Python Forum

All done with four Gimp scripts (all in Python of course)

Would you like to share the scripts? Python is heavily used in almost all the graphics programs but I never wrote something

All there: Ofnuts' Gimp path tools downloads (but using them requires some Gimp skills).

• The first four waves where created by path-waves
  
• Intermediate lines are interpolated with path-inbetweener
  
• "PYTHON..." is laid out over each line with ofn-text-along-path (which is the thing I've been working on in the last couple of weeks)
  
• the animation frames are then rendered with stroke-or-fill-visible-paths
  

Added two new tricks to my bag with ofn-text-along-path:

• Using context managers
  
• Making a "factory" (of context managers...) which is incredibly simpler in Python than in Java
  

That's cool and inspired me to do the same basic thing in pygame (python 2.7). The next step would be to make a second "animation" that is really just flat and stationary, then "blend" both animations weighted more toward the stationary one on the endcaps (so the head/tail are more still like yours, I also just used blocks not letters, but they rotate to stay in line with snake body as well).

import pygame,random,time,math

class Spot(object):
    def __init__(ss,x,y,ang,leti):
        ss.x=x
        ss.y=y
        ss.ang=ang
        ss.leti=leti

def makesnake(startang,rot,rad,wordreps,w,h):
    step=w/(wordreps*6.0)
    nsteps=wordreps*6
    spots=[]
    ang=startang
    x=0
    leti=0
    for i in range(nsteps):
        y=(h/2)+(math.sin(math.radians(ang))*rad)
        s=Spot(x,y,None,leti)
        spots.append(s)
        x+=step
        ang=(ang+rot)%360
        leti=(leti+1)%6
    return spots

def makesnakeanim(ang,angstep,rot,rotstep,rotmax,rotmin,rad,radstep,radmax,radmin,wordreps,w,h,frames):
    snakeanim=[]
    for i in range(frames):
        spots=makesnake(ang,rot,rad,wordreps,w,h)
        setspotangs(spots)
        snakeanim.append(spots)
        ang+=angstep
        rot+=rotstep
        if rot>rotmax or rot<rotmin:
            rotstep*=-1
            rot+=rotstep*2
        rad+=radstep
        if rad>radmax or rad<radmin:
            radstep*=-1
            rad+=radstep*2
    return snakeanim

def drawsnake(spots):
    for s in spots:
        roted=pygame.transform.rotate(letrs[s.leti],s.ang)
        screen.blit(roted,(s.x,s.y))

def setspotangs(spots):
    for i in range(len(spots)-1):
        x1=spots[i].x
        y1=spots[i].y
        x2=spots[i+1].x
        y2=spots[i+1].y
        spots[i].ang=math.atan2(y2-y1,x2-x1)*-180.0/math.pi
    x1=spots[-1].x
    y1=spots[-1].y
    x2=spots[-2].x
    y2=spots[-2].y
    spots[-1].ang=math.atan2(y2-y1,x2-x1)*-180.0/math.pi
    #spots[-1].ang=0

letrs=[]
for i in range(6):
    s=pygame.Surface((12,12))
    s.set_colorkey((1,1,1))
    s.fill((random.randint(0,255),random.randint(0,255),random.randint(0,255)))
    letrs.append(s)

sw=512
sh=512
screen=pygame.display.set_mode((sw,sh))

#startang=0
#rot=10
#rad=5

#anim1=makesnakeanim(0,8,5,1,20,1,32,3,96,16,6,512,512,100)
ang=0
angstep=8
rot=20
rotstep=1
rotmax=40
rotmin=10
rad=32
radstep=8
radmax=64
radmin=16
wordreps=6
w=512
h=512
frames=500
anim1=makesnakeanim(ang,angstep,rot,rotstep,rotmax,rotmin,rad,radstep,radmax,radmin,wordreps,w,h,frames)

cc=0
running=True
while running:
    for e in pygame.event.get():
        if e.type==pygame.QUIT:
            running=False

    screen.fill((255,255,255))
    #spots=makesnake(startang,rot,rad,6,512,512)
    #setspotangs(spots)
    #drawsnake(spots)
    drawsnake(anim1[cc])
    
    pygame.display.flip()
    time.sleep(0.1)

    #startang+=4
    #rad+=0.1
    cc=(cc+1)%len(anim1)
pygame.quit()