12 Days of Python – Day 4
This is Day 4 of 12 Days of Python. This is the fourth in a series of posts where we use Python and the Pygame module to draw a Christmas scene. Each day we add something else to the scene, and we show a new aspect of Python or Pygame. We’re also having a giveaway, where you can win a Kindle Touch!
On Day 1, we made a Pygame window and used the Pygame draw functions to draw Santa using lines circles and polygons. On Day 2, we made Santa’s arm wave. On Day 3, we added a calendar.
For Day 4 we’re going to add some code that crosses off the days on the calendar. The code uses your computer’s date to figure out whay day it is, and crosses off all the days on the calendar up to that day. So if you run it every day, you’ll see more and more days crossed off as we get closer to Christmas.
# santa_4.py
# This is the code for Day 4 of "12 Days of Python",
# by the authors of "Hello World! Computer Programming for Kids and Other Beginners".
import pygame, sys, math, datetime
def rotatePointAroundCenter(point, center, degrees):
displacement = (point[0] - center[0], point[1] - center[1])
radians = math.radians(degrees)
newPoint = [0,0]
newPoint[0] = displacement[0] * math.cos(radians) + displacement[1] * math.sin(radians)
newPoint[1] = displacement[1] * math.cos(radians) - displacement[0] * math.sin(radians)
return newPoint
pygame.init()
pygame.display.set_caption("12 Days of Python")
screen = pygame.display.set_mode((640,480))
santa = pygame.surface.Surface((640,480)).convert_alpha()
santa.fill((0,0,0,0))
screen.fill((0,0,0))
santasArm = pygame.surface.Surface((640,480)).convert_alpha()
santasArm.fill((0,0,0,0))
calendar = pygame.surface.Surface((189,150))
calendar.fill((255,255,255))
#---CALENDAR DRAW
for i in range(0, 189, 27):
pygame.draw.line(calendar, (0,0,0), (i,30), (i,150), 2)
for i in range(30, 151, 24):
pygame.draw.line(calendar, (0,0,0), (0, i), (189, i), 2)
cal_head_font = pygame.font.Font(None, 26)
cal_head_surface = cal_head_font.render("DECEMBER", True, (0,0,0))
cal_head_rect = cal_head_surface.get_rect()
cal_head_rect.center = (94.5, 15)
cal_num_font = pygame.font.Font(None, 20)
for i in range(1,32):
cal_num_surface= cal_num_font.render(str(i), True, (0,0,0))
cal_num_rect = cal_num_surface.get_rect()
cal_num_rect.center = (((i+3) % 7 * 27) + 13.5,((i+3) // 7 * 24) + 42)
calendar.blit(cal_num_surface, cal_num_rect)
calendar.blit(cal_head_surface, cal_head_rect)
#---CALENDAR CROSSOUT
today = datetime.datetime.now().day
month = datetime.datetime.now().month
if month == 12:
for i in range(1, today):
pygame.draw.line(calendar, (0,0,0), (((i+3) % 7 * 27) + 27, ((i + 3) // 7 * 24) + 30),
(((i + 3) % 7 * 27), ((i + 3) // 7 * 24)+54), 3 )
#---L ARM DRAW
pygame.draw.polygon(santasArm,(255,0,0),((274,207),(264,197),(243,182),(226,168),
(215,154),(212,153),(206,158),(192,155),(183,157),
(182,172),(204,190),(219,208),(244,231),(261,245))) #arm n hand
pygame.draw.polygon(santasArm, (255,255,255),((243,182),(242,176),(231,167),
(226,168),(218,181),(204,190),(204,200),(212,208),
(219,208),(232,197))) #arm fur
santasRotArm = santasArm.subsurface(pygame.rect.Rect((182,153),(92, 92)))
#---R ARM DRAW
pygame.draw.polygon(santa,(255,0,0),((358,191),(405,202),(428,207),(448,212),
(457,220),(459,226),(457,232),(444,236),(440,243),(421,237),
(399,233),(389,233),(344,236))) #arm n hand
pygame.draw.polygon(santa,(255,255,255),((428,207),(418,197),(406,197),
(407,204),(400,215),(401,237),(421,238),(421,223))) #arm fur
#---L LEG DRAW
pygame.draw.polygon(santa,(255,0,0),((270,323),(268,345),(266,352),(305,361),
(309,352),(317,326),(319,312),(272,306))) #leg
pygame.draw.polygon(santa,(102,68,34),((301,370),(266,361),(247,356),(231,357),
(224,368),(227,380),(245,388),(272,386),(274,390),(295,391))) #boot
pygame.draw.polygon(santa,(255,255,255), ((301,370),(312,355),(303,352),(293,348),
(279,346),(268,342),(263,343),(266,361))) #fur
#---R LEG DRAW
pygame.draw.polygon(santa,(255,0,0),((322,326),(330,352),(331,359),(372,350),
(369,323),(367,311),(316,314))) #leg
pygame.draw.polygon(santa, (102,68,34),((340,369),(373,361),(396,356),(410,359),
(415,375),(400,387),(366,386),(365,392),(347,393),(340,386))) #boot
pygame.draw.polygon(santa,(255,255,255),((373,361),(340,369),(334,368),(326,353),
(345,348),(359,347),(375,343)))
#---BODY DRAW
pygame.draw.polygon(santa, (255,255,255), ((234,289),(226,299),(230,316),
(281,322),(304,327),(317,326),(333,322),(363,324),
(408,304),(410,287),(402,275),(328,208),(281,207))) #vest fur
pygame.draw.polygon(santa, (255,0,0), ((271,188),(245,231),(236,259),(234,272),
(235,287),(241,295),(294,302),(300,298),(304,285),
(298,217))) #vest 1
pygame.draw.polygon(santa, (255,0,0), ((326,235),(328,286),(330,295),(335,300),
(369,297),(401,277),(389,234),(357,192),(334,197))) #vest 2
pygame.draw.circle(santa,(0,0,0),(315,243),4)
pygame.draw.circle(santa,(0,0,0),(314,257),4)
pygame.draw.circle(santa,(0,0,0),(315,274),4)
pygame.draw.circle(santa,(0,0,0),(317,293),4)
#---HEAD DRAW
pygame.draw.polygon(santa, (255,255,255),((278,153),(272,188),
(281,211),(300,232),(315,238),(326,232),(346,215),(357,191),
(351,151),(278,153))) #beard
pygame.draw.polygon(santa, (255, 218, 185),((282,151),(283,166),(309,178),
(315,179),(321,177),(345,166),(346,152),(335,140),(310,133),
(289,141))) #head
pygame.draw.polygon(santa, (255,0,0),((266,139),(278,123),
(293,112),(315,110),(343,115),(312,85),(260,134))) #hat main
pygame.draw.polygon(santa,(255,255,255),((346,152),(335,140),(310,133),
(289,141),(282,151),(270,150),(261,146),(266,139),(278,123),
(293,112),(315,110),(343,115),(357,132))) #hat rim
pygame.draw.circle(santa,(255,255,255),(255,149),15) #hat ball
pygame.draw.circle(santa,( 50, 50, 50),(307,151),3) #eye
pygame.draw.circle(santa,( 50, 50, 50),(319,151),3) #eye
pygame.draw.polygon(santa,(255,255,255),((310,140),(301,141),(294,145),(294,149),
(303,145),(309,144))) #eyebrow
pygame.draw.polygon(santa,(255,255,255),((315,146),(324,146),(330,150),(331,146),
(326,142),(317,140))) #eyebrow
pygame.draw.polygon(santa,(255,255,255),((283,167),(287,177),(296,182),(311,176),
(305,169),)) #mustachelet
pygame.draw.polygon(santa,(255,255,255),((344,168),(323,166),(319,176),(336,178))) #mustachelet
pygame.draw.lines(santa, (0,0,0), False, ((307,165),(307,169),(310,173),(321,171),(322,164)),2) #nose
counter = 0
clock = pygame.time.Clock()
while 1:
clock.tick(30)
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
screen.fill((0,0,0))
#screen.blit(santasArm, (0,0))
rotatedArm = pygame.transform.rotate(santasRotArm,math.sin(counter/5.0)*10-7)
rotArmRect = rotatedArm.get_rect()
rotArmPos = rotatePointAroundCenter((86,73),santasRotArm.get_rect().center,-math.sin(counter/5.0)*10+7)
rotArmPos[0] += 190
rotArmPos[1] += 180
rotArmRect.center = rotArmPos
screen.blit(calendar, (400, 20))
screen.blit(rotatedArm, rotArmRect)
screen.blit(santa, (0,0))
pygame.display.flip()
counter += 1
Here’s what it looks like when you run it:
To try the code out yourself, you can cut-and-paste it from the code window above into your favorite Python editor.
On Day 5, we’ll add a background to the scene.
Warren & Carter