tanchiki: tk_ui.py annotate

tanchiki

annotate tk_ui.py @ 50:21d63c918715

Fixed bug: was unable to display bullets.

author	Daniil Alexeyevsky <me.dendik@gmail.com>
date	Mon, 20 Dec 2010 21:10:48 +0300
parents	ffd963641fd4
children	f6d3c0539e8c

rev	line source
me@43	1 #!/usr/bin/python
me@34	2 import math
me@34	3 import Tkinter as tk
me@38	4 import body
me@50	5 from body import Tank as BaseTank, Bullet
me@34	6 from game import Game
me@40	7 from user import User
me@46	8 from vector import Vector
me@38	9
me@38	10 game_size = 100, 100
me@38	11 keys = {
me@38	12 'a': 'base_left',
me@38	13 'd': 'base_right',
me@38	14 'q': 'turret_left',
me@38	15 'e': 'turret_right',
me@38	16 'w': 'accelerate',
me@38	17 's': 'decelerate',
me@38	18 'x': 'fire',
me@38	19 }
me@38	20
me@44	21 welcome = """Press F5 to start
me@44	22
me@44	23 Keys are:
me@44	24 a, d -- turn tank
me@44	25 q, e -- turn muzzle
me@44	26 w, s -- change speed
me@44	27 x -- fire"""
me@44	28
me@50	29 class Tank(BaseTank):
me@38	30
me@38	31 def on_tick(self, tanks, bullets):
me@38	32 if self.user.base_left:
me@49	33 self.rotate_base(-body.base_angle)
me@49	34 if self.user.base_right:
me@46	35 self.rotate_base(body.base_angle)
me@38	36 if self.user.turret_left:
me@49	37 self.rotate_turret(-body.turret_angle)
me@49	38 if self.user.turret_right:
me@46	39 self.rotate_turret(body.turret_angle)
me@38	40 if self.user.accelerate:
me@46	41 self.accelerate(body.speed_delta)
me@38	42 if self.user.decelerate:
me@46	43 self.accelerate(-body.speed_delta)
me@38	44 if self.user.fire:
me@38	45 self.fire()
me@34	46
me@34	47 class UI(object):
me@38	48
me@34	49 def __init__(self):
me@34	50 self.init_game()
me@34	51 self.init_ui()
me@45	52 self.display_welcome()
me@34	53
me@38	54 def init_game(self):
me@38	55 self.user = User(keys)
me@40	56 w, h = game_size
me@46	57 game = self.game = Game([], [self.user], w, h)
me@46	58 tank = Tank(Vector(50, 50), self.user, self.game)
me@46	59 game.bodies.append(tank)
me@38	60
me@34	61 def init_ui(self):
me@34	62 root = self.root = tk.Tk()
me@47	63 root.bind("<KeyPress>", self.on_keypress)
me@47	64 root.bind("<KeyRelease>", self.on_keyrelease)
me@34	65 canvas = self.canvas = tk.Canvas(root, background="black")
me@34	66 canvas.pack(fill="both", expand="yes")
me@34	67
me@44	68 def display_welcome(self):
me@45	69 root, canvas = self.root, self.canvas
me@41	70 root.update()
me@41	71 w, h = canvas.winfo_width(), canvas.winfo_height()
me@44	72 canvas.create_rectangle(0, 0, w, h, fill="#211")
me@44	73 canvas.create_text(w/2, h/2, text=welcome,
me@44	74 fill="red", justify="center", font="bold 15")
me@41	75
me@47	76 def on_keypress(self, ev):
me@41	77 if ev.keysym == "F5":
me@41	78 self.step()
me@47	79 self.user.on_key(ev.keysym, True)
me@47	80
me@47	81 def on_keyrelease(self, ev):
me@47	82 self.user.on_key(ev.keysym, False)
me@34	83
me@34	84 def step(self):
me@34	85 self.root.after(100, self.step)
me@40	86 self.game.step()
me@34	87 self.redraw()
me@34	88
me@34	89 def redraw(self):
me@34	90 self.canvas.delete("all")
me@34	91 for body in self.game.bodies:
me@34	92 p = body.position
me@34	93 lt = p + Vector(-1,-1) * body.radius
me@34	94 rb = p + Vector(1,1) * body.radius
me@47	95
me@48	96 v1 = Vector(body.radius, 0)
me@48	97 v1.phi = body.velocity.phi
me@48	98 vb = p - v1
me@48	99 ve = p + v1 * 2
me@48	100 self.canvas.create_line(vb.x, vb.y, ve.x, ve.y, fill="darkgray", width=body.radius*2)
me@48	101
me@50	102 if isinstance(body, BaseTank):
me@48	103 t = body.turret * body.radius * 1.5 + p
me@48	104 self.canvas.create_oval(lt.x, lt.y, rb.x, rb.y, fill="darkgreen")
me@48	105 self.canvas.create_line(p.x, p.y, t.x, t.y, fill="orange", width=2)
me@34	106 elif isinstance(body, Bullet):
me@50	107 self.canvas.create_oval(lt.x, lt.y, rb.x, rb.y, outline="red")
me@50	108 else:
me@50	109 raise AssertionError("Unknown object type: %s" % body.__class__.__name__)
me@34	110
me@34	111 if __name__ == "__main__":
me@34	112 UI().root.mainloop()