248 lines
8.3 KiB
Python
248 lines
8.3 KiB
Python
import pygame
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from pygame.locals import *
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from random import random,randint
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from math import sqrt
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screen = None
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color = (128,128,128)
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color_vel = (0,0,0)
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running = True
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class Vector(tuple):
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def __add__(self,other):
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if len(self) != len(other):
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raise Exception("Can't add vectors of different size: %d %d" % (len(self), len(other)))
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return Vector([ self[i]+other[i] for i in range(len(self)) ])
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def __sub__(self,other):
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if len(self) != len(other):
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raise Exception("Can't subtract vectors of different size")
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return Vector([ self[i]-other[i] for i in range(len(self)) ])
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def __mul__(self,factor):
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return Vector([ self[i]*factor for i in range(len(self)) ])
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def __div__(self,factor):
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return self.__mul__(1.0/factor)
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def __truediv__(self,factor):
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return self.__div__(factor)
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def __rmul__(self,factor):
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return self.__mul__(factor)
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def __rdiv__(self,factor):
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raise NotImplemented
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def __iadd__(self,other):
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return self.__add__(other)
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def __isub__(self,other):
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return self.__sub__(other)
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def __neg__(self):
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return self.__mul__(-1.0)
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def __setitem__(self,k,v):
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raise Exception("Not available") # immutable
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def distance(self, other):
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if len(self) != len(other):
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raise Exception("Can't calculate distance between vectors of different size")
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return sqrt(sum([ (self[i]-other[i])**2 for i in range(len(self)) ]))
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def length(self):
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return self.distance( Vector( (0,0) ) )
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class Tick(object):
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def __init__(self, tickrange):
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self.tickrange = tickrange
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self.m_tick = 0
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def tick(self):
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self.m_tick = (self.m_tick+1)%self.tickrange
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return self.m_tick == 0
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class Mode(object):
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def __init__(self, screensize):
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self.screensize = screensize
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def update(self):
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pass
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def draw(self,screen):
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pass
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def minmax(vmin,vmax):
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return lambda v: min(vmax,max(vmin,v))
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class TransitionMode(Mode):
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t = 0.3
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a = 30
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def __init__(self, screensize):
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Mode.__init__(self,screensize)
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self.color = Vector( (127,127,127) )
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self.color_vel = Vector( 2*self.a*random()+self.a for i in range(3) )
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self.utick = Tick(10)
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def update(self):
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if self.utick.tick():
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randvec = Vector( (2*self.a*random()-self.a) for i in range(3) )
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self.color_vel = (1-self.t)*self.color_vel+self.t*randvec
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self.color = Vector( map(minmax(0,255), self.color+self.color_vel) )
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def draw(self,screen):
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screen.fill( self.color )
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class LelMode(Mode):
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color = [(255,0,0),(0,255,0)]
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size = 10
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def __init__(self,screensize):
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Mode.__init__(self,screensize)
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self.offset = 0
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self.tick = 0
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def update(self):
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self.offset = (self.offset+1)%2
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def draw(self,screen):
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w,h = screen.get_size()
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for x in range(w):
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color = self.color[ (x//self.size + self.offset)%2]
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pygame.draw.line(screen, color, (x,0), (x,h) )
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class BallMode(Mode):
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def __init__(self,screensize):
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Mode.__init__(self,screensize)
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self.ball = [200,200]
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self.radius = 70
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self.velocity = [10,10]
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def update(self):
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w, h = self.screensize
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if self.ball[0] + self.radius >= w:
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self.velocity[0] = -abs(self.velocity[0])
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elif self.ball[0] - self.radius < 0:
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self.velocity[0] = abs(self.velocity[0])
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elif self.ball[1] + self.radius >= h:
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self.velocity[1] = -abs(self.velocity[1])
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elif self.ball[1] - self.radius < 0:
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self.velocity[1] = abs(self.velocity[1])
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for i in range(2):
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self.ball[i] += self.velocity[i]
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def draw(self,screen):
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screen.fill( (0,0,0) )
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pygame.draw.circle(screen, (255,0,0), tuple(self.ball), self.radius)
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class Particle:
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def __init__(self,color, pos, vel):
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self.color = color
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self.pos = Vector(pos)
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self.vel = Vector(vel)
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def updateVel(self,gravity,max_v=20):
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gravity = Vector(gravity)
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#Update velocity
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self.vel = 0.95*self.vel+0.01*random()*(gravity-self.pos)+0.1*random()*Vector( randint(-70,70) for i in range(2) )
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#Limit speed
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l = self.vel.length()
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self.vel *= max_v/l
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def updatePos(self):
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self.pos = self.pos + self.vel
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def draw(self,screen):
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w,h = 1280,800
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if self.pos[0] > 0 and self.pos[0] < w and self.pos[1] > 0 and self.pos[1] < h:
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pos = tuple(map(int,self.pos))
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velpos = tuple(map(int,self.pos+self.vel))
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pygame.draw.circle(screen, self.color, pos, 5)
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pygame.draw.line(screen, (255,255,255), pos, velpos, 1 )
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@staticmethod
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def generate(xmax,ymax):
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return Particle( tuple( randint(100,255) for i in range(3) ), ( randint(0,xmax), randint(0,ymax) ), tuple( randint(-50,50) for i in range(2) ) )
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class SwarmMode(Mode):
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swarmsize = 60
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def __init__(self,screensize):
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Mode.__init__(self,screensize)
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self.particles = list( Particle.generate(1280,800) for i in range(self.swarmsize) )
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self.generateGravity()
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self.gtick = Tick(150)
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self.utick = Tick(2)
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def generateGravity(self):
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#self.gravity = tuple( randint(0,m) for m in [1280,800] )
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self.gravity = Vector( (1280,800) )/2
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def update(self):
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if self.gtick.tick():
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self.generateGravity()
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v = self.utick.tick()
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#king = self.particles[0]
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#if v: king.updateVel(self.gravity, max_v=3)
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#king.updatePos()
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for p in self.particles:
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if v: p.updateVel(self.gravity)
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p.updatePos()
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def draw(self,screen):
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screen.fill( (0,0,0) )
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for p in self.particles:
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p.draw(screen)
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class Game(object):
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def __init__(self, modes=[SwarmMode,TransitionMode,LelMode,BallMode]):
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self.modes = modes
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pygame.init()
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self.screen = pygame.display.set_mode( (1280,800), pygame.HWSURFACE )
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pygame.mouse.set_visible(False)
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self.setmode(0)
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self.running = True
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def update(self):
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self.mode.update()
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def setmode(self,i):
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self.modeindex = i
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self.mode = self.modes[i%len(self.modes)](self.screen.get_size())
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def nextmode(self):
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self.setmode( self.modeindex+1 )
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def draw(self):
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self.mode.draw(self.screen)
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pygame.display.flip()
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def getevents(self):
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for event in pygame.event.get():
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if event.type == QUIT:
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self.running = False
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elif event.type == KEYDOWN:
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if event.key == K_ESCAPE:
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pygame.event.post(pygame.event.Event(QUIT))
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elif event.key == K_SPACE:
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self.nextmode()
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def run(self):
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clock = pygame.time.Clock()
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while self.running:
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clock.tick(30)
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self.getevents()
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self.update()
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self.draw()
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if __name__ == '__main__':
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Game().run()
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