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#!/usr/bin/env python
from __future__ import division
import time
import pyglet
pyglet.resource.path = ['images']
pyglet.resource.reindex()
from pyglet.gl import *
from snake import SnakeEngine
def scale_aspect((source_width, source_height), (target_width, target_height)):
source_aspect = source_width / source_height
target_aspect = target_width / target_height
if source_aspect > target_aspect:
# restrict width
width = target_width
height = width / source_aspect
else:
# restrict height
height = target_height
width = height * source_aspect
return (width, height)
class PygletSnakeEngine(SnakeEngine, pyglet.window.Window):
EDGE_COLOR = (255, 255, 255, 255)
EDGE_WIDTH = 2
def __init__(self, rows, columns, n_apples):
super(PygletSnakeEngine, self).__init__(rows, columns, n_apples)
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
pyglet.clock.schedule_interval(lambda t: self.update_snakes(), 0.025)
def new_game(self, rows, columns, n_apples):
super(PygletSnakeEngine, self).new_game(rows, columns, n_apples)
# make board surface
self.board_width, self.board_height = scale_aspect(
(columns, rows), (self.width, self.height)
)
# load sprites
xscale = self.board_width / self.columns
yscale = self.board_height / self.rows
self.apple = pyglet.resource.image('apple.png')
self.apple.size = scale_aspect(
(self.apple.width, self.apple.height),
(xscale, yscale)
)
self.eyes = pyglet.resource.image('eyes.png')
self.eyes.size = scale_aspect(
(self.eyes.width, self.eyes.height),
(xscale, yscale)
)
def on_draw(self):
self.clear()
xscale = self.board_width / self.columns
yscale = self.board_height / self.rows
# Draw grid.
for y, row in enumerate(self.board):
for x, cell in enumerate(row):
left = int(x * xscale)
top = self.height - int(y * yscale)
right = int((x + 1) * xscale)
bottom = self.height - int((y + 1) * yscale)
r = (left, top, right, top, right, bottom, left, bottom)
# Draw a square.
glLineWidth(self.EDGE_WIDTH)
pyglet.graphics.draw(4, GL_LINE_LOOP,
('v2f', r),
('c4B', self.EDGE_COLOR * 4))
# Draw the things on the square.
if cell == Squares.APPLE:
w, h = self.apple.size
self.apple.blit(left + (xscale - w) / 2.0, top - h, width=w, height=h)
elif cell.isalpha(): # Snake...
colour = self.bots[cell.lower()][1] + (255,)
glPolygonMode(GL_FRONT, GL_FILL)
pyglet.graphics.draw(4, GL_POLYGON,
('v2f', r),
('c4B', colour * 4),
)
if cell.isupper(): # Snake head
w, h = self.eyes.size
self.eyes.blit(left, top - h, width=w, height=h)
def update_snakes(self, *args):
if not self.bots:
pyglet.app.exit()
super(PygletSnakeEngine, self).update_snakes(*args)
if __name__ == '__main__':
from bots import *
from oldbot import BotWrapper
game = PygletSnakeEngine(25, 25, 50)
game.add_bot(right_bot)
game.add_bot(random_bot)
game.add_bot(random_bounds_bot)
game.add_bot(random_square_bot)
game.add_bot(BotWrapper('oldbots/peter.py'))
pyglet.app.run()
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