# Squirrel Eat Squirrel (a 2D Katamari Damacy clone)
# By Al Sweigart al@inventwithpython.com
# http://inventwithpython.com/pygame
# Released under a "Simplified BSD" license
import random, sys, time, math, pygame
from pygame.locals import *
FPS = 30 # frames per second to update the screen
WINWIDTH = 640 # width of the program's window, in pixels
WINHEIGHT = 480 # height in pixels
HALF_WINWIDTH = int(WINWIDTH / 2)
HALF_WINHEIGHT = int(WINHEIGHT / 2)
GRASSCOLOR = (24, 255, 0)
WHITE = (255, 255, 255)
RED = (255, 0, 0)
CAMERASLACK = 90 # 중앙에서 다람쥐가 얼마나 멀어지면 카메라를 움직일지 결정
MOVERATE = 9 # how fast the player moves
BOUNCERATE = 6 # how fast the player bounces (large is slower)
BOUNCEHEIGHT = 30 # how high the player bounces
STARTSIZE = 25 # how big the player starts off
WINSIZE = 300 # how big the player needs to be to win
INVULNTIME = 2 # how long the player is invulnerable after being hit in seconds
GAMEOVERTIME = 4 # how long the "game over" text stays on the screen in seconds
MAXHEALTH = 3 # how much health the player starts with
NUMGRASS = 80 # number of grass objects in the active area
NUMSQUIRRELS = 30 # number of squirrels in the active area
SQUIRRELMINSPEED = 3 # slowest squirrel speed
SQUIRRELMAXSPEED = 7 # fastest squirrel speed
DIRCHANGEFREQ = 2 # % chance of direction change per frame
LEFT = 'left'
RIGHT = 'right'
"""
이 프로그램 에는 3개의 데이터 구조가 있다. player, enemy squirrel.grass 객체이다. 각 데이터 구조는 딕셔너러이며
해당 키를 가지고 있다.
3개의 데이터 구조에서 공통으로 사용하는 키 :
'x' - 게임 세계 왼쪽 좌표
'y' - 게임 세계 위쪽 좌표
'rect' - 스크린에 객체가 위치해야 하는 영역이며 pygame.Rect 객체로 표시
Player 데이터 구조에서 사용하는 키 :
'Surface' - 화면에 그릴 다람쥐 이미지를 저장하는 pygame.Surface object
'facing' - setting LEFT or RIGHT 플레이어가 어느 방향으로 보고 있을지 결정
'size' - 플레이어의 너비와 높이. 픽셀단위
'bounce' - 현재 플레이어가 점프 동작 중 어떤 위치에 있는지 나타낸다. 0은 그냥 서잇고 BOUNCERATE 까지 점프
'health'- 라이프가 얼마나 남아 있느지 보여주는 정수 값.
Enemy Squirrel 데이터 구조에서 사용하는 키 :
'surface'
'movex' 프레임당 다람쥐가 몇 픽셀을 수평으로 움직였는지 저장. 음수는 왼쪽 양수 오른쪽
'movey' - 프레임당 다람쥐가 몇 픽셀을 수직으로 움직였는지 저장. 음수는 위쪽 양수 아래쪽
'width' - 다람쥐 이미지의 너비
'height' - 다람쥐 이미지의 높이
'bounce' - 현재 플레이어가 점프 동작 중 어떤 위치에 있는지 나타낸다.
'bouncerate' - 다람쥐가 얼마나 빨리 점프
'bounceheight' - 다람쥐가 얼마나 높이 점프
Grass 데이터 구조에서 사용하는 키 :
'grassImage' - GRASSIMAGES의 pygame.Surface 객체를 가리키는 인덱스 숫자 해당 grass객체를 위해서 사용한다.
"""
def main():
global FPSCLOCK, DISPLAYSURF, BASICFONT, L_SQUIR_IMG, R_SQUIR_IMG, GRASSIMAGES
pygame.init()
FPSCLOCK = pygame.time.Clock()
pygame.display.set_icon(pygame.image.load('gameicon.png'))
DISPLAYSURF = pygame.display.set_mode((WINWIDTH, WINHEIGHT))
pygame.display.set_caption('Chans Squirrel Eat Squirrel')
BASICFONT = pygame.font.Font('freesansbold.ttf', 32)
# load the image files
L_SQUIR_IMG = pygame.image.load('squirrel.png')
R_SQUIR_IMG = pygame.transform.flip(L_SQUIR_IMG, True, False)
GRASSIMAGES = []
for i in range(1, 5):
GRASSIMAGES.append(pygame.image.load('grass%s.png' % i))
while True:
runGame()
def runGame():
# set up variables for the start of a new game
invulnerableMode = False # if the player is invulnerable
invulnerableStartTime = 0 # time the player became invulnerable
gameOverMode = False # if the player has lost
gameOverStartTime = 0 # time the player lost
winMode = False # if the player has won
# create the surfaces to hold game text
gameOverSurf = BASICFONT.render('Game Over', True, WHITE)
gameOverRect = gameOverSurf.get_rect()
gameOverRect.center = (HALF_WINWIDTH, HALF_WINHEIGHT)
winSurf = BASICFONT.render('You have achieved OMEGA SQUIRREL!', True, WHITE)
winRect = winSurf.get_rect()
winRect.center = (HALF_WINWIDTH, HALF_WINHEIGHT)
winSurf2 = BASICFONT.render('(Press "r" to restart.)', True, WHITE)
winRect2 = winSurf2.get_rect()
winRect2.center = (HALF_WINWIDTH, HALF_WINHEIGHT + 30)
# camerax and cameray are the top left of where the camera view is
camerax = 0
cameray = 0
grassObjs = [] # stores all the grass objects in the game
squirrelObjs = [] # stores all the non-player squirrel objects
# stores the player object:
playerObj = {'surface': pygame.transform.scale(L_SQUIR_IMG, (STARTSIZE, STARTSIZE)),
'facing': LEFT,
'size': STARTSIZE,
'x': HALF_WINWIDTH,
'y': HALF_WINHEIGHT,
'bounce':0,
'health': MAXHEALTH}
moveLeft = False
moveRight = False
moveUp = False
moveDown = False
# start off with some random grass images on the screen
for i in range(10):
grassObjs.append(makeNewGrass(camerax, cameray))
grassObjs[i]['x'] = random.randint(0, WINWIDTH)
grassObjs[i]['y'] = random.randint(0, WINHEIGHT)
while True: # main game loop
# Check if we should turn off invulnerability
if invulnerableMode and time.time() - invulnerableStartTime > INVULNTIME:
invulnerableMode = False
# move all the squirrels
for sObj in squirrelObjs:
# move the squirrel, and adjust for their bounce
sObj['x'] += sObj['movex']
sObj['y'] += sObj['movey']
sObj['bounce'] += 1
if sObj['bounce'] > sObj['bouncerate']:
sObj['bounce'] = 0 # reset bounce amount
# random chance they change direction
if random.randint(0, 99) < DIRCHANGEFREQ:
sObj['movex'] = getRandomVelocity()
sObj['movey'] = getRandomVelocity()
if sObj['movex'] > 0: # faces right
sObj['surface'] = pygame.transform.scale(R_SQUIR_IMG, (sObj['width'], sObj['height']))
else: # faces left
sObj['surface'] = pygame.transform.scale(L_SQUIR_IMG, (sObj['width'], sObj['height']))
# go through all the objects and see if any need to be deleted.
for i in range(len(grassObjs) - 1, -1, -1):
if isOutsideActiveArea(camerax, cameray, grassObjs[i]):
del grassObjs[i]
for i in range(len(squirrelObjs) - 1, -1, -1):
if isOutsideActiveArea(camerax, cameray, squirrelObjs[i]):
del squirrelObjs[i]
# add more grass & squirrels if we don't have enough.
while len(grassObjs) < NUMGRASS:
grassObjs.append(makeNewGrass(camerax, cameray))
while len(squirrelObjs) < NUMSQUIRRELS:
squirrelObjs.append(makeNewSquirrel(camerax, cameray))
# adjust camerax and cameray if beyond the "camera slack"
playerCenterx = playerObj['x'] + int(playerObj['size'] / 2)
playerCentery = playerObj['y'] + int(playerObj['size'] / 2)
if (camerax + HALF_WINWIDTH) - playerCenterx > CAMERASLACK:
camerax = playerCenterx + CAMERASLACK - HALF_WINWIDTH
elif playerCenterx - (camerax + HALF_WINWIDTH) > CAMERASLACK:
camerax = playerCenterx - CAMERASLACK - HALF_WINWIDTH
if (cameray + HALF_WINHEIGHT) - playerCentery > CAMERASLACK:
cameray = playerCentery + CAMERASLACK - HALF_WINHEIGHT
elif playerCentery - (cameray + HALF_WINHEIGHT) > CAMERASLACK:
cameray = playerCentery - CAMERASLACK - HALF_WINHEIGHT
# draw the green background
DISPLAYSURF.fill(GRASSCOLOR)
# draw all the grass objects on the screen
for gObj in grassObjs:
gRect = pygame.Rect( (gObj['x'] - camerax,
gObj['y'] - cameray,
gObj['width'],
gObj['height']) )
DISPLAYSURF.blit(GRASSIMAGES[gObj['grassImage']], gRect)
# draw the other squirrels
for sObj in squirrelObjs:
sObj['rect'] = pygame.Rect( (sObj['x'] - camerax,
sObj['y'] - cameray - getBounceAmount(sObj['bounce'], sObj['bouncerate'], sObj['bounceheight']),
sObj['width'],
sObj['height']) )
DISPLAYSURF.blit(sObj['surface'], sObj['rect'])
# draw the player squirrel
flashIsOn = round(time.time(), 1) * 10 % 2 == 1
if not gameOverMode and not (invulnerableMode and flashIsOn):
playerObj['rect'] = pygame.Rect( (playerObj['x'] - camerax,
playerObj['y'] - cameray - getBounceAmount(playerObj['bounce'], BOUNCERATE, BOUNCEHEIGHT),
playerObj['size'],
playerObj['size']) )
DISPLAYSURF.blit(playerObj['surface'], playerObj['rect'])
# draw the health meter
drawHealthMeter(playerObj['health'])
for event in pygame.event.get(): # event handling loop
if event.type == QUIT:
terminate()
elif event.type == KEYDOWN:
if event.key in (K_UP, K_w):
moveDown = False
moveUp = True
elif event.key in (K_DOWN, K_s):
moveUp = False
moveDown = True
elif event.key in (K_LEFT, K_a):
moveRight = False
moveLeft = True
if playerObj['facing'] != LEFT: # change player image
playerObj['surface'] = pygame.transform.scale(L_SQUIR_IMG, (playerObj['size'], playerObj['size']))
playerObj['facing'] = LEFT
elif event.key in (K_RIGHT, K_d):
moveLeft = False
moveRight = True
if playerObj['facing'] != RIGHT: # change player image
playerObj['surface'] = pygame.transform.scale(R_SQUIR_IMG, (playerObj['size'], playerObj['size']))
playerObj['facing'] = RIGHT
elif winMode and event.key == K_r:
return
elif event.type == KEYUP:
# stop moving the player's squirrel
if event.key in (K_LEFT, K_a):
moveLeft = False
elif event.key in (K_RIGHT, K_d):
moveRight = False
elif event.key in (K_UP, K_w):
moveUp = False
elif event.key in (K_DOWN, K_s):
moveDown = False
elif event.key == K_ESCAPE:
terminate()
if not gameOverMode:
# actually move the player
if moveLeft:
playerObj['x'] -= MOVERATE
if moveRight:
playerObj['x'] += MOVERATE
if moveUp:
playerObj['y'] -= MOVERATE
if moveDown:
playerObj['y'] += MOVERATE
if (moveLeft or moveRight or moveUp or moveDown) or playerObj['bounce'] != 0:
playerObj['bounce'] += 1
if playerObj['bounce'] > BOUNCERATE:
playerObj['bounce'] = 0 # reset bounce amount
# check if the player has collided with any squirrels
for i in range(len(squirrelObjs)-1, -1, -1):
sqObj = squirrelObjs[i]
if 'rect' in sqObj and playerObj['rect'].colliderect(sqObj['rect']):
# a player/squirrel collision has occurred
if sqObj['width'] * sqObj['height'] <= playerObj['size']**2:
# player is larger and eats the squirrel
playerObj['size'] += int( (sqObj['width'] * sqObj['height'])**0.2 ) + 1
del squirrelObjs[i]
if playerObj['facing'] == LEFT:
playerObj['surface'] = pygame.transform.scale(L_SQUIR_IMG, (playerObj['size'], playerObj['size']))
if playerObj['facing'] == RIGHT:
playerObj['surface'] = pygame.transform.scale(R_SQUIR_IMG, (playerObj['size'], playerObj['size']))
if playerObj['size'] > WINSIZE:
winMode = True # turn on "win mode"
elif not invulnerableMode:
# player is smaller and takes damage
invulnerableMode = True
invulnerableStartTime = time.time()
playerObj['health'] -= 1
if playerObj['health'] == 0:
gameOverMode = True # turn on "game over mode"
gameOverStartTime = time.time()
else:
# game is over, show "game over" text
DISPLAYSURF.blit(gameOverSurf, gameOverRect)
if time.time() - gameOverStartTime > GAMEOVERTIME:
return # end the current game
# check if the player has won.
if winMode:
DISPLAYSURF.blit(winSurf, winRect)
DISPLAYSURF.blit(winSurf2, winRect2)
pygame.display.update()
FPSCLOCK.tick(FPS)
def drawHealthMeter(currentHealth):
for i in range(currentHealth): # draw red health bars
pygame.draw.rect(DISPLAYSURF, RED, (15, 5 + (10 * MAXHEALTH) - i * 10, 20, 10))
for i in range(MAXHEALTH): # draw the white outlines
pygame.draw.rect(DISPLAYSURF, WHITE, (15, 5 + (10 * MAXHEALTH) - i * 10, 20, 10), 1)
def terminate():
pygame.quit()
sys.exit()
def getBounceAmount(currentBounce,bounceRate,bounceHeight):
#bounce에 관련된 변수에 따라 몇 픽셀이나 점프할 것인지 값을 결정해서 반환한다.
#bounceRate 숫자가 크면 느린 점프가 된다.
#bounceHeight 숫자가 크면 높은 점프가 된다.
#CurrentBounce 는 항상 BounceRate 보다 작다.
return int(math.sin((math.pi/float(bounceRate))*currentBounce)*bounceHeight)
def getRandomVelocity():
speed = random.randint(SQUIRRELMINSPEED, SQUIRRELMAXSPEED)
if random.randint(0, 1) == 0:
return speed
else:
return -speed
def getRandomOffCameraPos(camerax, cameray, objWidth, objHeight):
# create a Rect of the camera view
cameraRect = pygame.Rect(camerax, cameray, WINWIDTH, WINHEIGHT)
while True:
x = random.randint(camerax - WINWIDTH, camerax + (2 * WINWIDTH))
y = random.randint(cameray - WINHEIGHT, cameray + (2 * WINHEIGHT))
# create a Rect object with the random coordinates and use colliderect()
# to make sure the right edge isn't in the camera view.
objRect = pygame.Rect(x, y, objWidth, objHeight)
if not objRect.colliderect(cameraRect):
return x, y
def makeNewSquirrel(camerax, cameray):
sq = {}
generalSize = random.randint(5, 25)
multiplier = random.randint(1, 3)
sq['width'] = (generalSize + random.randint(0, 10)) * multiplier
sq['height'] = (generalSize + random.randint(0, 10)) * multiplier
sq['x'], sq['y'] = getRandomOffCameraPos(camerax, cameray, sq['width'], sq['height'])
sq['movex'] = getRandomVelocity()
sq['movey'] = getRandomVelocity()
if sq['movex'] < 0: # squirrel is facing left
sq['surface'] = pygame.transform.scale(L_SQUIR_IMG, (sq['width'], sq['height']))
else: # squirrel is facing right
sq['surface'] = pygame.transform.scale(R_SQUIR_IMG, (sq['width'], sq['height']))
sq['bounce'] = 0
sq['bouncerate'] = random.randint(10, 18)
sq['bounceheight'] = random.randint(10, 50)
return sq
def makeNewGrass(camerax, cameray):
gr = {}
gr['grassImage'] = random.randint(0, len(GRASSIMAGES) - 1)
gr['width'] = GRASSIMAGES[0].get_width()
gr['height'] = GRASSIMAGES[0].get_height()
gr['x'], gr['y'] = getRandomOffCameraPos(camerax, cameray, gr['width'], gr['height'])
gr['rect'] = pygame.Rect( (gr['x'], gr['y'], gr['width'], gr['height']) )
return gr
def isOutsideActiveArea(camerax, cameray, obj):
# Return False if camerax and cameray are more than
# a half-window length beyond the edge of the window.
boundsLeftEdge = camerax - WINWIDTH
boundsTopEdge = cameray - WINHEIGHT
boundsRect = pygame.Rect(boundsLeftEdge, boundsTopEdge, WINWIDTH * 3, WINHEIGHT * 3)
objRect = pygame.Rect(obj['x'], obj['y'], obj['width'], obj['height'])
return not boundsRect.colliderect(objRect)
if __name__ == '__main__':
main()많이 꽤 복잡하당...
흐규흐규
힘들었다 .
시작하면 이르케 다람쥐가 총총총
생각보다 어렵다..
그런데 어느정도 크기가 커지고 나면 이 친구보다 큰 친구가 없어 쉬워진다..
적 다람쥐도 비례해서 커지게하는 설정을 추가로 할수있으면 좋을것같다.
이제 플레이영상을 보이겠다.
영상
끄으으으읕
부족한 실력을 엉덩이 힘으로 채워나가는 개발자 서희찬입니다 :)