一、效果图
二、Python代码
import random
from math import sin, cos, pi, log
from tkinter import *
CANVAS_WIDTH = 640
CANVAS_HEIGHT = 480
CANVAS_CENTER_X = CANVAS_WIDTH / 2
CANVAS_CENTER_Y = CANVAS_HEIGHT / 2
IMAGE_ENLARGE = 11
HEART_COLOR = "pink"
import random
from math import sin, cos, pi, log
from tkinter import *
CANVAS_WIDTH = 640
CANVAS_HEIGHT = 480
CANVAS_CENTER_X = CANVAS_WIDTH / 2
CANVAS_CENTER_Y = CANVAS_HEIGHT / 2
IMAGE_ENLARGE = 11
HEART_COLOR = "pink"
def heart_function ( t, shrink_ratio: float = IMAGE_ENLARGE) :
x = 16 * ( sin( t) ** 3 )
y = - ( 13 * cos( t) - 5 * cos( 2 * t) - 2 * cos( 3 * t) - cos( 4 * t) )
x *= shrink_ratio
y *= shrink_ratio
x += CANVAS_CENTER_X
y += CANVAS_CENTER_Y
return int ( x) , int ( y)
def scatter_inside ( x, y, beta= 0.15 ) :
ratio_x = - beta * log( random. random( ) )
ratio_y = - beta * log( random. random( ) )
dx = ratio_x * ( x - CANVAS_CENTER_X)
dy = ratio_y * ( y - CANVAS_CENTER_Y)
return x - dx, y - dy
def shrink ( x, y, ratio) :
force = - 1 / ( ( ( x - CANVAS_CENTER_X) ** 2 + ( y - CANVAS_CENTER_Y) ** 2 ) **
0.6 )
dx = ratio * force * ( x - CANVAS_CENTER_X)
dy = ratio * force * ( y - CANVAS_CENTER_Y)
return x - dx, y - dy
def curve ( p) :
return 4 * ( 2 * sin( 4 * p) ) / ( 2 * pi)
class Heart :
def __init__ ( self, generate_frame= 20 ) :
self. _points = set ( )
self. _edge_diffusion_points = set ( )
self. _center_diffusion_points = set ( )
self. all_points = { }
self. build( 2000 )
self. random_halo = 1000
self. generate_frame = generate_frame
for frame in range ( generate_frame) :
self. calc( frame)
def build ( self, number) :
for _ in range ( number) :
t = random. uniform( 0 , 2 * pi)
x, y = heart_function( t)
self. _points. add( ( x, y) )
for _x, _y in list ( self. _points) :
for _ in range ( 3 ) :
x, y = scatter_inside( _x, _y, 0.05 )
self. _edge_diffusion_points. add( ( x, y) )
point_list = list ( self. _points)
for _ in range ( 4000 ) :
x, y = random. choice( point_list)
x, y = scatter_inside( x, y, 0.17 )
self. _center_diffusion_points. add( ( x, y) )
@staticmethod
def calc_position ( x, y, ratio) :
force = 1 / ( ( ( x - CANVAS_CENTER_X) ** 2 +
( y - CANVAS_CENTER_Y) ** 2 ) ** 0.520 )
dx = ratio * force * ( x - CANVAS_CENTER_X) + random. randint( - 1 , 1 )
dy = ratio * force * ( y - CANVAS_CENTER_Y) + random. randint( - 1 , 1 )
return x - dx, y - dy
def calc ( self, generate_frame) :
ratio = 10 * curve( generate_frame / 10 * pi)
halo_radius = int ( 4 + 6 * ( 1 + curve( generate_frame / 10 * pi) ) )
halo_number = int (
3000 + 4000 * abs ( curve( generate_frame / 10 * pi) ** 2 ) )
all_points = [ ]
heart_halo_point = set ( )
for _ in range ( halo_number) :
t = random. uniform( 0 , 2 * pi)
x, y = heart_function( t, shrink_ratio= 11 )
x, y = shrink( x, y, halo_radius)
if ( x, y) not in heart_halo_point:
heart_halo_point. add( ( x, y) )
x += random. randint( - 11 , 11 )
y += random. randint( - 11 , 11 )
size = random. choice( ( 1 , 2 , 2 ) )
all_points. append( ( x, y, size) )
for x, y in self. _points:
x, y = self. calc_position( x, y, ratio)
size = random. randint( 1 , 3 )
all_points. append( ( x, y, size) )
for x, y in self. _center_diffusion_points:
x, y = self. calc_position( x, y, ratio)
size = random. randint( 1 , 2 )
all_points. append( ( x, y, size) )
self. all_points[ generate_frame] = all_points
def render ( self, render_canvas, render_frame) :
for x, y, size in self. all_points[ render_frame % self. generate_frame] :
render_canvas. create_rectangle(
x, y, x + size, y + size, width= 0 , fill= HEART_COLOR)
def draw ( main: Tk, render_canvas: Canvas, render_heart: Heart, render_frame= 0 ) :
render_canvas. delete( 'all' )
render_heart. render( render_canvas, render_frame)
main. after( 160 , draw, main, render_canvas, render_heart, render_frame + 1 )
if __name__ == '__main__' :
root = Tk( )
canvas = Canvas( root, bg= 'black' , height= CANVAS_HEIGHT, width= CANVAS_WIDTH)
canvas. pack( )
heart = Heart( )
draw( root, canvas, heart)
root. mainloop( )