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import gtk
from math import sin,cos,pi
colors = {}
buffer = None
gc = None
window = None
width = 0
height = 0
sprite = None
cm = None
bgcolor = None
fgcolor = None
color = 0
shade = 50
pensize = 5
pendown = True
turtle = None
DEGTOR = 2*pi/360
xcor = 0
ycor = 0
heading = 0
color_table = (
0xFF0000,0xFF0D00,0xFF1A00,0xFF2600,0xFF3300,0xFF4000,0xFF4D00,0xFF5900,0xFF6600,0xFF7300,
0xFF8000,0xFF8C00,0xFF9900,0xFFA600,0xFFB300,0xFFBF00,0xFFCC00,0xFFD900,0xFFE600,0xFFF200,
0xFFFF00,0xE6FF00,0xCCFF00,0xB3FF00,0x99FF00,0x80FF00,0x66FF00,0x4DFF00,0x33FF00,0x1AFF00,
0x00FF00,0x00FF0D,0x00FF1A,0x00FF26,0x00FF33,0x00FF40,0x00FF4D,0x00FF59,0x00FF66,0x00FF73,
0x00FF80,0x00FF8C,0x00FF99,0x00FFA6,0x00FFB3,0x00FFBF,0x00FFCC,0x00FFD9,0x00FFE6,0x00FFF2,
0x00FFFF,0x00F2FF,0x00E6FF,0x00D9FF,0x00CCFF,0x00BFFF,0x00B3FF,0x00A6FF,0x0099FF,0x008CFF,
0x0080FF,0x0073FF,0x0066FF,0x0059FF,0x004DFF,0x0040FF,0x0033FF,0x0026FF,0x001AFF,0x000DFF,
0x0000FF,0x0D00FF,0x1A00FF,0x2600FF,0x3300FF,0x4000FF,0x4D00FF,0x5900FF,0x6600FF,0x7300FF,
0x8000FF,0x8C00FF,0x9900FF,0xA600FF,0xB300FF,0xBF00FF,0xCC00FF,0xD900FF,0xE600FF,0xF200FF,
0xFF00FF,0xFF00E6,0xFF00CC,0xFF00B3,0xFF0099,0xFF0080,0xFF0066,0xFF004D,0xFF0033,0xFF001A)
def init(win, spr, tspr, bg):
global buffer, gc, window, sprite, width, height, bgcolor, fgcolor, cm, turtle
window, sprite, buffer, turtle, bgcolor = win.window, spr, spr.image, tspr, bg
width, height = buffer.get_size()
gc = win.window.new_gc()
cm = gc.get_colormap()
gc = buffer.new_gc()
clearscreen()
def clearscreen():
global xcor,ycor,heading, pendown
xcor, ycor, heading = 0,0,0
rect = gtk.gdk.Rectangle(0,0,width,height)
gc.set_foreground(bgcolor)
buffer.draw_rectangle(gc, True, *rect)
inval(0,0,width,height)
setpensize(5)
setcolor(0)
setshade(50)
pendown = True
move_turtle()
turn_turtle()
return None
def forward(n):
global xcor,ycor
gc.set_foreground(fgcolor)
oldx, oldy = xcor, ycor
xcor += n*sin(heading*DEGTOR)
ycor += n*cos(heading*DEGTOR)
if pendown: draw_line(oldx,oldy,xcor,ycor)
move_turtle()
return None
def seth(n):
global heading
heading=n
heading%=360
turn_turtle()
return None
def right(n):
global heading
heading+=n
heading%=360
turn_turtle()
return None
def arc(a,r):
gc.set_foreground(fgcolor)
if a<0: larc(-a,r)
else: rarc(a,r)
move_turtle()
turn_turtle()
def rarc(a,r):
global xcor,ycor
if r<0: r=-r; a=-a
cx = xcor+r*cos(heading*DEGTOR)
cy = ycor-r*sin(heading*DEGTOR)
x,y,w,h=width/2+int(cx-r),height/2-int(cy+r),int(2*r),int(2*r)
buffer.draw_arc(gc,False,x,y,w,h,int(180-heading-a)*64,int(a)*64)
inval(x-pensize/2-3,y-pensize/2-3,w+pensize+6,h+pensize+6)
right(a)
xcor=cx-r*cos(heading*DEGTOR)
ycor=cy+r*sin(heading*DEGTOR)
def larc(a,r):
global xcor,ycor
if r<0: r=-r; a=-a
cx = xcor-r*cos(heading*DEGTOR)
cy = ycor+r*sin(heading*DEGTOR)
x,y,w,h=width/2+int(cx-r),height/2-int(cy+r),int(2*r),int(2*r)
buffer.draw_arc(gc,False,x,y,w,h,int(360-heading)*64,int(a)*64)
inval(x-pensize/2-3,y-pensize/2-3,w+pensize+6,h+pensize+6)
right(-a)
xcor=cx+r*cos(heading*DEGTOR)
ycor=cy-r*sin(heading*DEGTOR)
def setxy(x,y):
global xcor,ycor
xcor,ycor = x,y
move_turtle()
def setpensize(ps):
global pensize
pensize = ps
gc.set_line_attributes(int(pensize),gtk.gdk.LINE_SOLID,gtk.gdk.CAP_ROUND,gtk.gdk.JOIN_MITER)
return None
def setcolor(c):
global color
color = c
set_fgcolor()
return None
def setshade(s):
global shade
shade = s
set_fgcolor()
return None
def fillscreen(c,s):
oldc, olds = color,shade
setcolor(c); setshade(s)
rect = gtk.gdk.Rectangle(0,0,width,height)
gc.set_foreground(fgcolor)
buffer.draw_rectangle(gc, True, *rect)
inval(0,0,width,height)
setcolor(oldc); setshade(olds)
return None
def set_fgcolor():
global fgcolor
sh = (wrap100(shade)-50)/50.0
rgb = color_table[wrap100(color)]
r,g,b = (rgb>>8)&0xff00,rgb&0xff00,(rgb<<8)&0xff00
r,g,b = calc_shade(r,sh),calc_shade(g,sh),calc_shade(b,sh)
fgcolor = cm.alloc_color(r,g,b)
def wrap100(n):
n = int(n)
n %= 200
if n>99: n=199-n
return n
def calc_shade(c,s):
if s<0: return int(c*(1+s*.8))
return int(c+(65536-c)*s*.9)
def setpen(bool):
global pendown
pendown = bool
def draw_line(x1,y1,x2,y2):
x1,y1 = width/2+int(x1), height/2-int(y1)
x2,y2 = width/2+int(x2), height/2-int(y2)
if x1<x2: minx,maxx=x1,x2
else: minx,maxx=x2,x1
if y1<y2: miny,maxy=y1,y2
else: miny,maxy=y2,y1
w,h=maxx-minx,maxy-miny
buffer.draw_line(gc,x1,y1,x2,y2)
inval(minx-pensize/2-3,miny-pensize/2-3,w+pensize+6,h+pensize+6)
def turn_turtle():
turtle.setshape(shapelist[(int(heading+5)%360)/10])
def move_turtle():
x,y = width/2+int(xcor), height/2-int(ycor)
turtle.move((sprite.x+x-30,sprite.y+y-30))
inval(x-30,y-30,60,60)
def inval(x,y,w,h):
rect = gtk.gdk.Rectangle(int(x+sprite.x),int(y+sprite.y),int(w),int(h))
window.invalidate_rect(rect, False)
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