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middle.py
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middle.py
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"""This Module glues together the logic and the system modules."""
from xml.dom import minidom
from system import System
from logic import Logic, Level, Wave
from vector import Vector
from eventmanager import EventManager
from events import KeyPressEvent, MouseClickEvent, ClearScreenEvent, QuitEvent, TickEvent, WaveChangeEvent
from tickemitter import TickEmitter
from inputrecorder import InputRecorder, InputPlayer
class Widget:
def __init__(self, x, y, width, height):
self.x = x
self.y = y
self.width = width
self.height = height
self.border = True
self.border_bold = False
self.show = True
self.invert = False
self.label = ''
self.children = []
self.offset = (0,0)
self.border = True
def add_child(self, child):
self.children.append(child)
child.set_offset((self.x, self.y))
def set_offset(self, offset):
self.offset = offset
child_offset = (offset[0] + self.x, offset[1] + self.y )
for w in self.children:
w.set_offset(child_offset)
class WaveWidget(Widget):
def __init__(self, x, y, width, height):
Widget.__init__(self, x, y, width, height)
self.time = Widget(1,1,width-2, 1)
self.nr_minions = Widget(1,2,width-2, 1)
self.add_child(self.time)
self.add_child(self.nr_minions)
self.time.border = False
self.nr_minions.border = False
def show_time(self, show):
self.time.show = show
def set_time(self, time):
self.time.label = "time left: %0.1f" % time
def set_nr(self, nr):
self.nr_minions.label = "nr of minions: %i" % nr
class WidgetController:
def __init__(self, evm, system):
self.evm = evm
evm.RegisterListener(self)
self.system = system
(max_x, max_y) = system.scrn.getmaxyx()
def Notify(self, event):
pass
def draw_widgets(self, widget):
stack = [widget]
while stack:
w = stack.pop()
if w.show:
stack.extend(w.children)
self.draw_widget(w)
#current_position = (0,0)
def draw_widget(self, widget):
if widget.border:
self.draw_border(widget)
self.draw_label(widget)
def draw_label(self, widget):
width = widget.width
height = widget.height
x = widget.x + widget.offset[0]
y = widget.y + widget.offset[1]
label = widget.label
size = len(label)
pos_x = int(x + (width+1)/2 - (size + 1)/2)
pos_y = int(y + height/2)
self.system.draw_string_at(pos_x, pos_y, label)
def draw_border(self, widget):
width = widget.width
height = widget.height
x = widget.x + widget.offset[0]
y = widget.y + widget.offset[1]
if widget.border_bold:
border_line = '┏'+((width - 2)*'━')+'┓'
self.system.draw_string_at(x, y, border_line)
border_line = '┗'+((width - 2)*'━')+'┛'
self.system.draw_string_at(x, y + height - 1, border_line)
for i in range(1, height-1):
self.system.draw_string_at(x, y + i, '┃')
self.system.draw_string_at(width + x - 1, y + i, '┃')
else:
border_line = '┌'+((width - 2)*'─')+'┐'
self.system.draw_string_at(x, y, border_line)
border_line = '└'+((width - 2)*'─')+'┘'
self.system.draw_string_at(x, y + height - 1, border_line)
for i in range(1, height-1):
self.system.draw_string_at(x, y + i, '│')
self.system.draw_string_at(width + x - 1, y + i, '│')
# global variables
class Middle:
"""It handles the input, keeps track of time and draws objects to
the screen.
"""
@staticmethod
def restore():
"""things to before shutdown"""
System.restorescreen()
def draw_minions(self):
"""Draws minions to screen."""
for minion in self.logic.minions:
self.system.draw_at(minion.pos.to_int(), 'o',
self.system.COLOR_BLACK, self.system.COLOR_YELLOW)
def draw_bullets(self):
"""Draws bullets to screen."""
for bullet in self.logic.bullets:
if self.logic.current_level.tiles[int(bullet.pos.x), int(bullet.pos.y)] == 0:
self.system.draw_at(bullet.pos.to_int(), '*',
self.system.COLOR_BLACK, self.system.COLOR_GREEN)
else:
self.system.draw_at(bullet.pos.to_int(), '*',
self.system.COLOR_BLACK, self.system.COLOR_YELLOW)
def draw_towers(self):
"""Draws towers to screen."""
for tower in self.logic.towers:
self.system.draw_at(tower.pos.to_int(), '#',
self.system.COLOR_BLACK, self.system.COLOR_GREEN)
def draw_map(self):
"""Draws map to screen."""
for x in range(1, self.logic.current_level.max_x + 1):
for y in range(1, self.logic.current_level.max_y + 1):
if self.logic.current_level.tiles[x, y] == 0:
self.system.draw_at(Vector(x, y), ' ',
self.system.COLOR_GREEN, self.system.COLOR_GREEN)
else:
self.system.draw_at(Vector(x, y), ' ',
self.system.COLOR_YELLOW, self.system.COLOR_YELLOW)
def draw_hud(self):
"""draws hud to screen"""
self.windows['lives'].label = "lives: %03d" % self.logic.lives
self.windows['points'].label = "points: %03d" % self.logic.points
self.windows['money'].label = "money: %03d" % self.logic.money
def load_map(self, file_name):
"""Loads map from xml file"""
map_xml = minidom.parse(file_name)
map_tag = map_xml.getElementsByTagName('map')[0]
def get_data(elem, tag):
return elem.getElementsByTagName(tag)[0].firstChild.data
level = Level()
level.max_y = int(get_data(map_tag, 'rows'))
level.max_x = int(get_data(map_tag,'columns'))
row_tag = map_xml.getElementsByTagName('row')
for row in row_tag:
row_data = row.firstChild.data
y = int(row.attributes['pos'].value)
for x in range(1, len(row_data)+1):
level.tiles[x, y] = int(row_data[x-1])
for waypoint in map_xml.getElementsByTagName('waypoint'):
number = int( waypoint.attributes['nr'].value )
x = int( get_data(waypoint,'x'))
y = int( get_data(waypoint,'y'))
level.waypoints[number] = Vector(x, y)
for wave in map_xml.getElementsByTagName('wave'):
w = Wave()
w.offset_wave = int( get_data(wave, 'offset_wave'))
w.offset_minion = int( get_data(wave, 'offset_minion'))
w.hp_minion = int( get_data(wave, 'hp_minion'))
w.nr_minion = int( get_data(wave, 'nr_minion'))
level.waves.append(w)
level.next_wave = level.waves[0]
level.waves.remove(level.next_wave)
self.logic.current_level = level
def Notify(self, event):
if isinstance( event, KeyPressEvent ):
if event.key == 'q':
self.evm.Post(QuitEvent())
if event.key == 'a':
self.logic.add_minion()
if event.key == ' ':
self.logic.current_level.send_next_wave()
elif isinstance( event, MouseClickEvent ):
self.logic.add_tower(event.pos.x, event.pos.y)
elif isinstance( event, TickEvent ):
self.evm.Send(ClearScreenEvent())
self.draw_map()
self.draw_minions()
self.draw_towers()
self.draw_bullets()
self.draw_hud()
self.wc.draw_widgets(self.main_window)
if self.logic.current_level.next_wave and len(self.logic.current_level.active_waves) < len(self.wave_windows):
self.wave_windows[len(self.logic.current_level.active_waves)].set_time(self.logic.current_level.next_wave.offset_wave)
elif isinstance( event, WaveChangeEvent ):
wavelist = []
wavelist.extend(self.logic.current_level.active_waves)
if self.logic.current_level.next_wave:
wavelist.append(self.logic.current_level.next_wave)
wavelist.extend(self.logic.current_level.waves)
for i in range(0, min(len(self.wave_windows), len(wavelist))):
wave = wavelist[i]
window = self.wave_windows[i]
window.set_nr(wave.nr_minion)
window.border_bold = False
window.show_time(False)
for i in range(min(len(self.wave_windows), len(wavelist)),len(self.wave_windows)):
self.wave_windows[i].show = False
if self.logic.current_level.next_wave and len(self.logic.current_level.active_waves) < len(self.wave_windows):
self.wave_windows[len(self.logic.current_level.active_waves)].border_bold = True
self.wave_windows[len(self.logic.current_level.active_waves)].show_time(True)
def __init__(self):
from optparse import OptionParser
parser = OptionParser(version="%prog 0.1.1")
parser.add_option('-r', '--replay',
dest='infile',
help='uses the recorded input instead of the user input')
parser.add_option('-d', '--dump',
dest='outfile',
help='writes the user input into a file')
(options, args) = parser.parse_args()
self.evm = EventManager()
self.evm.RegisterListener(self)
if options.infile:
self.te = InputPlayer(self.evm, options.infile)
else:
self.te = TickEmitter(self.evm)
self.system = System(self.evm)
self.logic = Logic(self.evm)
if options.outfile:
self.input_recorder = InputRecorder(self.evm, options.outfile)
self.load_map('map2.xml')
#########################################
## create windows
#########################################
self.main_window = Widget(0,0,110,27)
self.window = Widget(84,1,25,25)
self.windows = {}
self.windows['lives'] = Widget(1,1,23,3)
self.windows['money'] = Widget(1,4,23,3)
self.windows['points'] = Widget(1,7,23,3)
for w in self.windows.values():
self.window.add_child(w)
self.main_window.add_child(self.window)
self.wave_window = Widget(58,1,25,25)
self.main_window.add_child(self.wave_window)
wave_label = Widget(1,1,23,1)
wave_label.label = 'Waves'
wave_label.border = False
self.wave_window.add_child(wave_label)
self.wave_windows = []
for i in range(0,4):
w = WaveWidget(1,2 + i * 5, 23, 5)
self.wave_windows.append(w)
self.wave_window.add_child(w)
self.wc = WidgetController(self.evm,self.system)
help_window = Widget(1,22,56,4)
help_window1 = Widget(0,1,56,1)
help_window1.label = "Press space to send next wave. Hit q to quit the game."
help_window1.border = False
help_window.add_child(help_window1)
help_window2 = Widget(0,2,56,1)
help_window2.label = "Click anywhere on the map to place a tower."
help_window2.border = False
help_window.add_child(help_window2)
self.main_window.add_child(help_window)
def run(self):
"""The main game loop"""
self.te.Run()
# restore original settings
self.system.restorescreen()