forked from bartvdbraak/blender
3511f8ef9f
Clamp objects min/max velocity. Accessed with bullet physics from the advanced button with dynamic and rigid body objects. - useful for preventing unstable physics in cases where objects move too fast. - can add linear velocity with the motion actuator to give smooth motion transitions, without moving too fast. - minimum velocity means objects don't stop moving. - python scripts can adjust these values speedup or throttle velocity in the existing direction. Also made copy properties from an object with no properties work (in case you want to clear all props)
61 lines
2.6 KiB
C
61 lines
2.6 KiB
C
/**
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef PHY_PROPSH
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#define PHY_PROPSH
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#include <MT_Scalar.h>
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// Properties of dynamic objects
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struct PHY_ShapeProps {
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MT_Scalar m_mass; // Total mass
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MT_Scalar m_inertia; // Inertia, should be a tensor some time
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MT_Scalar m_lin_drag; // Linear drag (air, water) 0 = concrete, 1 = vacuum, inverted and called dampening in blenders UI
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MT_Scalar m_ang_drag; // Angular drag, inverted and called dampening in blenders UI
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MT_Scalar m_friction_scaling[3]; // Scaling for anisotropic friction. Component in range [0, 1]
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MT_Scalar m_clamp_vel_min; // Clamp the minimum velocity, this ensures an object moves at a minimum speed unless its stationary
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MT_Scalar m_clamp_vel_max; // Clamp max velocity
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bool m_do_anisotropic; // Should I do anisotropic friction?
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bool m_do_fh; // Should the object have a linear Fh spring?
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bool m_do_rot_fh; // Should the object have an angular Fh spring?
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};
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// Properties of collidable objects (non-ghost objects)
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struct PHY_MaterialProps {
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MT_Scalar m_restitution; // restitution of energie after a collision 0 = inelastic, 1 = elastic
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MT_Scalar m_friction; // Coulomb friction (= ratio between the normal en maximum friction force)
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MT_Scalar m_fh_spring; // Spring constant (both linear and angular)
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MT_Scalar m_fh_damping; // Damping factor (linear and angular) in range [0, 1]
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MT_Scalar m_fh_distance; // The range above the surface where Fh is active.
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bool m_fh_normal; // Should the object slide off slopes?
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};
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#endif //PHY_PROPSH
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