Pygame - Revision history

Lvosandi at 16:10, 24 March 2016

2016-03-24T16:10:01Z

← Older revision		Revision as of 19:10, 24 March 2016
Line 1:		Line 1:
	Pygame is a library for programming games with Python. It handles event loop and simplifies drawing the scene.		Pygame is a library for programming games with Python. It handles event loop and simplifies drawing the scene.

	==Installation==		=Installation=

	Ubuntu users can simply apt-get the package:		Ubuntu users can simply apt-get the package:
Line 11:		Line 11:

	pip3 install pygame-1.9.2a0-cp35-none-win_amd64.whl		pip3 install pygame-1.9.2a0-cp35-none-win_amd64.whl

			=Flappy Bird clones=

	==Code example==		==Code example==

Lvosandi at 07:51, 22 March 2016

2016-03-22T07:51:51Z

← Older revision		Revision as of 10:51, 22 March 2016
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	</source>		</source>

	A perhaps easier to follow version:

			==A perhaps easier to follow version==

	<source lang="python">		<source lang="python">
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	print "Background dimensions:", background.get_size()		print "Background dimensions:", background.get_size()
	print "Bird dimensions:", bird.get_size()		print "Bird dimensions:", bird.get_size()


	def game_loop():		def game_loop():
			pipe_gap = 70
	bird_left = background.get_width() / 3		bird_left = background.get_width() / 3
	bird_top = background.get_height() / 2		bird_top = background.get_height() / 2
Line 287:		Line 288:

	scene.blit(pipe, (pipe_left, pipe_top))		scene.blit(pipe, (pipe_left, pipe_top))
	scene.blit(flipped_pipe, (pipe_left, pipe_top - ~~250~~))		scene.blit(flipped_pipe, (pipe_left, pipe_top - pipe.get_height() - pipe_gap))

	# Highlight the next pipe we could bump into		# Highlight the next pipe we could bump into
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	if bird_top > pipe_top:		if bird_top > pipe_top:
	#pygame.draw.rect(scene, (255,0,0), (px, py, 32, ~~160~~))		#pygame.draw.rect(scene, (255,0,0), (pipe_left, pipe_top, pipe.get_width(), pipe.get_height()))
	print "Game over: You bumped into pipe below!"		print "Game over: You bumped into pipe below!"
	return		return
	if bird_top < pipe_top-~~250~~:		if bird_top < pipe_top - pipe_gap:
	#pygame.draw.rect(scene, (255,0,0), (px, py-~~250~~, 32, ~~160~~))		#pygame.draw.rect(scene, (255,0,0), (pipe_left, pipe_top - pipe.get_height() - pipe_gap, pipe.get_width(), pipe.get_height()))
	print "Game over: You bumped into pipe above!"		print "Game over: You bumped into pipe above!"
	return		return
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	game_loop()		game_loop()
	again = game_over()		again = game_over()

	</source>		</source>

Lvosandi at 07:44, 22 March 2016

2016-03-22T07:44:56Z

@@ Line 223: / Line 223: @@
 if __name__ == "__main__":
      __main__()
 </source>

Lvosandi: /* Almost there! */

2016-03-22T07:36:03Z

Almost there!

Show changes

Lvosandi: /* Code example */

2016-03-22T07:35:38Z

Code example

← Older revision		Revision as of 10:35, 22 March 2016
Line 36:		Line 36:
	elif event.type == KEYDOWN and event.key == K_ESCAPE:		elif event.type == KEYDOWN and event.key == K_ESCAPE:
	return		return
	screen.blit(background, (50, 50~~), (0, 0, 200, 300~~))		screen.blit(background, (50, 50))
	screen.blit(bird, (100, 100~~), (0, 0, 17, 18~~))		screen.blit(bird, (100, 100))
	pygame.display.flip()		pygame.display.flip()

Line 54:		Line 54:
	* Implement panning of background		* Implement panning of background
	* Draw the pipes on the screen, use [http://www.pygame.org/docs/ref/transform.html#pygame.transform.flip pygame.transform.flip] to flip the pipe image		* Draw the pipes on the screen, use [http://www.pygame.org/docs/ref/transform.html#pygame.transform.flip pygame.transform.flip] to flip the pipe image


	==Improved example==		==Improved example==

Lvosandi at 16:58, 16 March 2016

2016-03-16T16:58:52Z

← Older revision		Revision as of 19:58, 16 March 2016
Line 121:		Line 121:
	* Add text overlays and scoring using [http://www.pygame.org/docs/tut/chimp/ChimpLineByLine.html pygame.font]		* Add text overlays and scoring using [http://www.pygame.org/docs/tut/chimp/ChimpLineByLine.html pygame.font]
	* Attempt to get fixed FPS		* Attempt to get fixed FPS

			==Almost there!==

			<source lang="python">
			import os, sys
			import pygame
			from pygame.locals import *


			def main_loop(screen):
			pipe = pygame.image.load("img/pipe.png")
			bird = pygame.image.load("img/bird.png")
			background = pygame.image.load("img/bg.png")

			pygame.display.set_caption('Floppy Bird')
			pygame.mouse.set_visible(0)

			print "Pipe dimensions:", pipe.get_size()
			print "Background dimensions:", background.get_size()

			y = 100 # Approximately in the vertical center of the screen
			vy = 0

			level = [0, 1, 0, 0, 2, 0, 0, 3,0, 1, 0, 0, 2, 0, 0, 3,0, 1, 0, 0, 2, 0, 0, 3,]

			antipipe = pygame.transform.flip(pipe, 0, 1)
			frames = 0 # Here we count frames
			scene = pygame.Surface((240,180)) # This is where we compose the scene
			while True:
			scene.fill(0) # This fills the buffer with black pixels
			for event in pygame.event.get():
			if event.type == QUIT:
			return
			elif event.type == KEYDOWN and event.key == K_ESCAPE:
			return
			elif event.type == KEYDOWN and event.key == K_SPACE:
			vy -= 0.02
			print "Space was pressed!"

			vy += 0.0001
			y += vy



			for i in range(0, 3):
			scene.blit(background, (i*148 - (frames/10) % 148, 0), (0, 0, 200, 300))
			frames += 1

			# This is basically the inverse of calculation of px below
			current_pipe = int((frames/2-400+100)/32)
			print "current pipe is:", current_pipe

			for offset, pipe_height in enumerate(level):
			if pipe_height == 0: continue # Skip pipes whose height is 0
			px = 400-frames/2 + offset * 32
			py = 180 - pipe_height * 32
			scene.blit(pipe, (px, py), (0, 0, 32,160))
			scene.blit(antipipe, (px, py - 250), (0, 0, 32,160))

			# We initialized y = 100 above ;)

			if offset == current_pipe: # Highlight the next pipe we could bump into

			if y > py:
			#pygame.draw.rect(scene, (255,0,0), (px, py, 32, 160))
			print "Game over: You bumped into pipe below!"
			return
			if y < py-250:
			#pygame.draw.rect(scene, (255,0,0), (px, py-250, 32, 160))
			print "Game over: You bumped into pipe above!"
			return

			if current_pipe > len(level):
			print "You win! You've passed all the roadblocks!"
			return

			# This will return scene bitmap height and width in pixels
			width, height = scene.get_size()

			if y > height:
			print "Game over: Bird fell down!"
			return
			if y < 0:
			print "Game over: You're aiming too high!"
			return



			scene.blit(bird, (100, int(y)), (18 * (int(frames/100) % 3), 0, 18, 13))
			pygame.transform.scale(scene, screen.get_size(), screen) # Here we scale it up and paste to screen

			pygame.display.flip()


			def game_over(screen, score):
			while True:
			# This does nothing yet!
			return

			def __main__():
			pygame.init()
			screen = pygame.display.set_mode((800,600))
			score = main_loop(screen)
			game_over(screen, score)

			if __name__ == "__main__":
			__main__()
			</source>

Lvosandi: /* Improved example */

2016-03-13T14:20:08Z

Improved example

← Older revision		Revision as of 17:20, 13 March 2016
Line 68:		Line 68:
	bird = pygame.image.load("img/bird.png")		bird = pygame.image.load("img/bird.png")
	background = pygame.image.load("img/bg.png")		background = pygame.image.load("img/bg.png")


	screen = pygame.display.set_mode((800,600))		screen = pygame.display.set_mode((800,600))
	pygame.display.set_caption('Floppy Bird')		pygame.display.set_caption('Floppy Bird')
	pygame.mouse.set_visible(0)		pygame.mouse.set_visible(0)

	print "Pipe dimensions:", pipe.get_size()		print "Pipe dimensions:", pipe.get_size()
	print "Background dimensions:", background.get_size()		print "Background dimensions:", background.get_size()

	y = 0		y = 0
	vy = 0		vy = 0

	level = [0, 1, 0, 0, 2, 0, 0, 3,0, 1, 0, 0, 2, 0, 0, 3,0, 1, 0, 0, 2, 0, 0, 3,]		level = [0, 1, 0, 0, 2, 0, 0, 3,0, 1, 0, 0, 2, 0, 0, 3,0, 1, 0, 0, 2, 0, 0, 3,]

Line 93:		Line 93:
	return		return
	elif event.type == KEYDOWN and event.key == K_SPACE:		elif event.type == KEYDOWN and event.key == K_SPACE:
	vy -= 5		vy -= 0.02
	print "Space was pressed!"		print "Space was pressed!"
	~~if frames % 100 == 0:~~
	vy += 1		vy += 0.0001
	y += vy		y += vy
	for i in range(0, 3):		for i in range(0, 3):
	scene.blit(background, (i*148 - (frames/10) % 148, 0), (0, 0, 200, 300))		scene.blit(background, (i*148 - (frames/10) % 148, 0), (0, 0, 200, 300))
	frames += 1		frames += 1

	for offset, pipe_height in enumerate(level):		for offset, pipe_height in enumerate(level):
	if pipe_height == 0: continue # Skip pipes whose height is 0		if pipe_height == 0: continue # Skip pipes whose height is 0
	scene.blit(pipe, (400-frames/2 + offset * 32, 180 - pipe_height * 32), (0, 0, 100,160))		scene.blit(pipe, (400-frames/2 + offset * 32, 180 - pipe_height * 32), (0, 0, 100,160))
	scene.blit(antipipe, (400-frames/2 + offset * 32, 180 - pipe_height * 32 - 250), (0, 0, 100,160))		scene.blit(antipipe, (400-frames/2 + offset * 32, 180 - pipe_height * 32 - 250), (0, 0, 100,160))

	scene.blit(bird, (100, 100+y), (18 * (int(frames/100) % 3), 0, 18, 13))		scene.blit(bird, (100, 100+int(y)), (18 * (int(frames/100) % 3), 0, 18, 13))
	pygame.transform.scale(scene, screen.get_size(), screen) # Here we scale it up and paste to screen		pygame.transform.scale(scene, screen.get_size(), screen) # Here we scale it up and paste to screen

	pygame.display.flip()		pygame.display.flip()

Lvosandi at 18:06, 9 March 2016

2016-03-09T18:06:44Z

← Older revision		Revision as of 21:06, 9 March 2016
Line 114:		Line 114:
	if __name__ == "__main__":		if __name__ == "__main__":
	__main__()		__main__()
	</~~script~~>		</source>

	Exercises:		Exercises:

Lvosandi at 18:06, 9 March 2016

2016-03-09T18:06:29Z

@@ Line 50: / Line 50: @@
-==Challenges==
+Execrises:
 * Implement panning of background
 * Draw the pipes on the screen, use [http://www.pygame.org/docs/ref/transform.html#pygame.transform.flip pygame.transform.flip] to flip the pipe image
 * Add collision detection

Lvosandi at 11:55, 9 March 2016

2016-03-09T11:55:36Z

← Older revision		Revision as of 14:55, 9 March 2016
Line 50:		Line 50:


	~~Challenges~~		==Challenges==
	~~======~~====

	* Implement panning of background		* Implement panning of background
	* Draw the pipes on the screen, use [http://www.pygame.org/docs/ref/transform.html#pygame.transform.flip pygame.transform.flip] to flip the pipe image		* Draw the pipes on the screen, use [http://www.pygame.org/docs/ref/transform.html#pygame.transform.flip pygame.transform.flip] to flip the pipe image
			* Add collision detection