snake: main.py annotate

snake

annotate main.py @ 174:55aeb245c503

fixed bug of lost previous snakes memory, while turning from run mode to step and back fixes #19

author	Alex Martynov
date	Fri, 24 Dec 2010 00:58:36 +0300
parents	008be193a0a3
children	fde515c7a4c8

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@174	88 if self.step_id == 0:
Alex@174	89 self.engine.psnakes = self.engine.snakes[:]
Alex@165	90 self.run()
Alex@165	91
Alex@165	92 def run (self):
Alex@165	93 """Run the game with 'step_length' ms step
Alex@165	94 After the end of the game - restarts it with snakes survived in
Alex@165	95 previous game"""
Alex@168	96 if self.step_id > self.game_length:
Alex@168	97 self.end()
Alex@168	98 return
Alex@172	99 if self.dead_snake_check() == False:
Alex@172	100 return
martiran@32	101 self.step_id = self.step_id+1
martiran@28	102 self.engine.step()
Alex@160	103 self.after_id = self.canvas.after(self.step_length, self.run)
martiran@28	104 return
Alex@160	105
martiran@28	106 def step (self):
martiran@136	107 """Do the next game step"""
Alex@97	108 if self.dead_snake_check() == False:
Alex@97	109 return
Alex@173	110 if self.step_id == 0:
Alex@173	111 self.engine.psnakes = self.engine.snakes[:]
Alex@166	112 if self.step_id <= self.game_length:
martiran@32	113 if self.after_id != None:
martiran@32	114 self.canvas.after_cancel(self.after_id)
martiran@32	115 pass
martiran@32	116 self.step_id = self.step_id+1
martiran@29	117 self.engine.step()
martiran@29	118 pass
martiran@29	119 else:
martiran@29	120 self.end()
martiran@29	121 pass
martiran@29	122 return
Alex@97	123
Alex@97	124 def dead_snake_check(self):
martiran@136	125 """Check the number of snakes alive.
martiran@136	126 End the game if alive snake number is less than two."""
Alex@97	127 dead_snakes = 0
Alex@97	128 for snake in self.engine.snakes:
Alex@97	129 if snake == None:
Alex@97	130 dead_snakes=dead_snakes+1
Alex@97	131 pass
Alex@97	132 if dead_snakes >= 3:
Alex@97	133 self.end()
Alex@97	134 return False
Alex@160	135
Alex@167	136 def restart(self, survived):
Alex@167	137 """"Restarts snakes positions after the end of the game
Alex@167	138
Alex@167	139 Options:
Alex@167	140 survived = "yes" - restarts next round only with snakes survived in previous round
Alex@167	141 survived = "no" - restart next roun with all snakes played in previous round"""
Alex@167	142 if survived == "yes":
Alex@167	143 snake_set = self.engine.snakes
Alex@167	144 else:
Alex@167	145 snake_set = self.engine.psnakes
Alex@163	146 self.step_id = 0
Alex@167	147 for i, snake in enumerate(snake_set):
Alex@167	148 if snake_set[i] != None:
Alex@163	149 self.engine.snakes[i] = snake
Alex@163	150 self.engine.create_snake(i, snake)
Alex@163	151 self.engine.refill()
Alex@163	152 self.engine.redraw()
Alex@23	153
martiran@28	154 def end (self):
martiran@136	155 """End the game and raise the window that tels about it."""
Alex@60	156 if self.after_id != None:
Alex@60	157 self.canvas.after_cancel(self.after_id)
Alex@60	158 pass
Alex@166	159 self.step_id = self.game_length + 666
martiran@29	160 root = tk.Tk()
martiran@29	161 end_label = tk.Label(root, text="End")
martiran@29	162 end_label.pack()
martiran@29	163 root.mainloop()
martiran@18	164 pass
martiran@32	165
me@42	166 if __name__ == "__main__":
me@42	167 snake_batle = UI()
me@42	168 snake_batle.root.mainloop()