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engines/grim/emi/skeleton.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 GRIM_SKELETON_H
+#define GRIM_SKELETON_H
+
+#include "common/hashmap.h"
+#include "common/hash-str.h"
+
+#include "math/mathfwd.h"
+#include "math/quat.h"
+
+#include "engines/grim/object.h"
+#include "engines/grim/actor.h"
+
+namespace Common {
+class SeekableReadStream;
+}
+
+namespace Grim {
+
+class AnimationStateEmi;
+class AnimationEmi;
+
+struct Joint {
+	Common::String _name;
+	Common::String _parent;
+	Math::Vector3d _trans;
+	Math::Quaternion _quat;
+	int _parentIndex;
+	Math::Matrix4 _absMatrix;
+	Math::Matrix4 _relMatrix;
+	Math::Matrix4 _animMatrix;
+	Math::Quaternion _animQuat;
+	Math::Matrix4 _finalMatrix;
+	Math::Quaternion _finalQuat;
+};
+
+struct JointAnimation {
+	Math::Vector3d _pos;
+	Math::Quaternion _quat;
+	float _transWeight;
+	float _rotWeight;
+};
+
+struct AnimationLayer {
+	JointAnimation* _jointAnims;
+};
+
+class Skeleton : public Object {
+
+	void loadSkeleton(Common::SeekableReadStream *data);
+	void initBone(int index);
+	void initBones();
+	void resetAnim();
+public:
+	// Note: EMI uses priority 5 at most.
+	static const int MAX_ANIMATION_LAYERS = 8;
+
+	int _numJoints;
+	Joint *_joints;
+
+	typedef Common::HashMap<Common::String, int, Common::IgnoreCase_Hash, Common::IgnoreCase_EqualTo> JointMap;
+	JointMap _jointsMap;
+
+	Skeleton(const Common::String &filename, Common::SeekableReadStream *data);
+	~Skeleton();
+	void animate();
+	void commitAnim();
+	void addAnimation(AnimationStateEmi *anim);
+	void removeAnimation(AnimationStateEmi *anim);
+	int findJointIndex(const Common::String &name) const;
+	bool hasJoint(const Common::String &name) const;
+	Joint *getJointNamed(const Common::String &name) const;
+	Joint *getParentJoint(const Joint *j) const;
+	int getJointIndex(const Joint *j) const;
+	AnimationLayer* getLayer(int priority) const;
+private:
+	AnimationLayer *_animLayers;
+	Common::List<AnimationStateEmi*> _activeAnims;
+};
+
+} // end of namespace Grim
+
+#endif