class GameScreen(Screen):
def __init__(self, levelfile):
self.level = leveltypes[levelfile.properties.get('leveltype', 'Level')](levelfile)
self.player = self.level.sprites['Player'].pop()
self.tileset = Tileset(config.tilepath, config.tilesize)
self.renderer = Renderer(self.tileset)
self.redraw = True
def resize_view(self):
"""Given the window size, set view size and cell size,
then resize the view and tileset."""
ww, wh = self.window.view.get_size()
vw, vh = config.maxviewcells
# set view size in cells and cell size in pixels
self.viewcells = min(vw, self.level.width), min(vh, self.level.height)
self.cellsize = self._get_cell_size((ww, wh), self.viewcells)
# resize view and tileset, and schedule a full redraw
self.view = self.window.view.subsurface(self._get_view_rect((ww, wh), self.viewcells))
self.tileset.resize_tileset(self.cellsize)
self.redraw = True
def _get_cell_size(self, (ww, wh), (vw, vh)):
"""Given a window size in pixels, and a view size in cells,
return the largest cell size that will fit the view in the window."""
tw, th = self.tileset.dims
# divide and multiply by tile size, to force cell size to be an exact multiple
return min(ww / vw / tw * tw, wh / vh / th * th)
