def __init__(self, elapsedTime, levelPath=None):
super().__init__(elapsedTime)
# if we paused and want to return to this state, we need to subtract the time
# spent while paused
self.pauseTime = 0
self.player = None
self.platform = None
# create groups
self.terrainGroup = pygame.sprite.Group()
self.allRenderedObjs = pygame.sprite.RenderUpdates()
# assign classes to groups
#Spacecraft.containers = allRenderedObjs
#TerrainUnit.containers = allRenderedObjs, terrainGroup
if levelPath is not None:
self.load_level(levelPath)
else:
# by default, just create one giant rectangle at the bottom of the
# screen
terrainUnit = Entities.TerrainUnit( \
0, 3.*Globals.WINDOWRECT.height/4, # y = 3/4ths the height of
# the window
Globals.WINDOWRECT.width, Globals.WINDOWRECT.height / 4)
# place the platform at the center
self.platform = Entities.LandingPlatform( \
Globals.WINDOWRECT.centerx, terrainUnit.rect.y)
self.allRenderedObjs.add(self.platform)
self.allRenderedObjs.add(terrainUnit)
self.terrainGroup.add(terrainUnit)
# finally, place the player just above the platform
self.player = Entities.Spacecraft( \
Globals.WINDOWRECT.centerx, Globals.WINDOWRECT.centery)
self.allRenderedObjs.add(self.player)
def load_level(self, path):
f = open(path, "r")
for line in f:
matches = findall("[0-9]+", line)
if len(matches) == 2 and self.player is None:
# define the spacecraft
self.player = Entities.Spacecraft( \
int(matches[0]), int(matches[1]))
self.allRenderedObjs.add(self.player)
elif len(matches) == 2 and self.platform is None:
#define the platform
self.platform = Entities.LandingPlatform( \
int(matches[0]), int(matches[1]))
self.allRenderedObjs.add(self.platform)
platformDefined = True
elif len(matches) == 4:
# define the terrain units
terrainUnit = Entities.TerrainUnit( \
int(matches[0]), int(matches[1]), int(matches[2]), int(matches[3]))
self.allRenderedObjs.add(terrainUnit)
self.terrainGroup.add(terrainUnit)
terrainDefined = True
else:
print("Error: reading level file,", len(matches),
"fields matched")
raise RuntimeError
if not(self.player is not None \
and self.platform is not None \
and len(self.terrainGroup) > 0):
print(
"Error: there must be a location definition for at least one of each:",
"spacecraft, platform, terrain")
raise RuntimeError
