void picking_sphere_create(float radius, struct PickingSphere* sphere) {
pivot_create(NULL, NULL, &sphere->pivot);
sphere->picked = false;
vec_copy4f((Vec4f){0.0f, 0.0f, 0.0f, 1.0f}, sphere->ray);
sphere->radius = radius;
sphere->front = -FLT_MAX;
sphere->back = -FLT_MAX;
}
struct Pivot* pivot_combine(const struct Pivot* pivot1, const struct Pivot* pivot2, struct Pivot* r) {
Vec4f concat_position = {0};
vec_add(pivot1->position, pivot2->position, concat_position);
Quat concat_orientation = {0};
quat_mul(pivot1->orientation, pivot2->orientation, concat_orientation);
pivot_create(concat_position, concat_orientation, r);
return r;
}
static void entity_create(const char* name, Color color, struct Vbo* vbo, struct Ibo* ibo, struct CollisionEntity* entity) {
entity->name = name;
pivot_create(NULL, NULL, &entity->pivot);
solid_cube_create(1.0f, color, &entity->solid);
solid_cube_create(1.0f, color, &entity->optimized_solid);
solid_optimize((struct Solid*)&entity->optimized_solid);
vbo_mesh_create_from_solid((struct Solid*)&entity->optimized_solid, vbo, ibo, &entity->vbo_mesh);
halfedgemesh_create(&entity->hemesh);
halfedgemesh_append(&entity->hemesh, (struct Solid*)&entity->solid);
halfedgemesh_optimize(&entity->hemesh);
picking_sphere_create(1.0f, &entity->picking_sphere);
pivot_attach(&entity->picking_sphere.pivot, &entity->pivot);
}
void shape_convex_create(const struct HalfEdgeMesh* mesh, struct ShapeConvex* convex) {
pivot_create(NULL, NULL, &convex->base_shape.pivot);
convex->base_shape.instance = SHAPE_CONVEX;
convex->mesh = mesh;
}
void shape_sphere_create(float radius, struct ShapeSphere* sphere) {
pivot_create(NULL, NULL, &sphere->base_shape.pivot);
sphere->base_shape.instance = SHAPE_SPHERE;
sphere->radius = radius;
}
