Mercurial > nagslang

annotate nagslang/screens/area.py @ 340:eb24e74df4c3

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Less violent werewolf health colour.
author Jeremy Thurgood <firxen@gmail.com>
date Fri, 06 Sep 2013 12:48:03 +0200
parents 1d487646a4d4
children 11febdb72296
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1 """Display a game area."""
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2
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3 import pygame
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4 import pymunk
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5 import pymunk.pygame_util
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6
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7 from nagslang.constants import (
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8 COLLISION_TYPE_WALL, COLLISION_TYPE_PLAYER, CALLBACK_COLLIDERS,
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9 COLLISION_TYPE_FURNITURE, COLLISION_TYPE_WEREWOLF_ATTACK,
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10 CMD_TOGGLE_FORM, CMD_ATTACK, CMD_ACTION)
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11 from nagslang.enemies import DeadEnemy
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12 from nagslang.events import (
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13 ScreenChange, DoorEvent, FireEvent, EnemyDeathEvent, ClawEvent)
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14 from nagslang.level import Level
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15 from nagslang.screens.base import Screen
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16 from nagslang.game_object import Bullet, ClawAttack
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17 from nagslang.sound import sound
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18
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19
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20 class ControlKeys(object):
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21 direction_keys = {
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22 (0, 1): set([pygame.locals.K_UP, pygame.locals.K_w]),
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23 (0, -1): set([pygame.locals.K_DOWN, pygame.locals.K_s]),
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24 (-1, 0): set([pygame.locals.K_LEFT, pygame.locals.K_a]),
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25 (1, 0): set([pygame.locals.K_RIGHT, pygame.locals.K_d]),
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26 }
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27
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28 command_keys = {
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29 pygame.locals.K_c: CMD_TOGGLE_FORM,
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30 pygame.locals.K_z: CMD_ATTACK,
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31 pygame.locals.K_LCTRL: CMD_ATTACK,
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32 pygame.locals.K_SPACE: CMD_ACTION,
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33 }
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34
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35 def __init__(self):
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36 self.keys_down = set()
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37
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38 def key_down(self, key):
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39 self.keys_down.add(key)
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40
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41 def key_up(self, key):
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42 self.keys_down.discard(key)
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43
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44 def handle_event(self, ev):
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45 if ev.type == pygame.locals.KEYDOWN:
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46 self.key_down(ev.key)
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47 elif ev.type == pygame.locals.KEYUP:
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48 self.key_up(ev.key)
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49
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50 def get_direction(self):
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51 dx, dy = 0, 0
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52 for (tx, ty), keys in self.direction_keys.iteritems():
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53 if self.keys_down & keys:
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54 dx += tx
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55 dy += ty
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56 return (dx, dy)
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57
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58 def get_command_key(self, key):
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59 return self.command_keys.get(key, None)
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60
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61
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62 class Drawables(object):
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63 def __init__(self):
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64 self._drawables = {}
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65
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66 def add(self, drawable):
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67 self._drawables.setdefault(drawable.zorder, []).append(drawable)
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68
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69 def remove(self, drawable):
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70 self._drawables[drawable.zorder].remove(drawable)
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71
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72 def get_drawables(self):
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73 for zorder in sorted(self._drawables):
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74 for drawable in self._drawables[zorder]:
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75 yield drawable
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76
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77 __iter__ = get_drawables
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78
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79
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80 class AreaScreen(Screen):
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81
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82 def setup(self):
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83 self._disable_render = False # Avoid redrawing on scene changes
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84 self.keys = ControlKeys()
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85 self._level = Level(self.name, self.world)
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86 self._level.load(self.space)
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87 self._drawables = Drawables()
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88 self.add_walls()
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89 self._add_collision_handlers()
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90 self.add_protagonist()
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91 self.add_game_objects()
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92 sound.play_music("POL-cyber-factory-short.ogg")
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93
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94 def teardown(self):
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95 sound.stop()
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96
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97 @classmethod
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98 def list_areas(self):
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99 return Level.list_levels()
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100
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101 def _player_collision_pre_solve_handler(self, space, arbiter):
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102 gobj = arbiter.shapes[1].physicser.game_object
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103 result = gobj.collide_with_protagonist(self.protagonist)
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104 # The collision handler must return `True` or `False`. We don't want to
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105 # accidentally reject collisions from handlers that return `None`, so
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106 # we explicitly check for `False` and treate everything else as `True`.
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107 return result is not False
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108
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109 def _claw_attack_collision_pre_solve_handler(self, space, arbiter):
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110 claw = arbiter.shapes[0].physicser.game_object
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111 gobj = arbiter.shapes[1].physicser.game_object
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112 result = gobj.collide_with_claw_attack(claw)
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113 return result is not False
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114
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115 def _furniture_collision_pre_solve_handler(self, space, arbiter):
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116 furniture = arbiter.shapes[0].physicser.game_object
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117 gobj = arbiter.shapes[1].physicser.game_object
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118 result = gobj.collide_with_furniture(furniture)
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119 return result is not False
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120
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121 def _add_collision_handlers(self):
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122 for collision_type in CALLBACK_COLLIDERS:
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123 self.space.add_collision_handler(
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124 COLLISION_TYPE_PLAYER, collision_type,
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125 pre_solve=self._player_collision_pre_solve_handler)
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126 self.space.add_collision_handler(
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127 COLLISION_TYPE_FURNITURE, collision_type,
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128 pre_solve=self._furniture_collision_pre_solve_handler)
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129 self.space.add_collision_handler(
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130 COLLISION_TYPE_WEREWOLF_ATTACK, collision_type,
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131 pre_solve=self._claw_attack_collision_pre_solve_handler)
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132
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133 def add_walls(self):
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134 self.walls = []
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135 body = pymunk.Body()
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136 body.position = (0, 0)
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137 walls = self._level.get_walls()
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138 for wall in walls:
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139 if len(wall) < 2:
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140 # Don't try to add a useless wall
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141 continue
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142 corners = wall
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143 corner = corners[-1]
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144 for next_corner in corners:
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145 wall = pymunk.Segment(body, corner, next_corner, 5)
301
893f148a2f13 Walls need WALL_COLLISION_TYPE.
Jeremy Thurgood <firxen@gmail.com>
parents: 293
diff changeset
146 wall.collision_type = COLLISION_TYPE_WALL
53
39d346467052 Draw all the walls.
Simon Cross <hodgestar@gmail.com>
parents: 52
diff changeset
147 wall.elasticity = 1.0
39d346467052 Draw all the walls.
Simon Cross <hodgestar@gmail.com>
parents: 52
diff changeset
148 self.walls.append(wall)
39d346467052 Draw all the walls.
Simon Cross <hodgestar@gmail.com>
parents: 52
diff changeset
149 corner = next_corner
21
1b048d2a8411 Fake area.
Simon Cross <hodgestar@gmail.com>
parents: 20
diff changeset
150 self.space.add(*self.walls)
1b048d2a8411 Fake area.
Simon Cross <hodgestar@gmail.com>
parents: 20
diff changeset
151
145
0c49627920eb Load game objects from level.
Jeremy Thurgood <firxen@gmail.com>
parents: 143
diff changeset
152 def add_game_objects(self):
191
e080fcd07fa9 Overlay notes
Stefano Rivera <stefano@rivera.za.net>
parents: 190
diff changeset
153 for drawable in self._level.drawables:
145
0c49627920eb Load game objects from level.
Jeremy Thurgood <firxen@gmail.com>
parents: 143
diff changeset
154 self._drawables.add(drawable)
0c49627920eb Load game objects from level.
Jeremy Thurgood <firxen@gmail.com>
parents: 143
diff changeset
155
37
4140780c21bc Give screens a name and a world.
Simon Cross <hodgestar@gmail.com>
parents: 35
diff changeset
156 def add_protagonist(self):
276
3153196517fc Move protagonist to the world
Neil Muller <drnlmuller@gmail.com>
parents: 272
diff changeset
157 self.protagonist = self.world.protagonist
3153196517fc Move protagonist to the world
Neil Muller <drnlmuller@gmail.com>
parents: 272
diff changeset
158 self.protagonist.change_space(self.space)
107
b90d01e4d9d4 Layered drawing.
Jeremy Thurgood <firxen@gmail.com>
parents: 106
diff changeset
159 self._drawables.add(self.protagonist)
21
1b048d2a8411 Fake area.
Simon Cross <hodgestar@gmail.com>
parents: 20
diff changeset
160
18
9ecb1d222ee0 Screens.
Simon Cross <hodgestar@gmail.com>
parents:
diff changeset
161 def handle_event(self, ev):
20
347667c941de Hook up area.
Simon Cross <hodgestar@gmail.com>
parents: 18
diff changeset
162 if ev.type == pygame.locals.KEYDOWN:
347667c941de Hook up area.
Simon Cross <hodgestar@gmail.com>
parents: 18
diff changeset
163 if ev.key == pygame.locals.K_ESCAPE:
347667c941de Hook up area.
Simon Cross <hodgestar@gmail.com>
parents: 18
diff changeset
164 ScreenChange.post('menu')
336
1d487646a4d4 Better key handling, form change delay.
Jeremy Thurgood <firxen@gmail.com>
parents: 333
diff changeset
165 cmd_key = self.keys.get_command_key(ev.key)
1d487646a4d4 Better key handling, form change delay.
Jeremy Thurgood <firxen@gmail.com>
parents: 333
diff changeset
166 if cmd_key is not None:
1d487646a4d4 Better key handling, form change delay.
Jeremy Thurgood <firxen@gmail.com>
parents: 333
diff changeset
167 self.protagonist.handle_keypress(cmd_key)
180
026297a03963 Add DoorEvent and tweak ScreenChange to keep more state when the player goes through a door
Neil Muller <drnlmuller@gmail.com>
parents: 147
diff changeset
168 elif DoorEvent.matches(ev):
026297a03963 Add DoorEvent and tweak ScreenChange to keep more state when the player goes through a door
Neil Muller <drnlmuller@gmail.com>
parents: 147
diff changeset
169 self.protagonist.set_position(ev.dest_pos)
026297a03963 Add DoorEvent and tweak ScreenChange to keep more state when the player goes through a door
Neil Muller <drnlmuller@gmail.com>
parents: 147
diff changeset
170 if ev.destination != self.name:
026297a03963 Add DoorEvent and tweak ScreenChange to keep more state when the player goes through a door
Neil Muller <drnlmuller@gmail.com>
parents: 147
diff changeset
171 # Go to anther screen
190
97627a999042 Don't render the old scene with the protagnist's new position during scene changes
Neil Muller <drnlmuller@gmail.com>
parents: 188
diff changeset
172 self._disable_render = True
238
28d906fc2ab1 Add a world object to collect some stats
Neil Muller <drnlmuller@gmail.com>
parents: 211
diff changeset
173 self.world.rooms += 1
276
3153196517fc Move protagonist to the world
Neil Muller <drnlmuller@gmail.com>
parents: 272
diff changeset
174 ScreenChange.post(ev.destination)
190
97627a999042 Don't render the old scene with the protagnist's new position during scene changes
Neil Muller <drnlmuller@gmail.com>
parents: 188
diff changeset
175 return
180
026297a03963 Add DoorEvent and tweak ScreenChange to keep more state when the player goes through a door
Neil Muller <drnlmuller@gmail.com>
parents: 147
diff changeset
176 # else we're teleporting within the screen, and just the
026297a03963 Add DoorEvent and tweak ScreenChange to keep more state when the player goes through a door
Neil Muller <drnlmuller@gmail.com>
parents: 147
diff changeset
177 # position change is enough
261
db7c8e74efb4 (really rubbish) bullets
Stefano Rivera <stefano@rivera.za.net>
parents: 258
diff changeset
178 elif FireEvent.matches(ev):
305
ce11e1cae0ed Enemies now die
Stefano Rivera <stefano@rivera.za.net>
parents: 303
diff changeset
179 bullet = Bullet(self.space, ev.source, ev.impulse, ev.damage,
293
47226c661ae2 Bullets that mostly die when they hit things
Stefano Rivera <stefano@rivera.za.net>
parents: 283
diff changeset
180 ev.source_collision_type)
261
db7c8e74efb4 (really rubbish) bullets
Stefano Rivera <stefano@rivera.za.net>
parents: 258
diff changeset
181 self._drawables.add(bullet)
308
3dee86b6c216 Enemies leave corpses
Stefano Rivera <stefano@rivera.za.net>
parents: 307
diff changeset
182 elif EnemyDeathEvent.matches(ev):
3dee86b6c216 Enemies leave corpses
Stefano Rivera <stefano@rivera.za.net>
parents: 307
diff changeset
183 self.world.kills += 1
3dee86b6c216 Enemies leave corpses
Stefano Rivera <stefano@rivera.za.net>
parents: 307
diff changeset
184 dead_enemy = DeadEnemy(self.space, self.world, ev.position,
3dee86b6c216 Enemies leave corpses
Stefano Rivera <stefano@rivera.za.net>
parents: 307
diff changeset
185 ev.enemy_type)
3dee86b6c216 Enemies leave corpses
Stefano Rivera <stefano@rivera.za.net>
parents: 307
diff changeset
186 self._drawables.add(dead_enemy)
312
72aca01c87ed Basic claw attack, stealing liberally from other people's code! ;)
David Sharpe
parents: 308
diff changeset
187 elif ClawEvent.matches(ev):
72aca01c87ed Basic claw attack, stealing liberally from other people's code! ;)
David Sharpe
parents: 308
diff changeset
188 claw_attack = ClawAttack(self.space, ev.source, ev.vector,
333
3dd32686dbc3 Better wolf claw attack.
Jeremy Thurgood <firxen@gmail.com>
parents: 321
diff changeset
189 ev.damage)
312
72aca01c87ed Basic claw attack, stealing liberally from other people's code! ;)
David Sharpe
parents: 308
diff changeset
190 self._drawables.add(claw_attack)
34
2995723e8ccf Move and hold.
Simon Cross <hodgestar@gmail.com>
parents: 27
diff changeset
191 self.keys.handle_event(ev)
18
9ecb1d222ee0 Screens.
Simon Cross <hodgestar@gmail.com>
parents:
diff changeset
192
87
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
193 def _calc_viewport(self, level_surface, display_surface):
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
194 level_size = level_surface.get_size()
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
195 display_size = display_surface.get_size()
93
d6a49f0c1e6e Rectangular human protagonist shape, refactored physicsers.
Jeremy Thurgood <firxen@gmail.com>
parents: 92
diff changeset
196 protagnist_pos = self.protagonist.physicser.get_render_position(
127
fe1f0bb4ecf0 Handle case of display larger than the level better
Neil Muller <drnlmuller@gmail.com>
parents: 107
diff changeset
197 level_surface)
87
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
198 x_wide = display_size[0] // 2
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
199 y_wide = display_size[1] // 2
127
fe1f0bb4ecf0 Handle case of display larger than the level better
Neil Muller <drnlmuller@gmail.com>
parents: 107
diff changeset
200 if display_size[0] > level_size[0]:
fe1f0bb4ecf0 Handle case of display larger than the level better
Neil Muller <drnlmuller@gmail.com>
parents: 107
diff changeset
201 x = -(display_size[0] - level_size[0]) // 2
fe1f0bb4ecf0 Handle case of display larger than the level better
Neil Muller <drnlmuller@gmail.com>
parents: 107
diff changeset
202 elif protagnist_pos[0] < x_wide:
87
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
203 x = 0
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
204 elif protagnist_pos[0] > level_size[0] - x_wide:
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
205 x = level_size[0] - display_size[0]
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
206 else:
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
207 x = protagnist_pos[0] - x_wide
127
fe1f0bb4ecf0 Handle case of display larger than the level better
Neil Muller <drnlmuller@gmail.com>
parents: 107
diff changeset
208 if display_size[1] > level_size[1]:
fe1f0bb4ecf0 Handle case of display larger than the level better
Neil Muller <drnlmuller@gmail.com>
parents: 107
diff changeset
209 y = -(display_size[1] - level_size[1]) // 2
fe1f0bb4ecf0 Handle case of display larger than the level better
Neil Muller <drnlmuller@gmail.com>
parents: 107
diff changeset
210 elif protagnist_pos[1] < y_wide:
87
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
211 y = 0
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
212 elif protagnist_pos[1] > level_size[1] - y_wide:
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
213 y = level_size[1] - display_size[1]
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
214 else:
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
215 y = protagnist_pos[1] - y_wide
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
216 return pygame.rect.Rect(x, y, display_size[0], display_size[1])
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
217
18
9ecb1d222ee0 Screens.
Simon Cross <hodgestar@gmail.com>
parents:
diff changeset
218 def render(self, surface):
190
97627a999042 Don't render the old scene with the protagnist's new position during scene changes
Neil Muller <drnlmuller@gmail.com>
parents: 188
diff changeset
219 if self._disable_render:
97627a999042 Don't render the old scene with the protagnist's new position during scene changes
Neil Muller <drnlmuller@gmail.com>
parents: 188
diff changeset
220 return
50
94d47bfcc7bb Approximate levels and walls
Neil Muller <drnlmuller@gmail.com>
parents: 47
diff changeset
221 background = self._level.get_background()
84
ef8e799477e0 Point pymunk at a screen surface, not the display to make things saner
Neil Muller <drnlmuller@gmail.com>
parents: 83
diff changeset
222 mysurface = background.copy()
105
0131e4606e1a List of drawables in area.
Jeremy Thurgood <firxen@gmail.com>
parents: 100
diff changeset
223 for drawable in self._drawables:
0131e4606e1a List of drawables in area.
Jeremy Thurgood <firxen@gmail.com>
parents: 100
diff changeset
224 drawable.render(mysurface)
87
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
225 render_rect = self._calc_viewport(mysurface, surface)
75d8ad4bf9b5 Hack in viewport
Neil Muller <drnlmuller@gmail.com>
parents: 86
diff changeset
226 surface.blit(mysurface, (0, 0), render_rect)
191
e080fcd07fa9 Overlay notes
Stefano Rivera <stefano@rivera.za.net>
parents: 190
diff changeset
227 for overlay in self._level.overlay_drawables:
e080fcd07fa9 Overlay notes
Stefano Rivera <stefano@rivera.za.net>
parents: 190
diff changeset
228 if overlay.is_visible():
211
434b5a3aaaff Pass display offset to overlays for when the display is larger than the level
Neil Muller <drnlmuller@gmail.com>
parents: 192
diff changeset
229 overlay.render(surface, render_rect.topleft)
243
46707efbb3a5 Added health bar to main screen.
David Sharpe
parents: 211
diff changeset
230 self.render_health_bar(surface)
34
2995723e8ccf Move and hold.
Simon Cross <hodgestar@gmail.com>
parents: 27
diff changeset
231
2995723e8ccf Move and hold.
Simon Cross <hodgestar@gmail.com>
parents: 27
diff changeset
232 def tick_protagonist(self):
100
96bdfadeb461 Cleaner direction key management.
Jeremy Thurgood <firxen@gmail.com>
parents: 97
diff changeset
233 dx, dy = self.keys.get_direction()
47
82036437ebf6 Better movement and swap between werewolf and human form with 'w' (hodgestar, decoy).
Simon Cross <hodgestar@gmail.com>
parents: 37
diff changeset
234 self.protagonist.set_direction(dx, dy)
34
2995723e8ccf Move and hold.
Simon Cross <hodgestar@gmail.com>
parents: 27
diff changeset
235
2995723e8ccf Move and hold.
Simon Cross <hodgestar@gmail.com>
parents: 27
diff changeset
236 def tick(self, seconds):
303
24bd56bd17bd Fix timing issues
Neil Muller <drnlmuller@gmail.com>
parents: 301
diff changeset
237 super(AreaScreen, self).tick(seconds)
34
2995723e8ccf Move and hold.
Simon Cross <hodgestar@gmail.com>
parents: 27
diff changeset
238 self.tick_protagonist()
143
deac6a4008e7 Hook up protagnist animations
Neil Muller <drnlmuller@gmail.com>
parents: 140
diff changeset
239 for drawable in self._drawables:
307
c2bbb1e70d6f Rename animate to update and pass seconds, for future fun
Neil Muller <drnlmuller@gmail.com>
parents: 305
diff changeset
240 drawable.update(seconds)
293
47226c661ae2 Bullets that mostly die when they hit things
Stefano Rivera <stefano@rivera.za.net>
parents: 283
diff changeset
241 if drawable.remove:
47226c661ae2 Bullets that mostly die when they hit things
Stefano Rivera <stefano@rivera.za.net>
parents: 283
diff changeset
242 self._drawables.remove(drawable)
243
46707efbb3a5 Added health bar to main screen.
David Sharpe
parents: 211
diff changeset
243
258
083053422a84 Added collision damage with enemies.
David Sharpe
parents: 257
diff changeset
244 def render_health_bar(self, surface, damage_experienced=None):
243
46707efbb3a5 Added health bar to main screen.
David Sharpe
parents: 211
diff changeset
245 rect = pygame.Rect(50, 500, 110, 50)
258
083053422a84 Added collision damage with enemies.
David Sharpe
parents: 257
diff changeset
246 if damage_experienced:
083053422a84 Added collision damage with enemies.
David Sharpe
parents: 257
diff changeset
247 health_box_colour = pygame.color.THECOLORS['red']
083053422a84 Added collision damage with enemies.
David Sharpe
parents: 257
diff changeset
248 else:
083053422a84 Added collision damage with enemies.
David Sharpe
parents: 257
diff changeset
249 health_box_colour = pygame.color.THECOLORS['white']
333
3dd32686dbc3 Better wolf claw attack.
Jeremy Thurgood <firxen@gmail.com>
parents: 321
diff changeset
250 pygame.draw.rect(surface, health_box_colour, rect, 0)
246
281c54cefe08 Added health to protagonist.
David Sharpe
parents: 244
diff changeset
251 if self.protagonist.in_human_form():
243
46707efbb3a5 Added health bar to main screen.
David Sharpe
parents: 211
diff changeset
252 health_colour = pygame.color.THECOLORS['red']
46707efbb3a5 Added health bar to main screen.
David Sharpe
parents: 211
diff changeset
253 else:
340
eb24e74df4c3 Less violent werewolf health colour.
Jeremy Thurgood <firxen@gmail.com>
parents: 336
diff changeset
254 health_colour = pygame.color.THECOLORS['violetred3']
246
281c54cefe08 Added health to protagonist.
David Sharpe
parents: 244
diff changeset
255 rect = pygame.Rect(55, 505, self.protagonist.get_health_level(), 40)
333
3dd32686dbc3 Better wolf claw attack.
Jeremy Thurgood <firxen@gmail.com>
parents: 321
diff changeset
256 pygame.draw.rect(surface, health_colour, rect, 0)