a-robots-conundrum/robotgame/block.py

# This file is part of ROBOTGAME
#
# ROBOTGAME 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.
#
# ROBOTGAME is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# ROBOTGAME.  If not, see <http://www.gnu.org/licenses/>.
#
# ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' '
#
#                          block.py
#                     --------------------
#       date created : Tue Aug 7 2012
#          copyright : (C) 2012 Sakse Dalum
#      maintained by : Sakse Dalum <don_s@hongabar.org>

"""
A generic block. And other block derivatives.
"""

import pygame

import worldobject

class Block(worldobject.WorldObject):
    def __init__(self, level, x, y, img, movable=False):
        self.__dict__.update(locals())
        worldobject.WorldObject.__init__(self, level, x, y, movable=movable)

        self.orig_alpha = pygame.surfarray.array_alpha(self.img)

    def update_alpha(self):
        if (self.y + self.z >= self.level.player.y + self.level.player.z):
            self.set_alpha(0.5)
        else:
            self.set_alpha(1)

    def use(self, obj):
        if obj == self.holder:
            obj.holding = None
            self.holder = None
        else:
            obj.holding = self
            self.holder = obj

    def draw(self, window):
        window.blit(self.img, (self.x - 32 - self.level.camera_x,
                               self.y - self.img.get_size()[1] + 24
                               - self.level.camera_y))

class ArrowBlock(Block):
    pass