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#!/usr/bin/env python
# Copyright (C) 2011, One Laptop Per Child
# Author, Gonzalo Odiard
# License: LGPLv2
#
# The class TopMapView draw a map from the top
from gi.repository import Gtk
from game_map import GameMap
# view_data = width, height, show_position
def draw(ctx, game_map, view_data):
# calculate cell size
cell_width = view_data['width'] / game_map.data['max_x']
cell_height = view_data['height'] / game_map.data['max_y']
cell_size = min(cell_width, cell_height)
map_width = cell_size * game_map.data['max_x']
margin_x = (view_data['width'] - map_width) / 2
map_height = cell_size * game_map.data['max_y']
margin_y = (view_data['height'] - map_height) / 2
door_width = cell_size / 3
if 'x' in view_data:
margin_x = view_data['x']
if 'y' in view_data:
margin_y = view_data['y']
# background
ctx.rectangle(margin_x, margin_y, map_width, map_height)
fill = (0, 0, 0)
stroke = (1, 1, 1)
ctx.set_source_rgb(*fill)
ctx.fill_preserve()
ctx.set_source_rgb(*stroke)
ctx.stroke()
# draw cells
for x in range(game_map.data['max_x']):
for y in range(game_map.data['max_y']):
# Draw North
direction = 'N'
wall_info = game_map.get_wall_info(x, y, direction)
x_pos = margin_x + x * cell_size
y_pos = margin_y + y * cell_size
if wall_info is not None:
if game_map.have_door(x, y, direction):
# draw door
ctx.move_to(x_pos, y_pos)
ctx.line_to(x_pos + door_width, y_pos)
ctx.stroke()
ctx.move_to(x_pos + door_width * 2, y_pos)
ctx.line_to(x_pos + cell_size, y_pos)
else:
ctx.move_to(x_pos, y_pos)
ctx.line_to(x_pos + cell_size, y_pos)
ctx.stroke()
# Draw West
direction = 'W'
wall_info = game_map.get_wall_info(x, y, direction)
if wall_info is not None:
if game_map.have_door(x, y, direction):
# draw door
ctx.move_to(x_pos, y_pos)
ctx.line_to(x_pos, y_pos + door_width)
ctx.stroke()
ctx.move_to(x_pos, y_pos + door_width * 2)
ctx.line_to(x_pos, y_pos + cell_size)
else:
ctx.move_to(x_pos, y_pos)
ctx.line_to(x_pos, y_pos + cell_size)
ctx.stroke()
if view_data['show_position'] is not None:
x = view_data['show_position']['x']
y = view_data['show_position']['y']
direction = view_data['show_position']['direction']
x_pos = margin_x + x * cell_size + cell_size / 2
y_pos = margin_y + y * cell_size + cell_size / 2
border = 3
if direction == 'N':
point2_x = margin_x + x * cell_size + border
point2_y = margin_y + y * cell_size + border
point3_x = margin_x + (x + 1) * cell_size - border
point3_y = margin_y + y * cell_size + border
elif direction == 'E':
point2_x = margin_x + (x + 1) * cell_size - border
point2_y = margin_y + y * cell_size + border
point3_x = margin_x + (x + 1) * cell_size - border
point3_y = margin_y + (y + 1) * cell_size - border
elif direction == 'S':
point2_x = margin_x + (x + 1) * cell_size - border
point2_y = margin_y + (y + 1) * cell_size - border
point3_x = margin_x + x * cell_size + border
point3_y = margin_y + (y + 1) * cell_size - border
elif direction == 'W':
point2_x = margin_x + x * cell_size + border
point2_y = margin_y + (y + 1) * cell_size - border
point3_x = margin_x + x * cell_size + border
point3_y = margin_y + y * cell_size + border
ctx.move_to(x_pos, y_pos)
ctx.line_to(point2_x, point2_y)
ctx.line_to(point3_x, point3_y)
ctx.close_path()
fill = (1, 0, 0)
ctx.set_source_rgb(*fill)
ctx.fill()
class TopMapView(Gtk.DrawingArea):
def __init__(self, game_map, width, height):
self._game_map = game_map
self._width = width
self._height = height
self._show_position = None
super(TopMapView, self).__init__()
self.set_size_request(width, height)
self.connect('draw', self.__draw_cb)
def show_position(self, x, y, direction):
self._show_position = {'x': x, 'y': y, 'direction': direction}
self.queue_draw()
def hide_position(self, x, y, direction):
self._show_position = None
self.queue_draw()
def __draw_cb(self, widget, ctx):
ctx.save()
# set a clip region for the expose event
#ctx.rectangle(event.area.x, event.area.y, event.area.width,
# event.area.height)
#ctx.clip()
view_data = {'width': self._width, 'height': self._height,
'show_position': self._show_position}
draw(ctx, self._game_map, view_data)
ctx.restore()
return False
def main():
window = Gtk.Window()
game_map = GameMap()
map_view = TopMapView(game_map, 200, 200)
window.add(map_view)
window.connect("destroy", Gtk.main_quit)
window.show_all()
Gtk.main()
if __name__ == "__main__":
main()
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