class GameEngine(object):
def __init__(self, screen, screenSize):
self.bg = Background(screenSize)
self.player = Player()
self.player.setLimits(self.bg.getMapSize())
self.bg.updatePlayerSize(self.player.getSize())
self.bg.display(screen)
pygame.display.update()
print("*** Screen loaded ***")
def update(self, screen):
'''
1 - check where player is
2 - listen to events
3 - events + player loc -> player speeds
4 - player speeds -> new player loc
5 - player loc on bg
6 - display
'''
# calculating player speed
isPlayerOnTerrain = self.bg.isPlayerOnTerrain(self.player.getPos())
self._listenToEvents(isPlayerOnTerrain)
self.player.modifySpeedByPhysics(isPlayerOnTerrain)
# calculating player new position, bg coordinate system
newPlayerPos = self.player.calcNewPos()
newPlayerPosCollided = self.bg.detectCollision(self.player.getPos(), newPlayerPos)
self.player.setPos(newPlayerPosCollided)
# display
self.bg.moveBg(newPlayerPosCollided)
playerScreenPos = self.bg.getPlayerScreenPos(newPlayerPosCollided)
self.bg.display(screen)
self.player.display(screen, playerScreenPos)
pygame.display.update()
return self.player.didWinYet()
def _listenToEvents(self, isOnTerrain):
keys = pygame.key.get_pressed() # checking pressed keys
if keys[pygame.K_UP]:
self.player.moveUp(isOnTerrain)
if keys[pygame.K_LEFT]:
self.player.moveLeft()
return # return for dominant left moving behavior
if keys[pygame.K_RIGHT]:
self.player.moveRight()
if keys[pygame.K_p]:
if getTestMode():
self._printStatus()
def _printStatus(self):
pos = self.player.getPos()
print("Player pos: " + str(pos))
mapPos = self.bg.pos
print("Map pos: " + str(mapPos))
if _isOnLine(pos[1], self.bg.charSize[1]):
line = _getLine(self.bg.bgMap, pos[1], self.bg.charSize[1])
_printLine(line)
