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comparison gamelib/state.py @ 76:1a5fdc225939

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Add description rendering to scene rendering.
author Simon Cross <hodgestar+bzr@gmail.com>
date Mon, 23 Aug 2010 22:11:41 +0200
parents a62db6d10009
children bb7c8072f8c0
comparison
equal deleted inserted replaced
75:a62db6d10009 76:1a5fdc225939
1 """Utilities and base classes for dealing with scenes.""" 1 """Utilities and base classes for dealing with scenes."""
2 2
3 from albow.resource import get_image, get_sound 3 from albow.resource import get_image, get_sound
4 from albow.utils import frame_rect 4 from albow.utils import frame_rect
5 from albow.controls import Label
5 from pygame.locals import BLEND_ADD 6 from pygame.locals import BLEND_ADD
6 from pygame.rect import Rect 7 from pygame.rect import Rect
7 from pygame.color import Color 8 from pygame.color import Color
8 9
9 import constants 10 import constants
38 self.items = {} 39 self.items = {}
39 # list of item objects in inventory 40 # list of item objects in inventory
40 self.inventory = [] 41 self.inventory = []
41 # currently selected tool (item) 42 # currently selected tool (item)
42 self.tool = None 43 self.tool = None
43 # Result of the most recent action
44 self.msg = None
45 self.description = None
46 # current scene 44 # current scene
47 self.current_scene = None 45 self.current_scene = None
48 46
49 def add_scene(self, scene): 47 def add_scene(self, scene):
50 self.scenes[scene.name] = scene 48 self.scenes[scene.name] = scene
75 def interact(self, pos): 73 def interact(self, pos):
76 self.current_scene.interact(self.tool, pos) 74 self.current_scene.interact(self.tool, pos)
77 75
78 def mouse_move(self, pos): 76 def mouse_move(self, pos):
79 self.current_scene.mouse_move(self.tool, pos) 77 self.current_scene.mouse_move(self.tool, pos)
80
81 def get_message(self):
82 return self.msg
83
84 def clear_message(self):
85 self.msg = None
86
87 # FIXME: sort out how state.interact and description updating should work
88
89 def check_for_new_description(self, pos):
90 """Check if the current mouse position causes a new description"""
91 old_desc = self.description
92 self.description = self.current_scene.check_description(pos)
93 return old_desc != self.description
94
95 def get_description(self):
96 #
97 # DEPRECATED
98 #
99 return self.description
100
101 def message(self, msg):
102 self.msg = msg
103 78
104 79
105 class StatefulGizmo(object): 80 class StatefulGizmo(object):
106 81
107 # initial data (optional, defaults to none) 82 # initial data (optional, defaults to none)
139 self.state = state 114 self.state = state
140 # map of thing names -> Thing objects 115 # map of thing names -> Thing objects
141 self.things = {} 116 self.things = {}
142 self._background = get_image(self.FOLDER, self.BACKGROUND) 117 self._background = get_image(self.FOLDER, self.BACKGROUND)
143 self._current_thing = None 118 self._current_thing = None
119 self._current_description = None
144 120
145 def add_item(self, item): 121 def add_item(self, item):
146 self.state.add_item(item) 122 self.state.add_item(item)
147 123
148 def add_thing(self, thing): 124 def add_thing(self, thing):
150 thing.set_scene(self) 126 thing.set_scene(self)
151 127
152 def remove_thing(self, thing): 128 def remove_thing(self, thing):
153 del self.things[thing.name] 129 del self.things[thing.name]
154 130
131 def _make_description(self, text):
132 if text is None:
133 return None
134 label = Label(text)
135 label.margin = 5
136 label.border_width = 1
137 label.border_color = (0, 0, 0)
138 label.bg_color = (127, 127, 127)
139 label.fg_color = (0, 0, 0)
140 return label
141
142 def draw_description(self, surface):
143 if self._current_description is not None:
144 self._current_description.draw(surface)
145
155 def draw_background(self, surface): 146 def draw_background(self, surface):
156 surface.blit(self._background, (0, 0), None, BLEND_ADD) 147 surface.blit(self._background, (0, 0), None, BLEND_ADD)
157 148
158 def draw_things(self, surface): 149 def draw_things(self, surface):
159 for thing in self.things.itervalues(): 150 for thing in self.things.itervalues():
160 thing.draw(surface) 151 thing.draw(surface)
161 152
162 def draw(self, surface): 153 def draw(self, surface):
163 self.draw_background(surface) 154 self.draw_background(surface)
164 self.draw_things(surface) 155 self.draw_things(surface)
156 self.draw_description(surface)
165 157
166 def interact(self, item, pos): 158 def interact(self, item, pos):
167 """Interact with a particular position. 159 """Interact with a particular position.
168 160
169 Item may be an item in the list of items or None for the hand. 161 Item may be an item in the list of items or None for the hand.
182 if self._current_thing.rect.collidepoint(pos): 174 if self._current_thing.rect.collidepoint(pos):
183 return 175 return
184 else: 176 else:
185 self._current_thing.leave() 177 self._current_thing.leave()
186 self._current_thing = None 178 self._current_thing = None
179 self._current_description = None
187 for thing in self.things.itervalues(): 180 for thing in self.things.itervalues():
188 if thing.rect.collidepoint(pos): 181 if thing.rect.collidepoint(pos):
189 thing.enter(item) 182 thing.enter(item)
190 self._current_thing = thing 183 self._current_thing = thing
184 self._current_description = self._make_description(
185 thing.get_description())
191 break 186 break
192
193 def check_description(self, pos):
194 #
195 # DEPRECATED
196 #
197 desc = None
198 for thing in self.things.itervalues():
199 # Last thing in the list that matches wins
200 if Rect(thing.rect).collidepoint(pos):
201 desc = thing.get_description()
202 return desc
203 187
204 188
205 class Thing(StatefulGizmo): 189 class Thing(StatefulGizmo):
206 """Base class for things in a scene that you can interact with.""" 190 """Base class for things in a scene that you can interact with."""
207 191