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engines/grim/costume/head.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_HEAD_H
+#define GRIM_HEAD_H
+
+#include "math/matrix4.h"
+
+namespace Grim {
+
+class ModelNode;
+class SaveGame;
+
+class BaseHead {
+public:
+	virtual ~BaseHead() {}
+
+	virtual void lookAt(bool entering, const Math::Vector3d &point, float rate, const Math::Matrix4 &matrix) = 0;
+	virtual void saveState(SaveGame *state) const = 0;
+	virtual void restoreState(SaveGame *state) = 0;
+	virtual void loadJoints(ModelNode *nodes) = 0;
+};
+
+class Head : public BaseHead {
+public:
+	class Joint {
+	public:
+		Joint();
+
+		void init(ModelNode *node);
+
+		void orientTowards(bool entering, const Math::Vector3d &point, float rate, const Math::Matrix4 &matrix,
+						   float maxPitch, float maxYaw, float maxRoll, float constrain);
+
+		void saveState(SaveGame *state) const;
+		void restoreState(SaveGame *state);
+
+	private:
+		ModelNode *_node;
+
+		Math::Angle _pitch;
+		Math::Angle _yaw;
+		Math::Angle _roll;
+	};
+
+	Head();
+
+	void setJoints(int joint1, int joint2, int joint3);
+	void loadJoints(ModelNode *nodes);
+	void setMaxAngles(float maxPitch, float maxYaw, float maxRoll);
+
+	void lookAt(bool entering, const Math::Vector3d &point, float rate, const Math::Matrix4 &matrix);
+
+	void saveState(SaveGame *state) const;
+	void restoreState(SaveGame *state);
+
+	int getJoint1() const { return _joint1Node; }
+	int getJoint2() const { return _joint2Node; }
+	int getJoint3() const { return _joint3Node; }
+
+private:
+	int _joint1Node;
+	int _joint2Node;
+	int _joint3Node;
+	float _maxRoll;
+	float _maxPitch;
+	float _maxYaw;
+
+	// Specifies the three head joint bones of this character.
+	// These joint bones are animated by the moveHead function to make
+	// the characters face different directions.
+	// Note that for some characters, these variables may all be equal.
+	Joint _joint1;
+	Joint _joint2;
+	Joint _joint3;
+};
+
+} // end of namespace Grim
+
+#endif