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engines/wintermute/ext/wme_displacement.cpp

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+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "engines/metaengine.h"
+#include "engines/wintermute/wintermute.h"
+#include "engines/wintermute/base/base_game.h"
+#include "engines/wintermute/base/base_engine.h"
+#include "engines/wintermute/base/scriptables/script_stack.h"
+#include "engines/wintermute/base/scriptables/script_value.h"
+#include "engines/wintermute/ext/wme_displacement.h"
+
+namespace Wintermute {
+
+IMPLEMENT_PERSISTENT(SXDisplacement, false)
+
+BaseScriptable *makeSXDisplacement(BaseGame *inGame, ScStack *stack) {
+	return new SXDisplacement(inGame, stack);
+}
+
+//////////////////////////////////////////////////////////////////////////
+SXDisplacement::SXDisplacement(BaseGame *inGame, ScStack *stack) : BaseScriptable(inGame) {
+	stack->correctParams(5);
+
+	_subFrameSrc = static_cast<BaseSubFrame *>(stack->pop()->getNative());
+	_subFrameDst = static_cast<BaseSubFrame *>(stack->pop()->getNative());
+	_forceX = stack->pop()->getInt();
+	_forceY = stack->pop()->getInt();
+	_speed = stack->pop()->getInt();
+	_animIndex = 0;
+
+	for (int32 i = 0; i < 1024; i++) {
+		_tableX[i] = sin(i * 6.283 / 128.0);
+		_tableY[i] = cos(i * 6.283 / 128.0);
+	}
+
+	int32 width = _subFrameSrc->getWidth();
+	int32 height = _subFrameSrc->getHeight();
+
+	_subFrameSrc->startPixelOperations();
+	_subFrameDst->startPixelOperations();
+
+	for (int32 y = 0; y < height; y++) {
+		for (int32 x = 0; x < width; x++) {
+			uint32 pixel = _subFrameSrc->getPixel(x, y);
+			_subFrameDst->putPixel(x, y, pixel);
+		}
+	}
+
+	_subFrameSrc->endPixelOperations();
+	_subFrameDst->endPixelOperations();
+}
+
+//////////////////////////////////////////////////////////////////////////
+SXDisplacement::~SXDisplacement() {
+}
+
+//////////////////////////////////////////////////////////////////////////
+const char *SXDisplacement::scToString() {
+	return "[displacement object]";
+}
+
+//////////////////////////////////////////////////////////////////////////
+bool SXDisplacement::scCallMethod(ScScript *script, ScStack *stack, ScStack *thisStack, const char *name) {
+	//////////////////////////////////////////////////////////////////////////
+	// SetMe()
+	//////////////////////////////////////////////////////////////////////////
+	if (strcmp(name, "SetMe") == 0) {
+		stack->correctParams(2);
+
+		_subFrameSrc = static_cast<BaseSubFrame *>(stack->pop()->getNative());
+		_subFrameDst = static_cast<BaseSubFrame *>(stack->pop()->getNative());
+
+		stack->pushBool(false);
+		return STATUS_OK;
+	}
+
+	//////////////////////////////////////////////////////////////////////////
+	// Setforces()
+	//////////////////////////////////////////////////////////////////////////
+	if (strcmp(name, "Setforces") == 0) {
+		stack->correctParams(3);
+
+		_forceX = stack->pop()->getInt();
+		_forceY = stack->pop()->getInt();
+		_speed = stack->pop()->getInt();
+
+		stack->pushBool(false);
+		return STATUS_OK;
+	}
+
+	//////////////////////////////////////////////////////////////////////////
+	// Animate()
+	//////////////////////////////////////////////////////////////////////////
+	if (strcmp(name, "Animate") == 0) {
+		stack->correctParams(0);
+
+		if (_subFrameSrc) {
+			int32 width = _subFrameSrc->getWidth();
+			int32 height = _subFrameSrc->getHeight();
+
+			_subFrameSrc->startPixelOperations();
+			_subFrameDst->startPixelOperations();
+
+			for (int32 y = 0; y < height; y++) {
+				for (int32 x = 0; x < width; x++) {
+					uint32 pixel = _subFrameSrc->getPixel(x, y);
+					_subFrameDst->putPixel(x, y, pixel);
+				}
+			}
+
+			_animIndex += _speed;
+			if (_animIndex > 128)
+				_animIndex = 0;
+
+			for (int32 y = 0; y < height; y++) {
+				for (int32 x = 0; x < width; x++) {
+					uint32 pixel = _subFrameSrc->getPixel(x, y);
+					int32 offsetX = (int32)(_forceX * _tableX[_animIndex + x]);
+					int32 offsetY = (int32)(_forceY * _tableY[_animIndex + y]);
+					if (width > (x + offsetX) &&
+					    height > (y + offsetY) &&
+					    (x + offsetX) >= 0 &&
+					    (y + offsetY) >= 0) {
+						_subFrameDst->putPixel(x + offsetX, y + offsetY, pixel);
+					}
+				}
+			}
+
+			_subFrameSrc->endPixelOperations();
+			_subFrameDst->endPixelOperations();
+
+			stack->pushBool(true);
+			return STATUS_OK;
+		} else {
+			stack->pushBool(false);
+		}
+	}
+
+	return STATUS_FAILED;
+}
+
+//////////////////////////////////////////////////////////////////////////
+ScValue *SXDisplacement::scGetProperty(const char *name) {
+	_scValue->setNULL();
+
+	//////////////////////////////////////////////////////////////////////////
+	// ForceX
+	//////////////////////////////////////////////////////////////////////////
+	if (strcmp(name, "ForceX") == 0) {
+		_scValue->setInt(_forceX);
+		return _scValue;
+	}
+
+	//////////////////////////////////////////////////////////////////////////
+	// ForceY
+	//////////////////////////////////////////////////////////////////////////
+	if (strcmp(name, "ForceY") == 0) {
+		_scValue->setInt(_forceY);
+		return _scValue;
+	}
+
+	//////////////////////////////////////////////////////////////////////////
+	// Speed
+	//////////////////////////////////////////////////////////////////////////
+	if (strcmp(name, "Speed") == 0) {
+		_scValue->setInt(_speed);
+		return _scValue;
+	}
+
+	else {
+		return _scValue;
+	}
+}
+
+//////////////////////////////////////////////////////////////////////////
+bool SXDisplacement::scSetProperty(const char *name, ScValue *value) {
+	//////////////////////////////////////////////////////////////////////////
+	// ForceX
+	//////////////////////////////////////////////////////////////////////////
+	if (strcmp(name, "ForceX") == 0) {
+		_forceX = _scValue->getInt();
+		return STATUS_OK;
+	}
+
+	//////////////////////////////////////////////////////////////////////////
+	// ForceY
+	//////////////////////////////////////////////////////////////////////////
+	if (strcmp(name, "ForceY") == 0) {
+		_forceY = _scValue->getInt();
+		return STATUS_OK;
+	}
+
+	//////////////////////////////////////////////////////////////////////////
+	// Speed
+	//////////////////////////////////////////////////////////////////////////
+	if (strcmp(name, "Speed") == 0) {
+		_speed = _scValue->getInt();
+		return STATUS_OK;
+	}
+
+	return STATUS_FAILED;
+}
+
+//////////////////////////////////////////////////////////////////////////
+bool SXDisplacement::persist(BasePersistenceManager *persistMgr) {
+	BaseScriptable::persist(persistMgr);
+
+	persistMgr->transferPtr(TMEMBER_PTR(_subFrameSrc));
+	persistMgr->transferPtr(TMEMBER_PTR(_subFrameDst));
+	persistMgr->transferSint32(TMEMBER(_forceX));
+	persistMgr->transferSint32(TMEMBER(_forceY));
+	persistMgr->transferSint32(TMEMBER(_speed));
+	persistMgr->transferSint32(TMEMBER(_animIndex));
+
+	if (!persistMgr->getIsSaving()) {
+		for (int32 i = 0; i < 1024; i++) {
+			_tableX[i] = sin(i * 6.283 / 128.0);
+			_tableY[i] = cos(i * 6.283 / 128.0);
+		}
+	}
+
+	return STATUS_OK;
+}
+
+} // End of namespace Wintermute