naja/widgets/robot.py

   1 """Widget to draw the player on the screen"""
   2
   3 import pygame.locals as pgl
   4
   5 from naja.constants import (PLAYER_SIZE, BIT_SIZE, TILE_SIZE, BITS, ACT, KEYS,
   6                             EXAMINE, MOVE)
   7 from naja.events import finish_event
   8 from naja.resources import resources
   9 from naja.resources.mutators import EIGHT_BIT
  10 from naja.widgets.base import Widget
  11
  12 IMG_MAP = {
  13         BITS.CYAN: 'board/robot_cyan.png',
  14         BITS.YELLOW: 'board/robot_yellow.png',
  15         BITS.MAGENTA: 'board/robot_magenta.png',
  16         }
  17
  18
  19 class RobotWidget(Widget):
  20     """Widget which holds a tile on the game board."""
  21     def __init__(self, state):
  22         pos = (state.player.position[0] * TILE_SIZE[0],
  23                state.player.position[1] * TILE_SIZE[1] + BIT_SIZE[1])
  24         super(RobotWidget, self).__init__(pos, PLAYER_SIZE)
  25         self.state = state
  26
  27     def prepare(self):
  28         # Look up the required bits on the board location
  29         self.pos = (self.state.player.position[0] * TILE_SIZE[0],
  30                     self.state.player.position[1] * TILE_SIZE[1] + BIT_SIZE[1])
  31         self.surface = resources.get_image('board/robot.png',
  32                                            transforms=(EIGHT_BIT,)).copy()
  33         for bit, img_name in IMG_MAP.iteritems():
  34             if self.state.player.bits.check_bit(bit):
  35                 bit_img = resources.get_image(img_name,
  36                                               transforms=(EIGHT_BIT,))
  37                 self.surface.blit(bit_img, (0, 0))
  38
  39     def draw(self, surface):
  40         surface.blit(self.surface, self.rect)
  41
  42     def handle_event(self, ev):
  43         if self.state.gameboard.player_mode in (ACT, EXAMINE):
  44             return super(RobotWidget, self).handle_event(ev)
  45         if ev.type == pgl.KEYDOWN:
  46             if ev.key in KEYS.UP:
  47                 if self.state.player.move(BITS.NORTH):
  48                     self.state.gameboard.change_mode(ACT)
  49                     return finish_event()
  50             if ev.key in KEYS.DOWN:
  51                 if self.state.player.move(BITS.SOUTH):
  52                     self.state.gameboard.change_mode(ACT)
  53                     return finish_event()
  54             if ev.key in KEYS.LEFT:
  55                 if self.state.player.move(BITS.WEST):
  56                     self.state.gameboard.change_mode(ACT)
  57                     return finish_event()
  58             if ev.key in KEYS.RIGHT:
  59                 if self.state.player.move(BITS.EAST):
  60                     self.state.gameboard.change_mode(ACT)
  61                     return finish_event()
  62             if ev.key in KEYS.NOMOVE:
  63                 self.state.gameboard.change_mode(ACT)
  64                 return finish_event()
  65             if ev.key in KEYS.SWITCH:
  66                 self.state.gameboard.change_mode(EXAMINE)
  67                 return finish_event()
  68         return super(RobotWidget, self).handle_event(ev)