1 from erdslangetjie.constants import TILE_SIZE, LEFT, RIGHT, UP, DOWN
3 from kivy.app import App
4 from kivy.uix.widget import Widget
5 from kivy.uix.relativelayout import RelativeLayout
6 from kivy.uix.scrollview import ScrollView
7 from kivy.uix.label import Label
8 from kivy.uix.popup import Popup
9 from kivy.graphics import Color, Rectangle
10 from kivy.utils import platform
11 from kivy.clock import Clock
12 from kivy.config import Config
14 from erdslangetjie.level import LevelList
15 from erdslangetjie.data import load_image
16 from erdslangetjie.player import ThePlayer, Nemesis
19 if platform() != 'android':
20 Config.set('graphics', 'width', '1026')
21 Config.set('graphics', 'height', '760')
24 class GameWindow(RelativeLayout):
26 def __init__(self, level_list, app):
27 self.level_list = level_list
28 self.level_obj = self.level_list.get_current_level()
29 self.level_obj.load_tiles()
34 cols, rows = self.level_obj.get_size()
36 super(GameWindow, self).__init__(
37 size=(cols * TILE_SIZE, rows * TILE_SIZE),
38 size_hint=(None, None))
40 self.x_scroll_margin = float(TILE_SIZE) / self.view.size[0]
41 self.y_scroll_margin = float(TILE_SIZE) / self.view.size[1]
43 self.mouse_move = False
45 self.player = ThePlayer()
46 self.nemesis = Nemesis()
47 if not self.level_obj.enter_pos:
48 raise RuntimeError('No entry point')
49 self.player_tile = None
50 self.nemesis_tile = None
51 self.timer_set = False
53 self.player.pos = self.level_obj.enter_pos
54 if platform() != 'android':
56 # We need to delay this import until after the window creation by
57 # the app, else our size config doesn't work
58 from kivy.core.window import Window
59 self.keyboard = Window.request_keyboard(self._closed, self)
60 self.keyboard.bind(on_key_down=self._on_key_down)
65 tiles = self.level_obj.get_tiles()
67 for tile_line in tiles:
69 for tile in tile_line:
70 node = Widget(size=(TILE_SIZE, TILE_SIZE),
72 size_hint=(None, None))
76 Rectangle(pos=node.pos, size=node.size,
78 self.tiles[(bx, by)] = node
82 def draw_player(self):
84 self.remove_widget(self.player_tile)
85 sprite_pos = (self.player.pos[0] * TILE_SIZE,
86 self.player.pos[1] * TILE_SIZE)
87 self.player_tile = Widget(size=(TILE_SIZE, TILE_SIZE),
89 with self.player_tile.canvas:
91 Rectangle(pos=sprite_pos, size=self.player_tile.size,
92 texture=self.player.get_texture())
93 self.add_widget(self.player_tile)
94 for offset in [(TILE_SIZE - 1, TILE_SIZE - 1),
95 (-TILE_SIZE + 1, TILE_SIZE - 1),
96 (TILE_SIZE - 1, -TILE_SIZE + 1),
97 (-TILE_SIZE + 1, -TILE_SIZE + 1),
98 (0, 2 * TILE_SIZE - 2),
99 (-2 * TILE_SIZE + 2, 0),
100 (2 * TILE_SIZE - 2, 0),
101 (0, -2 * TILE_SIZE + 2),
103 # Aim is to ensure a 'neighbourhood' around the player
104 # is visible if possible
105 check_point = (sprite_pos[0] + offset[0] + TILE_SIZE / 2,
106 sprite_pos[1] + offset[1] + TILE_SIZE / 2)
107 true_point = self.to_parent(*check_point)
108 if check_point[0] < 0:
110 if check_point[1] < 0:
112 if check_point[0] >= self.size[0]:
114 if check_point[1] >= self.size[1]:
116 while not self.included(true_point, 0):
118 if true_point[0] >= self.view.size[0]:
119 self.view.scroll_x += self.x_scroll_margin
120 true_point = self.to_parent(*check_point)
121 #print '-x', self.view.scroll_x, self.view.scroll_y
122 elif true_point[0] < 0:
123 self.view.scroll_x -= self.x_scroll_margin
124 true_point = self.to_parent(*check_point)
125 #print '+x', self.view.scroll_x, self.view.scroll_y
126 elif true_point[1] >= self.view.size[1]:
127 self.view.scroll_y += self.y_scroll_margin
128 true_point = self.to_parent(*check_point)
129 #print '+y', self.view.scroll_x, self.view.scroll_y
130 elif true_point[1] < 0:
131 self.view.scroll_y -= self.y_scroll_margin
132 true_point = self.to_parent(*check_point)
133 #print '-y', self.view.scroll_x, self.view.scroll_y
134 #print true_point, self.view.size
136 def included(self, point, margin):
137 if point[0] < margin:
139 if point[0] >= self.view.size[0] - margin:
141 if point[1] < margin:
143 if point[1] >= self.view.size[1] - margin:
147 def draw_nemesis(self):
148 if not self.nemesis.on_board():
150 if self.nemesis_tile:
151 self.remove_widget(self.nemesis_tile)
152 sprite_pos = (self.nemesis.pos[0] * TILE_SIZE,
153 self.nemesis.pos[1] * TILE_SIZE)
154 self.nemesis_tile = Widget(size=(TILE_SIZE, TILE_SIZE),
156 with self.nemesis_tile.canvas:
158 Rectangle(pos=sprite_pos, size=self.nemesis_tile.size,
159 texture=self.nemesis.get_texture())
160 self.add_widget(self.nemesis_tile)
163 self.keyboard.unbind(on_key_down=self._on_key_down)
165 def _on_key_down(self, keyboard, keycode, text, modifiers):
167 letter = keycode[1].lower()
174 elif letter in RIGHT:
177 self.do_move(direction)
179 def do_move(self, direction):
180 if not self.level_obj:
182 self.player.move(direction, self.level_obj)
185 if not self.timer_set:
188 def timed_move(self, event):
189 if not self.level_obj:
191 self.nemesis.move(self.level_obj, self.check_caught)
196 def reset_timer(self):
197 self.timer_set = True
198 Clock.unschedule(self.timed_move)
199 Clock.schedule_once(self.timed_move, 0.5)
201 def check_caught(self):
202 return self.nemesis.pos == self.player.pos
204 def reset_level(self):
205 Clock.unschedule(self.timed_move)
206 self.timer_set = False
207 if self.nemesis_tile:
208 self.remove_widget(self.nemesis_tile)
209 self.nemesis.reset_pos()
211 self.level_obj.load_tiles()
212 self.player.pos = self.level_obj.enter_pos
213 self.remove_widget(self.player_tile)
214 self.view.scroll_x = 0
215 self.view.scroll_y = 0
222 def check_state(self):
223 if self.level_obj.at_exit(self.player.pos):
225 self.level_obj = self.level_list.advance_to_next_level()
226 if not self.reset_level():
227 self.app.game_over(True)
228 elif self.check_caught():
230 self.app.game_over(False)
232 def _calc_mouse_pos(self, pos):
233 pos = self.to_local(*pos)
234 return (int(pos[0] / TILE_SIZE), int(pos[1] / TILE_SIZE))
236 def on_touch_down(self, touch):
237 pos = self._calc_mouse_pos(touch.pos)
238 if pos == self.player.pos:
239 self.mouse_move = True
240 self.mouse_start = pos
242 def on_touch_up(self, touch):
243 self.mouse_move = False
245 def on_touch_move(self, touch):
247 pos = self._calc_mouse_pos(touch.pos)
248 if (pos[0] - self.mouse_start[0] != 0) or (
249 pos[1] - self.mouse_start[1] != 0):
250 direction = (pos[0] - self.mouse_start[0],
251 pos[1] - self.mouse_start[1])
252 self.do_move(direction)
253 self.mouse_start = pos
256 class Screen(Widget):
261 def __init__(self, app):
262 super(Screen, self).__init__()
263 self.image = load_image(self.BACKGROUND)
266 Rectangle(pos=(0, 0), size=(1026, 760),
267 texture=self.image.texture)
269 self.stop_button = Label(
270 text='[ref=quit][color=ff0066]Quit[/color][/ref]',
274 pos=((1026 - 200) / 2 - 100, 100))
275 self.stop_button.bind(on_ref_press=self.app.stop_app)
276 self.start_button = Label(
277 text="[ref=start][color=00ff66]%s[/color][/ref]" % self.START,
279 markup=True, size=(200, 40),
280 pos=((1026 - 200) / 2 + 100, 100))
281 self.start_button.bind(on_ref_press=self.app.start_game)
282 self.add_widget(self.stop_button)
283 self.add_widget(self.start_button)
286 class IntroScreen(Screen):
288 BACKGROUND = 'screens/intro_screen.png'
289 START = 'Start the Game'
292 class WonScreen(Screen):
294 BACKGROUND = 'screens/won.png'
295 START = 'Play again?'
298 class LostScreen(Screen):
300 BACKGROUND = 'screens/lost.png'
306 title = "Peter's thread snake"
309 super(GameApp, self).__init__()
310 self.levels = LevelList()
313 root = ScrollView(size_hint=(None, None))
317 from kivy.base import EventLoop
318 window = EventLoop.window
319 if platform() == 'android':
320 window.fullscreen = True
321 self.root.size = window.size
322 errors = self.levels.get_errors()
324 popup = Popup(title='Levels excluded',
325 content=Label(text='\n'.join(errors)),
330 def make_intro(self):
331 self.root.clear_widgets()
332 screen = IntroScreen(self)
333 self.root.add_widget(screen)
335 def stop_app(self, label, ref):
338 def start_game(self, label, ref):
340 game = GameWindow(self.levels, self)
342 self.root.clear_widgets()
343 self.root.add_widget(game)
344 # Ensure the player is visible
345 self.root.scroll_x = 0
346 self.root.scroll_y = 0
350 def game_over(self, won):
352 screen = WonScreen(self)
355 screen = LostScreen(self)
356 self.root.clear_widgets()
357 self.root.add_widget(screen)
361 """ Erdslangetjie, a maze game of eluding nemesis