Mercurial > nagslang
annotate nagslang/screens/area.py @ 100:96bdfadeb461
Cleaner direction key management.
author | Jeremy Thurgood <firxen@gmail.com> |
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date | Mon, 02 Sep 2013 12:01:25 +0200 |
parents | c177cdc41477 |
children | 0131e4606e1a |
rev | line source |
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18 | 1 """Display a game area.""" |
2 | |
20 | 3 import pygame |
21 | 4 import pymunk |
5 import pymunk.pygame_util | |
20 | 6 |
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7 from nagslang.events import ScreenChange |
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8 from nagslang.game_object import FloorSwitch |
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9 from nagslang.level import Level |
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10 from nagslang.protagonist import Protagonist |
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11 from nagslang.screens.base import Screen |
18 | 12 |
83 | 13 |
34 | 14 class ControlKeys(object): |
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15 direction_keys = { |
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16 (0, 1): set([pygame.locals.K_UP, pygame.locals.K_w]), |
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17 (0, -1): set([pygame.locals.K_DOWN, pygame.locals.K_s]), |
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18 (-1, 0): set([pygame.locals.K_LEFT, pygame.locals.K_a]), |
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19 (1, 0): set([pygame.locals.K_RIGHT, pygame.locals.K_d]), |
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20 } |
96bdfadeb461
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21 |
34 | 22 def __init__(self): |
23 self.keys_down = set() | |
24 | |
25 def key_down(self, key): | |
26 self.keys_down.add(key) | |
27 | |
28 def key_up(self, key): | |
29 self.keys_down.discard(key) | |
30 | |
31 def handle_event(self, ev): | |
32 if ev.type == pygame.locals.KEYDOWN: | |
33 self.key_down(ev.key) | |
34 elif ev.type == pygame.locals.KEYUP: | |
35 self.key_up(ev.key) | |
36 | |
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37 def get_direction(self): |
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38 dx, dy = 0, 0 |
96bdfadeb461
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parents:
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39 for (tx, ty), keys in self.direction_keys.iteritems(): |
96bdfadeb461
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parents:
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40 if self.keys_down & keys: |
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41 dx += tx |
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42 dy += ty |
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43 return (dx, dy) |
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44 |
34 | 45 |
18 | 46 class AreaScreen(Screen): |
21 | 47 |
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48 def setup(self): |
34 | 49 self.keys = ControlKeys() |
50
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50 self._level = Level(self.name) |
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51 self._level.load() |
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Give screens a name and a world.
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52 self.add_walls() |
4140780c21bc
Give screens a name and a world.
Simon Cross <hodgestar@gmail.com>
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53 self.add_protagonist() |
21 | 54 |
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Give screens a name and a world.
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55 def add_walls(self): |
21 | 56 self.walls = [] |
57 body = pymunk.Body() | |
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Point pymunk at a screen surface, not the display to make things saner
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58 body.position = (0, 0) |
53 | 59 walls = self._level.get_walls() |
60 for wall in walls: | |
61 corners = wall | |
62 corner = corners[-1] | |
63 for next_corner in corners: | |
64 wall = pymunk.Segment(body, corner, next_corner, 5) | |
65 wall.elasticity = 1.0 | |
66 self.walls.append(wall) | |
67 corner = next_corner | |
21 | 68 self.space.add(*self.walls) |
69 | |
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parents:
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70 def add_protagonist(self): |
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71 self.protagonist = Protagonist(self.space, (350, 300)) |
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72 self.toy_switch = FloorSwitch(self.space, (300, 400)) |
21 | 73 |
18 | 74 def handle_event(self, ev): |
20 | 75 if ev.type == pygame.locals.KEYDOWN: |
76 if ev.key == pygame.locals.K_ESCAPE: | |
77 ScreenChange.post('menu') | |
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Add WASD controls, switch to "c" for form change.
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78 if ev.key == pygame.locals.K_c: |
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Better movement and swap between werewolf and human form with 'w' (hodgestar, decoy).
Simon Cross <hodgestar@gmail.com>
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79 self.protagonist.toggle_form() |
34 | 80 self.keys.handle_event(ev) |
18 | 81 |
87 | 82 def _calc_viewport(self, level_surface, display_surface): |
83 level_size = level_surface.get_size() | |
84 display_size = display_surface.get_size() | |
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parents:
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85 protagnist_pos = self.protagonist.physicser.get_render_position( |
87 | 86 level_surface) |
87 x_wide = display_size[0] // 2 | |
88 y_wide = display_size[1] // 2 | |
89 if protagnist_pos[0] < x_wide: | |
90 x = 0 | |
91 elif protagnist_pos[0] > level_size[0] - x_wide: | |
92 x = level_size[0] - display_size[0] | |
93 else: | |
94 x = protagnist_pos[0] - x_wide | |
95 if protagnist_pos[1] < y_wide: | |
96 y = 0 | |
97 elif protagnist_pos[1] > level_size[1] - y_wide: | |
98 y = level_size[1] - display_size[1] | |
99 else: | |
100 y = protagnist_pos[1] - y_wide | |
101 return pygame.rect.Rect(x, y, display_size[0], display_size[1]) | |
102 | |
18 | 103 def render(self, surface): |
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parents:
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104 #surface.fill(pygame.color.Color(0, 0, 0)) |
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parents:
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105 background = self._level.get_background() |
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106 mysurface = background.copy() |
86 | 107 self.toy_switch.render(mysurface) |
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parents:
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108 self.protagonist.render(mysurface) |
87 | 109 render_rect = self._calc_viewport(mysurface, surface) |
110 surface.blit(mysurface, (0, 0), render_rect) | |
34 | 111 |
112 def tick_protagonist(self): | |
100
96bdfadeb461
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parents:
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113 dx, dy = self.keys.get_direction() |
47
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Better movement and swap between werewolf and human form with 'w' (hodgestar, decoy).
Simon Cross <hodgestar@gmail.com>
parents:
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114 self.protagonist.set_direction(dx, dy) |
34 | 115 |
116 def tick(self, seconds): | |
117 self.tick_protagonist() | |
118 super(AreaScreen, self).tick(seconds) |