diff options
Diffstat (limited to 'source/gameengine/Ketsji/KX_GameObject.cpp')
| -rw-r--r-- | source/gameengine/Ketsji/KX_GameObject.cpp | 101 |
1 files changed, 76 insertions, 25 deletions
diff --git a/source/gameengine/Ketsji/KX_GameObject.cpp b/source/gameengine/Ketsji/KX_GameObject.cpp index 010ee1ebae9..51322f8429e 100644 --- a/source/gameengine/Ketsji/KX_GameObject.cpp +++ b/source/gameengine/Ketsji/KX_GameObject.cpp @@ -51,6 +51,7 @@ typedef unsigned long uint_ptr; #include "KX_GameObject.h" #include "RAS_MeshObject.h" #include "KX_MeshProxy.h" +#include "KX_PolyProxy.h" #include <stdio.h> // printf #include "SG_Controller.h" #include "KX_IPhysicsController.h" @@ -84,6 +85,7 @@ KX_GameObject::KX_GameObject( m_bVisible(true), m_pPhysicsController1(NULL), m_pPhysicsEnvironment(NULL), + m_xray(false), m_pHitObject(NULL), m_isDeformable(false) { @@ -1628,25 +1630,45 @@ KX_PYMETHODDEF_DOC(KX_GameObject, getVectTo, return returnValue; } -bool KX_GameObject::RayHit(KX_ClientObjectInfo* client, MT_Point3& hit_point, MT_Vector3& hit_normal, void * const data) +bool KX_GameObject::RayHit(KX_ClientObjectInfo* client, KX_RayCast* result, void * const data) { + KX_GameObject* hitKXObj = client->m_gameobject; + + // if X-ray option is selected, the unwnted objects were not tested, so get here only with true hit + // if not, all objects were tested and the front one may not be the correct one. + if (m_xray || m_testPropName.Length() == 0 || hitKXObj->GetProperty(m_testPropName) != NULL) + { + m_pHitObject = hitKXObj; + return true; + } + // return true to stop RayCast::RayTest from looping, the above test was decisive + // We would want to loop only if we want to get more than one hit point + return true; +} +/* this function is used to pre-filter the object before casting the ray on them. + This is useful for "X-Ray" option when we want to see "through" unwanted object. + */ +bool KX_GameObject::NeedRayCast(KX_ClientObjectInfo* client) +{ KX_GameObject* hitKXObj = client->m_gameobject; if (client->m_type > KX_ClientObjectInfo::ACTOR) { - // false hit + // Unknown type of object, skip it. + // Should not occur as the sensor objects are filtered in RayTest() + printf("Invalid client type %d found in ray casting\n", client->m_type); return false; } - - if (m_testPropName.Length() == 0 || hitKXObj->GetProperty(m_testPropName) != NULL) + + // if X-Ray option is selected, skip object that don't match the criteria as we see through them + // if not, test all objects because we don't know yet which one will be on front + if (!m_xray || m_testPropName.Length() == 0 || hitKXObj->GetProperty(m_testPropName) != NULL) { - m_pHitObject = hitKXObj; return true; } - + // skip the object return false; - } KX_PYMETHODDEF_DOC(KX_GameObject, rayCastTo, @@ -1686,8 +1708,6 @@ KX_PYMETHODDEF_DOC(KX_GameObject, rayCastTo, toPoint = fromPoint + (dist) * toDir; } - MT_Point3 resultPoint; - MT_Vector3 resultNormal; PHY_IPhysicsEnvironment* pe = GetPhysicsEnvironment(); KX_IPhysicsController *spc = GetPhysicsController(); KX_GameObject *parent = GetParent(); @@ -1701,7 +1721,7 @@ KX_PYMETHODDEF_DOC(KX_GameObject, rayCastTo, m_testPropName = propName; else m_testPropName.SetLength(0); - KX_RayCast::RayTest(spc, pe, fromPoint, toPoint, resultPoint, resultNormal, KX_RayCast::Callback<KX_GameObject>(this)); + KX_RayCast::RayTest(pe, fromPoint, toPoint, KX_RayCast::Callback<KX_GameObject>(this,spc)); if (m_pHitObject) { @@ -1712,13 +1732,24 @@ KX_PYMETHODDEF_DOC(KX_GameObject, rayCastTo, } KX_PYMETHODDEF_DOC(KX_GameObject, rayCast, - "rayCast(to,from,dist,prop): cast a ray and return tuple (object,hit,normal) of contact point with object within dist that matches prop or (None,None,None) tuple if no hit\n" -" prop = property name that object must have; can be omitted => detect any object\n" -" dist = max distance to look (can be negative => look behind); 0 or omitted => detect up to to\n" + "rayCast(to,from,dist,prop,face,xray,poly): cast a ray and return 3-tuple (object,hit,normal) or 4-tuple (object,hit,normal,polygon) of contact point with object within dist that matches prop.\n" + " If no hit, return (None,None,None) or (None,None,None,None).\n" +" to = 3-tuple or object reference for destination of ray (if object, use center of object)\n" " from = 3-tuple or object reference for origin of ray (if object, use center of object)\n" " Can be None or omitted => start from self object center\n" -" to = 3-tuple or object reference for destination of ray (if object, use center of object)\n" -"Note: the object on which you call this method matters: the ray will ignore it if it goes through it\n") +" dist = max distance to look (can be negative => look behind); 0 or omitted => detect up to to\n" +" prop = property name that object must have; can be omitted => detect any object\n" +" face = normal option: 1=>return face normal; 0 or omitted => normal is oriented towards origin\n" +" xray = X-ray option: 1=>skip objects that don't match prop; 0 or omitted => stop on first object\n" +" poly = polygon option: 1=>return value is a 4-tuple and the 4th element is a KX_PolyProxy object\n" +" which can be None if hit object has no mesh or if there is no hit\n" +" If 0 or omitted, return value is a 3-tuple\n" +"Note: The object on which you call this method matters: the ray will ignore it.\n" +" prop and xray option interact as follow:\n" +" prop off, xray off: return closest hit or no hit if there is no object on the full extend of the ray\n" +" prop off, xray on : idem\n" +" prop on, xray off: return closest hit if it matches prop, no hit otherwise\n" +" 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\n") { MT_Point3 toPoint; MT_Point3 fromPoint; @@ -1727,8 +1758,9 @@ KX_PYMETHODDEF_DOC(KX_GameObject, rayCast, float dist = 0.0f; char *propName = NULL; KX_GameObject *other; + int face=0, xray=0, poly=0; - if (!PyArg_ParseTuple(args,"O|Ofs", &pyto, &pyfrom, &dist, &propName)) { + if (!PyArg_ParseTuple(args,"O|Ofsiii", &pyto, &pyfrom, &dist, &propName, &face, &xray, &poly)) { return NULL; // Python sets a simple error } @@ -1774,8 +1806,6 @@ KX_PYMETHODDEF_DOC(KX_GameObject, rayCast, return Py_BuildValue("OOO", Py_None, Py_None, Py_None); } - MT_Point3 resultPoint; - MT_Vector3 resultNormal; PHY_IPhysicsEnvironment* pe = GetPhysicsEnvironment(); KX_IPhysicsController *spc = GetPhysicsController(); KX_GameObject *parent = GetParent(); @@ -1789,20 +1819,41 @@ KX_PYMETHODDEF_DOC(KX_GameObject, rayCast, m_testPropName = propName; else m_testPropName.SetLength(0); - KX_RayCast::RayTest(spc, pe, fromPoint, toPoint, resultPoint, resultNormal, KX_RayCast::Callback<KX_GameObject>(this)); + m_xray = xray; + // to get the hit results + KX_RayCast::Callback<KX_GameObject> callback(this,spc,NULL,face); + KX_RayCast::RayTest(pe, fromPoint, toPoint, callback); - if (m_pHitObject) + if (m_pHitObject) { - PyObject* returnValue = PyTuple_New(3); + PyObject* returnValue = (poly) ? PyTuple_New(4) : PyTuple_New(3); if (returnValue) { // unlikely this would ever fail, if it does python sets an error PyTuple_SET_ITEM(returnValue, 0, m_pHitObject->AddRef()); - PyTuple_SET_ITEM(returnValue, 1, PyObjectFrom(resultPoint)); - PyTuple_SET_ITEM(returnValue, 2, PyObjectFrom(resultNormal)); + PyTuple_SET_ITEM(returnValue, 1, PyObjectFrom(callback.m_hitPoint)); + PyTuple_SET_ITEM(returnValue, 2, PyObjectFrom(callback.m_hitNormal)); + if (poly) + { + if (callback.m_hitMesh) + { + // if this field is set, then we can trust that m_hitPolygon is a valid polygon + RAS_Polygon* poly = callback.m_hitMesh->GetPolygon(callback.m_hitPolygon); + KX_PolyProxy* polyproxy = new KX_PolyProxy(callback.m_hitMesh, poly); + PyTuple_SET_ITEM(returnValue, 3, polyproxy); + } + else + { + Py_INCREF(Py_None); + PyTuple_SET_ITEM(returnValue, 3, Py_None); + } + } } return returnValue; } - return Py_BuildValue("OOO", Py_None, Py_None, Py_None); - //Py_RETURN_NONE; + // no hit + if (poly) + return Py_BuildValue("OOOO", Py_None, Py_None, Py_None, Py_None); + else + return Py_BuildValue("OOO", Py_None, Py_None, Py_None); } /* --------------------------------------------------------------------- |