snake: engine.py annotate

snake

annotate engine.py @ 80:2f56e186e75c

Fixed initial value for snake.Rule.direction

author	Danya Alexeyevsky <me.dendik@gmail.com>
date	Mon, 20 Dec 2010 01:08:29 +0300
parents	198e91c5b94c
children	50056998a673

rev	line source
martiran@12	1 import random as rnd
martiran@15	2 import Tkinter as tk
Alex@66	3 import snake
martiran@12	4
martiran@6	5 directions = [(0,1), (1,0), (0,-1), (-1,0)]
martiran@46	6 tm = [[0, -1], [1, 0]]
martiran@1	7
martiran@5	8 class Cell(object):
martiran@15	9 def __init__(self, x, y, canvas = None):
martiran@1	10 self.x = x
martiran@1	11 self.y = y
martiran@1	12 self.canvas = canvas
martiran@1	13 self.snake = None
martiran@28	14 self.type = 'empty'
martiran@1	15 return
martiran@6	16 def redraw(self):
martiran@54	17 field_size = min(self.canvas.winfo_height(), self.canvas.winfo_width())
martiran@55	18 offset = (self.canvas.winfo_width() - field_size, self.canvas.winfo_height() - field_size)
martiran@15	19 if self.type == 'wall':
martiran@15	20 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	21 pass
martiran@15	22 elif self.type == 'empty':
martiran@15	23 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	24 pass
martiran@15	25 elif self.type == 'body':
martiran@15	26 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	27 pass
martiran@15	28 elif self.type == 'head':
martiran@15	29 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	30 pass
martiran@15	31 elif self.type == 'tail':
martiran@15	32 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	33 pass
martiran@15	34 return
martiran@6	35 def __eq__(self, pattern):
martiran@52	36 if pattern.type == 'any':
martiran@6	37 return True
martiran@52	38 if pattern.type != self.type:
martiran@6	39 return False
martiran@52	40 if pattern.snake_type == 'my' and pattern.snake != self.snake:
martiran@52	41 return False
martiran@52	42 elif pattern.snake_type == 'enemy' and pattern.snake == self.snake:
martiran@52	43 return False
martiran@52	44 return True
martiran@6	45 def clear(self):
martiran@1	46 self.snake = None
martiran@1	47 self.type = 'empty'
martiran@1	48 return
martiran@1	49
martiran@2	50
martiran@5	51 class Engine(object):
martiran@6	52 def __init__(self, canvas):
martiran@1	53 self.canvas = canvas
martiran@54	54 self.w = min(canvas.winfo_height(), canvas.winfo_width())
martiran@54	55 self.h = min(canvas.winfo_height(), canvas.winfo_width())
martiran@12	56 self.snakes = [None, None, None, None]
martiran@9	57 self.init_field()
martiran@9	58 return
martiran@9	59 def init_field (self):
martiran@9	60 self.field = {}
martiran@9	61 for x in range(21):
martiran@9	62 for y in range(21):
martiran@9	63 self.field[x, y] = Cell(x, y, self.canvas)
martiran@9	64 for y in range(21):
martiran@9	65 self.field[0, y].type = 'wall'
martiran@9	66 self.field[20, y].type = 'wall'
martiran@9	67 for x in range(1,20):
martiran@9	68 self.field[x, 0].type = 'wall'
martiran@9	69 self.field[x, 20].type = 'wall'
martiran@1	70 return
martiran@6	71 def step(self):
Alex@62	72 for i, snake in enumerate(self.snakes):
Alex@60	73 if len(snake.cells) == 0:
Alex@62	74 self.snakes[i] = None
martiran@12	75 if snake == None:
martiran@12	76 pass
martiran@12	77 else:
Alex@66	78 self.legal_moves(snake)
martiran@12	79 self.move_snake(snake)
martiran@12	80 self.refill()
martiran@9	81 self.redraw()
martiran@9	82 return
martiran@9	83 def move_snake(self, snake):
martiran@12	84 applied_dir = None
martiran@12	85 for rule in snake.rules:
martiran@12	86 if applied_dir != None:
martiran@12	87 choose_dir = []
martiran@12	88 for direction in snake.legal_dir:
martiran@12	89 rule.direction = direction
martiran@12	90 if rule.applies() == True:
martiran@12	91 choose_dir.append(direction)
martiran@12	92 pass
martiran@12	93 pass
martiran@12	94 if len(choose_move) != 0:
martiran@12	95 applied_dir = choose_dir[int(rnd.random()*len(choose_dir))]
martiran@12	96 pass
martiran@12	97 else:
martiran@17	98 dir_cell = self.field[snake.cells[0].y + applied_dir[0], snake.cells[0].x + applied_dir[1]]
martiran@17	99 if dir_cell.type == 'empty':
martiran@17	100 snake.cells.insert(0,dir_cell)
martiran@17	101 del snake.cells[-1]
martiran@12	102 pass
martiran@12	103 elif (dir_cell.type == 'tail' and dir_cell.snake != snake):
martiran@17	104 snake.cells.insert(0,dir_cell)
martiran@17	105 del dir_cell.snake.cells[-1]
martiran@12	106 pass
martiran@12	107 break
martiran@12	108 if applied_dir == None:
Alex@71	109 applied_dir = snake.legal_dir[int(rnd.random()*len(snake.legal_dir))]
martiran@17	110 dir_cell = self.field[snake.cells[0].y + applied_dir[0], snake.cells[0].x + applied_dir[1]]
martiran@17	111 if dir_cell.type == 'empty':
martiran@17	112 snake.cells.insert(0,dir_cell)
martiran@17	113 del snake.cells[-1]
martiran@12	114 pass
martiran@12	115 elif (dir_cell.type == 'tail' and dir_cell.snake != snake):
martiran@17	116 snake.cells.insert(0,dir_cell)
martiran@17	117 del dir_cell.snake.cells[-1]
martiran@12	118 pass
martiran@12	119 pass
martiran@14	120 return
martiran@6	121 def create_snake(self, snake_number):
martiran@46	122 cells_id = []
martiran@46	123 for y in range(10):
martiran@56	124 cells_id.append((10, y+1))
martiran@46	125 for rot_num in range(snake_number - 1):
Alex@62	126 for i, cell in enumerate(cells_id):
Alex@62	127 cells_id[i] = (tm[0][0]cell[0] + tm[0][1]cell[1],tm[1][0]cell[0] + tm[1][1]cell[1])
martiran@46	128 cells = []
martiran@46	129 for cell in cells_id:
Alex@60	130 cells.append(self.field[cell])
martiran@46	131 color_dic = {
martiran@46	132 1:'blue',
martiran@46	133 2:'green',
martiran@46	134 3:'yellow',
martiran@46	135 4:'red',}
martiran@46	136 self.snakes[snake_number-1] = snake.Snake(cells, color_dic[snake_number])
Alex@77	137 return self.snakes[snake_number-1]
martiran@6	138 def refill(self):
martiran@12	139 for x in range(1,20):
martiran@12	140 for y in range(1,20):
martiran@12	141 self.field[x, y].type = 'empty'
martiran@31	142 self.field[x, y].snake = None
martiran@12	143 pass
martiran@12	144 for snake in self.snakes:
martiran@12	145 if snake == None:
martiran@12	146 pass
martiran@12	147 else:
martiran@31	148 snake.fill()
martiran@12	149 pass
martiran@14	150 return
martiran@9	151 def redraw(self):
martiran@16	152 self.canvas.delete(all)
martiran@32	153 for cell_coord in self.field:
martiran@32	154 self.field[cell_coord].redraw()
martiran@15	155 return
martiran@6	156 def legal_moves(self, snake):
martiran@6	157 snake.legal_dir = []
martiran@6	158 for direction in directions:
martiran@17	159 dir_cell = self.field[snake.cells[0].y + direction[0], snake.cells[0].x + direction[1]]
martiran@12	160 if (dir_cell.type == 'empty' or (dir_cell.type == 'tail' and dir_cell.snake != snake)):
martiran@6	161 snake.legal_dir.append(direction)
martiran@6	162 return
martiran@6	163 return
martiran@6	164