_opA._pvalue = &a->_zone._left;
 		inst->_opB = getLValue(inst, _tokens[1], locals, a);
 		break;
 
 	case INST_Y:	// y
-		inst->_opA._pvalue = &a->_zone.pos._position._y;
+		inst->_opA._pvalue = &a->_zone._top;
 		inst->_opB = getLValue(inst, _tokens[1], locals, a);
 		break;
 
@@ -349,10 +349,10 @@ void Parallaction::parseScriptLine(Instruction *inst, Animation *a, LocalVariabl
 	case INST_INC:	// inc
 	case INST_DEC:	// dec
 		if (!scumm_stricmp(_tokens[1], "X")) {
-			inst->_opA._pvalue = &a->_zone.pos._position._x;
+			inst->_opA._pvalue = &a->_zone._left;
 		} else
 		if (!scumm_stricmp(_tokens[1], "Y")) {
-			inst->_opA._pvalue = &a->_zone.pos._position._y;
+			inst->_opA._pvalue = &a->_zone._top;
 		} else
 		if (!scumm_stricmp(_tokens[1], "Z")) {
 			inst->_opA._pvalue = &a->_z;
@@ -462,10 +462,10 @@ LValue getLValue(Instruction *inst, char *str, LocalVariable *locals, Animation
 	}
 
 	if (str[0] == 'X') {
-		v._pvalue = &a->_zone.pos._position._x;
+		v._pvalue = &a->_zone._left;
 	} else
 	if (str[0] == 'Y') {
-		v._pvalue = &a->_zone.pos._position._y;
+		v._pvalue = &a->_zone._top;
 	} else
 	if (str[0] == 'Z') {
 		v._pvalue = &a->_z;
@@ -489,7 +489,7 @@ void jobRunScripts(void *parm, Job *j) {
 	StaticCnv v18;
 	WalkNode *v4 = NULL;
 
-	if (a->_zone._flags & kFlagsCharacter) a->_z = a->_zone.pos._position._y + a->_cnv._height;
+	if (a->_zone._flags & kFlagsCharacter) a->_z = a->_zone._top + a->_cnv._height;
 	for ( ; a; a = (Animation*)a->_zone._next) {
 
 		if ((a->_zone._flags & kFlagsActing) == 0) continue;
@@ -632,7 +632,7 @@ void jobRunScripts(void *parm, Job *j) {
 
 label1:
 		if (a->_zone._flags & kFlagsCharacter)
-			a->_z = a->_zone.pos._position._y + a->_cnv._height;
+			a->_z = a->_zone._top + a->_cnv._height;
 	}
 
 	sortAnimations();
@@ -658,7 +658,7 @@ void sortAnimations() {
 	Node v14;
 	memset(&v14, 0, sizeof(Node));
 
-	_vm->_char._ani._z = _vm->_char._ani._cnv._height + _vm->_char._ani._zone._limits._top;
+	_vm->_char._ani._z = _vm->_char._ani._cnv._height + _vm->_char._ani._zone._top;
 
 	Animation *vC = (Animation*)_animations._next;
 	Node *v8;
diff --git a/engines/parallaction/callables.cpp b/engines/parallaction/callables.cpp
index b422909010..8768c21da6 100644
--- a/engines/parallaction/callables.cpp
+++ b/engines/parallaction/callables.cpp
@@ -116,21 +116,21 @@ void _c_moveSarc(void *parm) {
 			}
 		}
 
-		_introSarcData1 = _introSarcData3 - _moveSarcZone1->_limits._left;
+		_introSarcData1 = _introSarcData3 - _moveSarcZone1->_left;
 		a->_z = _introSarcData3;
-		a->_frame = _moveSarcZone1->_limits._top - (_introSarcData1 / 20);
-		_introSarcData3 = _moveSarcZone1->_limits._left;
+		a->_frame = _moveSarcZone1->_top - (_introSarcData1 / 20);
+		_introSarcData3 = _moveSarcZone1->_left;
 
 		if (_introSarcData1 > 0) {
-			a->_zone.pos._position._x = _introSarcData1 / 2;
+			a->_zone._left = _introSarcData1 / 2;
 		} else {
-			a->_zone.pos._position._x = -_introSarcData1 / 2;
+			a->_zone._left = -_introSarcData1 / 2;
 		}
 
 		if (_introSarcData1 > 0) {
-			a->_zone.pos._position._y = 2;
+			a->_zone._top = 2;
 		} else {
-			a->_zone.pos._position._y = -2;
+			a->_zone._top = -2;
 		}
 
 		return;
@@ -139,23 +139,23 @@ void _c_moveSarc(void *parm) {
 
 	_introSarcData2 = 1;
 
-	_moveSarcZone1->_limits._right += _introSarcData1;
-	_moveSarcZone1->_limits._left += _introSarcData1;
+	_moveSarcZone1->_right += _introSarcData1;
+	_moveSarcZone1->_left += _introSarcData1;
 
-	_moveSarcZone1->_limits._top -= (_introSarcData1 / 20);
-	_moveSarcZone1->_limits._bottom -= (_introSarcData1 / 20);
+	_moveSarcZone1->_top -= (_introSarcData1 / 20);
+	_moveSarcZone1->_bottom -= (_introSarcData1 / 20);
 
-	_moveSarcZone0->_limits._right += _introSarcData1;
-	_moveSarcZone0->_limits._left += _introSarcData1;
+	_moveSarcZone0->_right += _introSarcData1;
+	_moveSarcZone0->_left += _introSarcData1;
 
-	_moveSarcZone0->_limits._top -= (_introSarcData1 / 20);
-	_moveSarcZone0->_limits._bottom -= (_introSarcData1 / 20);
+	_moveSarcZone0->_top -= (_introSarcData1 / 20);
+	_moveSarcZone0->_bottom -= (_introSarcData1 / 20);
 
-	if (_moveSarcZones[0]->_limits._left == 35 &&
-		_moveSarcZones[1]->_limits._left == 68 &&
-		_moveSarcZones[2]->_limits._left == 101 &&
-		_moveSarcZones[3]->_limits._left == 134 &&
-		_moveSarcZones[4]->_limits._left == 167) {
+	if (_moveSarcZones[0]->_left == 35 &&
+		_moveSarcZones[1]->_left == 68 &&
+		_moveSarcZones[2]->_left == 101 &&
+		_moveSarcZones[3]->_left == 134 &&
+		_moveSarcZones[4]->_left == 167) {
 
 		a = findAnimation("finito");
 
diff --git a/engines/parallaction/intro.cpp b/engines/parallaction/intro.cpp
index 0224702158..64eed32b91 100644
--- a/engines/parallaction/intro.cpp
+++ b/engines/parallaction/intro.cpp
@@ -313,8 +313,8 @@ void _c_sketch(void *parm) {
 
 	introFunc1(_1, _2, _3, _4);
 
-	_rightHandAnim->_zone.pos._position._x = _rightHandPositions[index*2];
-	_rightHandAnim->_zone.pos._position._y = _rightHandPositions[index*2+1] - 20;
+	_rightHandAnim->_zone._left = _rightHandPositions[index*2];
+	_rightHandAnim->_zone._top = _rightHandPositions[index*2+1] - 20;
 
 	index++;
 
@@ -327,10 +327,10 @@ void _c_sketch(void *parm) {
 void _c_shade(void *parm) {
 
 	Common::Rect r(
-		_rightHandAnim->_zone.pos._position._x - 36,
-		_rightHandAnim->_zone.pos._position._y - 36,
-		_rightHandAnim->_zone.pos._position._x,
-		_rightHandAnim->_zone.pos._position._y
+		_rightHandAnim->_zone._left - 36,
+		_rightHandAnim->_zone._top - 36,
+		_rightHandAnim->_zone._left,
+		_rightHandAnim->_zone._top
 	);
 
 	_vm->_gfx->maskClearRectangle(r);
diff --git a/engines/parallaction/location.cpp b/engines/parallaction/location.cpp
index edd7b319cb..d285a99b68 100644
--- a/engines/parallaction/location.cpp
+++ b/engines/parallaction/location.cpp
@@ -92,8 +92,8 @@ void Parallaction::parseLocation(const char *filename) {
 			switchBackground(_location._name, mask);
 
 			if (_tokens[2][0] != '\0') {
-				_vm->_char._ani._zone.pos._position._x = atoi(_tokens[2]);
-				_vm->_char._ani._zone.pos._position._y = atoi(_tokens[3]);
+				_vm->_char._ani._zone._left = atoi(_tokens[2]);
+				_vm->_char._ani._zone._top = atoi(_tokens[3]);
 			}
 
 			if (_tokens[4][0] != '\0') {
@@ -384,13 +384,13 @@ void Parallaction::changeLocation(char *location) {
 	_gfx->copyScreen(Gfx::kBitBack, Gfx::kBit2);
 	debugC(1, kDebugLocation, "changeLocation: new location '%s' parsed", _saveData1);
 
-	_vm->_char._ani._zone.pos._oldposition._x = -1000;
-	_vm->_char._ani._zone.pos._oldposition._y = -1000;
+	_vm->_char._ani._zone._oldposition._x = -1000;
+	_vm->_char._ani._zone._oldposition._y = -1000;
 
 	_vm->_char._ani.field_50 = 0;
 	if (_location._startPosition._x != -1000) {
-		_vm->_char._ani._zone.pos._position._x = _location._startPosition._x;
-		_vm->_char._ani._zone.pos._position._y = _location._startPosition._y;
+		_vm->_char._ani._zone._left = _location._startPosition._x;
+		_vm->_char._ani._zone._top = _location._startPosition._y;
 		_vm->_char._ani._frame = _location._startFrame;
 		_location._startPosition._y = -1000;
 		_location._startPosition._x = -1000;
diff --git a/engines/parallaction/parallaction.cpp b/engines/parallaction/parallaction.cpp
index 52987850da..084300e37d 100644
--- a/engines/parallaction/parallaction.cpp
+++ b/engines/parallaction/parallaction.cpp
@@ -261,8 +261,8 @@ void Parallaction::initGame() {
 	parseLocation(_location._name);
 
 	if (_location._startPosition._x != -1000) {
-		_vm->_char._ani._zone.pos._position._x = _location._startPosition._x;
-		_vm->_char._ani._zone.pos._position._y = _location._startPosition._y;
+		_vm->_char._ani._zone._left = _location._startPosition._x;
+		_vm->_char._ani._zone._top = _location._startPosition._y;
 		_vm->_char._ani._frame = _location._startFrame;
 		_location._startPosition._y = -1000;
 		_location._startPosition._x = -1000;
diff --git a/engines/parallaction/parallaction.h b/engines/parallaction/parallaction.h
index 0295f3e646..e6e1bf92c2 100644
--- a/engines/parallaction/parallaction.h
+++ b/engines/parallaction/parallaction.h
@@ -255,11 +255,11 @@ struct Character {
 
 		_objs._count = 0;
 
-		_ani._zone.pos._position._x = 150;
-		_ani._zone.pos._position._y = 100;
+		_ani._zone._left = 150;
+		_ani._zone._top = 100;
 		_ani._z = 10;
-		_ani._zone.pos._oldposition._x = -1000;
-		_ani._zone.pos._oldposition._y = -1000;
+		_ani._zone._oldposition._x = -1000;
+		_ani._zone._oldposition._y = -1000;
 		_ani._frame = 0;
 		_ani._zone._flags = kFlagsActive | kFlagsNoName;
 		_ani._zone._type = kZoneYou;
diff --git a/engines/parallaction/saveload.cpp b/engines/parallaction/saveload.cpp
index 2b4f464258..e78dde1f82 100644
--- a/engines/parallaction/saveload.cpp
+++ b/engines/parallaction/saveload.cpp
@@ -175,9 +175,9 @@ void Parallaction::doSaveGame(uint16 slot, const char* name) {
 
 	sprintf(s, "%s\n", _saveData1);
 	f->writeString(s);
-	sprintf(s, "%d\n", _vm->_char._ani._zone.pos._position._x);
+	sprintf(s, "%d\n", _vm->_char._ani._zone._left);
 	f->writeString(s);
-	sprintf(s, "%d\n", _vm->_char._ani._zone.pos._position._y);
+	sprintf(s, "%d\n", _vm->_char._ani._zone._top);
 	f->writeString(s);
 	sprintf(s, "%d\n", _score);
 	f->writeString(s);
diff --git a/engines/parallaction/walk.cpp b/engines/parallaction/walk.cpp
index 152dc68d24..4418372f68 100644
--- a/engines/parallaction/walk.cpp
+++ b/engines/parallaction/walk.cpp
@@ -152,11 +152,11 @@ WalkNode *buildWalkPath(uint16 x, uint16 y) {
 
 		v48 = &v58;
 
-		v20._x = _vm->_char._ani._zone.pos._position._x;
-		v20._y = _vm->_char._ani._zone.pos._position._y;
+		v20._x = _vm->_char._ani._zone._left;
+		v20._y = _vm->_char._ani._zone._top;
 
-		v8._x = _si - _vm->_char._ani._zone.pos._position._x;
-		v8._y = _di - _vm->_char._ani._zone.pos._position._y;
+		v8._x = _si - _vm->_char._ani._zone._left;
+		v8._y = _di - _vm->_char._ani._zone._top;
 		v34 = v30 = dotProduct(&v8, &v8);				// square distance from current position and target
 
 		while (_closest_node_found != 0) {
@@ -245,8 +245,8 @@ uint16 walkFunc1(int16 x, int16 y, WalkNode *Node) {
 	Point v4 = { 0, 0 };
 
 	Point foot = {
-		_vm->_char._ani._zone.pos._position._x + _vm->_char._ani._cnv._width/2,
-		_vm->_char._ani._zone.pos._position._y + _vm->_char._ani._cnv._height
+		_vm->_char._ani._zone._left + _vm->_char._ani._cnv._width/2,
+		_vm->_char._ani._zone._top + _vm->_char._ani._cnv._height
 	};
 
 	Point v8 = {
@@ -316,13 +316,13 @@ uint16 walkFunc1(int16 x, int16 y, WalkNode *Node) {
 void jobWalk(void *parm, Job *j) {
 	WalkNode *node = (WalkNode*)parm;
 
-	int16 _si = _vm->_char._ani._zone.pos._position._x;
-	int16 _di = _vm->_char._ani._zone.pos._position._y;
+	int16 _si = _vm->_char._ani._zone._left;
+	int16 _di = _vm->_char._ani._zone._top;
 
 //	debugC(1, kDebugWalk, "jobWalk to (%i, %i)", node->_x + _vm->_char._ani._cnv._width / 2, node->_y + _vm->_char._ani._cnv._height);
 
-	_vm->_char._ani._zone.pos._oldposition._x = _si;
-	_vm->_char._ani._zone.pos._oldposition._y = _di;
+	_vm->_char._ani._zone._oldposition._x = _si;
+	_vm->_char._ani._zone._oldposition._y = _di;
 
 	if ((node->_x == _si) && (node->_y == _di)) {
 		if (node->_next == NULL) {
@@ -346,8 +346,8 @@ void jobWalk(void *parm, Job *j) {
 	}
 
 	Point dist = {
-		node->_x - _vm->_char._ani._zone.pos._position._x,
-		node->_y - _vm->_char._ani._zone.pos._position._y
+		node->_x - _vm->_char._ani._zone._left,
+		node->_y - _vm->_char._ani._zone._top
 	};
 
 	if (dist._x < 0)
@@ -412,10 +412,10 @@ void jobWalk(void *parm, Job *j) {
 	}
 
 //	printf("hitZone: %i, %i\n", _si, _di);
-	_vm->_char._ani._zone.pos._position._x = _si;
-	_vm->_char._ani._zone.pos._position._y = _di;
+	_vm->_char._ani._zone._left = _si;
+	_vm->_char._ani._zone._top = _di;
 
-	if ((_si == _vm->_char._ani._zone.pos._oldposition._x) && (_di == _vm->_char._ani._zone.pos._oldposition._y)) {
+	if ((_si == _vm->_char._ani._zone._oldposition._x) && (_di == _vm->_char._ani._zone._oldposition._y)) {
 
 		j->_finished = 1;
 		checkDoor();
@@ -440,7 +440,7 @@ uint16 checkDoor() {
 	}
 
 	_engineFlags &= ~kEngineWalking;
-	Zone *z = hitZone(kZoneDoor, _vm->_char._ani._zone.pos._position._x + _vm->_char._ani._cnv._width / 2,	_vm->_char._ani._zone.pos._position._y + _vm->_char._ani._cnv._height);
+	Zone *z = hitZone(kZoneDoor, _vm->_char._ani._zone._left + _vm->_char._ani._cnv._width / 2,	_vm->_char._ani._zone._top + _vm->_char._ani._cnv._height);
 
 	if (z != NULL) {
 
@@ -458,7 +458,7 @@ uint16 checkDoor() {
 		}
 	}
 
-	z = hitZone(kZoneTrap, _vm->_char._ani._zone.pos._position._x + _vm->_char._ani._cnv._width / 2, _vm->_char._ani._zone.pos._position._y + _vm->_char._ani._cnv._height);
+	z = hitZone(kZoneTrap, _vm->_char._ani._zone._left + _vm->_char._ani._cnv._width / 2, _vm->_char._ani._zone._top + _vm->_char._ani._cnv._height);
 
 	if (z != NULL) {
 		_localFlags[_vm->_currentLocationIndex] |= kFlagsEnter;
diff --git a/engines/parallaction/zone.cpp b/engines/parallaction/zone.cpp
index 8ce938be5f..13709f57de 100644
--- a/engines/parallaction/zone.cpp
+++ b/engines/parallaction/zone.cpp
@@ -77,10 +77,10 @@ void Parallaction::parseZone(Script &script, Node *list, char *name) {
 //		printf("token[0] = %s", _tokens[0]);
 
 		if (!scumm_stricmp(_tokens[0], "limits")) {
-			z->_limits._left = atoi(_tokens[1]);
-			z->_limits._top = atoi(_tokens[2]);
-			z->_limits._right = atoi(_tokens[3]);
-			z->_limits._bottom = atoi(_tokens[4]);
+			z->_left = atoi(_tokens[1]);
+			z->_top = atoi(_tokens[2]);
+			z->_right = atoi(_tokens[3]);
+			z->_bottom = atoi(_tokens[4]);
 		}
 		if (!scumm_stricmp(_tokens[0], "moveto")) {
 			z->_moveTo._x = atoi(_tokens[1]);
@@ -131,8 +131,8 @@ void freeZones(Node *list) {
 		// WORKAROUND: this huge condition is needed because we made ZoneTypeData a collection of structs
 		// instead of an union. So, merge->_obj1 and get->_icon were just aliases in the original engine,
 		// but we need to check it separately here. The same workaround is applied in hitZone.
-		if (((z->_limits._top == -1) ||
-			((z->_limits._left == -2) && (
+		if (((z->_top == -1) ||
+			((z->_left == -2) && (
 				(((z->_type & 0xFFFF) == kZoneMerge) && ((isItemInInventory(MAKE_INVENTORY_ID(z->u.merge->_obj1)) != 0) || (isItemInInventory(MAKE_INVENTORY_ID(z->u.merge->_obj2)) != 0))) ||
 				(((z->_type & 0xFFFF) == kZoneGet) && ((isItemInInventory(MAKE_INVENTORY_ID(z->u.get->_icon)) != 0)))
 			))) &&
@@ -293,9 +293,9 @@ void Parallaction::parseZoneTypeBlock(Script &script, Zone *z) {
 //				vE0._data1 = doorcnv->field_8[_ax];
 
 				u->door->_background = (byte*)malloc(vE0._width*vE0._height);
-				_gfx->backupDoorBackground(u->door, z->_limits._left, z->_limits._top);
+				_gfx->backupDoorBackground(u->door, z->_left, z->_top);
 
-				_gfx->flatBlitCnv(&vE0, z->_limits._left, z->_limits._top, Gfx::kBitBack, vE0._data1);
+				_gfx->flatBlitCnv(&vE0, z->_left, z->_top, Gfx::kBitBack, vE0._data1);
 			}
 
 			if (!scumm_stricmp(_tokens[0],	"startpos")) {
@@ -313,8 +313,8 @@ void Parallaction::parseZoneTypeBlock(Script &script, Zone *z) {
 				u->get->_backup = (byte*)malloc(vE4->_width*vE4->_height);
 
 				if ((z->_flags & kFlagsRemove) == 0) {
-					_gfx->backupGetBackground(u->get, z->_limits._left, z->_limits._top);
-					_gfx->flatBlitCnv(vE4, z->_limits._left, z->_limits._top, Gfx::kBitBack, vE4->_data1);
+					_gfx->backupGetBackground(u->get, z->_left, z->_top);
+					_gfx->flatBlitCnv(vE4, z->_left, z->_top, Gfx::kBitBack, vE4->_data1);
 				}
 			}
 
@@ -490,7 +490,7 @@ void jobToggleDoor(void *parm, Job *j) {
 		v14._width = v18->_width;
 		v14._height = v18->_height;
 
-		Common::Rect r(z->_limits._left, z->_limits._top, z->_limits._left+v18->_width, z->_limits._top+v18->_height);
+		Common::Rect r(z->_left, z->_top, z->_left+v18->_width, z->_top+v18->_height);
 
 		_vm->_gfx->restoreZoneBackground(r, z->u.door->_background);
 
@@ -498,8 +498,8 @@ void jobToggleDoor(void *parm, Job *j) {
 
 		v14._data0 = v18->_array[_ax];
 
-		_vm->_gfx->flatBlitCnv(&v14, z->_limits._left, z->_limits._top, Gfx::kBitBack, v14._data1);
-		_vm->_gfx->flatBlitCnv(&v14, z->_limits._left, z->_limits._top, Gfx::kBit2, v14._data1);
+		_vm->_gfx->flatBlitCnv(&v14, z->_left, z->_top, Gfx::kBitBack, v14._data1);
+		_vm->_gfx->flatBlitCnv(&v14, z->_left, z->_top, Gfx::kBit2, v14._data1);
 	}
 
 	count++;
@@ -527,7 +527,7 @@ void jobRemovePickedItem(void *parm, Job *j) {
 	static uint16 count = 0;
 
 	if (z->u.get->_cnv._width != 0) {
-		Common::Rect r(z->_limits._left, z->_limits._top, z->_limits._left + z->u.get->_cnv._width, z->_limits._top + z->u.get->_cnv._height);
+		Common::Rect r(z->_left, z->_top, z->_left + z->u.get->_cnv._width, z->_top + z->u.get->_cnv._height);
 
 		_vm->_gfx->restoreZoneBackground(r, z->u.get->_backup);
 	}
@@ -548,11 +548,11 @@ void jobDisplayDroppedItem(void *parm, Job *j) {
 
 	if (&z->u.get->_cnv != NULL) {
 		if (z->u.get->_cnv._data0 != NULL) {
-			_vm->_gfx->backupGetBackground(z->u.get, z->_limits._left, z->_limits._top);
+			_vm->_gfx->backupGetBackground(z->u.get, z->_left, z->_top);
 		}
 
-		_vm->_gfx->flatBlitCnv(&z->u.get->_cnv, z->_limits._left, z->_limits._top, Gfx::kBitBack, z->u.get->_cnv._data1);
-		_vm->_gfx->flatBlitCnv(&z->u.get->_cnv, z->_limits._left, z->_limits._top, Gfx::kBit2, z->u.get->_cnv._data1);
+		_vm->_gfx->flatBlitCnv(&z->u.get->_cnv, z->_left, z->_top, Gfx::kBitBack, z->u.get->_cnv._data1);
+		_vm->_gfx->flatBlitCnv(&z->u.get->_cnv, z->_left, z->_top, Gfx::kBit2, z->u.get->_cnv._data1);
 	}
 
 	j->_count++;
@@ -581,13 +581,13 @@ Zone *hitZone(uint32 type, uint16 x, uint16 y) {
 
 		if (z->_flags & kFlagsRemove) continue;
 
-		if ((_si >= z->_limits._right)	||
-			(_si <= z->_limits._left)	||
-			(_di >= z->_limits._bottom) ||
-			(_di <= z->_limits._top)) {
+		if ((_si >= z->_right)	||
+			(_si <= z->_left)	||
+			(_di >= z->_bottom) ||
+			(_di <= z->_top)) {
 
 			// out of Zone, so look for special values
-			if ((z->_limits._left == -2) || (z->_limits._left == -3)) {
+			if ((z->_left == -2) || (z->_left == -3)) {
 
 				// WORKAROUND: this huge condition is needed because we made ZoneTypeData a collection of structs
 				// instead of an union. So, merge->_obj1 and get->_icon were just aliases in the original engine,
@@ -606,15 +606,15 @@ Zone *hitZone(uint32 type, uint16 x, uint16 y) {
 				}
 			}
 
-			if (z->_limits._left != -1)
+			if (z->_left != -1)
 				continue;
-			if (_si < _vm->_char._ani._zone.pos._position._x)
+			if (_si < _vm->_char._ani._zone._left)
 				continue;
-			if (_si > (_vm->_char._ani._zone.pos._position._x + _vm->_char._ani._cnv._width))
+			if (_si > (_vm->_char._ani._zone._left + _vm->_char._ani._cnv._width))
 				continue;
-			if (_di < _vm->_char._ani._zone.pos._position._y)
+			if (_di < _vm->_char._ani._zone._top)
 				continue;
-			if (_di > (_vm->_char._ani._zone.pos._position._y + _vm->_char._ani._cnv._height))
+			if (_di > (_vm->_char._ani._zone._top + _vm->_char._ani._cnv._height))
 				continue;
 
 		}
@@ -636,8 +636,8 @@ Zone *hitZone(uint32 type, uint16 x, uint16 y) {
 //		printf("Animation name: %s", a->_zone._name);
 
 		_a = (a->_zone._flags & kFlagsActive) ? 1 : 0;															   // _a: active Animation
-		_e = ((_si >= a->_zone.pos._position._x + a->_cnv._width) || (_si <= a->_zone.pos._position._x)) ? 0 : 1;		// _e: horizontal range
-		_f = ((_di >= a->_zone.pos._position._y + a->_cnv._height) || (_di <= a->_zone.pos._position._y)) ? 0 : 1;		// _f: vertical range
+		_e = ((_si >= a->_zone._left + a->_cnv._width) || (_si <= a->_zone._left)) ? 0 : 1;		// _e: horizontal range
+		_f = ((_di >= a->_zone._top + a->_cnv._height) || (_di <= a->_zone._top)) ? 0 : 1;		// _f: vertical range
 
 		_b = ((type != 0) || (a->_zone._type == kZoneYou)) ? 0 : 1; 										 // _b: (no type specified) AND (Animation is not the character)
 		_c = (a->_zone._type & 0xFFFF0000) ? 0 : 1; 															// _c: Animation is not an object
diff --git a/engines/parallaction/zone.h b/engines/parallaction/zone.h
index f9d9ce6a0b..8a32f1f5f0 100644
--- a/engines/parallaction/zone.h
+++ b/engines/parallaction/zone.h
@@ -124,13 +124,13 @@ struct ZoneLabel {
 };
 
 struct Zone : public Node {
-	union {
-		Rect		_limits;		// for zones
-		struct {	// for animations
-			Point	_position;
-			Point	_oldposition;
-		} pos;
-	};
+
+	int16 		_left;
+	int16		_top;
+	int16		_right;
+	int16		_bottom;
+	Point		_oldposition;
+
 	uint32			_type;
 	uint32			_flags;
 //	char*			_labeltext;