Initial commit

engines/titanic/star_control/fpose.h

@@ -0,0 +1,106 @@
+/* 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 TITANIC_FPOSE_H
+#define TITANIC_FPOSE_H
+
+#include "titanic/star_control/fmatrix.h"
+
+namespace Titanic {
+
+class CMatrixTransform;
+
+/*
+ * This class combines a position and orientation in 3D space
+ */
+class FPose : public FMatrix {
+public:
+	FVector _vector;
+public:
+	FPose();
+	FPose(Axis axis, float amount);
+	FPose(int mode, const FVector &src);
+	/**
+	 * This fpose is the fpose product of s1 (on the left) and s2 (on the right)
+	 */
+	FPose(const FPose &s1, const FPose &s2);
+
+	/**
+	 * Sets an identity matrix
+	 */
+	void identity();
+
+	/**
+	 * Sets a rotation matrix for the given axis for the given amount
+	 */
+	void setRotationMatrix(Axis axis, float val);
+
+	/**
+	 * Rotate this FPose about the Y axis
+	 */
+	void rotVectAxisY(double angleDeg);
+	/**
+	 * Copy from the specified source pose
+	 */
+	void copyFrom(const FPose &src);
+
+	/**
+	 * Copy from the specified source matrix
+	 */
+	void copyFrom(const FMatrix &src);
+
+	/**
+	 * Change this Daffine to have its first three columns be some mapping from src matrix
+	 * and the 4rth column to be (three) zeros. The mapping is not as simple as replacing
+	 * matching row/colmn indices
+	 */
+	void loadTransform(const CMatrixTransform &src);
+
+	/**
+	 * The inverse of rotation and the position vector
+	 */
+	FPose inverseTransform() const;
+
+	/**
+	 * Multiplication between this FPose (4x3) and a FMatrix (3x3)
+	 * This is done by making the matrix be a FPose with a last row
+	 * of zeros
+	 */
+	FPose compose(const FMatrix &m);
+
+	/**
+	 * Multiplication between this FPose (4x3) and another FPose
+	 * This FPose is on the left and m is on the right.
+	 * The last row of m is added to the output component wise
+	 */
+	FPose compose2(const FPose &m);
+};
+
+/**
+ * Puts the fpose product between a and m in C, C = am
+ * Caller must preallocate output matrix
+ * Similar to matProd
+ */
+void fposeProd(const FPose &a, const FPose &m, FPose &C);
+
+} // End of namespace Titanic
+
+#endif /* TITANIC_FPOSE_H */