def on_mapbuilt(self, event):
""" Build the bg from the map cells, and blit it.
The pixel width and height of map cells comes from
the window's dimensions and the map's visibility radius.
Called only once at the beginning, when model.map has been built.
"""
worldmap = event.worldmap
self.cellsprs = dict() # maps model.Cell to view.CellSprite
# determine width and height of cell spr from map visibility
r = worldmap.visibility_radius
self.visib_rad = r
diam = 2 * r + 1
self.visib_diam = diam
height = self.win_size[1]
celsize = int(height / diam)
self.cspr_size = celsize
# Build world screen_bg to be scrolled when the avatar moves
# so that world_bg can be scrolled.
# Padding of visib_diam so that the screen bg can subsurface(world_bg)
v_rad = self.visib_rad
w_w, w_h = worldmap.width, worldmap.height
w_surf_w = celsize * (w_w + 2 * v_rad)
w_surf_h = celsize * (w_h + 2 * v_rad)
worldbg = pygame.Surface((w_surf_w, w_surf_h))
worldbg.fill(config_get_nonwalkable_color())
for i in range(w_w):
for j in range(w_h):
# don't forget the visib_rad of padding
cspr_left = (v_rad + i) * celsize
cspr_top = (v_rad + j) * celsize
cellrect = pygame.Rect(cspr_left, cspr_top, celsize, celsize)
cell = worldmap.get_cell(i, j)
cellspr = CellSprite(cell, cellrect)
self.cellsprs[cell] = cellspr
# blit the cell to world bg
worldbg.blit(cellspr.image, cellspr.rect)
worldbg = worldbg.convert()
self.world_bg = worldbg
# Center screen screen_bg on entrance cell, and blit
eleft, etop = worldmap.entrance_coords
self.center_screen_on_coords(eleft, etop)
def __init__(self, cell, rect, group=()):
Sprite.__init__(self, group)
self.dims = self.width, self.height = rect.width, rect.height
# fill self.image filled with the appropriate color
self.image = pygame.Surface(self.dims)
if cell.isentrance:
color = config_get_entrance_color()
elif cell.islair:
color = config_get_lair_color()
elif cell.iswalkable:
color = config_get_walkable_color()
else: # non-walkable
color = config_get_nonwalkable_color()
self.image.fill(color)
self.rect = rect
self.cell = cell
