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qpgeom supports collide-with-geom

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This commit is contained in:
David Rose 2005-04-20 23:43:43 +00:00
parent e7a79098b6
commit 87a7fd85bf
1 changed files with 51 additions and 14 deletions
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37
panda/src/collide/collisionTraverser.cxx
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@ -27,6 +27,9 @@
#include "transformState.h"
#include "geomNode.h"
#include "geom.h"
#include "qpgeom.h"
#include "qpgeomTriangles.h"
#include "qpgeomVertexReader.h"
#include "lodNode.h"
#include "nodePath.h"
#include "pStatTimer.h"
@ -738,6 +741,39 @@ compare_collider_to_geom(CollisionEntry &entry, const Geom *geom,
ci = _colliders.find(entry.get_from_node_path());
nassertv(ci != _colliders.end());
if (geom->is_of_type(qpGeom::get_class_type())) {
const qpGeom *qpgeom = DCAST(qpGeom, geom);
if (qpgeom->get_primitive_type() == qpGeom::PT_polygons) {
const qpGeomVertexData *data =qpgeom->get_vertex_data();
qpGeomVertexReader vertex(data, InternalName::get_vertex());
int num_primitives = qpgeom->get_num_primitives();
for (int i = 0; i < num_primitives; ++i) {
const qpGeomPrimitive *primitive = qpgeom->get_primitive(i);
CPT(qpGeomPrimitive) tris = primitive->decompose();
nassertv(tris->is_of_type(qpGeomTriangles::get_class_type()));
int num_vertices = tris->get_num_vertices();
nassertv((num_vertices % 3) == 0);
for (int vi = 0; vi < num_vertices; vi += 3) {
vertex.set_row(tris->get_vertex(vi));
Vertexf v0 = vertex.get_data3f();
vertex.set_row(tris->get_vertex(vi + 1));
Vertexf v1 = vertex.get_data3f();
vertex.set_row(tris->get_vertex(vi + 2));
Vertexf v2 = vertex.get_data3f();
// Generate a temporary CollisionPolygon on the fly for
// each triangle in the Geom.
if (CollisionPolygon::verify_points(v0, v1, v2)) {
entry._into = new CollisionPolygon(v0, v1, v2);
entry.test_intersection((*ci).second, this);
}
}
}
}
} else {
PTA_Vertexf coords;
PTA_ushort vindex;
geom->get_coords(coords, vindex);
@ -757,6 +793,7 @@ compare_collider_to_geom(CollisionEntry &entry, const Geom *geom,
}
}
}
}
////////////////////////////////////////////////////////////////////
// Function: CollisionTraverser::remove_handler