def import_nitristrips(self, bhk_shape):
"""Import a NiTriStrips block as a Triangle-Mesh collision object"""
# no factor 7 correction!!!
verts = [(v.x, v.y, v.z) for v in bhk_shape.vertices]
faces = list(bhk_shape.get_triangles())
b_obj = Object.mesh_from_data("poly", verts, faces)
# TODO [collision] self.havok_mat!
self.set_b_collider(b_obj, bounds_type="MESH", radius=bhk_shape.radius)
return [b_obj]
def import_bhkconvex_vertices_shape(self, bhk_shape):
"""Import a BhkConvexVertex block as a convex hull collision object"""
NifLog.debug(f"Importing {bhk_shape.__class__.__name__}")
# find vertices (and fix scale)
scaled_verts = [(self.HAVOK_SCALE * n_vert.x, self.HAVOK_SCALE * n_vert.y, self.HAVOK_SCALE * n_vert.z)
for n_vert in bhk_shape.vertices]
verts, faces = qhull3d(scaled_verts)
b_obj = Object.mesh_from_data("convexpoly", verts, faces)
radius = bhk_shape.radius * self.HAVOK_SCALE
self.set_b_collider(b_obj, bounds_type="CONVEX_HULL", radius=radius, n_obj=bhk_shape)
return [b_obj]
def import_bhkpackednitristrips_shape(self, bhk_shape):
"""Import a BhkPackedNiTriStrips block as a Triangle-Mesh collision object"""
NifLog.debug(f"Importing {bhk_shape.__class__.__name__}")
# create mesh for each sub shape
hk_objects = []
vertex_offset = 0
subshapes = bhk_shape.sub_shapes
if not subshapes:
# fallout 3 stores them in the data
subshapes = bhk_shape.data.sub_shapes
for subshape_num, subshape in enumerate(subshapes):
verts = []
faces = []
for vert_index in range(vertex_offset,
vertex_offset + subshape.num_vertices):
n_vert = bhk_shape.data.vertices[vert_index]
verts.append(
(n_vert.x * self.HAVOK_SCALE, n_vert.y * self.HAVOK_SCALE,
n_vert.z * self.HAVOK_SCALE))
for bhk_triangle in bhk_shape.data.triangles:
bhk_tri = bhk_triangle.triangle
if (vertex_offset <= bhk_tri.v_1) and (
bhk_tri.v_1 < vertex_offset + subshape.num_vertices):
faces.append((bhk_tri.v_1 - vertex_offset,
bhk_tri.v_2 - vertex_offset,
bhk_tri.v_3 - vertex_offset))
else:
continue
b_obj = Object.mesh_from_data(f'poly{subshape_num:d}', verts,
faces)
radius = min(vert.co.length for vert in b_obj.data.vertices)
self.set_b_collider(b_obj,
bounds_type="MESH",
radius=radius,
n_obj=subshape)
vertex_offset += subshape.num_vertices
hk_objects.append(b_obj)
return hk_objects