diff options
author | Benoit Bolsee <benoit.bolsee@online.be> | 2008-08-27 23:34:19 +0400 |
---|---|---|
committer | Benoit Bolsee <benoit.bolsee@online.be> | 2008-08-27 23:34:19 +0400 |
commit | becd467be8613b1f71278d8a58337186a3f79170 (patch) | |
tree | d6a24284588dfb4d71a7201107954d4f3f0c158c /source/gameengine/Physics/common/PHY_IPhysicsEnvironment.h | |
parent | f6bdba8351d389b397ea0a8a6f1390644c36cc0e (diff) |
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.
Diffstat (limited to 'source/gameengine/Physics/common/PHY_IPhysicsEnvironment.h')
-rw-r--r-- | source/gameengine/Physics/common/PHY_IPhysicsEnvironment.h | 47 |
1 files changed, 45 insertions, 2 deletions
diff --git a/source/gameengine/Physics/common/PHY_IPhysicsEnvironment.h b/source/gameengine/Physics/common/PHY_IPhysicsEnvironment.h index 5b275066665..98496fb7f9e 100644 --- a/source/gameengine/Physics/common/PHY_IPhysicsEnvironment.h +++ b/source/gameengine/Physics/common/PHY_IPhysicsEnvironment.h @@ -33,6 +33,50 @@ #include <vector> #include "PHY_DynamicTypes.h" class PHY_IVehicle; +class RAS_MeshObject; +class PHY_IPhysicsController; + +/** + * pass back information from rayTest + */ +struct PHY_RayCastResult +{ + PHY_IPhysicsController* m_controller; + PHY__Vector3 m_hitPoint; + PHY__Vector3 m_hitNormal; + const RAS_MeshObject* m_meshObject; // !=NULL for mesh object (only for Bullet controllers) + int m_polygon; // index of the polygon hit by the ray, + // only if m_meshObject != NULL +}; + +/** + * This class replaces the ignoreController parameter of rayTest function. + * It allows more sophisticated filtering on the physics controller before computing the ray intersection to save CPU. + * It is only used to its full extend by the Ccd physics environement (Bullet). + */ +class PHY_IRayCastFilterCallback +{ +public: + PHY_IPhysicsController* m_ignoreController; + bool m_faceNormal; + + virtual ~PHY_IRayCastFilterCallback() + { + } + + virtual bool needBroadphaseRayCast(PHY_IPhysicsController* controller) + { + return true; + } + + virtual void reportHit(PHY_RayCastResult* result) = 0; + + PHY_IRayCastFilterCallback(PHY_IPhysicsController* ignoreController, bool faceNormal=false) + :m_ignoreController(ignoreController), + m_faceNormal(faceNormal) + { + } +}; /** * Physics Environment takes care of stepping the simulation and is a container for physics entities (rigidbodies,constraints, materials etc.) @@ -94,8 +138,7 @@ class PHY_IPhysicsEnvironment //complex constraint for vehicles virtual PHY_IVehicle* getVehicleConstraint(int constraintId) =0; - virtual PHY_IPhysicsController* rayTest(PHY_IPhysicsController* ignoreClient, float fromX,float fromY,float fromZ, float toX,float toY,float toZ, - float& hitX,float& hitY,float& hitZ,float& normalX,float& normalY,float& normalZ)=0; + virtual PHY_IPhysicsController* rayTest(PHY_IRayCastFilterCallback &filterCallback, float fromX,float fromY,float fromZ, float toX,float toY,float toZ)=0; //Methods for gamelogic collision/physics callbacks |