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comparison gamelib/sprite_cursor.py @ 267:9cc7bc5cd10c

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Refactor sprite cursor a bit to make sub-classing easier. Add (unused) SmallSpriteCursor sub-class. Remove unnecessary pygame.font import.
author Simon Cross <hodgestar@gmail.com>
date Sat, 05 Sep 2009 14:02:04 +0000
parents 0bd214cf9018
children
comparison
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266:390ef4387e05 267:9cc7bc5cd10c
2 2
3 Currently mostly used when placing buildings. 3 Currently mostly used when placing buildings.
4 """ 4 """
5 5
6 import pygame 6 import pygame
7 import pygame.font
8 from pygame.locals import SRCALPHA 7 from pygame.locals import SRCALPHA
9 8
10 import imagecache 9 import imagecache
11 import constants 10 import constants
12 from pgu.vid import Sprite 11 from pgu.vid import Sprite
14 # ignore os.popen3 warning generated by pygame.font.SysFont 13 # ignore os.popen3 warning generated by pygame.font.SysFont
15 import warnings 14 import warnings
16 warnings.filterwarnings("ignore", "os.popen3 is deprecated.") 15 warnings.filterwarnings("ignore", "os.popen3 is deprecated.")
17 16
18 class SpriteCursor(Sprite): 17 class SpriteCursor(Sprite):
19 """A Sprite used as an on-board cursor.""" 18 """A Sprite used as an on-board cursor.
19 """
20 20
21 def __init__(self, image_name, tv, cost=None): 21 def __init__(self, image_name, tv, cost=None):
22 self._font = pygame.font.SysFont('Vera', 20, bold=True) 22 self._font = pygame.font.SysFont('Vera', 20, bold=True)
23 image = imagecache.load_image(image_name, ["sprite_cursor"]) 23 image = imagecache.load_image(image_name, ["sprite_cursor"])
24 24
25 if cost is not None: 25 if cost is not None:
26 image = image.copy() 26 image = self._apply_text(image, str(cost))
27 text = self._font.render(str(cost), True, constants.FG_COLOR)
28 w, h = image.get_size()
29 x, y = text.get_size()
30 image.blit(text, (w - x, h - y))
31 27
32 # Create the sprite somewhere far off screen 28 # Create the sprite somewhere far off screen
33 Sprite.__init__(self, image, (-1000, -1000)) 29 Sprite.__init__(self, image, (-1000, -1000))
34 self._tv = tv 30 self._tv = tv
35 31
32 def _apply_text(self, image, stext):
33 """Apply the text to the image."""
34 image = image.copy()
35 text = self._font.render(stext, True, constants.FG_COLOR)
36 w, h = image.get_size()
37 x, y = text.get_size()
38 image.blit(text, (w - x, h - y))
39 return image
40
36 def set_pos(self, tile_pos): 41 def set_pos(self, tile_pos):
37 """Set the cursor position on the gameboard.""" 42 """Set the cursor position on the gameboard."""
38 self.rect.x, self.rect.y = self._tv.tile_to_view(tile_pos) 43 self.rect.x, self.rect.y = self._tv.tile_to_view(tile_pos)
44
45 class SmallSpriteCursor(SpriteCursor):
46 """A sprite cursor for use with images too small for the associated text."""
47
48 def _apply_text(self, image, stext):
49 text = self._font.render(stext, True, constants.FG_COLOR)
50 w, h = image.get_size()
51 x, y = text.get_size()
52
53 new_w, new_h = w + x, max(h, y)
54
55 new_image = pygame.Surface((new_w, new_h), SRCALPHA)
56 new_image.blit(image, (0, 0))
57 new_image.blit(text, (w, new_h - y))
58 return new_image