koperkapel/gamelib/enemy_roach.py

   1 # Roach utilities
   2
   3 import random
   4
   5 from pgzero.clock import each_tick, unschedule
   6 from functools import partial
   7
   8 from ..roaches import t32_roaches, WorldRoach, default_rats
   9
  10
  11 def get_enemy_roach(level):
  12     roach = t32_roaches.assemble(WorldRoach(), color=(255, 0, 0, 255))
  13     roach.anchor = (-16, -16)  # this should center them on the tile
  14     roach.game_pos = (0, 0)
  15     roach.health = 5
  16     roach.damage = 1
  17     roach.angle = 0
  18     roach.level = level
  19     roach.level_layer = 'floor'  # always the case for now
  20     roach.move = partial(move, roach)
  21     roach.last_moved = 0
  22     roach.last_attacked= 0
  23     roach.start_pos = None
  24     each_tick(roach.move)
  25     roach.attack = partial(attack, roach)
  26     return roach
  27
  28
  29 def get_rat(level):
  30     roach = default_rats.assemble()
  31     roach.anchor = (0, 0)
  32     roach.game_pos = (0, 0)
  33     roach.health = 10
  34     roach.damage = 2
  35     roach.angle = 0
  36     roach.level = level
  37     roach.move = partial(move, roach)
  38     roach.last_moved = 0
  39     roach.last_attacked= 0
  40     roach.start_pos = None
  41     each_tick(roach.move)
  42     roach.attack = partial(attack, roach)
  43     return roach
  44
  45 def attack(roach, player_pos, player_layer, dt):
  46     """Attack the player if close enough"""
  47     roach.last_attacked += dt
  48     if roach.last_attacked > 0.6:
  49         roach.last_attacked = 0
  50         if player_layer != 'floor':
  51             return None
  52         if abs(player_pos[0] - roach.game_pos[0]) > 1:
  53             return None
  54         if abs(player_pos[1] - roach.game_pos[1]) > 1:
  55             return None
  56         # Attacking, so turn towards the player
  57         if player_pos[0] - roach.game_pos[0] < 0:
  58             roach.angle = 270
  59         elif player_pos[1] - roach.game_pos[1] < 0:
  60             roach.angle = 0
  61         elif player_pos[0] - roach.game_pos[0] > 0:
  62             roach.angle = 90
  63         else:
  64             roach.angle = 270
  65         # Do 1 damage
  66         return roach.damage
  67
  68 def move(roach, dt):
  69     """Enemy roach move method"""
  70     roach.last_moved += dt
  71     if not roach in roach.level.enemies:
  72         unschedule(roach.move)
  73         return
  74     if roach.last_moved > 0.5:
  75         if not roach.start_pos:
  76             roach.start_pos = roach.game_pos
  77         roach.last_moved = 0
  78         attempt = 0
  79         while attempt < 4:
  80             attempt += 1
  81             dx = random.randint(-1, 1)
  82             dy = random.randint(-1, 1)
  83             if abs(roach.game_pos[0] + dx - roach.start_pos[0]) > 2:
  84                 continue
  85             if abs(roach.game_pos[1] + dy - roach.start_pos[1]) > 2:
  86                 continue
  87             if roach.level.can_walk(roach.game_pos[0] + dx, roach.game_pos[1] + dy, 'floor'):
  88                 enemy = roach.level.get_enemy(roach.game_pos[0] + dx, roach.game_pos[1] + dy)
  89                 if enemy and enemy is not roach:
  90                     continue
  91                 roach.game_pos = (roach.game_pos[0] + dx, roach.game_pos[1] + dy)
  92                 if dy == 1:
  93                     roach.angle = 180
  94                 elif dy == -1:
  95                     roach.angle = 0
  96                 elif dx == 1:
  97                     roach.angle = 270
  98                 else:
  99                     roach.angle = 90
 100                 break