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engines/twine/parser/anim.h

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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/>.
+ *
+ */
+
+#ifndef TWINE_PARSER_ANIM_H
+#define TWINE_PARSER_ANIM_H
+
+#include "common/array.h"
+#include "common/stream.h"
+#include "twine/parser/parser.h"
+#include "twine/shared.h"
+
+namespace TwinE {
+
+enum BoneType : uint16 {
+	TYPE_ROTATE = 0,
+	TYPE_TRANSLATE = 1,
+	TYPE_ZOOM = 2,
+};
+
+struct BoneFrame { // T_GROUP_INFO
+	BoneType type = BoneType::TYPE_ROTATE;
+	int16 x = 0; // alpha
+	int16 y = 0; // beta
+	int16 z = 0; // gamma
+};
+using T_GROUP_INFO = BoneFrame; // (lba2)
+
+struct KeyFrame {
+	uint16 length = 0;
+	int16 x = 0;
+	int16 y = 0;
+	int16 z = 0;
+	int16 animMasterRot = 0;
+	int16 animStepAlpha = 0;
+	int16 animStepBeta = 0;
+	int16 animStepGamma = 0;
+	Common::Array<BoneFrame> boneframes;
+};
+
+class AnimData : public Parser {
+private:
+	Common::Array<KeyFrame> _keyframes;
+
+	void loadBoneFrame(KeyFrame &keyframe, Common::SeekableReadStream &stream);
+	void loadKeyFrames(Common::SeekableReadStream &stream);
+
+	uint16 _numKeyframes;
+	uint16 _numBoneframes;
+	uint16 _loopFrame;
+
+protected:
+	void reset() override;
+
+public:
+	bool loadFromStream(Common::SeekableReadStream &stream, bool lba1) override;
+
+	const KeyFrame *getKeyframe(uint index) const;
+	const Common::Array<KeyFrame> &getKeyframes() const;
+	uint getNbFramesAnim() const;
+	uint16 getLoopFrame() const;
+	uint16 getNumBoneframes() const;
+};
+
+inline uint AnimData::getNbFramesAnim() const {
+	return getKeyframes().size();
+}
+
+} // End of namespace TwinE
+
+#endif