skaapsteker: skaapsteker/engine.py annotate

annotate skaapsteker/engine.py @ 250:8d7edd77bfbf

Start hooking up NPC interactions.

author	Simon Cross <hodgestar@gmail.com>
date	Thu, 07 Apr 2011 23:57:22 +0200
parents	30ae3c681507
children	de60329cfc9f

rev	line source
11 249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	1 """Top-level engine for switching scenes."""
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	2
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	3 import pygame.display
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	4 import pygame.time
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	5 import pygame.event
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	6 from pygame.locals import QUIT, USEREVENT
11 249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	7
127 e1dd3b785269 Initial game state stuff. Jeremy Thurgood <firxen@gmail.com> parents: 126 diff changeset	8
11 249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	9 class Engine(object):
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	10
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	11 def __init__(self):
250 8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	12 # avoid circular imports
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	13 from .gamestate import GameState
11 249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	14 self._framerate = 60
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	15 self._current_scene = None
123 592477d8b09b Add fps to game Neil Muller <drnlmuller@gmail.com> parents: 79 diff changeset	16 self._fpss = [self._framerate] * 100
592477d8b09b Add fps to game Neil Muller <drnlmuller@gmail.com> parents: 79 diff changeset	17 self._cur_frame = 0
189 9d08f99b5ddf Add npcs to gamestate. Update gamestate. Pass world around a bit. Some other stuff. Simon Cross <hodgestar@gmail.com> parents: 165 diff changeset	18 self.game_state = GameState("game.json")
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	19
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	20 def change_scene(self, next_scene):
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	21 if self._current_scene is not None:
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	22 self._current_scene.leave()
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	23 self._current_scene = next_scene
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	24 self._current_scene.enter()
11 249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	25
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	26 def run(self):
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	27 """Run the game loop dispatching events as necessary."""
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	28 assert self._current_scene is not None
11 249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	29 clock = pygame.time.Clock()
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	30 surface = pygame.display.get_surface()
11 249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	31 while True:
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	32 events = pygame.event.get()
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	33 for ev in events:
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	34 if ev.type is QUIT:
249814efa91b Create game engine. Enable quitting. Simon Cross <hodgestar@gmail.com> parents: diff changeset	35 return
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	36 if ChangeScene.matches(ev):
249 30ae3c681507 Doors and stuff. Jeremy Thurgood <firxen@gmail.com> parents: 248 diff changeset	37 next_scene = ev.next_scene
30ae3c681507 Doors and stuff. Jeremy Thurgood <firxen@gmail.com> parents: 248 diff changeset	38 if not isinstance(next_scene, Scene):
30ae3c681507 Doors and stuff. Jeremy Thurgood <firxen@gmail.com> parents: 248 diff changeset	39 next_scene = next_scene[0](self.game_state, *(next_scene[1:]))
30ae3c681507 Doors and stuff. Jeremy Thurgood <firxen@gmail.com> parents: 248 diff changeset	40 self.change_scene(next_scene)
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	41 break
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	42 self._current_scene.dispatch(ev)
123 592477d8b09b Add fps to game Neil Muller <drnlmuller@gmail.com> parents: 79 diff changeset	43 self._current_scene.draw(surface, self)
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	44 pygame.display.flip()
126 9cae256b91d7 Fix bug in FPS calculation. Phew -- we're still fast. Simon Cross <hodgestar@gmail.com> parents: 123 diff changeset	45 self._fpss[self._cur_frame] = 1000.0 / clock.tick(self._framerate)
123 592477d8b09b Add fps to game Neil Muller <drnlmuller@gmail.com> parents: 79 diff changeset	46 self._cur_frame = self._cur_frame + 1 if self._cur_frame < 99 else 0
592477d8b09b Add fps to game Neil Muller <drnlmuller@gmail.com> parents: 79 diff changeset	47
592477d8b09b Add fps to game Neil Muller <drnlmuller@gmail.com> parents: 79 diff changeset	48 def get_fps(self):
592477d8b09b Add fps to game Neil Muller <drnlmuller@gmail.com> parents: 79 diff changeset	49 return sum(self._fpss) / 100
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	50
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	51
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	52 class Scene(object):
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	53
127 e1dd3b785269 Initial game state stuff. Jeremy Thurgood <firxen@gmail.com> parents: 126 diff changeset	54 def __init__(self, game_state):
79 fe8652a060df Simple menu screen and TextChoice widget Stefano Rivera <stefano@rivera.za.net> parents: 14 diff changeset	55 self.widgets = []
165 8d45715c587d Rename ._game_state to game_state for consistency with engine and since everyone and their dog has access to it. :) Simon Cross <hodgestar@gmail.com> parents: 133 diff changeset	56 self.game_state = game_state
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	57
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	58 def post(self, ev):
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	59 """Post an event to pygame's event loop."""
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	60 pygame.event.post(ev)
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	61
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	62 def enter(self):
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	63 """Enter the scene."""
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	64 pass
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	65
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	66 def leave(self):
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	67 """Exit the scene."""
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	68 pass
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	69
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	70 def dispatch(self, ev):
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	71 """Dispatch an event."""
79 fe8652a060df Simple menu screen and TextChoice widget Stefano Rivera <stefano@rivera.za.net> parents: 14 diff changeset	72 for widget in self.widgets:
fe8652a060df Simple menu screen and TextChoice widget Stefano Rivera <stefano@rivera.za.net> parents: 14 diff changeset	73 widget.dispatch(ev)
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	74
133 aca8b7456c72 Pass engine to all Scene draw() methods Stefano Rivera <stefano@rivera.za.net> parents: 127 diff changeset	75 def draw(self, surface, engine):
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	76 """Update the scene surface."""
79 fe8652a060df Simple menu screen and TextChoice widget Stefano Rivera <stefano@rivera.za.net> parents: 14 diff changeset	77 for widget in self.widgets:
fe8652a060df Simple menu screen and TextChoice widget Stefano Rivera <stefano@rivera.za.net> parents: 14 diff changeset	78 widget.draw(surface)
14 fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	79
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	80
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	81 class UserEvent(object):
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	82
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	83 utype = "UNKNOWN"
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	84
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	85 @classmethod
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	86 def post(cls, **kws):
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	87 ev = pygame.event.Event(USEREVENT, utype=cls.utype, **kws)
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	88 pygame.event.post(ev)
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	89
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	90 @classmethod
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	91 def matches(cls, ev):
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	92 return ev.type is USEREVENT and ev.utype == cls.utype
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	93
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	94 class ChangeScene(UserEvent):
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	95
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	96 utype = "CHANGE_SCENE"
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	97
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	98 @classmethod
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	99 def post(cls, next_scene):
fb1bd081cc86 Add scene changing. Simon Cross <hodgestar@gmail.com> parents: 11 diff changeset	100 super(ChangeScene, cls).post(next_scene=next_scene)
244 5bbf90e6a94b Add minimal support for player death Neil Muller <drnlmuller@gmail.com> parents: 189 diff changeset	101
5bbf90e6a94b Add minimal support for player death Neil Muller <drnlmuller@gmail.com> parents: 189 diff changeset	102 class PlayerDied(UserEvent):
5bbf90e6a94b Add minimal support for player death Neil Muller <drnlmuller@gmail.com> parents: 189 diff changeset	103
5bbf90e6a94b Add minimal support for player death Neil Muller <drnlmuller@gmail.com> parents: 189 diff changeset	104 utype = "PLAYER_DIED"
5bbf90e6a94b Add minimal support for player death Neil Muller <drnlmuller@gmail.com> parents: 189 diff changeset	105
5bbf90e6a94b Add minimal support for player death Neil Muller <drnlmuller@gmail.com> parents: 189 diff changeset	106 @classmethod
5bbf90e6a94b Add minimal support for player death Neil Muller <drnlmuller@gmail.com> parents: 189 diff changeset	107 def post(cls):
5bbf90e6a94b Add minimal support for player death Neil Muller <drnlmuller@gmail.com> parents: 189 diff changeset	108 super(PlayerDied, cls).post()
250 8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	109
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	110 class OpenDialog(UserEvent):
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	111
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	112 utype = "OPEN_DIALOG"
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	113
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	114 @classmethod
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	115 def post(cls, npc):
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	116 # request to open dialog box for given NPC sprite
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	117 # will do nothing if the NPC's current state has
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	118 # no text
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	119 super(OpenDialog, cls).post(npc=npc)
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	120
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	121 class CloseDialog(UserEvent):
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	122
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	123 utype = "CLOSE_DIALOG"
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	124
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	125 @classmethod
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	126 def post(cls, npc):
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	127 # close dialog box for given NPC sprite
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	128 # will do nothing if the sprite has no dialog open
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	129 super(CloseDialog, cls).post(npc=npc)
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	130
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	131 class NpcEvent(UserEvent): # TODO: Needed?
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	132
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	133 utype = "NPC_EVENT"
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	134
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	135 @classmethod
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	136 def post(cls, npc, ev):
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	137 """npc is an NPC sprite.
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	138 ev is a DsmEvent for that sprite.
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	139 """
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	140 super(NpcEvent, cls).post(npc=npc, ev=ev)
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	141
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	142 class GlobalNpcEvent(UserEvent): # TODO: Needed?
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	143
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	144 utype = "GLOBAL_NPC_EVENT"
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	145
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	146 @classmethod
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	147 def post(cls, ev):
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	148 """Send a DsmEvent event to all NPCs.
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	149 """
8d7edd77bfbf Start hooking up NPC interactions. Simon Cross <hodgestar@gmail.com> parents: 249 diff changeset	150 super(GlobalNpcEvent, cls).post(ev=ev)

Mercurial > skaapsteker

annotate skaapsteker/engine.py @ 250:8d7edd77bfbf