Initial commit

engines/stark/resources/layer.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/stark/resources/layer.h"
+
+#include "engines/stark/formats/xrc.h"
+
+#include "engines/stark/resources/camera.h"
+#include "engines/stark/resources/item.h"
+#include "engines/stark/resources/light.h"
+
+#include "engines/stark/services/services.h"
+#include "engines/stark/services/stateprovider.h"
+
+#include "engines/stark/scene.h"
+
+#include "common/debug.h"
+
+namespace Stark {
+namespace Resources {
+
+Object *Layer::construct(Object *parent, byte subType, uint16 index, const Common::String &name) {
+	switch (subType) {
+	case kLayer2D:
+		return new Layer2D(parent, subType, index, name);
+	case kLayer3D:
+		return new Layer3D(parent, subType, index, name);
+	default:
+		error("Unknown layer subtype %d", subType);
+	}
+}
+
+Layer::~Layer() {
+}
+
+Layer::Layer(Object *parent, byte subType, uint16 index, const Common::String &name) :
+		Object(parent, subType, index, name),
+		_scrollScale(1.0),
+		_enabled(true) {
+	_type = TYPE;
+}
+
+void Layer::readData(Formats::XRCReadStream *stream) {
+	_scrollScale = stream->readFloatLE();
+	if (_scrollScale > 10.0 || _scrollScale < -1.0)
+		_scrollScale = 0;
+}
+
+void Layer::printData() {
+	debug("scrollScale: %f", _scrollScale);
+	debug("enabled: %d", _enabled);
+}
+
+void Layer::setScrollPosition(const Common::Point &position) {
+	// The location scroll position is scaled to create a parallax effect
+	_scroll.x = (_scrollScale + 1.0) * (float) position.x;
+	_scroll.y = (_scrollScale + 1.0) * (float) position.y;
+}
+
+Common::Point Layer::getScroll() const {
+	return _scroll;
+}
+
+void Layer::setScroll(const Common::Point &scroll) {
+	_scroll = scroll;
+}
+
+bool Layer::isEnabled() const {
+	return _enabled;
+}
+
+void Layer::enable(bool enabled) {
+	_enabled = enabled;
+}
+
+Gfx::LightEntryArray Layer::listLightEntries() {
+	Common::Array<Light *> lights = listChildren<Light>();
+
+	Gfx::LightEntryArray lightEntries;
+	for (uint i = 0; i < lights.size(); i++) {
+		lightEntries.push_back(lights[i]->getLightEntry());
+	}
+
+	return lightEntries;
+}
+
+void Layer::saveLoad(ResourceSerializer *serializer) {
+	serializer->syncAsSint32LE(_enabled);
+}
+
+void Layer::saveLoadCurrent(ResourceSerializer *serializer) {
+	serializer->syncAsSint32LE(_scroll.x);
+	serializer->syncAsSint32LE(_scroll.y);
+}
+
+Layer2D::~Layer2D() {
+}
+
+Layer2D::Layer2D(Object *parent, byte subType, uint16 index, const Common::String &name) :
+		Layer(parent, subType, index, name) {
+}
+
+void Layer2D::readData(Formats::XRCReadStream *stream) {
+	Layer::readData(stream);
+
+	uint32 itemsCount = stream->readUint32LE();
+	for (uint i = 0; i < itemsCount; i++) {
+		uint32 itemIndex = stream->readUint32LE();
+		_itemIndices.push_back(itemIndex);
+	}
+
+	_enabled = stream->readBool();
+}
+
+void Layer2D::onEnterLocation() {
+	Layer::onEnterLocation();
+
+	Common::Array<Item *> items = listChildren<Item>();
+
+	// Build the item list in the appropriate order
+	_items.clear();
+	for (uint i = 0; i < _itemIndices.size(); i++) {
+		for (uint j = 0; j < items.size(); j++) {
+			if (items[j]->getIndex() == _itemIndices[i]) {
+				_items.push_back(items[j]);
+				break;
+			}
+		}
+	}
+}
+
+void Layer2D::onExitLocation() {
+	Layer::onExitLocation();
+
+	_items.clear();
+}
+
+Gfx::RenderEntryArray Layer2D::listRenderEntries() {
+	Gfx::RenderEntryArray renderEntries;
+	for (uint i = 0; i < _items.size(); i++) {
+		Item *item = _items[i];
+
+		Gfx::RenderEntry *renderEntry = item->getRenderEntry(_scroll);
+
+		if (!renderEntry) {
+			// warning("No render entry for item '%s'", item->getName().c_str());
+			continue;
+		}
+
+		renderEntries.push_back(renderEntry);
+	}
+
+	return renderEntries;
+}
+
+void Layer2D::printData() {
+	Layer::printData();
+}
+
+Layer3D::~Layer3D() {
+}
+
+Layer3D::Layer3D(Object *parent, byte subType, uint16 index, const Common::String &name) :
+		Layer(parent, subType, index, name),
+		_shouldRenderShadows(true),
+		_maxShadowLength(75),
+		_nearClipPlane(100.0),
+		_farClipPlane(64000.0),
+		_backgroundItem(nullptr) {
+}
+
+void Layer3D::readData(Formats::XRCReadStream *stream) {
+	Layer::readData(stream);
+
+	_shouldRenderShadows = stream->readBool();
+	_nearClipPlane = stream->readFloatLE();
+	_farClipPlane = stream->readFloatLE();
+	if (stream->isDataLeft()) {
+		_maxShadowLength = stream->readUint32LE();
+	}
+}
+
+void Layer3D::onAllLoaded() {
+	Layer::onAllLoaded();
+
+	_items = listChildren<Item>();
+	_backgroundItem = findChildWithSubtype<Item>(Item::kItemBackground);
+
+	Camera *camera = findChild<Camera>();
+	camera->setClipPlanes(_nearClipPlane, _farClipPlane);
+}
+
+void Layer3D::onEnterLocation() {
+	Layer::onEnterLocation();
+
+	StarkScene->setupShadows(_shouldRenderShadows, _maxShadowLength / 1000.0f);
+}
+
+Gfx::RenderEntry *Layer3D::getBackgroundRenderEntry() {
+	if (!_backgroundItem) {
+		return nullptr;
+	}
+
+	return _backgroundItem->getRenderEntry(_scroll);
+}
+
+Gfx::RenderEntryArray Layer3D::listRenderEntries() {
+	// Sort the items by distance to the camera
+	Gfx::RenderEntryArray itemEntries;
+	for (uint i = 0; i < _items.size(); i++) {
+		Item *item = _items[i];
+
+		if (item->getSubType() != Item::kItemBackground) {
+			Gfx::RenderEntry *renderEntry = item->getRenderEntry(_scroll);
+
+			if (!renderEntry) {
+				// warning("No render entry for item '%s'", item->getName().c_str());
+				continue;
+			}
+
+			itemEntries.push_back(renderEntry);
+		}
+	}
+	Common::sort(itemEntries.begin(), itemEntries.end(), Gfx::RenderEntry::compare);
+
+	Gfx::RenderEntryArray renderEntries;
+
+	// Add the background render entry to the list first
+	Gfx::RenderEntry *backgroundRenderEntry = getBackgroundRenderEntry();
+	if (backgroundRenderEntry) {
+		renderEntries.push_back(backgroundRenderEntry);
+	}
+
+	// Add the other items
+	renderEntries.push_back(itemEntries);
+
+	return renderEntries;
+}
+
+void Layer3D::printData() {
+	Layer::printData();
+
+	debug("shouldRenderShadows: %d", _shouldRenderShadows);
+	debug("maxShadowLength: %d", _maxShadowLength);
+	debug("nearClipPlane: %f", _nearClipPlane);
+	debug("farClipPlane: %f", _farClipPlane);
+}
+
+} // End of namespace Resources
+} // End of namespace Stark