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engines/watchmaker/3d/math/llmath.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 WATCHMAKER_LLMATH_H
+#define WATCHMAKER_LLMATH_H
+
+#include "watchmaker/t3d.h"
+
+namespace Watchmaker {
+
+void t3dMatCopy(t3dM3X3F *d, t3dM3X3F *s);
+void t3dMatIdentity(t3dM3X3F *d);
+void t3dMatSet(t3dM3X3F *d,
+               t3dF32 _m11, t3dF32 _m12, t3dF32 _m13,
+               t3dF32 _m21, t3dF32 _m22, t3dF32 _m23,
+               t3dF32 _m31, t3dF32 _m32, t3dF32 _m33);
+void t3dMatMul(t3dM3X3F *Dest, t3dM3X3F *a, t3dM3X3F *b);
+void t3dMatRotAxis(t3dM3X3F *m, t3dF32 x, t3dF32 y, t3dF32 z, t3dF32 rad);
+void t3dMatRot(t3dM3X3F *matrix, t3dF32 x, t3dF32 y, t3dF32 z);
+void t3dMatReflect(t3dM3X3F *Matrix, t3dV3F *mirrorpos, t3dNORMAL *n);
+void t3dMatView(t3dM3X3F *dest, t3dV3F *eye, t3dV3F *center);
+void t3dVectTransform(t3dV3F *d, t3dV3F *s, t3dM3X3F *mat);
+void t3dVectTransformInv(t3dV3F *d, t3dV3F *s, t3dM3X3F *mat);
+void t3dVectInit(t3dV3F *a, t3dF32 x, t3dF32 y, t3dF32 z);
+void t3dVectCross(t3dV3F *d, t3dV3F *v2, t3dV3F *v3);
+void t3dVectSub(t3dV3F *d, t3dV3F *a, t3dV3F *b);            // d = a - b
+void t3dVectAdd(t3dV3F *d, t3dV3F *a, t3dV3F *b);            // d = a - b
+void t3dVectFill(t3dV3F *d, t3dF32 a);
+void t3dVectCopy(t3dV3F *d, t3dV3F *s);
+t3dF32 t3dVectMod(t3dV3F *c);
+t3dF32 t3dVectDistance(t3dV3F *a, t3dV3F *b);
+t3dF32 t3dVectSquaredDistance(t3dV3F *a, t3dV3F *b);
+t3dF32 t3dPointSquaredDistance(t3dV3F *c);
+void t3dVectNormalize(t3dV3F *c);
+t3dF32 t3dVectDot(t3dV3F *a, t3dV3F *b);
+void t3dMatMulInv(t3dM3X3F *Dest, t3dM3X3F *a, t3dM3X3F *b);
+void t3dVectReflection(t3dV3F *r, t3dV3F *p1, t3dNORMAL *plane, t3dF32 dist);
+void t3dMatInv(t3dM3X3F *d, t3dM3X3F *s);
+void t3dPlaneNormal(t3dNORMAL *n, t3dV3F *p0, t3dV3F *p1, t3dV3F *p2);
+void t3dVector2dTo3d(t3dV3F *end, t3dV2F *start);
+int32 t3dFloatToInt(t3dF32 nfloat);
+t3dF32 t3dVectPlaneDistance(t3dV3F start, t3dNORMAL n);  //return the distance of start from plane normal n
+uint8 t3dVectPlaneIntersection(t3dV3F *inter, t3dV3F start, t3dV3F end, t3dNORMAL n);    //if return value !=0 inter contains the intersection point
+uint8 t3dVectTriangleIntersection(t3dV3F *inter, t3dV3F start, t3dV3F end, t3dV3F v1, t3dV3F v2, t3dV3F v3, t3dNORMAL n); //return 1 if the vector from start to end pass trought the triangle v1,v2,v3
+
+} // End of namespace Watchmaker
+
+#endif // WATCHMAKER_LLMATH_H