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Diffstat (limited to 'yupana.py')
| -rw-r--r-- | yupana.py | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/yupana.py b/yupana.py new file mode 100644 index 0000000..c5bbef1 --- /dev/null +++ b/yupana.py @@ -0,0 +1,335 @@ +# -*- coding: utf-8 -*- +#Copyright (c) 2011 Walter Bender + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# You should have received a copy of the GNU General Public License +# along with this library; if not, write to the Free Software +# Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA + + +import gtk +import cairo + +from random import uniform + +from gettext import gettext as _ + +import logging +_logger = logging.getLogger('yupana-activity') + +try: + from sugar.graphics import style + GRID_CELL_SIZE = style.GRID_CELL_SIZE +except ImportError: + GRID_CELL_SIZE = 0 + +from sprites import Sprites, Sprite + +# Grid dimensions must be even +TEN = 10 +SIX = 6 +DOT_SIZE = 20 + + +class Yupana(): + + def __init__(self, canvas, parent=None, colors=['#A0FFA0', '#FF8080']): + self._activity = parent + self._colors = ['#FFFFFF'] + self._colors.append(colors[0]) + self._colors.append(colors[1]) + self._colors.append('#000000') + + self._canvas = canvas + if parent is not None: + parent.show_all() + self._parent = parent + + self._canvas.set_flags(gtk.CAN_FOCUS) + self._canvas.add_events(gtk.gdk.BUTTON_PRESS_MASK) + self._canvas.connect("expose-event", self._expose_cb) + self._canvas.connect("button-press-event", self._button_press_cb) + + self._width = gtk.gdk.screen_width() + self._height = gtk.gdk.screen_height() - (GRID_CELL_SIZE * 1.5) + self._scale = self._width / (20 * DOT_SIZE * 1.1) + self._dot_size = int(DOT_SIZE * self._scale) + self._space = int(self._dot_size / 5.) + self.we_are_sharing = False + self.playing_with_robot = False + + # Generate the sprites we'll need... + self._sprites = Sprites(self._canvas) + self._dots = [] + for p in range(SIX): + y = self._height - self._space + Sprite(self._sprites, 0, y, self._line(vertical=False)) + + x = int(p * self._width / 6) + self._space + y -= self._dot_size + for d in range(3): # bottom of fives row + self._dots.append( + Sprite(self._sprites, x, y, + self._new_dot(self._colors[0]))) + self._dots[-1].type = 0 # not set + x += self._dot_size + self._space + x = int((p * self._width / 6.) + self._dot_size / 2.) + self._space + y -= self._dot_size + self._space + for d in range(2): # top of fives row + self._dots.append( + Sprite(self._sprites, x, y, + self._new_dot(self._colors[0]))) + self._dots[-1].type = 0 # not set + x += self._dot_size + self._space + + y -= self._dot_size + Sprite(self._sprites, 0, y, self._line(vertical=False)) + + x = int((p * self._width / 6.) + self._dot_size / 2.) + self._space + y -= self._dot_size + for d in range(2): # bottom of threes row + self._dots.append( + Sprite(self._sprites, x, y, + self._new_dot(self._colors[0]))) + self._dots[-1].type = 0 # not set + x += self._dot_size + self._space + x = int((p * self._width / 6.) + self._dot_size) + self._space + y -= self._dot_size + self._space + for d in range(1): # top of threes row + self._dots.append( + Sprite(self._sprites, x, y, + self._new_dot(self._colors[0]))) + self._dots[-1].type = 0 # not set + x += self._dot_size + self._space + + y -= self._dot_size + Sprite(self._sprites, 0, y, self._line(vertical=False)) + + x = int((p * self._width / 6.) + self._dot_size / 2.) + self._space + y -= self._dot_size + for d in range(2): # twos row + self._dots.append( + Sprite(self._sprites, x, y, + self._new_dot(self._colors[0]))) + self._dots[-1].type = 0 # not set + x += self._dot_size + self._space + + y -= self._dot_size + Sprite(self._sprites, 0, y, self._line(vertical=False)) + + x = int((p * self._width / 6.) + self._dot_size) + self._space + y -= self._dot_size + for d in range(1): # ones row + self._dots.append( + Sprite(self._sprites, x, y, + self._new_dot(self._colors[0]))) + self._dots[-1].type = 0 # not set + x += self._dot_size + self._space + + y -= self._dot_size + Sprite(self._sprites, 0, y, self._line(vertical=False)) + + for p in range(SIX - 1): + x = int((p + 1) * self._width / 6) + Sprite(self._sprites, x - 1, y, + self._line(vertical=True)) + + self._number_box = Sprite(self._sprites, 0, 0, self._box()) + self._number_box.set_label_attributes(72) + + # and initialize a few variables we'll need. + self._all_clear() + + def _all_clear(self): + ''' Things to reinitialize when starting up a new game. ''' + self._sum = 0 + for dot in self._dots: + if dot.type > 0: + dot.type = 0 + dot.set_shape(self._new_dot(self._colors[0])) + dot.set_label('') + self._set_label(str(self._sum)) + + def _initiating(self): + return self._activity.initiating + + def new_game(self): + ''' Create a new yupana. ''' + self._all_clear() + + if self.we_are_sharing: + _logger.debug('sending a new yupana') + self._parent.send_new_game() + + def restore_game(self, dot_list): + ''' Restore a yumpana from the Journal or share ''' + for i, dot in enumerate(dot_list): + self._dots[i].type = dot + self._dots[i].set_shape(self._new_dot( + self._colors[self._dots[i].type])) + + def save_game(self): + ''' Return dot list and orientation for saving to Journal or + sharing ''' + dot_list = [] + for dot in self._dots: + dot_list.append(dot.type) + return dot_list + + def _set_label(self, string): + ''' Set the label in the toolbar or the window frame. ''' + self._number_box.set_label(string) + self._activity.status.set_label(string) + + def _button_press_cb(self, win, event): + win.grab_focus() + x, y = map(int, event.get_coords()) + + spr = self._sprites.find_sprite((x, y), inverse=True) + if spr == None: + return + + if spr.type is not None: + spr.type += 1 + spr.type %= 2 + spr.set_shape(self._new_dot(self._colors[spr.type])) + + if self.we_are_sharing: + _logger.debug('sending a click to the share') + self._parent.send_dot_click(self._dots.index(spr), + spr.type) + + i = 5 - self._dots.index(spr) / (TEN + 1) + if spr.type == 1: + self._sum += 10 ** i + else: + self._sum -= 10 ** i + self._set_label(self._sum) + return True + + def remote_button_press(self, dot, color): + ''' Receive a button press from a sharer ''' + self._dots[dot].type = color + self._dots[dot].set_shape(self._new_dot(self._colors[color])) + + def set_sharing(self, share=True): + _logger.debug('enabling sharing') + self.we_are_sharing = share + + def _grid_to_dot(self, pos): + ''' calculate the dot index from a column and row in the grid ''' + return pos[0] + pos[1] * TEN + + def _dot_to_grid(self, dot): + ''' calculate the grid column and row for a dot ''' + return [dot % TEN, int(dot / TEN)] + + def _expose_cb(self, win, event): + self.do_expose_event(event) + + def do_expose_event(self, event): + ''' Handle the expose-event by drawing ''' + # Restrict Cairo to the exposed area + cr = self._canvas.window.cairo_create() + cr.rectangle(event.area.x, event.area.y, + event.area.width, event.area.height) + cr.clip() + # Refresh sprite list + self._sprites.redraw_sprites(cr=cr) + + def _destroy_cb(self, win, event): + gtk.main_quit() + + def _new_dot(self, color): + ''' generate a dot of a color color ''' + self._dot_cache = {} + if not color in self._dot_cache: + self._stroke = color + self._fill = color + self._svg_width = self._dot_size + self._svg_height = self._dot_size + pixbuf = svg_str_to_pixbuf( + self._header() + \ + self._circle(self._dot_size / 2., self._dot_size / 2., + self._dot_size / 2.) + \ + self._footer()) + + surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, + self._svg_width, self._svg_height) + context = cairo.Context(surface) + context = gtk.gdk.CairoContext(context) + context.set_source_pixbuf(pixbuf, 0, 0) + context.rectangle(0, 0, self._svg_width, self._svg_height) + context.fill() + self._dot_cache[color] = surface + + return self._dot_cache[color] + + def _line(self, vertical=True): + ''' Generate a center line ''' + if vertical: + self._svg_width = 3 + self._svg_height = self._dot_size * 10 + self._space * 2 + return svg_str_to_pixbuf( + self._header() + \ + self._rect(3, self._dot_size * 10 + self._space * 2, 0, 0) + \ + self._footer()) + else: + self._svg_width = self._width + self._svg_height = 3 + return svg_str_to_pixbuf( + self._header() + \ + self._rect(self._width, 3, 0, 0) + \ + self._footer()) + + def _box(self): + ''' Generate a box to store a number ''' + self._svg_width = self._width + self._svg_height = self._dot_size * 3 + return svg_str_to_pixbuf( + self._header() + \ + self._rect(self._svg_width, self._svg_height, 0, 0, + color='white') + \ + self._footer()) + + def _header(self): + return '<svg\n' + 'xmlns:svg="http://www.w3.org/2000/svg"\n' + \ + 'xmlns="http://www.w3.org/2000/svg"\n' + \ + 'xmlns:xlink="http://www.w3.org/1999/xlink"\n' + \ + 'version="1.1"\n' + 'width="' + str(self._svg_width) + '"\n' + \ + 'height="' + str(self._svg_height) + '">\n' + + def _rect(self, w, h, x, y, color='black'): + svg_string = ' <rect\n' + svg_string += ' width="%f"\n' % (w) + svg_string += ' height="%f"\n' % (h) + svg_string += ' rx="%f"\n' % (0) + svg_string += ' ry="%f"\n' % (0) + svg_string += ' x="%f"\n' % (x) + svg_string += ' y="%f"\n' % (y) + if color == 'black': + svg_string += 'style="fill:#000000;stroke:#000000;"/>\n' + else: + svg_string += 'style="fill:#ffffff;stroke:#ffffff;"/>\n' + return svg_string + + def _circle(self, r, cx, cy): + return '<circle style="fill:' + str(self._fill) + ';stroke:' + \ + str(self._stroke) + ';" r="' + str(r - 0.5) + '" cx="' + \ + str(cx) + '" cy="' + str(cy) + '" />\n' + + def _footer(self): + return '</svg>\n' + + +def svg_str_to_pixbuf(svg_string): + """ Load pixbuf from SVG string """ + pl = gtk.gdk.PixbufLoader('svg') + pl.write(svg_string) + pl.close() + pixbuf = pl.get_pixbuf() + return pixbuf |