fife-parpg: engine/core/util/math/angles.h annotate

annotate engine/core/util/math/angles.h @ 646:07b1cf8e92b5

* Major improvements to fife_math.h and added corresponding Python bindings. Users now have access to FIFE's internal math functions. These functions are recommended to be used by all clients if required. Note: this may cause some problems with certain compilers. I hope this wont have to be reverted. TODO: remove the static constant globals somehow. * Adopted the new math functions for all subsystems * Improvements to DeviceCaps. It now detects all possible screen modes. * User can now select 0 for their bpp and it will attempt to initialize SDL with the current screen bpp.

author	prock@33b003aa-7bff-0310-803a-e67f0ece8222
date	Wed, 13 Oct 2010 20:24:48 +0000
parents	356634098bd9
children

rev	line source
0 4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	1 /***************************************************************************
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	2 * Copyright (C) 2005-2008 by the FIFE team *
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	3 * http://www.fifengine.de *
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	4 * This file is part of FIFE. *
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	5 * *
46 90005975cdbb * Final LGPL switch step by adjusting the file headers mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 0 diff changeset	6 * FIFE is free software; you can redistribute it and/or *
90005975cdbb * Final LGPL switch step by adjusting the file headers mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 0 diff changeset	7 * modify it under the terms of the GNU Lesser General Public *
90005975cdbb * Final LGPL switch step by adjusting the file headers mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 0 diff changeset	8 * License as published by the Free Software Foundation; either *
90005975cdbb * Final LGPL switch step by adjusting the file headers mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 0 diff changeset	9 * version 2.1 of the License, or (at your option) any later version. *
0 4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	10 * *
46 90005975cdbb * Final LGPL switch step by adjusting the file headers mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 0 diff changeset	11 * This library is distributed in the hope that it will be useful, *
0 4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
46 90005975cdbb * Final LGPL switch step by adjusting the file headers mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 0 diff changeset	13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
90005975cdbb * Final LGPL switch step by adjusting the file headers mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 0 diff changeset	14 * Lesser General Public License for more details. *
0 4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	15 * *
46 90005975cdbb * Final LGPL switch step by adjusting the file headers mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 0 diff changeset	16 * You should have received a copy of the GNU Lesser General Public *
90005975cdbb * Final LGPL switch step by adjusting the file headers mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 0 diff changeset	17 * License along with this library; if not, write to the *
0 4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	18 * Free Software Foundation, Inc., *
46 90005975cdbb * Final LGPL switch step by adjusting the file headers mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 0 diff changeset	19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
0 4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	20 ***************************************************************************/
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	21
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	22 #ifndef FIFE_ANGLES_H
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	23 #define FIFE_ANGLES_H
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	24
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	25 // Standard C++ library includes
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	26 #include <map>
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	27
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	28 // 3rd party library includes
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	29
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	30 // FIFE includes
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	31 // These includes are split up in two parts, separated by one empty line
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	32 // First block: files included from the FIFE root src directory
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	33 // Second block: files included from the same folder
407 f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	34 #include "model/structures/location.h"
0 4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	35
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	36 namespace FIFE {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	37 typedef std::map<unsigned int, int> type_angle2id;
407 f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	38
0 4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	39 /** Returns id for given angle from angle2id map
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	40 * in case there are no elements in the map, negative value is returned
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	41 */
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	42 int getIndexByAngle(int angle, const type_angle2id& angle2id, int& closestMatchingAngle);
407 f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	43
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	44 /** Gets angle of vector defined by given locations
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	45 * @return angle in polar coordinates between the line
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	46 * defined by the two locations and the horizontal axis (East <-> West)
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	47 */
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	48 inline int getAngleBetween(const Location& loc1, const Location& loc2) {
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	49 ExactModelCoordinate c1 = loc1.getMapCoordinates();
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	50 ExactModelCoordinate c2 = loc2.getMapCoordinates();
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	51
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	52 double dy = (c2.y - c1.y);
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	53 double dx = (c2.x - c1.x);
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	54
646 07b1cf8e92b5 * Major improvements to fife_math.h and added corresponding Python bindings. Users now have access to FIFE's internal math functions. These functions are recommended to be used by all clients if required. Note: this may cause some problems with certain compilers. I hope this wont have to be reverted. TODO: remove the static constant globals somehow. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 621 diff changeset	55 int angle = static_cast<int>(Mathd::ATan2(-dy,dx)*(180.0/Mathd::pi()));
407 f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	56
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	57 return angle;
f27880d4c08c Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation. prock@33b003aa-7bff-0310-803a-e67f0ece8222 parents: 46 diff changeset	58 }
0 4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	59 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	60
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-) mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222 parents: diff changeset	61 #endif

Mercurial > fife-parpg

annotate engine/core/util/math/angles.h @ 646:07b1cf8e92b5