snake: main.py annotate

snake

annotate main.py @ 170:163fc2378113

fixed bag of movind snake without a head, fixes #18

author	Alex Martynov
date	Thu, 23 Dec 2010 20:43:45 +0300
parents	0f7df983d610
children	4a3ae22734b0

rev	line source
martiran@18	1 import Tkinter as tk
Alex@23	2 import tkFileDialog as tkfd
martiran@20	3 import engine
martiran@32	4 import snake
martiran@18	5
martiran@18	6
martiran@18	7
martiran@18	8 class UI(object):
Alex@160	9 """User Interface:
Alex@160	10
Alex@160	11 Atributes:
Alex@160	12
Alex@160	13 - 'root' - root Window game placed at
Alex@160	14 - 'engine' - engine of the game
Alex@160	15 - 'canvas' - Widget field is pictured at
Alex@160	16 - 'step_id' - current step of the game
Alex@160	17 - 'after_id' - identificator of runing game process
Alex@166	18 - 'step_legth' - length of the step (in ms)
Alex@166	19 - 'game_length' - number of the steps in one round of the game"""
martiran@19	20 def __init__ (self):
martiran@136	21 """Create Python Battle game window.
martiran@136	22 Initialyze engige of the game."""
martiran@29	23 self.root = tk.Tk()
martiran@29	24 self.root.title("Python Battle")
martiran@29	25 self.canvas = tk.Canvas(self.root, background = "black")
martiran@19	26 self.canvas.pack(side ="top", fill="both", expand="yes")
me@96	27 self.buttons_pack(self.root).pack(side ="bottom", fill="both", expand="no")
Alex@165	28 self.step_id = 0
martiran@19	29 self.engine = engine.Engine(self.canvas)
martiran@32	30 self.after_id = None
Alex@160	31 self.step_length = 150
Alex@166	32 self.game_length = 200
martiran@18	33 return
martiran@136	34
me@96	35 def buttons_pack(self, root):
martiran@136	36 """Packing the buttons in root frame.
Alex@169	37 Definition of button functions.
Alex@169	38
Alex@169	39 'Load' - ask for snake file load
Alex@169	40 'Run' - runs the game/next round. Next round starts with snakes survived in previous
Alex@169	41 'Step' - do the next dtep of the game
Alex@169	42 'End' - manual end of the game
Alex@169	43 'Restart" - restart the field with snakes of previous round"""
me@96	44 buttons = tk.Frame(root)
Alex@160	45 load_1 = tk.Button(buttons, text="Load 1", command=lambda: self.load(0))
martiran@132	46 load_1.grid(row=1, column=2, stick="news")
Alex@160	47 load_2 = tk.Button(buttons, text="Load 2", command=lambda: self.load(1))
martiran@132	48 load_2.grid(row=2, column=3, stick="news")
Alex@165	49 run_b = tk.Button(buttons, text="Run", command=lambda: self.start())
Alex@160	50 run_b.grid(row=2, column=2, stick="news")
Alex@167	51 restart_b = tk.Button(buttons, text="Restart", command=lambda: self.restart(survived="no"))
Alex@160	52 restart_b.grid(row=1, column=5, stick="news")
Alex@160	53 load_3 = tk.Button(buttons, text="Load 3", command=lambda: self.load(2))
martiran@132	54 load_3.grid(row=3, column=2, stick="news")
Alex@160	55 load_4 = tk.Button(buttons, text="Load 4", command=lambda: self.load(3))
martiran@132	56 load_4.grid(row=2, column=1, stick="news")
me@96	57 step_b = tk.Button(buttons, text="Step", command=lambda: self.step())
martiran@151	58 step_b.grid(row=2, column=5, stick="news")
martiran@151	59 end_b = tk.Button(buttons, text="End", command=lambda: self.end())
martiran@151	60 end_b.grid(row=3, column=5, stick="news")
me@133	61 for column in range(1, 6):
me@133	62 buttons.grid_columnconfigure(column, weight=1)
me@96	63 return buttons
martiran@29	64
Alex@23	65 def load (self, snake_number):
martiran@136	66 """Ask for snake file loading.
martiran@136	67 Initialyzing snake and draw it on the field.
Alex@164	68 Return field back to default (without snakes) after end of the game."""
Alex@168	69 if self.step_id == self.game_length + 666:
martiran@29	70 self.step_id = 0
martiran@130	71 self.engine.snakes = [None, None, None, None]
martiran@29	72 pass
martiran@107	73 if self.step_id == 0:
me@150	74 file = tkfd.askopenfile(title="Open file")
me@150	75 if file == None:
me@150	76 return
martiran@29	77 snake = self.engine.create_snake(snake_number)
me@150	78 snake.load(file)
martiran@29	79 pass
Alex@103	80 self.engine.refill()
Alex@86	81 self.engine.redraw()
Alex@27	82 return
Alex@23	83
Alex@165	84 def start (self):
Alex@165	85 """Init running of the game."""
Alex@166	86 if self.step_id == self.game_length + 666:
Alex@167	87 self.restart(survived="yes")
Alex@97	88 if self.dead_snake_check() == False:
Alex@97	89 return
Alex@165	90 self.engine.psnakes = self.engine.snakes[:]
Alex@165	91 self.run()
Alex@165	92
Alex@165	93 def run (self):
Alex@165	94 """Run the game with 'step_length' ms step
Alex@165	95 After the end of the game - restarts it with snakes survived in
Alex@165	96 previous game"""
Alex@168	97 if self.step_id > self.game_length:
Alex@168	98 self.end()
Alex@168	99 return
martiran@32	100 self.step_id = self.step_id+1
martiran@28	101 self.engine.step()
Alex@160	102 self.after_id = self.canvas.after(self.step_length, self.run)
martiran@28	103 return
Alex@160	104
martiran@28	105 def step (self):
martiran@136	106 """Do the next game step"""
Alex@97	107 if self.dead_snake_check() == False:
Alex@97	108 return
Alex@166	109 if self.step_id <= self.game_length:
martiran@32	110 if self.after_id != None:
martiran@32	111 self.canvas.after_cancel(self.after_id)
martiran@32	112 pass
martiran@32	113 self.step_id = self.step_id+1
martiran@29	114 self.engine.step()
martiran@29	115 pass
martiran@29	116 else:
martiran@29	117 self.end()
martiran@29	118 pass
martiran@29	119 return
Alex@97	120
Alex@97	121 def dead_snake_check(self):
martiran@136	122 """Check the number of snakes alive.
martiran@136	123 End the game if alive snake number is less than two."""
Alex@97	124 dead_snakes = 0
Alex@97	125 for snake in self.engine.snakes:
Alex@97	126 if snake == None:
Alex@97	127 dead_snakes=dead_snakes+1
Alex@97	128 pass
Alex@97	129 if dead_snakes >= 3:
Alex@97	130 self.end()
Alex@97	131 return False
Alex@160	132
Alex@167	133 def restart(self, survived):
Alex@167	134 """"Restarts snakes positions after the end of the game
Alex@167	135
Alex@167	136 Options:
Alex@167	137 survived = "yes" - restarts next round only with snakes survived in previous round
Alex@167	138 survived = "no" - restart next roun with all snakes played in previous round"""
Alex@167	139 if survived == "yes":
Alex@167	140 snake_set = self.engine.snakes
Alex@167	141 else:
Alex@167	142 snake_set = self.engine.psnakes
Alex@163	143 self.step_id = 0
Alex@167	144 for i, snake in enumerate(snake_set):
Alex@167	145 if snake_set[i] != None:
Alex@163	146 self.engine.snakes[i] = snake
Alex@163	147 self.engine.create_snake(i, snake)
Alex@163	148 self.engine.refill()
Alex@163	149 self.engine.redraw()
Alex@23	150
martiran@28	151 def end (self):
martiran@136	152 """End the game and raise the window that tels about it."""
Alex@60	153 if self.after_id != None:
Alex@60	154 self.canvas.after_cancel(self.after_id)
Alex@60	155 pass
Alex@166	156 self.step_id = self.game_length + 666
martiran@29	157 root = tk.Tk()
martiran@29	158 end_label = tk.Label(root, text="End")
martiran@29	159 end_label.pack()
martiran@29	160 root.mainloop()
martiran@18	161 pass
martiran@32	162
me@42	163 if __name__ == "__main__":
me@42	164 snake_batle = UI()
me@42	165 snake_batle.root.mainloop()