98 lines
2.5 KiB
C++
98 lines
2.5 KiB
C++
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// Residual - Virtual machine to run LucasArts' 3D adventure games
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// Copyright (C) 2003-2006 The ScummVM-Residual Team (www.scummvm.org)
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#include "matrix_ops.h"
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#include <ronin/ronin.h>
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#include <ronin/matrix.h>
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#include <ronin/sincos_rroot.h>
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#include <assert.h>
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#define DEG(X) ((int)(X*(65536.0/360.0)))
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void MatrixOps::pushMatrix()
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{
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assert(_matrix_depth < MAX_MATRIX_STACK_DEPTH);
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save_matrix(&_matrix_stack[_matrix_depth++]);
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}
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void MatrixOps::popMatrix()
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{
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assert(_matrix_depth > 0);
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load_matrix(&_matrix_stack[--_matrix_depth]);
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}
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void MatrixOps::translate(float x, float y, float z)
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{
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static float matrix[4][4] = {
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{ 1.0, 0.0, 0.0, 0.0 },
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{ 0.0, 1.0, 0.0, 0.0 },
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{ 0.0, 0.0, 1.0, 0.0 },
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{ 0.0, 0.0, 0.0, 1.0 },
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};
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matrix[3][0] = x;
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matrix[3][1] = y;
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matrix[3][2] = z;
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apply_matrix(&matrix);
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}
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void MatrixOps::rotateX(float deg)
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{
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static float matrix[4][4] = {
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{ 1.0, 0.0, 0.0, 0.0 },
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{ 0.0, 1.0, 0.0, 0.0 },
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{ 0.0, 0.0, 1.0, 0.0 },
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{ 0.0, 0.0, 0.0, 1.0 },
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};
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float s, c;
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SINCOS(DEG(deg), s, c);
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matrix[1][1] = matrix[2][2] = c;
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matrix[1][2] = -(matrix[2][1] = s);
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apply_matrix(&matrix);
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}
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void MatrixOps::rotateY(float deg)
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{
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static float matrix[4][4] = {
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{ 1.0, 0.0, 0.0, 0.0 },
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{ 0.0, 1.0, 0.0, 0.0 },
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{ 0.0, 0.0, 1.0, 0.0 },
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{ 0.0, 0.0, 0.0, 1.0 },
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};
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float s, c;
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SINCOS(DEG(deg), s, c);
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matrix[0][0] = matrix[2][2] = c;
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matrix[2][0] = -(matrix[0][2] = s);
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apply_matrix(&matrix);
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}
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void MatrixOps::rotateZ(float deg)
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{
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static float matrix[4][4] = {
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{ 1.0, 0.0, 0.0, 0.0 },
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{ 0.0, 1.0, 0.0, 0.0 },
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{ 0.0, 0.0, 1.0, 0.0 },
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{ 0.0, 0.0, 0.0, 1.0 },
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};
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float s, c;
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SINCOS(DEG(deg), s, c);
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matrix[0][0] = matrix[1][1] = c;
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matrix[0][1] = -(matrix[1][0] = s);
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apply_matrix(&matrix);
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}
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