snake: engine.py annotate

snake

annotate engine.py @ 56:2d48ad3500d2

fixed syntax error

author	Alex Martynov <martiran@kodomo.fbb.msu.ru>
date	Sun, 19 Dec 2010 23:57:51 +0300
parents	0c02646962fa
children	a3bb04e72924

rev	line source
martiran@12	1 import random as rnd
martiran@15	2 import Tkinter as tk
martiran@12	3
martiran@6	4 directions = [(0,1), (1,0), (0,-1), (-1,0)]
martiran@46	5 tm = [[0, -1], [1, 0]]
martiran@1	6
martiran@5	7 class Cell(object):
martiran@15	8 def __init__(self, x, y, canvas = None):
martiran@1	9 self.x = x
martiran@1	10 self.y = y
martiran@1	11 self.canvas = canvas
martiran@1	12 self.snake = None
martiran@28	13 self.type = 'empty'
martiran@1	14 return
martiran@6	15 def redraw(self):
martiran@54	16 field_size = min(self.canvas.winfo_height(), self.canvas.winfo_width())
martiran@55	17 offset = (self.canvas.winfo_width() - field_size, self.canvas.winfo_height() - field_size)
martiran@15	18 if self.type == 'wall':
martiran@15	19 self.canvas.create_rectangle(offset[0], offset[1], offset[0] + self.xfield_size/21.0, offset[1] + self.yfield_size/21.0, fill="grey")
martiran@15	20 pass
martiran@15	21 elif self.type == 'empty':
martiran@15	22 self.canvas.create_rectangle(offset[0], offset[1], offset[0] + self.xfield_size/21.0, offset[1] + self.yfield_size/21.0, fill="black")
martiran@15	23 pass
martiran@15	24 elif self.type == 'body':
martiran@15	25 self.canvas.create_rectangle(offset[0], offset[1], offset[0] + self.xfield_size/21.0, offset[1] + self.yfield_size/21.0, fill=self.snake.color)
martiran@15	26 pass
martiran@15	27 elif self.type == 'head':
martiran@15	28 self.canvas.create_oval(offset[0], offset[1], offset[0] + self.xfield_size/21.0, offset[1] + self.yfield_size/21.0, fill=self.snake.color)
martiran@15	29 pass
martiran@15	30 elif self.type == 'tail':
martiran@15	31 self.canvas.create_polygon(offset[0], offset[1], offset[0] + self.xfield_size/21.0, offset[1], offset[0] + self.xfield_size/(221.0), offset[1] + self.yfield_size/21.0, fill=self.snake.color)
martiran@15	32 pass
martiran@15	33 return
martiran@6	34 def __eq__(self, pattern):
martiran@52	35 if pattern.type == 'any':
martiran@6	36 return True
martiran@52	37 if pattern.type != self.type:
martiran@6	38 return False
martiran@52	39 if pattern.snake_type == 'my' and pattern.snake != self.snake:
martiran@52	40 return False
martiran@52	41 elif pattern.snake_type == 'enemy' and pattern.snake == self.snake:
martiran@52	42 return False
martiran@52	43 return True
martiran@6	44 def clear(self):
martiran@1	45 self.snake = None
martiran@1	46 self.type = 'empty'
martiran@1	47 return
martiran@1	48
martiran@2	49
martiran@5	50 class Engine(object):
martiran@6	51 def __init__(self, canvas):
martiran@1	52 self.canvas = canvas
martiran@54	53 self.w = min(canvas.winfo_height(), canvas.winfo_width())
martiran@54	54 self.h = min(canvas.winfo_height(), canvas.winfo_width())
martiran@12	55 self.snakes = [None, None, None, None]
martiran@9	56 self.init_field()
martiran@9	57 return
martiran@9	58 def init_field (self):
martiran@9	59 self.field = {}
martiran@9	60 for x in range(21):
martiran@9	61 for y in range(21):
martiran@9	62 self.field[x, y] = Cell(x, y, self.canvas)
martiran@9	63 for y in range(21):
martiran@9	64 self.field[0, y].type = 'wall'
martiran@9	65 self.field[20, y].type = 'wall'
martiran@9	66 for x in range(1,20):
martiran@9	67 self.field[x, 0].type = 'wall'
martiran@9	68 self.field[x, 20].type = 'wall'
martiran@1	69 return
martiran@6	70 def step(self):
martiran@9	71 for snake in self.snakes:
martiran@12	72 if snake == None:
martiran@12	73 pass
martiran@12	74 else:
martiran@12	75 self.legal_moves()
martiran@12	76 self.move_snake(snake)
martiran@12	77 self.refill()
martiran@9	78 self.redraw()
martiran@9	79 return
martiran@9	80 def move_snake(self, snake):
martiran@12	81 applied_dir = None
martiran@12	82 for rule in snake.rules:
martiran@12	83 if applied_dir != None:
martiran@12	84 choose_dir = []
martiran@12	85 for direction in snake.legal_dir:
martiran@12	86 rule.direction = direction
martiran@12	87 if rule.applies() == True:
martiran@12	88 choose_dir.append(direction)
martiran@12	89 pass
martiran@12	90 pass
martiran@12	91 if len(choose_move) != 0:
martiran@12	92 applied_dir = choose_dir[int(rnd.random()*len(choose_dir))]
martiran@12	93 pass
martiran@12	94 else:
martiran@17	95 dir_cell = self.field[snake.cells[0].y + applied_dir[0], snake.cells[0].x + applied_dir[1]]
martiran@17	96 if dir_cell.type == 'empty':
martiran@17	97 snake.cells.insert(0,dir_cell)
martiran@17	98 del snake.cells[-1]
martiran@12	99 pass
martiran@12	100 elif (dir_cell.type == 'tail' and dir_cell.snake != snake):
martiran@17	101 snake.cells.insert(0,dir_cell)
martiran@17	102 del dir_cell.snake.cells[-1]
martiran@12	103 pass
martiran@12	104 break
martiran@12	105 if applied_dir == None:
martiran@12	106 applied_dir = legal_dir[int(rnd.random()*len(legal_dir))]
martiran@17	107 dir_cell = self.field[snake.cells[0].y + applied_dir[0], snake.cells[0].x + applied_dir[1]]
martiran@17	108 if dir_cell.type == 'empty':
martiran@17	109 snake.cells.insert(0,dir_cell)
martiran@17	110 del snake.cells[-1]
martiran@12	111 pass
martiran@12	112 elif (dir_cell.type == 'tail' and dir_cell.snake != snake):
martiran@17	113 snake.cells.insert(0,dir_cell)
martiran@17	114 del dir_cell.snake.cells[-1]
martiran@12	115 pass
martiran@12	116 pass
martiran@14	117 return
martiran@6	118 def create_snake(self, snake_number):
martiran@46	119 cells_id = []
martiran@46	120 for y in range(10):
martiran@56	121 cells_id.append((10, y+1))
martiran@46	122 for rot_num in range(snake_number - 1):
martiran@46	123 for sell in cells_id:
martiran@46	124 cells_id[cells_id.index(sell)] = (tm[0][0]sell[0] + tm[0][1]sell[1],tm[1][0]sell[0] + tm[1][1]sell[1])
martiran@46	125 cells = []
martiran@46	126 for cell in cells_id:
martiran@46	127 cells.append(self.field[sell])
martiran@46	128 color_dic = {
martiran@46	129 1:'blue',
martiran@46	130 2:'green',
martiran@46	131 3:'yellow',
martiran@46	132 4:'red',}
martiran@46	133 self.snakes[snake_number-1] = snake.Snake(cells, color_dic[snake_number])
martiran@1	134 pass
martiran@6	135 def refill(self):
martiran@12	136 for x in range(1,20):
martiran@12	137 for y in range(1,20):
martiran@12	138 self.field[x, y].type = 'empty'
martiran@31	139 self.field[x, y].snake = None
martiran@12	140 pass
martiran@12	141 for snake in self.snakes:
martiran@12	142 if snake == None:
martiran@12	143 pass
martiran@12	144 else:
martiran@31	145 snake.fill()
martiran@12	146 pass
martiran@14	147 return
martiran@9	148 def redraw(self):
martiran@16	149 self.canvas.delete(all)
martiran@32	150 for cell_coord in self.field:
martiran@32	151 self.field[cell_coord].redraw()
martiran@15	152 return
martiran@6	153 def legal_moves(self, snake):
martiran@6	154 snake.legal_dir = []
martiran@6	155 for direction in directions:
martiran@17	156 dir_cell = self.field[snake.cells[0].y + direction[0], snake.cells[0].x + direction[1]]
martiran@12	157 if (dir_cell.type == 'empty' or (dir_cell.type == 'tail' and dir_cell.snake != snake)):
martiran@6	158 snake.legal_dir.append(direction)
martiran@6	159 return
martiran@6	160 return
martiran@6	161