FULLPIPE: Split out MGM code into separate file

5 files changed, 817 insertions, 751 deletions

diff --git a/engines/fullpipe/mgm.cpp b/engines/fullpipe/mgm.cpp
new file mode 100644
index 0000000000..aacfd5452a
--- /dev/null
+++ b/engines/fullpipe/mgm.cpp
@@ -0,0 +1,719 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "fullpipe/fullpipe.h"
+
+#include "fullpipe/utils.h"
+#include "fullpipe/statics.h"
+#include "fullpipe/motion.h"
+#include "fullpipe/messages.h"
+
+namespace Fullpipe {
+
+void MGM::clear() {
+	_items.clear();
+}
+
+MessageQueue *MGM::genMQ(StaticANIObject *ani, int staticsIndex, int staticsId, int *resStatId, Common::Point **pointArr) {
+	int idx = getItemIndexById(ani->_id);
+
+	if (idx == -1)
+		return 0;
+
+	int stid = staticsId;
+
+	if (!staticsId) {
+		if (ani->_movement) {
+			stid = ani->_movement->_staticsObj2->_staticsId;
+		} else {
+			if (!ani->_statics)
+				return 0;
+
+			stid = ani->_statics->_staticsId;
+		}
+	}
+
+	if (stid == staticsIndex)
+		return new MessageQueue(g_fp->_globalMessageQueueList->compact());
+
+	int startidx = getStaticsIndexById(idx, stid);
+	int endidx = getStaticsIndexById(idx, staticsIndex);
+	int subidx = startidx + endidx * _items[idx]->statics.size();
+
+	if (!_items[idx]->subItems[subidx]->movement) {
+		clearMovements2(idx);
+		recalcOffsets(idx, startidx, endidx, 0, 1);
+	}
+
+	if (!_items[idx]->subItems[subidx]->movement)
+		return 0;
+
+    MessageQueue *mq = new MessageQueue(g_fp->_globalMessageQueueList->compact());
+	Common::Point point;
+	ExCommand *ex;
+
+	int i = 0;
+	do {
+		subidx = startidx + endidx * _items[idx]->statics.size();
+
+		_items[idx]->subItems[subidx]->movement->calcSomeXY(point, 0, -1);
+
+		if (pointArr) {
+			int sz;
+
+			if (_items[idx]->subItems[subidx]->movement->_currMovement)
+				sz = _items[idx]->subItems[subidx]->movement->_currMovement->_dynamicPhases.size();
+			else
+				sz = _items[idx]->subItems[subidx]->movement->_dynamicPhases.size();
+
+			ex = new ExCommand2(20, ani->_id, &pointArr[i], sz);
+
+			ex->_messageNum = _items[idx]->subItems[subidx]->movement->_id;
+		} else {
+			ex = new ExCommand(ani->_id, 1, _items[idx]->subItems[subidx]->movement->_id, 0, 0, 0, 1, 0, 0, 0);
+		}
+
+		ex->_keyCode = ani->_okeyCode;
+		ex->_field_3C = 1;
+		ex->_field_24 = 1;
+
+		mq->addExCommandToEnd(ex);
+
+		if (resStatId)
+			*resStatId = _items[idx]->subItems[subidx]->movement->_id;
+
+		startidx = _items[idx]->subItems[subidx]->staticsIndex;
+
+		uint step;
+
+		if (_items[idx]->subItems[subidx]->movement->_currMovement)
+			step = _items[idx]->subItems[subidx]->movement->_currMovement->_dynamicPhases.size();
+		else
+			step = _items[idx]->subItems[subidx]->movement->_dynamicPhases.size();
+
+		i += step;
+	} while (startidx != endidx);
+
+	return mq;
+}
+
+MGMItem::MGMItem() {
+	objId = 0;
+}
+
+MGMSubItem::MGMSubItem() {
+	movement = 0;
+	staticsIndex = 0;
+	field_8 = 0;
+	field_C = 0;
+	x = 0;
+	y = 0;
+}
+
+void MGM::addItem(int objId) {
+	if (getItemIndexById(objId) == -1) {
+		MGMItem *item = new MGMItem();
+
+		item->objId = objId;
+		_items.push_back(item);
+	}
+	rebuildTables(objId);
+}
+
+void MGM::rebuildTables(int objId) {
+	int idx = getItemIndexById(objId);
+
+	if (idx == -1)
+		return;
+
+	_items[idx]->subItems.clear();
+	_items[idx]->statics.clear();
+	_items[idx]->movements1.clear();
+	_items[idx]->movements2.clear();
+
+	StaticANIObject *obj = g_fp->_currentScene->getStaticANIObject1ById(objId, -1);
+
+	if (!obj)
+		return;
+
+	for (uint i = 0; i < obj->_staticsList.size(); i++)
+		_items[idx]->statics.push_back((Statics *)obj->_staticsList[i]);
+
+	for (uint i = 0; i < obj->_movements.size(); i++)
+		_items[idx]->movements1.push_back((Movement *)obj->_movements[i]);
+
+	_items[idx]->subItems.clear();
+}
+
+int MGM::getItemIndexById(int objId) {
+	for (uint i = 0; i < _items.size(); i++)
+		if (_items[i]->objId == objId)
+			return i;
+
+	return -1;
+}
+
+MessageQueue *MGM::genMovement(MGMInfo *mgminfo) {
+	if (!mgminfo->ani)
+		return 0;
+
+	Movement *mov = mgminfo->ani->_movement;
+
+	if (!mov && !mgminfo->ani->_statics)
+		return 0;
+
+	if (!(mgminfo->flags & 1)) {
+		if (mov)
+			mgminfo->staticsId1 = mov->_staticsObj2->_staticsId;
+		else
+			mgminfo->staticsId1 = mgminfo->ani->_statics->_staticsId;
+	}
+
+	Common::Point point;
+
+	if (!(mgminfo->flags & 0x10) || !(mgminfo->flags & 0x20)) {
+		int nx = mgminfo->ani->_ox;
+		int ny = mgminfo->ani->_oy;
+
+		if (mgminfo->ani->_movement) {
+			mgminfo->ani->calcNextStep(&point);
+
+			nx += point.x;
+			ny += point.y;
+		}
+
+		if (!(mgminfo->flags & 0x10))
+			mgminfo->x2 = nx;
+
+		if (!(mgminfo->flags & 0x20))
+			mgminfo->y2 = ny;
+	}
+
+	mov = mgminfo->ani->getMovementById(mgminfo->movementId);
+
+	if (!mov)
+		return 0;
+
+	int itemIdx = getItemIndexById(mgminfo->ani->_id);
+	int subIdx = getStaticsIndexById(itemIdx, mgminfo->staticsId1);
+	int st2idx = getStaticsIndexById(itemIdx, mov->_staticsObj1->_staticsId);
+	int st1idx = getStaticsIndexById(itemIdx, mov->_staticsObj2->_staticsId);
+	int subOffset = getStaticsIndexById(itemIdx, mgminfo->staticsId2);
+
+	clearMovements2(itemIdx);
+	recalcOffsets(itemIdx, subIdx, st2idx, 0, 1);
+	clearMovements2(itemIdx);
+	recalcOffsets(itemIdx, st1idx, subOffset, 0, 1);
+
+	MGMSubItem *sub1 = _items[itemIdx]->subItems[subIdx + st2idx * _items[itemIdx]->statics.size()];
+	MGMSubItem *sub2 = _items[itemIdx]->subItems[st1idx + subOffset * _items[itemIdx]->statics.size()];
+
+	if (subIdx != st2idx && !sub1->movement)
+		return 0;
+
+	if (st1idx != subOffset && !sub2->movement)
+		return 0;
+
+	int n1x = mgminfo->x1 - mgminfo->x2 - sub1->x - sub2->x;
+	int n1y = mgminfo->y1 - mgminfo->y2 - sub1->y - sub2->y;
+
+	Common::Point point1;
+
+	mov->calcSomeXY(point1, 0, -1);
+
+	int n2x = point1.x;
+	int n2y = point1.y;
+	int mult;
+	int len = -1;
+
+	if (mgminfo->flags & 0x40) {
+		mult = mgminfo->field_10;
+		len = -1;
+		n2x *= mult;
+		n2y *= mult;
+	} else {
+		calcLength(&point, mov, n1x, n1y, &mult, &len, 1);
+		n2x = point.x;
+		n2y = point.y;
+	}
+
+	if (!(mgminfo->flags & 2)) {
+		len = -1;
+		n2x = mult * point1.x;
+		n1x = mult * point1.x;
+		mgminfo->x1 = mgminfo->x2 + mult * point1.x + sub1->x + sub2->x;
+	}
+
+	if (!(mgminfo->flags & 4)) {
+		n2y = mult * point1.y;
+		n1y = mult * point1.y;
+		len = -1;
+		mgminfo->y1 = mgminfo->y2 + mult * point1.y + sub1->y + sub2->y;
+	}
+
+	int px = 0;
+	int py = 0;
+
+	if (sub1->movement) {
+		px = countPhases(itemIdx, subIdx, st2idx, 1);
+		py = countPhases(itemIdx, subIdx, st2idx, 2);
+	}
+
+	if (mult > 1) {
+		px += (mult - 1) * mov->countPhasesWithFlag(-1, 1);
+		py += (mult - 1) * mov->countPhasesWithFlag(-1, 2);
+	}
+
+	if (mult > 0) {
+		px += mov->countPhasesWithFlag(len, 1);
+		py += mov->countPhasesWithFlag(len, 2);
+	}
+
+	if (sub2->movement) {
+		px += countPhases(itemIdx, st1idx, subOffset, 1);
+		py += countPhases(itemIdx, st1idx, subOffset, 2);
+	}
+
+	int dx1 = n1x - n2x;
+	int dy1 = n1y - n2y;
+	int x1, y1;
+
+	if (px) {
+		x1 = (int)((double)dx1 / (double)px);
+	} else {
+		x1 = 0;
+	}
+
+	if (py) {
+		y1 = (int)((double)dy1 / (double)py);
+	} else {
+		y1 = 0;
+	}
+
+	Common::Point x2, y2;
+
+	y2.x = dx1 - px * x1;
+	y2.y = dy1 - py * y1;
+
+	if (n1x - n2x == px * x1)
+		x2.x = 0;
+	else
+		x2.x = (dx1 - px * x1) / abs(dx1 - px * x1);
+
+	if (dy1 == py * y1)
+		x2.y = 0;
+	else
+		x2.y = (dy1 - py * y1) / abs(dy1 - py * y1);
+
+	MessageQueue *mq = new MessageQueue(g_fp->_globalMessageQueueList->compact());
+	ExCommand2 *ex2;
+
+	for (int i = subIdx; i != st2idx;) {
+		MGMSubItem *s = _items[itemIdx]->subItems[i + subOffset * _items[itemIdx]->statics.size()];
+
+		ex2 = buildExCommand2(s->movement, mgminfo->ani->_id, x1, y1, &x2, &y2, -1);
+		ex2->_parId = mq->_id;
+		ex2->_keyCode = mgminfo->ani->_okeyCode;
+
+		mq->addExCommandToEnd(ex2);
+
+		i = s->staticsIndex;
+	}
+
+	for (int i = 0; i < mult; ++i) {
+		int plen;
+
+		if (i == mult - 1)
+			plen = len;
+		else
+			plen = -1;
+
+		ex2 = buildExCommand2(mov, mgminfo->ani->_id, x1, y1, &x2, &y2, plen);
+		ex2->_parId = mq->_id;
+		ex2->_keyCode = mgminfo->ani->_okeyCode;
+
+		mq->addExCommandToEnd(ex2);
+	}
+
+	for (int j = st1idx; j != subOffset;) {
+		MGMSubItem *s = _items[itemIdx]->subItems[j + subOffset * _items[itemIdx]->statics.size()];
+
+		ex2 = buildExCommand2(s->movement, mgminfo->ani->_id, x1, y1, &x2, &y2, -1);
+		ex2->_parId = mq->_id;
+		ex2->_keyCode = mgminfo->ani->_okeyCode;
+
+		mq->addExCommandToEnd(ex2);
+
+		j = s->staticsIndex;
+	}
+
+	ExCommand *ex = new ExCommand(mgminfo->ani->_id, 5, -1, mgminfo->x1, mgminfo->y1, 0, 1, 0, 0, 0);
+
+	ex->_field_14 = mgminfo->field_1C;
+	ex->_keyCode = mgminfo->ani->_okeyCode;
+	ex->_field_24 = 0;
+	ex->_excFlags |= 3;
+
+	mq->addExCommandToEnd(ex);
+
+	return mq;
+}
+
+int MGM::countPhases(int idx, int subIdx, int endIdx, int flag) {
+	int res = 0;
+
+	if (endIdx < 0)
+		return 0;
+
+	while (subIdx != endIdx) {
+		if (subIdx < 0)
+			break;
+
+		res += _items[idx]->subItems[subIdx + endIdx * _items[idx]->statics.size()]->movement->countPhasesWithFlag(-1, flag);
+
+		subIdx = _items[idx]->subItems[subIdx + 6 * endIdx * _items[idx]->statics.size()]->staticsIndex;
+	}
+
+	return res;
+}
+void MGM::updateAnimStatics(StaticANIObject *ani, int staticsId) {
+	if (getItemIndexById(ani->_id) == -1)
+		return;
+
+	if (ani->_movement) {
+		ani->queueMessageQueue(0);
+		ani->_movement->gotoLastFrame();
+		ani->_statics = ani->_movement->_staticsObj2;
+
+		int x = ani->_movement->_ox;
+		int y = ani->_movement->_oy;
+
+		ani->_movement = 0;
+
+		ani->setOXY(x, y);
+	}
+
+	if (ani->_statics) {
+		Common::Point point;
+
+		getPoint(&point, ani->_id, ani->_statics->_staticsId, staticsId);
+
+		ani->setOXY(ani->_ox + point.x, ani->_oy + point.y);
+
+		ani->_statics = ani->getStaticsById(staticsId);
+	}
+}
+
+Common::Point *MGM::getPoint(Common::Point *point, int objectId, int staticsId1, int staticsId2) {
+	int idx = getItemIndexById(objectId);
+
+	if (idx == -1) {
+		point->x = -1;
+		point->y = -1;
+	} else {
+		int st1idx = getStaticsIndexById(idx, staticsId1);
+		int st2idx = getStaticsIndexById(idx, staticsId2);
+
+		if (st1idx == st2idx) {
+			point->x = 0;
+			point->y = 0;
+		} else {
+			int subidx = st1idx + st2idx * _items[idx]->statics.size();
+
+			if (!_items[idx]->subItems[subidx]->movement) {
+				clearMovements2(idx);
+				recalcOffsets(idx, st1idx, st2idx, false, true);
+
+				if (!_items[idx]->subItems[subidx]->movement) {
+					clearMovements2(idx);
+					recalcOffsets(idx, st1idx, st2idx, true, false);
+				}
+			}
+
+			MGMSubItem *sub = _items[idx]->subItems[subidx];
+
+			if (sub->movement) {
+				point->x = sub->x;
+				point->y = sub->y;
+			} else {
+				point->x = 0;
+				point->y = 0;
+			}
+		}
+	}
+
+	return point;
+}
+
+int MGM::getStaticsIndexById(int idx, int16 id) {
+	if (!_items[idx]->statics.size())
+		return -1;
+
+	for (uint i = 0; i < _items[idx]->statics.size(); i++) {
+		if (_items[idx]->statics[i]->_staticsId == id)
+			return i;
+	}
+
+	return 0;
+}
+
+int MGM::getStaticsIndex(int idx, Statics *st) {
+	if (!_items[idx]->statics.size())
+		return -1;
+
+	for (uint i = 0; i < _items[idx]->statics.size(); i++) {
+		if (_items[idx]->statics[i] == st)
+			return i;
+	}
+
+	return 0;
+}
+
+void MGM::clearMovements2(int idx) {
+	_items[idx]->movements2.clear();
+}
+
+int MGM::recalcOffsets(int idx, int st1idx, int st2idx, bool flip, bool flop) {
+	MGMItem *item = _items[idx];
+	int subIdx = st1idx + st2idx * item->statics.size();
+
+	if (st1idx == st2idx) {
+		memset(&item->subItems[subIdx], 0, sizeof(item->subItems[subIdx]));
+		return 0;
+	}
+
+	if (item->subItems[subIdx])
+		return item->subItems[subIdx]->field_8;
+
+	Common::Point point;
+
+	for (uint i = 0; i < item->movements1.size(); i++) {
+		Movement *mov = item->movements1[i];
+
+		if (mov->_staticsObj1 == item->statics[st1idx]) {
+			if (!item->movements2[i] && (!flop || mov->_field_50)) {
+				item->movements2[i] = 1;
+
+				int stidx = getStaticsIndex(idx, item->movements1[i]->_staticsObj2);
+				int recalc = recalcOffsets(idx, stidx, st2idx, flip, flop);
+				int sz = mov->_currMovement ? mov->_currMovement->_dynamicPhases.size() : mov->_dynamicPhases.size();
+				int newsz = sz + item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->field_C;
+
+				if (recalc >= 0) {
+					if (!item->subItems[subIdx]->movement || item->subItems[subIdx]->field_8 > recalc + 1 ||
+						(item->subItems[subIdx]->field_8 == recalc + 1 && item->subItems[subIdx]->field_C > newsz)) {
+						item->subItems[subIdx]->movement = mov;
+						item->subItems[subIdx]->staticsIndex = stidx;
+						item->subItems[subIdx]->field_8 = recalc + 1;
+						item->subItems[subIdx]->field_C = newsz;
+
+						mov->calcSomeXY(point, 0, -1);
+
+						item->subItems[subIdx]->x = item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->x + point.x;
+						item->subItems[subIdx]->y = item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->y + point.y;
+					}
+				}
+			}
+		} else if (flip) {
+			if (mov->_staticsObj2 == item->statics[st1idx]) {
+				if (!item->movements2[i] && (!flop || mov->_field_50)) {
+					item->movements2[i] = 1;
+
+					int stidx = getStaticsIndex(idx, mov->_staticsObj1);
+					int recalc = recalcOffsets(idx, stidx, st2idx, flip, flop);
+
+					if (recalc >= 0) {
+						if (!item->subItems[subIdx]->movement || item->subItems[subIdx]->field_8 > recalc + 1) {
+							item->subItems[subIdx]->movement = mov;
+							item->subItems[subIdx]->staticsIndex = stidx;
+							item->subItems[subIdx]->field_8 = recalc + 1;
+
+							int sz = mov->_currMovement ? mov->_currMovement->_dynamicPhases.size() : mov->_dynamicPhases.size();
+
+							item->subItems[subIdx]->field_C = sz + item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->field_C;
+
+							mov->calcSomeXY(point, 0, -1);
+
+							item->subItems[subIdx]->x = item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->x - point.x;
+							item->subItems[subIdx]->y = item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->y - point.y;
+						}
+					}
+				}
+			}
+		}
+	}
+
+	if (item->subItems[subIdx]->movement)
+		return item->subItems[subIdx]->field_8;
+
+	return -1;
+}
+
+int MGM::refreshOffsets(int objectId, int idx1, int idx2) {
+	int idx = getItemIndexById(objectId);
+
+	if (idx != -1) {
+		int from = getStaticsIndexById(idx, idx1);
+		int to = getStaticsIndexById(idx, idx2);
+
+		MGMSubItem *sub = _items[idx]->subItems[from + to * _items[idx]->statics.size()];
+
+		if (sub->movement) {
+			idx = sub->field_8;
+		} else {
+			clearMovements2(idx);
+			idx = recalcOffsets(idx, from, to, 0, 1);
+		}
+	}
+
+	return idx;
+}
+
+Common::Point *MGM::calcLength(Common::Point *pRes, Movement *mov, int x, int y, int *mult, int *len, int flag) {
+	Common::Point point;
+
+	mov->calcSomeXY(point, 0, -1);
+	int p1x = point.x;
+	int p1y = point.y;
+
+	int newmult = 0;
+	int oldlen = *len;
+
+	if (abs(p1y) > abs(p1x)) {
+		if (mov->calcSomeXY(point, 0, -1)->y)
+			newmult = (int)((double)y / mov->calcSomeXY(point, 0, -1)->y);
+	} else if (mov->calcSomeXY(point, 0, -1)->x) {
+		newmult = (int)((double)x / mov->calcSomeXY(point, 0, -1)->x);
+	}
+
+	if (newmult < 0)
+		newmult = 0;
+
+	*mult = newmult;
+
+	int phase = 1;
+	int sz;
+
+	if (flag) {
+		if (abs(p1y) > abs(p1x)) {
+			while (abs(p1y * newmult + mov->calcSomeXY(point, 0, phase)->y) < abs(y)) {
+				sz = mov->_currMovement ? mov->_currMovement->_dynamicPhases.size() : mov->_dynamicPhases.size();
+
+				if (phase > sz)
+					break;
+
+				phase++;
+			}
+		} else {
+			while (abs(p1x * newmult + mov->calcSomeXY(point, 0, phase)->x) < abs(x)) {
+				sz = mov->_currMovement ? mov->_currMovement->_dynamicPhases.size() : mov->_dynamicPhases.size();
+
+				if (phase >= sz)
+					break;
+
+				phase++;
+			}
+		}
+
+		*len = phase - 1;
+	} else {
+		*len = -1;
+	}
+
+	int p2x = 0;
+	int p2y = 0;
+
+	if (!oldlen)
+		oldlen = -1;
+
+	if (oldlen > 0) {
+		++*mult;
+
+		mov->calcSomeXY(point, 0, oldlen);
+		p2x = point.x;
+		p2y = point.y;
+
+		if (abs(p1y) > abs(p1x))
+			p2x = p1x;
+		else
+			p2y = p1y;
+	}
+
+	pRes->x = p2x + p1x * newmult;
+	pRes->y = p2y + p1y * newmult;
+
+	return pRes;
+}
+
+ExCommand2 *MGM::buildExCommand2(Movement *mov, int objId, int x1, int y1, Common::Point *x2, Common::Point *y2, int len) {
+	uint cnt;
+
+	if (mov->_currMovement)
+		cnt = mov->_currMovement->_dynamicPhases.size();
+	else
+		cnt = mov->_dynamicPhases.size();
+
+	if (len > 0 && cnt > (uint)len)
+		cnt = len;
+
+	Common::Point **points = (Common::Point **)malloc(sizeof(Common::Point *) * cnt);
+
+	for (uint i = 0; i < cnt; i++) {
+		int flags = mov->getDynamicPhaseByIndex(i)->getDynFlags();
+
+		points[i] = new Common::Point;
+
+		if (flags & 1) {
+			points[i]->x = x1 + x2->x;
+
+			y2->x -= x2->x;
+
+			if (!y2->x)
+				x2->x = 0;
+		}
+
+		if (flags & 2) {
+			points[i]->y = y1 + x2->y;
+
+			y2->y -= x2->y;
+
+			if (!y2->y)
+				x2->y = 0;
+		}
+	}
+
+	ExCommand2 *ex = new ExCommand2(20, objId, points, cnt);
+	ex->_excFlags = 2;
+	ex->_messageNum = mov->_id;
+	ex->_field_14 = len;
+	ex->_field_24 = 1;
+	ex->_keyCode = -1;
+
+	for (uint i = 0; i < cnt; i++)
+		delete points[i];
+
+	free(points);
+
+	return ex;
+}
+
+} // End of namespace Fullpipe
diff --git a/engines/fullpipe/mgm.h b/engines/fullpipe/mgm.h
new file mode 100644
index 0000000000..13195891da
--- /dev/null
+++ b/engines/fullpipe/mgm.h
@@ -0,0 +1,95 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef FULLPIPE_MGM_H
+#define FULLPIPE_MGM_H
+
+namespace Fullpipe {
+
+class ExCommand2;
+class Movement;
+class Statics;
+
+struct MGMSubItem {
+	Movement *movement;
+	int staticsIndex;
+	int field_8;
+	int field_C;
+	int x;
+	int y;
+
+	MGMSubItem();
+};
+
+struct MGMItem {
+	int16 objId;
+	Common::Array<MGMSubItem *> subItems;
+	Common::Array<Statics *> statics;
+	Common::Array<Movement *> movements1;
+	Common::Array<int> movements2;
+
+	MGMItem();
+};
+
+struct MGMInfo {
+	StaticANIObject *ani;
+	int staticsId1;
+	int staticsId2;
+	int movementId;
+	int field_10;
+	int x1;
+	int y1;
+	int field_1C;
+	int x2;
+	int y2;
+	int flags;
+
+	MGMInfo() { memset(this, 0, sizeof(MGMInfo)); }
+};
+
+class MGM : public CObject {
+public:
+	Common::Array<MGMItem *> _items;
+
+public:
+	void clear();
+	void addItem(int objId);
+	void rebuildTables(int objId);
+	int getItemIndexById(int objId);
+
+	MessageQueue *genMovement(MGMInfo *mgminfo);
+	void updateAnimStatics(StaticANIObject *ani, int staticsId);
+	Common::Point *getPoint(Common::Point *point, int aniId, int staticsId1, int staticsId2);
+	int getStaticsIndexById(int idx, int16 id);
+	int getStaticsIndex(int idx, Statics *st);
+	void clearMovements2(int idx);
+	int recalcOffsets(int idx, int st1idx, int st2idx, bool flip, bool flop);
+	Common::Point *calcLength(Common::Point *point, Movement *mov, int x, int y, int *mult, int *len, int flag);
+	ExCommand2 *buildExCommand2(Movement *mov, int objId, int x1, int y1, Common::Point *x2, Common::Point *y2, int len);
+	MessageQueue *genMQ(StaticANIObject *ani, int staticsIndex, int staticsId, int *resStatId, Common::Point **pointArr);
+	int countPhases(int idx, int subIdx, int subOffset, int flag);
+	int refreshOffsets(int objectId, int idx1, int idx2);
+};
+
+} // End of namespace Fullpipe
+
+#endif /* FULLPIPE_MGM_H */
diff --git a/engines/fullpipe/module.mk b/engines/fullpipe/module.mk
index 3962fe64ba..96bd91fd39 100644
--- a/engines/fullpipe/module.mk
+++ b/engines/fullpipe/module.mk
@@ -15,6 +15,7 @@ MODULE_OBJS = \
 	lift.o \
 	messagehandlers.o \
 	messages.o \
+	mgm.o \
 	modal.o \
 	motion.o \
 	ngiarchive.o \
diff --git a/engines/fullpipe/motion.cpp b/engines/fullpipe/motion.cpp
index 2d2fdfa3bf..3a89be3a03 100644
--- a/engines/fullpipe/motion.cpp
+++ b/engines/fullpipe/motion.cpp
@@ -2779,693 +2779,6 @@ MovGraphNode *MovGraph::calcOffset(int ox, int oy) {
 	return res;
 }
 
-void MGM::clear() {
-	_items.clear();
-}
-
-MessageQueue *MGM::genMQ(StaticANIObject *ani, int staticsIndex, int staticsId, int *resStatId, Common::Point **pointArr) {
-	int idx = getItemIndexById(ani->_id);
-
-	if (idx == -1)
-		return 0;
-
-	int stid = staticsId;
-
-	if (!staticsId) {
-		if (ani->_movement) {
-			stid = ani->_movement->_staticsObj2->_staticsId;
-		} else {
-			if (!ani->_statics)
-				return 0;
-
-			stid = ani->_statics->_staticsId;
-		}
-	}
-
-	if (stid == staticsIndex)
-		return new MessageQueue(g_fp->_globalMessageQueueList->compact());
-
-	int startidx = getStaticsIndexById(idx, stid);
-	int endidx = getStaticsIndexById(idx, staticsIndex);
-	int subidx = startidx + endidx * _items[idx]->statics.size();
-
-	if (!_items[idx]->subItems[subidx]->movement) {
-		clearMovements2(idx);
-		recalcOffsets(idx, startidx, endidx, 0, 1);
-	}
-
-	if (!_items[idx]->subItems[subidx]->movement)
-		return 0;
-
-    MessageQueue *mq = new MessageQueue(g_fp->_globalMessageQueueList->compact());
-	Common::Point point;
-	ExCommand *ex;
-
-	int i = 0;
-	do {
-		subidx = startidx + endidx * _items[idx]->statics.size();
-
-		_items[idx]->subItems[subidx]->movement->calcSomeXY(point, 0, -1);
-
-		if (pointArr) {
-			int sz;
-
-			if (_items[idx]->subItems[subidx]->movement->_currMovement)
-				sz = _items[idx]->subItems[subidx]->movement->_currMovement->_dynamicPhases.size();
-			else
-				sz = _items[idx]->subItems[subidx]->movement->_dynamicPhases.size();
-
-			ex = new ExCommand2(20, ani->_id, &pointArr[i], sz);
-
-			ex->_messageNum = _items[idx]->subItems[subidx]->movement->_id;
-		} else {
-			ex = new ExCommand(ani->_id, 1, _items[idx]->subItems[subidx]->movement->_id, 0, 0, 0, 1, 0, 0, 0);
-		}
-
-		ex->_keyCode = ani->_okeyCode;
-		ex->_field_3C = 1;
-		ex->_field_24 = 1;
-
-		mq->addExCommandToEnd(ex);
-
-		if (resStatId)
-			*resStatId = _items[idx]->subItems[subidx]->movement->_id;
-
-		startidx = _items[idx]->subItems[subidx]->staticsIndex;
-
-		uint step;
-
-		if (_items[idx]->subItems[subidx]->movement->_currMovement)
-			step = _items[idx]->subItems[subidx]->movement->_currMovement->_dynamicPhases.size();
-		else
-			step = _items[idx]->subItems[subidx]->movement->_dynamicPhases.size();
-
-		i += step;
-	} while (startidx != endidx);
-
-	return mq;
-}
-
-MGMItem::MGMItem() {
-	objId = 0;
-}
-
-MGMSubItem::MGMSubItem() {
-	movement = 0;
-	staticsIndex = 0;
-	field_8 = 0;
-	field_C = 0;
-	x = 0;
-	y = 0;
-}
-
-void MGM::addItem(int objId) {
-	if (getItemIndexById(objId) == -1) {
-		MGMItem *item = new MGMItem();
-
-		item->objId = objId;
-		_items.push_back(item);
-	}
-	rebuildTables(objId);
-}
-
-void MGM::rebuildTables(int objId) {
-	int idx = getItemIndexById(objId);
-
-	if (idx == -1)
-		return;
-
-	_items[idx]->subItems.clear();
-	_items[idx]->statics.clear();
-	_items[idx]->movements1.clear();
-	_items[idx]->movements2.clear();
-
-	StaticANIObject *obj = g_fp->_currentScene->getStaticANIObject1ById(objId, -1);
-
-	if (!obj)
-		return;
-
-	for (uint i = 0; i < obj->_staticsList.size(); i++)
-		_items[idx]->statics.push_back((Statics *)obj->_staticsList[i]);
-
-	for (uint i = 0; i < obj->_movements.size(); i++)
-		_items[idx]->movements1.push_back((Movement *)obj->_movements[i]);
-
-	_items[idx]->subItems.clear();
-}
-
-int MGM::getItemIndexById(int objId) {
-	for (uint i = 0; i < _items.size(); i++)
-		if (_items[i]->objId == objId)
-			return i;
-
-	return -1;
-}
-
-MessageQueue *MGM::genMovement(MGMInfo *mgminfo) {
-	if (!mgminfo->ani)
-		return 0;
-
-	Movement *mov = mgminfo->ani->_movement;
-
-	if (!mov && !mgminfo->ani->_statics)
-		return 0;
-
-	if (!(mgminfo->flags & 1)) {
-		if (mov)
-			mgminfo->staticsId1 = mov->_staticsObj2->_staticsId;
-		else
-			mgminfo->staticsId1 = mgminfo->ani->_statics->_staticsId;
-	}
-
-	Common::Point point;
-
-	if (!(mgminfo->flags & 0x10) || !(mgminfo->flags & 0x20)) {
-		int nx = mgminfo->ani->_ox;
-		int ny = mgminfo->ani->_oy;
-
-		if (mgminfo->ani->_movement) {
-			mgminfo->ani->calcNextStep(&point);
-
-			nx += point.x;
-			ny += point.y;
-		}
-
-		if (!(mgminfo->flags & 0x10))
-			mgminfo->x2 = nx;
-
-		if (!(mgminfo->flags & 0x20))
-			mgminfo->y2 = ny;
-	}
-
-	mov = mgminfo->ani->getMovementById(mgminfo->movementId);
-
-	if (!mov)
-		return 0;
-
-	int itemIdx = getItemIndexById(mgminfo->ani->_id);
-	int subIdx = getStaticsIndexById(itemIdx, mgminfo->staticsId1);
-	int st2idx = getStaticsIndexById(itemIdx, mov->_staticsObj1->_staticsId);
-	int st1idx = getStaticsIndexById(itemIdx, mov->_staticsObj2->_staticsId);
-	int subOffset = getStaticsIndexById(itemIdx, mgminfo->staticsId2);
-
-	clearMovements2(itemIdx);
-	recalcOffsets(itemIdx, subIdx, st2idx, 0, 1);
-	clearMovements2(itemIdx);
-	recalcOffsets(itemIdx, st1idx, subOffset, 0, 1);
-
-	MGMSubItem *sub1 = _items[itemIdx]->subItems[subIdx + st2idx * _items[itemIdx]->statics.size()];
-	MGMSubItem *sub2 = _items[itemIdx]->subItems[st1idx + subOffset * _items[itemIdx]->statics.size()];
-
-	if (subIdx != st2idx && !sub1->movement)
-		return 0;
-
-	if (st1idx != subOffset && !sub2->movement)
-		return 0;
-
-	int n1x = mgminfo->x1 - mgminfo->x2 - sub1->x - sub2->x;
-	int n1y = mgminfo->y1 - mgminfo->y2 - sub1->y - sub2->y;
-
-	Common::Point point1;
-
-	mov->calcSomeXY(point1, 0, -1);
-
-	int n2x = point1.x;
-	int n2y = point1.y;
-	int mult;
-	int len = -1;
-
-	if (mgminfo->flags & 0x40) {
-		mult = mgminfo->field_10;
-		len = -1;
-		n2x *= mult;
-		n2y *= mult;
-	} else {
-		calcLength(&point, mov, n1x, n1y, &mult, &len, 1);
-		n2x = point.x;
-		n2y = point.y;
-	}
-
-	if (!(mgminfo->flags & 2)) {
-		len = -1;
-		n2x = mult * point1.x;
-		n1x = mult * point1.x;
-		mgminfo->x1 = mgminfo->x2 + mult * point1.x + sub1->x + sub2->x;
-	}
-
-	if (!(mgminfo->flags & 4)) {
-		n2y = mult * point1.y;
-		n1y = mult * point1.y;
-		len = -1;
-		mgminfo->y1 = mgminfo->y2 + mult * point1.y + sub1->y + sub2->y;
-	}
-
-	int px = 0;
-	int py = 0;
-
-	if (sub1->movement) {
-		px = countPhases(itemIdx, subIdx, st2idx, 1);
-		py = countPhases(itemIdx, subIdx, st2idx, 2);
-	}
-
-	if (mult > 1) {
-		px += (mult - 1) * mov->countPhasesWithFlag(-1, 1);
-		py += (mult - 1) * mov->countPhasesWithFlag(-1, 2);
-	}
-
-	if (mult > 0) {
-		px += mov->countPhasesWithFlag(len, 1);
-		py += mov->countPhasesWithFlag(len, 2);
-	}
-
-	if (sub2->movement) {
-		px += countPhases(itemIdx, st1idx, subOffset, 1);
-		py += countPhases(itemIdx, st1idx, subOffset, 2);
-	}
-
-	int dx1 = n1x - n2x;
-	int dy1 = n1y - n2y;
-	int x1, y1;
-
-	if (px) {
-		x1 = (int)((double)dx1 / (double)px);
-	} else {
-		x1 = 0;
-	}
-
-	if (py) {
-		y1 = (int)((double)dy1 / (double)py);
-	} else {
-		y1 = 0;
-	}
-
-	Common::Point x2, y2;
-
-	y2.x = dx1 - px * x1;
-	y2.y = dy1 - py * y1;
-
-	if (n1x - n2x == px * x1)
-		x2.x = 0;
-	else
-		x2.x = (dx1 - px * x1) / abs(dx1 - px * x1);
-
-	if (dy1 == py * y1)
-		x2.y = 0;
-	else
-		x2.y = (dy1 - py * y1) / abs(dy1 - py * y1);
-
-	MessageQueue *mq = new MessageQueue(g_fp->_globalMessageQueueList->compact());
-	ExCommand2 *ex2;
-
-	for (int i = subIdx; i != st2idx;) {
-		MGMSubItem *s = _items[itemIdx]->subItems[i + subOffset * _items[itemIdx]->statics.size()];
-
-		ex2 = buildExCommand2(s->movement, mgminfo->ani->_id, x1, y1, &x2, &y2, -1);
-		ex2->_parId = mq->_id;
-		ex2->_keyCode = mgminfo->ani->_okeyCode;
-
-		mq->addExCommandToEnd(ex2);
-
-		i = s->staticsIndex;
-	}
-
-	for (int i = 0; i < mult; ++i) {
-		int plen;
-
-		if (i == mult - 1)
-			plen = len;
-		else
-			plen = -1;
-
-		ex2 = buildExCommand2(mov, mgminfo->ani->_id, x1, y1, &x2, &y2, plen);
-		ex2->_parId = mq->_id;
-		ex2->_keyCode = mgminfo->ani->_okeyCode;
-
-		mq->addExCommandToEnd(ex2);
-	}
-
-	for (int j = st1idx; j != subOffset;) {
-		MGMSubItem *s = _items[itemIdx]->subItems[j + subOffset * _items[itemIdx]->statics.size()];
-
-		ex2 = buildExCommand2(s->movement, mgminfo->ani->_id, x1, y1, &x2, &y2, -1);
-		ex2->_parId = mq->_id;
-		ex2->_keyCode = mgminfo->ani->_okeyCode;
-
-		mq->addExCommandToEnd(ex2);
-
-		j = s->staticsIndex;
-	}
-
-	ExCommand *ex = new ExCommand(mgminfo->ani->_id, 5, -1, mgminfo->x1, mgminfo->y1, 0, 1, 0, 0, 0);
-
-	ex->_field_14 = mgminfo->field_1C;
-	ex->_keyCode = mgminfo->ani->_okeyCode;
-	ex->_field_24 = 0;
-	ex->_excFlags |= 3;
-
-	mq->addExCommandToEnd(ex);
-
-	return mq;
-}
-
-int MGM::countPhases(int idx, int subIdx, int endIdx, int flag) {
-	int res = 0;
-
-	if (endIdx < 0)
-		return 0;
-
-	while (subIdx != endIdx) {
-		if (subIdx < 0)
-			break;
-
-		res += _items[idx]->subItems[subIdx + endIdx * _items[idx]->statics.size()]->movement->countPhasesWithFlag(-1, flag);
-
-		subIdx = _items[idx]->subItems[subIdx + 6 * endIdx * _items[idx]->statics.size()]->staticsIndex;
-	}
-
-	return res;
-}
-void MGM::updateAnimStatics(StaticANIObject *ani, int staticsId) {
-	if (getItemIndexById(ani->_id) == -1)
-		return;
-
-	if (ani->_movement) {
-		ani->queueMessageQueue(0);
-		ani->_movement->gotoLastFrame();
-		ani->_statics = ani->_movement->_staticsObj2;
-
-		int x = ani->_movement->_ox;
-		int y = ani->_movement->_oy;
-
-		ani->_movement = 0;
-
-		ani->setOXY(x, y);
-	}
-
-	if (ani->_statics) {
-		Common::Point point;
-
-		getPoint(&point, ani->_id, ani->_statics->_staticsId, staticsId);
-
-		ani->setOXY(ani->_ox + point.x, ani->_oy + point.y);
-
-		ani->_statics = ani->getStaticsById(staticsId);
-	}
-}
-
-Common::Point *MGM::getPoint(Common::Point *point, int objectId, int staticsId1, int staticsId2) {
-	int idx = getItemIndexById(objectId);
-
-	if (idx == -1) {
-		point->x = -1;
-		point->y = -1;
-	} else {
-		int st1idx = getStaticsIndexById(idx, staticsId1);
-		int st2idx = getStaticsIndexById(idx, staticsId2);
-
-		if (st1idx == st2idx) {
-			point->x = 0;
-			point->y = 0;
-		} else {
-			int subidx = st1idx + st2idx * _items[idx]->statics.size();
-
-			if (!_items[idx]->subItems[subidx]->movement) {
-				clearMovements2(idx);
-				recalcOffsets(idx, st1idx, st2idx, false, true);
-
-				if (!_items[idx]->subItems[subidx]->movement) {
-					clearMovements2(idx);
-					recalcOffsets(idx, st1idx, st2idx, true, false);
-				}
-			}
-
-			MGMSubItem *sub = _items[idx]->subItems[subidx];
-
-			if (sub->movement) {
-				point->x = sub->x;
-				point->y = sub->y;
-			} else {
-				point->x = 0;
-				point->y = 0;
-			}
-		}
-	}
-
-	return point;
-}
-
-int MGM::getStaticsIndexById(int idx, int16 id) {
-	if (!_items[idx]->statics.size())
-		return -1;
-
-	for (uint i = 0; i < _items[idx]->statics.size(); i++) {
-		if (_items[idx]->statics[i]->_staticsId == id)
-			return i;
-	}
-
-	return 0;
-}
-
-int MGM::getStaticsIndex(int idx, Statics *st) {
-	if (!_items[idx]->statics.size())
-		return -1;
-
-	for (uint i = 0; i < _items[idx]->statics.size(); i++) {
-		if (_items[idx]->statics[i] == st)
-			return i;
-	}
-
-	return 0;
-}
-
-void MGM::clearMovements2(int idx) {
-	_items[idx]->movements2.clear();
-}
-
-int MGM::recalcOffsets(int idx, int st1idx, int st2idx, bool flip, bool flop) {
-	MGMItem *item = _items[idx];
-	int subIdx = st1idx + st2idx * item->statics.size();
-
-	if (st1idx == st2idx) {
-		memset(&item->subItems[subIdx], 0, sizeof(item->subItems[subIdx]));
-		return 0;
-	}
-
-	if (item->subItems[subIdx])
-		return item->subItems[subIdx]->field_8;
-
-	Common::Point point;
-
-	for (uint i = 0; i < item->movements1.size(); i++) {
-		Movement *mov = item->movements1[i];
-
-		if (mov->_staticsObj1 == item->statics[st1idx]) {
-			if (!item->movements2[i] && (!flop || mov->_field_50)) {
-				item->movements2[i] = 1;
-
-				int stidx = getStaticsIndex(idx, item->movements1[i]->_staticsObj2);
-				int recalc = recalcOffsets(idx, stidx, st2idx, flip, flop);
-				int sz = mov->_currMovement ? mov->_currMovement->_dynamicPhases.size() : mov->_dynamicPhases.size();
-				int newsz = sz + item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->field_C;
-
-				if (recalc >= 0) {
-					if (!item->subItems[subIdx]->movement || item->subItems[subIdx]->field_8 > recalc + 1 ||
-						(item->subItems[subIdx]->field_8 == recalc + 1 && item->subItems[subIdx]->field_C > newsz)) {
-						item->subItems[subIdx]->movement = mov;
-						item->subItems[subIdx]->staticsIndex = stidx;
-						item->subItems[subIdx]->field_8 = recalc + 1;
-						item->subItems[subIdx]->field_C = newsz;
-
-						mov->calcSomeXY(point, 0, -1);
-
-						item->subItems[subIdx]->x = item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->x + point.x;
-						item->subItems[subIdx]->y = item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->y + point.y;
-					}
-				}
-			}
-		} else if (flip) {
-			if (mov->_staticsObj2 == item->statics[st1idx]) {
-				if (!item->movements2[i] && (!flop || mov->_field_50)) {
-					item->movements2[i] = 1;
-
-					int stidx = getStaticsIndex(idx, mov->_staticsObj1);
-					int recalc = recalcOffsets(idx, stidx, st2idx, flip, flop);
-
-					if (recalc >= 0) {
-						if (!item->subItems[subIdx]->movement || item->subItems[subIdx]->field_8 > recalc + 1) {
-							item->subItems[subIdx]->movement = mov;
-							item->subItems[subIdx]->staticsIndex = stidx;
-							item->subItems[subIdx]->field_8 = recalc + 1;
-
-							int sz = mov->_currMovement ? mov->_currMovement->_dynamicPhases.size() : mov->_dynamicPhases.size();
-
-							item->subItems[subIdx]->field_C = sz + item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->field_C;
-
-							mov->calcSomeXY(point, 0, -1);
-
-							item->subItems[subIdx]->x = item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->x - point.x;
-							item->subItems[subIdx]->y = item->subItems[stidx + 6 * st2idx * _items[idx]->statics.size()]->y - point.y;
-						}
-					}
-				}
-			}
-		}
-	}
-
-	if (item->subItems[subIdx]->movement)
-		return item->subItems[subIdx]->field_8;
-
-	return -1;
-}
-
-int MGM::refreshOffsets(int objectId, int idx1, int idx2) {
-	int idx = getItemIndexById(objectId);
-
-	if (idx != -1) {
-		int from = getStaticsIndexById(idx, idx1);
-		int to = getStaticsIndexById(idx, idx2);
-
-		MGMSubItem *sub = _items[idx]->subItems[from + to * _items[idx]->statics.size()];
-
-		if (sub->movement) {
-			idx = sub->field_8;
-		} else {
-			clearMovements2(idx);
-			idx = recalcOffsets(idx, from, to, 0, 1);
-		}
-	}
-
-	return idx;
-}
-
-Common::Point *MGM::calcLength(Common::Point *pRes, Movement *mov, int x, int y, int *mult, int *len, int flag) {
-	Common::Point point;
-
-	mov->calcSomeXY(point, 0, -1);
-	int p1x = point.x;
-	int p1y = point.y;
-
-	int newmult = 0;
-	int oldlen = *len;
-
-	if (abs(p1y) > abs(p1x)) {
-		if (mov->calcSomeXY(point, 0, -1)->y)
-			newmult = (int)((double)y / mov->calcSomeXY(point, 0, -1)->y);
-	} else if (mov->calcSomeXY(point, 0, -1)->x) {
-		newmult = (int)((double)x / mov->calcSomeXY(point, 0, -1)->x);
-	}
-
-	if (newmult < 0)
-		newmult = 0;
-
-	*mult = newmult;
-
-	int phase = 1;
-	int sz;
-
-	if (flag) {
-		if (abs(p1y) > abs(p1x)) {
-			while (abs(p1y * newmult + mov->calcSomeXY(point, 0, phase)->y) < abs(y)) {
-				sz = mov->_currMovement ? mov->_currMovement->_dynamicPhases.size() : mov->_dynamicPhases.size();
-
-				if (phase > sz)
-					break;
-
-				phase++;
-			}
-		} else {
-			while (abs(p1x * newmult + mov->calcSomeXY(point, 0, phase)->x) < abs(x)) {
-				sz = mov->_currMovement ? mov->_currMovement->_dynamicPhases.size() : mov->_dynamicPhases.size();
-
-				if (phase >= sz)
-					break;
-
-				phase++;
-			}
-		}
-
-		*len = phase - 1;
-	} else {
-		*len = -1;
-	}
-
-	int p2x = 0;
-	int p2y = 0;
-
-	if (!oldlen)
-		oldlen = -1;
-
-	if (oldlen > 0) {
-		++*mult;
-
-		mov->calcSomeXY(point, 0, oldlen);
-		p2x = point.x;
-		p2y = point.y;
-
-		if (abs(p1y) > abs(p1x))
-			p2x = p1x;
-		else
-			p2y = p1y;
-	}
-
-	pRes->x = p2x + p1x * newmult;
-	pRes->y = p2y + p1y * newmult;
-
-	return pRes;
-}
-
-ExCommand2 *MGM::buildExCommand2(Movement *mov, int objId, int x1, int y1, Common::Point *x2, Common::Point *y2, int len) {
-	uint cnt;
-
-	if (mov->_currMovement)
-		cnt = mov->_currMovement->_dynamicPhases.size();
-	else
-		cnt = mov->_dynamicPhases.size();
-
-	if (len > 0 && cnt > (uint)len)
-		cnt = len;
-
-	Common::Point **points = (Common::Point **)malloc(sizeof(Common::Point *) * cnt);
-
-	for (uint i = 0; i < cnt; i++) {
-		int flags = mov->getDynamicPhaseByIndex(i)->getDynFlags();
-
-		points[i] = new Common::Point;
-
-		if (flags & 1) {
-			points[i]->x = x1 + x2->x;
-
-			y2->x -= x2->x;
-
-			if (!y2->x)
-				x2->x = 0;
-		}
-
-		if (flags & 2) {
-			points[i]->y = y1 + x2->y;
-
-			y2->y -= x2->y;
-
-			if (!y2->y)
-				x2->y = 0;
-		}
-	}
-
-	ExCommand2 *ex = new ExCommand2(20, objId, points, cnt);
-	ex->_excFlags = 2;
-	ex->_messageNum = mov->_id;
-	ex->_field_14 = len;
-	ex->_field_24 = 1;
-	ex->_keyCode = -1;
-
-	for (uint i = 0; i < cnt; i++)
-		delete points[i];
-
-	free(points);
-
-	return ex;
-}
-
 MovGraphLink::MovGraphLink() {
 	_distance = 0;
 	_angle = 0;
diff --git a/engines/fullpipe/motion.h b/engines/fullpipe/motion.h
index 3c0a05bbe7..c488039e22 100644
--- a/engines/fullpipe/motion.h
+++ b/engines/fullpipe/motion.h
@@ -23,14 +23,13 @@
 #ifndef FULLPIPE_MOTION_H
 #define FULLPIPE_MOTION_H
 
+#include "fullpipe/mgm.h"
+
 namespace Fullpipe {
 
-class Statics;
-class Movement;
 class MctlConnectionPoint;
 class MovGraphLink;
 class MessageQueue;
-class ExCommand2;
 struct MovArr;
 struct MovItem;
 
@@ -124,67 +123,6 @@ public:
 	MotionController *getMotionController(int num) { return _motionControllers[num]->_motionControllerObj; }
 };
 
-struct MGMSubItem {
-	Movement *movement;
-	int staticsIndex;
-	int field_8;
-	int field_C;
-	int x;
-	int y;
-
-	MGMSubItem();
-};
-
-struct MGMItem {
-	int16 objId;
-	Common::Array<MGMSubItem *> subItems;
-	Common::Array<Statics *> statics;
-	Common::Array<Movement *> movements1;
-	Common::Array<int> movements2;
-
-	MGMItem();
-};
-
-struct MGMInfo {
-	StaticANIObject *ani;
-	int staticsId1;
-	int staticsId2;
-	int movementId;
-	int field_10;
-	int x1;
-	int y1;
-	int field_1C;
-	int x2;
-	int y2;
-	int flags;
-
-	MGMInfo() { memset(this, 0, sizeof(MGMInfo)); }
-};
-
-class MGM : public CObject {
-public:
-	Common::Array<MGMItem *> _items;
-
-public:
-	void clear();
-	void addItem(int objId);
-	void rebuildTables(int objId);
-	int getItemIndexById(int objId);
-
-	MessageQueue *genMovement(MGMInfo *mgminfo);
-	void updateAnimStatics(StaticANIObject *ani, int staticsId);
-	Common::Point *getPoint(Common::Point *point, int aniId, int staticsId1, int staticsId2);
-	int getStaticsIndexById(int idx, int16 id);
-	int getStaticsIndex(int idx, Statics *st);
-	void clearMovements2(int idx);
-	int recalcOffsets(int idx, int st1idx, int st2idx, bool flip, bool flop);
-	Common::Point *calcLength(Common::Point *point, Movement *mov, int x, int y, int *mult, int *len, int flag);
-	ExCommand2 *buildExCommand2(Movement *mov, int objId, int x1, int y1, Common::Point *x2, Common::Point *y2, int len);
-	MessageQueue *genMQ(StaticANIObject *ani, int staticsIndex, int staticsId, int *resStatId, Common::Point **pointArr);
-	int countPhases(int idx, int subIdx, int subOffset, int flag);
-	int refreshOffsets(int objectId, int idx1, int idx2);
-};
-
 struct MctlLadderMovementVars {
 	int varUpGo;
 	int varDownGo;