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# my_turtle.py
import g,pygame,utils
class TurtleClass: # used only for keeping track of the right hand turtle
def setup(self, color):
steps=0
for n in self.current: steps=steps+4*n
self.steps=steps
self.x1=g.x1+4.0*g.dd; self.y1=g.y1+6.0*g.dd; self.dx=0; self.dy=-g.dd
self.step_count=0
self.ms=pygame.time.get_ticks()
self.running=False; self.crashed=False; self.changed=False
self.win=False
self.color=color
def move(self):
if self.step_count<self.steps:
d=pygame.time.get_ticks()-self.ms
if d<0 or d>g.delay: #time to move
g.redraw=True
x2=self.x1+self.dx; y2=self.y1+self.dy
self.x1=x2; self.y1=y2
self.step_count+=1
self.ms=pygame.time.get_ticks()
else:
self.running=False
def help1(self):
x1=g.x1+4*g.dd; y1=g.y1+6*g.dd; dx=0; dy=-g.dd; steps=0; angle=0; n=0
for j in self.current:
for k in range(j):
steps+=1
x2=x1+dx; y2=y1+dy
pygame.draw.line(g.screen,self.color,(x1,y1),(x2,y2),4)
x1=x2; y1=y2
if dy==-g.dd: dx=g.dd;dy=0;angle=90
elif dx==g.dd: dx=0;dy=g.dd;angle=180
elif dy==g.dd: dx=-g.dd;dy=0;angle=270
else: dx=0;dy=-g.dd;angle=0
n+=1
if n==g.help1: break
utils.centre_blit(g.screen,g.turtle,(x2,y2),angle)
self.step_count=steps
def draw(self):
x1=g.x1+4*g.dd; y1=g.y1+6*g.dd; dx=0; dy=-g.dd; steps=0; angle=0
x2=x1; y2=y1 # in case we haven't moved yet - for turtle image
done=True; n=0
for i in range(4):
for j in self.current:
for k in range(j):
steps+=1
if not g.show_help:
if steps>self.step_count: done=False; break
x2=x1+dx; y2=y1+dy
pygame.draw.line(g.screen,self.color,(x1,y1),(x2,y2),4)
x1=x2; y1=y2
if not g.show_help:
if steps>self.step_count: break
if dy==-g.dd: dx=g.dd;dy=0;angle=90
elif dx==g.dd: dx=0;dy=g.dd;angle=180
elif dy==g.dd: dx=-g.dd;dy=0;angle=270
else: dx=0;dy=-g.dd;angle=0
if g.show_help:
n+=1
if n==g.help1: self.step_count=steps; break
if g.show_help:
if n==g.help1: break
elif steps>self.step_count: break
img=g.turtle
if self.crashed: img=g.crash
utils.centre_blit(g.screen,img,(x2,y2),angle)
d8=8*g.dd
if not g.show_help:
if abs(x2-g.x1)<.1 or abs(x2-(g.x1+d8))<.1 or abs(y2-g.y1)<.1 or abs(y2-(g.y1+d8))<.1:
if not self.crashed==True: g.crash_drawn=False
self.running=False; self.crashed=True
elif done:
self.win=correct(self.current)
if self.win:
if g.finale==False:
if g.help2>5: g.help2=5
g.score=g.score+6-g.help2
g.finale=True
def correct(current):
return trace(g.goal)==trace(current)
def trace(l): # returns a list based on the line segments drawn
hl=[0,0,0,0,0,0,0]; vl=[0,0,0,0,0,0,0]
x1=3;y1=1;dx=0;dy=1
for i in range(4):
for j in l:
for k in range(j):
x2=x1+dx; y2=y1+dy;mark(hl,vl,x1,y1,x2,y2); x1=x2; y1=y2
if dy==-1: dx=-1;dy=0
elif dx==1: dx=0;dy=-1
elif dy==1: dx=1;dy=0
else: dx=0;dy=1
return hl+vl
def mark(hl,vl,x1,y1,x2,y2):
twos=[1,2,4,8,16,32]
if x1==x2: #vertical
y=min(y1,y2);vl[x1]=vl[x1]|twos[y]
else:
x=min(x1,x2);hl[y1]=hl[y1]|twos[x]
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