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engines/tetraedge/te/te_model_vertex_animation.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 "tetraedge/te/te_model_vertex_animation.h"
+
+namespace Tetraedge {
+
+TeModelVertexAnimation::TeModelVertexAnimation() : _lastMillis(0.0f), _modelAnim(nullptr) {
+	_rot.fromAxisAndAngle(TeVector3f32(0.0f, 1.0f, 0.0f), (float)-M_PI_2);
+}
+
+void TeModelVertexAnimation::bind(TeIntrusivePtr<TeModel> &model) {
+	_model = model;
+	_lastMillis = 0.0f;
+}
+
+void TeModelVertexAnimation::destroy() {
+	_keydata.clear();
+}
+
+TeVector3f32 TeModelVertexAnimation::getKeyVertex(uint keyno, uint vertexno) {
+	assert(keyno < _keydata.size());
+	const KeyData &data = _keydata[keyno];
+	assert(vertexno < data._vectors.size());
+	TeVector3f32 retval = data._vectors[vertexno];
+	if (!data._matricies.empty()) {
+		retval = data._matricies[vertexno] * retval;
+		retval.rotate(_rot);
+	}
+	return retval;
+}
+
+Common::Array<TeVector3f32> TeModelVertexAnimation::getVertices() {
+	Common::Array<TeVector3f32> lerpVtx;
+
+	if (_keydata.size() < 2)
+		return lerpVtx;
+
+	float frame = fmod((_lastMillis / 1000.0) * 30, _keydata[_keydata.size() - 1]._frame);
+	uint keyno = 0;
+	while (keyno < _keydata.size() - 1 && _keydata[keyno]._frame < frame)
+		keyno++;
+
+	lerpVtx.resize(_keydata[0]._vectors.size());
+	float prevFrame = _keydata[keyno]._frame;
+	float nextFrame = _keydata[keyno + 1]._frame;
+	float interp = (frame - nextFrame) / (nextFrame - prevFrame);
+
+	for (uint i = 0; i < _keydata[0]._vectors.size(); i++) {
+		const TeVector3f32 prevVector = getKeyVertex(keyno, i);
+		const TeVector3f32 nextVector = getKeyVertex(keyno + 1, i);
+		lerpVtx[i] = prevVector * (1.0 - interp) + nextVector * interp;
+	}
+
+	return lerpVtx;
+}
+
+bool TeModelVertexAnimation::load(Common::ReadStream &stream) {
+	error("TODO: implement TeModelVertexAnimation::load");
+}
+
+void TeModelVertexAnimation::save(Common::WriteStream &stream) const {
+	error("TODO: implement TeModelVertexAnimation::save");
+}
+
+void TeModelVertexAnimation::update(double millis) {
+	if (_keydata.empty())
+		return;
+
+	double lastMillis = _lastMillis;
+	double lastFrame = fmod((lastMillis / 1000.0) * 30.0, _keydata.back()._frame);
+
+	if (_modelAnim) {
+		int frame = _modelAnim->calcCurrentFrame(millis);
+		millis = (frame * 1000.0) / 30.0;
+	}
+	_lastMillis = millis;
+	double thisFrame = fmod((millis / 1000.0) * 30.0, _keydata.back()._frame);
+	if (lastFrame > thisFrame)
+		_onFinishedSignal.call();
+}
+
+} // end namespace Tetraedge