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Hi,
I am a Pygame newbie.
I have modified the "movit" tutorial trying to
develop a very basic platform game.
I have troubles in making my hero standing on the
platforms; it "sinks" in the platforms more or less deeply according to the hero
and to the platform positions.
I guess the mistake is in the following code I use
to detect the platform "support" for my hero.
# check if hero
is on a platform
flag = 0 for t in pl_list : #print t.pos,hero.pos,t.pos.colliderect(hero.pos) if t.pos.colliderect(hero.pos) == 1 : hero.support = 1 flag = 1 if hero.s > 3 : # if the jump is alraedy in the #descending part then it # stops jumping hero.s = 0 j = 0 if flag == 0 : # hero is not on a platform hero.support = 0 if hero.support == 0 and j == 0: # hero has support and is not jumping hero.fall() hero.move() elif j == 1 : #hero is jumping hero.jump(dir) else : hero.move() However I enclose the full code (see below), since
the problem might be somewhere else.
Thanks in advance for your help.
Fabrizio .
------------------------------------------ import pygame, sys, os
from pygame.locals import * j = 0
dir =1 class GameObject: def __init__(self, image, posx, posy, patternX, patternY, support=1): self.image = image self.pos = image.get_rect().move(posx, posy) self.patternX = patternX self.patternY = patternY self.support = support self.s = 0 def move(self): #print 'self.s',self.s #print 'patternX',self.patternX #print 'patternY',self.patternY self.pos =
self.pos.move(self.patternX[self.s],
self.patternY[self.s])
#print self.patternX[self.s], self.patternY[self.s] if self.pos.right > 640: self.pos.left = 0 self.s = self.s +
1
# at the end of the pattern starts from the beginning if self.s > len(self.patternX)-1: self.s = 0 return def jump(self,dir): global j if j == 1 : #self.patternX = [dir*10,dir*10,dir*10,dir*10,dir*10,dir*10] self.patternX = [dir*10,dir*20,dir*20,dir*20,dir*20,dir*20,dir*20,dir*10] self.patternY = [-60,-50,-20,-10,10,20,50,60] self.pos = self.pos.move(self.patternX[self.s], self.patternY[self.s]) #print self.patternX[self.s], self.patternY[self.s] if self.pos.right > 640: self.pos.left = 0 self.s = self.s +
1
# at the end of the pattern if self.s > len(self.patternX)-1: self.s = 0 j = 0 self.patternX=[5] self.patternY=[0] return def fall(self):
self.patternX=[0]
self.patternY=[10] return
def cancel(self): screen.blit(background, self.pos, self.pos) def calculate(self) :
screen.blit(self.image, self.pos) def update_all (dir, ob_list): global j pl_list = [ob_list[2], ob_list[3],ob_list[4],ob_list[5]] # it's the list of the objects "platform" hero.cancel() villain.cancel() # check if hero is on a platform
flag = 0 for t in pl_list : #print t.pos,hero.pos,t.pos.colliderect(hero.pos) if t.pos.colliderect(hero.pos) == 1 : hero.support = 1 flag = 1 if hero.s > 3 : # if the jump is alraedy in the #descending part then it # stops jumping hero.s = 0 j = 0 if flag == 0 : # hero is not on a platform hero.support = 0 if hero.support == 0 and j == 0:
# hero has support and is not jumping hero.fall() hero.move() elif j == 1 : #hero is jumping hero.jump(dir) else : hero.move() if hero.pos.colliderect(villain.pos) == 1: # collision with a villain #print "Collision !" pass villain.move() for t in ob_list: t.calculate() pygame.display.update() pygame.time.delay(80) hero.patternX=[0] hero.patternY=[0] return #main screen = pygame.display.set_mode((640, 480))
heroimg = pygame.image.load('data/hero5.bmp').convert() heroimg.set_colorkey((0,0,0),RLEACCEL) # set black as the transparent color #so that it will not be detected #during collision ? => no; collision is still # detected => how to do ? villimg =
pygame.image.load('data/villain5.bmp').convert()
villimg.set_colorkey((0,0,0),RLEACCEL) # set black as the transparent color platimg =pygame.image.load('data/platform3.bmp').convert() background = ""> screen.blit(background, (0, 0))
hero = GameObject(heroimg, 1, 150, [0],[0])
villain = GameObject(villimg, 150, 150, [10,10,10,10,10,10,-10,-10,-10,-10,-10,-10],[0,0,0,0,0,0,-10,-10,-10,10,10,10]) platform = GameObject(platimg, 1, 210, [0],[0]) platform2 = GameObject(platimg, 350, 213, [0],[0]) platform3 = GameObject(platimg, 150, 320, [0],[0]) platform4 = GameObject(platimg, 10, 400, [0],[0]) ob_list = [hero,villain, platform, platform2, platform3, platform4] update_all(dir, ob_list)
pygame.key.set_repeat() while 1:
## hero.patternX=[0] ## hero.patternY=[0] event = pygame.event.poll() keystate = pygame.key.get_pressed() if event.type == QUIT: sys.exit() if keystate[K_SPACE] and hero.support == 1: # jump has been pushed and hero is not falling j = 1 if keystate[K_RIGHT]: dir = 1 # is the direction flag : 1 = right elif keystate[K_LEFT]: dir = -1 # is the direction flag : -1 = left else: dir = 0 # is the direction flag : 0 = no direction elif keystate[K_RIGHT]: hero.patternX=[5] elif keystate[K_LEFT]: hero.patternX=[-5] update_all(dir,ob_list) ------------------------------------------------------------ |