LASTEXPRESS: Refactor Fight class

 - Replace structs holding function pointers by proper classes
 - Move each fighter functions to separate files

1 files changed, 248 insertions, 0 deletions

diff --git a/engines/lastexpress/fight/fighter.cpp b/engines/lastexpress/fight/fighter.cpp
new file mode 100644
index 0000000000..fcd69183fb
--- /dev/null
+++ b/engines/lastexpress/fight/fighter.cpp
@@ -0,0 +1,248 @@
+/* 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 "lastexpress/fight/fighter.h"
+
+#include "lastexpress/data/sequence.h"
+
+#include "lastexpress/game/scenes.h"
+#include "lastexpress/game/sound.h"
+
+#include "lastexpress/helpers.h"
+#include "lastexpress/lastexpress.h"
+
+namespace LastExpress {
+
+Fighter::Fighter(LastExpressEngine *engine) : _engine(engine) {
+	_opponent = NULL;
+	_fight = NULL;
+
+	_sequenceIndex = 0;
+	_sequence = NULL;
+	_frame = NULL;
+	_frameIndex = 0;
+
+	_field_24 = 0;
+
+	_action = kFightAction101;
+	_sequenceIndex2 = 0;
+
+	_countdown = 1;
+
+	_field_34 = 0;
+}
+
+Fighter::~Fighter() {
+	clearSequences();
+}
+
+//////////////////////////////////////////////////////////////////////////
+// Cleanup
+//////////////////////////////////////////////////////////////////////////
+void Fighter::clearSequences() {
+	// The original game resets the function pointers to default values, just before deleting the struct
+
+	getScenes()->removeAndRedraw(&_frame, false);
+
+	// Free sequences
+	for (int i = 0; i < (int)_sequences.size(); i++)
+		SAFE_DELETE(_sequences[i]);
+}
+
+//////////////////////////////////////////////////////////////////////////
+// Drawing
+//////////////////////////////////////////////////////////////////////////
+void Fighter::setSequenceAndDraw(uint32 sequenceIndex, FightSequenceType type) {
+	if (_sequences.size() < sequenceIndex)
+		return;
+
+	switch (type) {
+	default:
+		break;
+
+	case kFightSequenceType0:
+		if (_sequenceIndex)
+			return;
+
+		_sequence = _sequences[sequenceIndex];
+		_sequenceIndex = sequenceIndex;
+		draw();
+		break;
+
+	case kFightSequenceType1:
+		_sequence = _sequences[sequenceIndex];
+		_sequenceIndex = sequenceIndex;
+		_sequenceIndex2 = 0;
+		draw();
+		break;
+
+	case kFightSequenceType2:
+		_sequenceIndex2 = sequenceIndex;
+		break;
+	}
+}
+
+void Fighter::draw() {
+	getScenes()->removeAndRedraw(&_frame, false);
+
+	_frameIndex = 0;
+	_field_24 = 0;
+}
+
+//////////////////////////////////////////////////////////////////////////
+// Processing
+//////////////////////////////////////////////////////////////////////////
+void Fighter::process() {
+	if (!_sequence) {
+		if (_frame) {
+			getScenes()->removeFromQueue(_frame);
+			getScenes()->setCoordinates(_frame);
+		}
+		SAFE_DELETE(_frame);
+		return;
+	}
+
+	if (_sequence->count() <= _frameIndex) {
+		switch(_action) {
+		default:
+			break;
+
+		case kFightAction101:
+			setSequenceAndDraw(_sequenceIndex2, kFightSequenceType1);
+			_sequenceIndex2 = 0;
+			break;
+
+		case kFightActionResetFrame:
+			_frameIndex = 0;
+			break;
+
+		case kFightAction103:
+			setSequenceAndDraw(0, kFightSequenceType1);
+			handleAction(kFightAction101);
+			_opponent->setSequenceAndDraw(0, kFightSequenceType1);
+			_opponent->handleAction(kFightAction101);
+			_opponent->update();
+			break;
+
+		case kFightActionWin:
+			_fight->bailout(Fight::kFightEndWin);
+			break;
+
+		case kFightActionLost:
+			_fight->bailout(Fight::kFightEndLost);
+			break;
+		}
+	}
+
+	if (_fight->isRunning()) {
+
+		// Get the current sequence frame
+		SequenceFrame *frame = new SequenceFrame(_sequence, (uint16)_frameIndex);
+		frame->getInfo()->location = 1;
+
+		if (_frame == frame) {
+			delete frame;
+			return;
+		}
+
+		getSound()->playFightSound(frame->getInfo()->soundAction, frame->getInfo()->field_31);
+
+		// Add current frame to queue and advance
+		getScenes()->addToQueue(frame);
+		_frameIndex++;
+
+		if (_frame) {
+			getScenes()->removeFromQueue(_frame);
+
+			if (!frame->getInfo()->field_2E)
+				getScenes()->setCoordinates(_frame);
+		}
+
+		// Replace by new frame
+		delete _frame;
+		_frame = frame;
+	}
+}
+
+//////////////////////////////////////////////////////////////////////////
+// Default actions
+//////////////////////////////////////////////////////////////////////////
+void Fighter::handleAction(FightAction action) {
+	switch (action) {
+	default:
+		return;
+
+	case kFightAction101:
+		break;
+
+	case kFightActionResetFrame:
+		_countdown--;
+		break;
+
+	case kFightAction103:
+		_opponent->handleAction(kFightActionResetFrame);
+		break;
+
+	case kFightActionWin:
+		_fight->setEndType(Fight::kFightEndWin);
+		_opponent->handleAction(kFightActionResetFrame);
+		break;
+
+	case kFightActionLost:
+		_fight->setEndType(Fight::kFightEndLost);
+		_opponent->handleAction(kFightActionResetFrame);
+		break;
+	}
+
+	// Update action
+	_action = action;
+}
+
+bool Fighter::canInteract(FightAction /*action = kFightActionNone*/ ) {
+	return (_action == kFightAction101 && !_sequenceIndex);
+}
+
+void Fighter::update() {
+	process();
+
+	if (_frame)
+		_frame->getInfo()->location = (_action == kFightActionResetFrame ? 2 : 0);
+}
+
+void Opponent::update() {
+	process();
+
+	if (_field_38 && !_sequenceIndex)
+		_field_38--;
+
+	if (_frame)
+		_frame->getInfo()->location = 1;
+}
+
+//////////////////////////////////////////////////////////////////////////
+// Helpers
+//////////////////////////////////////////////////////////////////////////
+bool Fighter::checkFrame(uint32 val) {
+	return (_frame->getInfo()->field_33 & val);
+}
+
+} // End of namespace LastExpress