blender/source/gameengine/Physics/Dummy/DummyPhysicsEnvironment.cpp

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/*
* ***** BEGIN GPL LICENSE BLOCK *****
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*
* 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 2
* of the License, or (at your option) any later version.
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*
* 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, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file gameengine/Physics/Dummy/DummyPhysicsEnvironment.cpp
* \ingroup physdummy
*/
#include <stddef.h>
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#include "DummyPhysicsEnvironment.h"
#include "PHY_IMotionState.h"
DummyPhysicsEnvironment::DummyPhysicsEnvironment()
{
// create physicsengine data
}
DummyPhysicsEnvironment::~DummyPhysicsEnvironment()
{
//destroy physicsengine data
}
void DummyPhysicsEnvironment::beginFrame()
{
// beginning of logic frame: apply forces
}
void DummyPhysicsEnvironment::endFrame()
{
// end of logic frame: clear forces
}
bool DummyPhysicsEnvironment::proceedDeltaTime(double curTime,float timeStep,float interval)
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{
//step physics simulation, typically perform
//collision detection
//solve constraints
//integrate solution
// return true if an update was done.
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return true;
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}
void DummyPhysicsEnvironment::setFixedTimeStep(bool useFixedTimeStep,float fixedTimeStep)
{
}
float DummyPhysicsEnvironment::getFixedTimeStep()
{
return 0.f;
}
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void DummyPhysicsEnvironment::setGravity(float x,float y,float z)
{
}
int DummyPhysicsEnvironment::createConstraint(class PHY_IPhysicsController* ctrl,class PHY_IPhysicsController* ctrl2,PHY_ConstraintType type,
float pivotX,float pivotY,float pivotZ,float axisX,float axisY,float axisZ,
float axis1X,float axis1Y,float axis1Z,
float axis2X,float axis2Y,float axis2Z,int flag
)
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{
int constraintid = 0;
return constraintid;
}
void DummyPhysicsEnvironment::removeConstraint(int constraintid)
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{
if (constraintid)
{
}
}
BGE patch: KX_GameObject::rayCast() improvements to have X-Ray option, return true face normal and hit polygon information. rayCast(to,from,dist,prop,face,xray,poly): The face paremeter determines the orientation of the normal: 0 or omitted => hit normal is always oriented towards the ray origin (as if you casted the ray from outside) 1 => hit normal is the real face normal (only for mesh object, otherwise face has no effect) The ray has X-Ray capability if xray parameter is 1, otherwise the first object hit (other than self object) stops the ray. The prop and xray parameters interact as follow: prop off, xray off: return closest hit or no hit if there is no object on the full extend of the ray. prop off, xray on : idem. prop on, xray off: return closest hit if it matches prop, no hit otherwise. prop on, xray on : return closest hit matching prop or no hit if there is no object matching prop on the full extend of the ray. if poly is 0 or omitted, returns a 3-tuple with object reference, hit point and hit normal or (None,None,None) if no hit. if poly is 1, returns a 4-tuple with in addition a KX_PolyProxy as 4th element. The KX_PolyProxy object holds information on the polygon hit by the ray: the index of the vertex forming the poylgon, material, etc. Attributes (read-only): matname: The name of polygon material, empty if no material. material: The material of the polygon texture: The texture name of the polygon. matid: The material index of the polygon, use this to retrieve vertex proxy from mesh proxy v1: vertex index of the first vertex of the polygon, use this to retrieve vertex proxy from mesh proxy v2: vertex index of the second vertex of the polygon, use this to retrieve vertex proxy from mesh proxy v3: vertex index of the third vertex of the polygon, use this to retrieve vertex proxy from mesh proxy v4: vertex index of the fourth vertex of the polygon, 0 if polygon has only 3 vertex use this to retrieve vertex proxy from mesh proxy visible: visible state of the polygon: 1=visible, 0=invisible collide: collide state of the polygon: 1=receives collision, 0=collision free. Methods: getMaterialName(): Returns the polygon material name with MA prefix getMaterial(): Returns the polygon material getTextureName(): Returns the polygon texture name getMaterialIndex(): Returns the material bucket index of the polygon. getNumVertex(): Returns the number of vertex of the polygon. isVisible(): Returns whether the polygon is visible or not isCollider(): Returns whether the polygon is receives collision or not getVertexIndex(vertex): Returns the mesh vertex index of a polygon vertex getMesh(): Returns a mesh proxy New methods of KX_MeshProxy have been implemented to retrieve KX_PolyProxy objects: getNumPolygons(): Returns the number of polygon in the mesh. getPolygon(index): Gets the specified polygon from the mesh. More details in PyDoc.
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PHY_IPhysicsController* DummyPhysicsEnvironment::rayTest(PHY_IRayCastFilterCallback &filterCallback,float fromX,float fromY,float fromZ, float toX,float toY,float toZ)
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{
//collision detection / raytesting
return NULL;
}