# Implementation of the module {block_hp}.
# Last edited on 2021-05-16 23:08:40 by jstolfi

import block_hp
import block
import path
import move
import move_parms
import contact
import job_parms
import hacks
import rn 
import pyx
import sys
from math import sqrt, floor, ceil, sin, cos, acos, pi, nan,  inf

def used_choice(bc):
  assert isinstance(bc, block.Block)
  return bc.used_choice
  # ----------------------------------------------------------------------
  
def set_used_choice(bc, us):
  assert isinstance(bc, block.Block)
  assert us == None or type(us) is int and (0 <= us and us < block.nchoices(bc))
  bc.used_choice = us
  # ----------------------------------------------------------------------
  
def clear_contacts(bc):
  bc.contacts = []
  # ----------------------------------------------------------------------
  
def add_contact(bc, ct):
  bc.contacts.append(ct)
  return 
  # ----------------------------------------------------------------------
  
def get_contacts(bc):
  return tuple(bc.contacts)
  # ----------------------------------------------------------------------

def get_seams(bc):
  assert isinstance(bc, block.Block)
  return bc.seams
  # ----------------------------------------------------------------------

def set_seams(bc, SMSP):
  assert isinstance(bc, block.Block)
  assert type(SMSP) is list or type(SMSP) is tuple
  assert len(SMSP) == 2
  bc.seams = tuple(SMSP)
  # ----------------------------------------------------------------------