players/FanRandomPlayer.py

   1 from troncode_values import *
   2 import random
   3 import math
   4
   5 DANGER = 0
   6 SAFE = 1
   7
   8 class FanRandomPlayer( object ):
   9
  10         def __init__( self ):
  11                 self.step = 0
  12                 self.last = 0
  13
  14         def GetColour( self ):
  15                 return ( 255, 255, 0 )
  16
  17         def GetName():
  18                 return "Fan Zhang's Random Player!"
  19         GetName = staticmethod( GetName )
  20
  21         def ProbeEnemies(self, position, gameboard):
  22                 enemies = gameboard.GetPlayerPositions(position)
  23                 (my_x, my_y) = position
  24                 for (epos, edir) in enemies:
  25                         (x, y) = epos
  26                         dis = math.sqrt((my_x-x)*(my_x-x) + (my_y-y)*(my_y-y))
  27                         if (dis < 3):
  28                                 return (DANGER, epos, edir)
  29                 return (SAFE, None, None)
  30
  31         def GetDir( self, position, direction, gameboard ):
  32
  33                 ret_dir = direction
  34
  35                 #starting direction
  36                 (x, y) =  position
  37                 ax = math.fabs(100-x)
  38                 ay = math.fabs(100-y)
  39                 if self.step==0 and x < y and x < ay and x < ax:
  40                         ret_dir = DIR_LEFT
  41                 elif self.step==0 and y < x and y < ax and y < ay:
  42                         ret_dir = DIR_DOWN
  43                 elif self.step==0 and ax < ay and ax < y and ax < x:
  44                         ret_dir = DIR_RIGHT
  45                 elif self.step==0 and ay < ax and ay < x and ay < y:
  46                         ret_dir = DIR_UP
  47
  48                 #when meet the wall
  49                 if (x == 0 or x == 199) and y > ay:
  50                         ret_dir = DIR_DOWN
  51                 elif (x == 0 or x == 199) and y <= ay:
  52                         ret_dir = DIR_UP
  53                 elif (y == 0 or y == 199) and x > ax:
  54                         ret_dir = DIR_LEFT
  55                 elif (y == 0 or y == 199) and x <= ax:
  56                         ret_dir = DIR_RIGHT
  57
  58                 #normal direction for marching
  59                 if self.last == 1:
  60                         ret_dir = gameboard.TurnLeft( ret_dir )
  61                         self.last = 0
  62                 else:
  63                         ret_dir = gameboard.TurnLeft( ret_dir )
  64                         self.last = 1
  65
  66                 player = self.ProbeEnemies(position, gameboard)
  67
  68                 if player[0] == DANGER:
  69                         ret_dir = gameboard.TurnLeft( ret_dir )
  70
  71                 # Don't enter tunnels of width 1
  72                 if ( gameboard.GetRelativePixel( position, ret_dir, 1, 1 ) > 0 and
  73                          gameboard.GetRelativePixel( position, ret_dir, 1, -1 ) > 0 ):
  74                         ret_dir = gameboard.TurnRight( ret_dir )
  75
  76                 # Avoid immediate death by turning right
  77                 for i in range( 4 ):
  78                         if gameboard.GetRelativePixel( position, ret_dir, 1, 0 ) == 0:
  79                                 break
  80                         ret_dir = gameboard.TurnRight( ret_dir )
  81
  82                 self.step = self.step+1
  83                 return ret_dir