Initial commit

engines/stark/visual/actor.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/visual/actor.h"
+
+#include "engines/stark/model/model.h"
+#include "engines/stark/model/animhandler.h"
+#include "engines/stark/gfx/driver.h"
+#include "engines/stark/gfx/texture.h"
+#include "engines/stark/scene.h"
+#include "engines/stark/services/services.h"
+
+namespace Stark {
+
+VisualActor::VisualActor() :
+		Visual(TYPE),
+		_animHandler(nullptr),
+		_model(nullptr),
+		_textureSet(nullptr),
+		_textureSetFacial(nullptr),
+		_time(0),
+		_modelIsDirty(true),
+		_faceTextureName(' '),
+		_castsShadow(false) {
+}
+
+VisualActor::~VisualActor() {
+}
+
+void VisualActor::setModel(Model *model) {
+	if (_model == model) {
+		return; // Nothing to do
+	}
+
+	_model = model;
+	_modelIsDirty = true;
+}
+
+void VisualActor::setAnimHandler(AnimHandler *animHandler) {
+	_animHandler = animHandler;
+}
+
+void VisualActor::setTexture(Gfx::TextureSet *texture) {
+	_textureSet = texture;
+}
+
+void VisualActor::setTextureFacial(Gfx::TextureSet *textureFacial) {
+	_textureSetFacial = textureFacial;
+}
+
+void VisualActor::setNewFace(char shape) {
+	_faceTextureName = shape;
+}
+
+const Gfx::Texture *VisualActor::resolveTexture(const Material *material) const {
+	const Gfx::Texture *texture = nullptr;
+	// Emma's face material is incorrectly named "faceEmma".
+	// This workaround enables Emma's lipsync, which does not work in the original game engine.
+	if (_textureSetFacial && (material->name == "face" || material->name == "faceEmma")) {
+		texture = _textureSetFacial->getTexture(Common::String::format("%c.bmp", _faceTextureName));
+
+		if (!texture) {
+			// Default face texture in case the requested shape was not found
+			texture = _textureSetFacial->getTexture("i.bmp");
+		}
+	}
+
+	if (!texture) {
+		texture = _textureSet->getTexture(material->texture);
+	}
+
+	return texture;
+}
+
+void VisualActor::setTime(uint32 time) {
+	_time = time;
+}
+
+Math::Matrix4 VisualActor::getModelMatrix(const Math::Vector3d &position, float direction) const {
+	Math::Matrix4 modelMatrix;
+	modelMatrix.setPosition(position);
+
+	Math::Angle swayAngle = StarkScene->getSwayAngle();
+	if (swayAngle != 0) {
+		Math::Quaternion swayRotation = Math::Quaternion(StarkScene->getSwayDirection(), swayAngle / 2.0);
+		modelMatrix = modelMatrix * swayRotation.toMatrix();
+	}
+
+	float floatOffset = StarkScene->getFloatOffset();
+	if (floatOffset != 0) {
+		Math::Matrix4 floatTranslation;
+		floatTranslation.setPosition(Math::Vector3d(0, 0, floatOffset));
+		modelMatrix = modelMatrix * floatTranslation;
+	}
+
+	Math::Matrix4 rot1;
+	rot1.buildAroundX(90);
+
+	Math::Matrix4 rot2;
+	rot2.buildAroundY(270 - direction);
+
+	Math::Matrix4 scale;
+	scale.setValue(2, 2, -1.0f);
+
+	return modelMatrix * rot1 * rot2 * scale;
+}
+
+bool VisualActor::intersectRay(const Math::Ray &ray, const Math::Vector3d &position, float direction) {
+	Math::Matrix4 inverseModelMatrix = getModelMatrix(position, direction);
+	inverseModelMatrix.inverse();
+
+	// Build an object local ray from the world ray
+	Math::Ray localRay = ray;
+	localRay.transform(inverseModelMatrix);
+
+	return _model->intersectRay(localRay);
+}
+
+Common::Rect VisualActor::getBoundingRect(const Math::Vector3d &position3d, float direction) const {
+	Math::Matrix4 modelMatrix = getModelMatrix(position3d, direction);
+
+	Math::AABB modelSpaceBB = _model->getBoundingBox();
+	Math::Vector3d min = modelSpaceBB.getMin();
+	Math::Vector3d max = modelSpaceBB.getMax();
+
+	Math::Vector3d verts[8];
+	verts[0].set(min.x(), min.y(), min.z());
+	verts[1].set(max.x(), min.y(), min.z());
+	verts[2].set(min.x(), max.y(), min.z());
+	verts[3].set(min.x(), min.y(), max.z());
+	verts[4].set(max.x(), max.y(), min.z());
+	verts[5].set(max.x(), min.y(), max.z());
+	verts[6].set(min.x(), max.y(), max.z());
+	verts[7].set(max.x(), max.y(), max.z());
+
+	Common::Rect boundingRect;
+	for (int i = 0; i < 8; ++i) {
+		modelMatrix.transform(&verts[i], true);
+		Common::Point point = StarkScene->convertPosition3DToGameScreenOriginal(verts[i]);
+
+		if (i == 0) {
+			boundingRect.top = point.y;
+			boundingRect.bottom = point.y;
+			boundingRect.left = point.x;
+			boundingRect.right = point.x;
+		} else {
+			if (boundingRect.left > point.x) {
+				boundingRect.left = point.x;
+			}
+			if (boundingRect.right < point.x) {
+				boundingRect.right = point.x;
+			}
+			if (boundingRect.top > point.y) {
+				boundingRect.top = point.y;
+			}
+			if (boundingRect.bottom < point.y) {
+				boundingRect.bottom = point.y;
+			}
+		}
+	}
+
+	return boundingRect;
+}
+
+} // End of namespace Stark