# William T. Verts - Lab #2 - Greebles / Anime Eyes 

#--------------------------------------------------------------
# Helper function to round coordinates to the nearest pixel.
#--------------------------------------------------------------

def INT(N):
    return int(round(N))

#--------------------------------------------------------------
# These functions paint ellipses or filled ellipses at center
# <Xc,Yc> with X-radius Xr and Y-radius Yr and color NewColor,
# as well as filled circles of radius R.
# Xc, Yc, Xr, Yr, and R may all be floats.
#--------------------------------------------------------------
 
def addEllipse (Canvas,Xc,Yc,Xr,Yr,NewColor=black):


    return
    
#--------------------------------------------------------------

def addEllipseFilled (Canvas,Xc,Yc,Xr,Yr,NewColor=black):


    return

#--------------------------------------------------------------

def addCircleFilled (Canvas,Xc,Yc,R,NewColor=black): 


    return
    
#--------------------------------------------------------------
# This function paints a bunch of lines radially around <Xc,Yc>
# where R1 and R2 are the inner and outer radii and Segments
# indicates the number of lines.
#--------------------------------------------------------------

def addStarburst (Canvas,Xc,Yc,R1,R2,Segments):  


    return
    
#--------------------------------------------------------------
# This function paints ONE anime eyeball on the Canvas,
# centered at <Xc,Yc>.  The color of the iris is NewColor, the
# pupil is black, and the highlights are white.  The sizes and
# positions of the iris, pupil, and highlights are derived
# from center point <Xc,Yc> and the radius of the iris R.
#--------------------------------------------------------------

def addEyeball (Canvas,Xc,Yc,R,NewColor):


    return

#--------------------------------------------------------------
# This function paints a Greeble on the Canvas at center
# <Xc,Yc> with Xradius indicating the size of the Greeble
# (everything else is computed from those three values).
# The Greeble has ellipses for the body and mouth, and calls
# addEyeball TWICE (once for each eye).
#--------------------------------------------------------------

def addGreeble (Canvas,Xc,Yc,Xradius,NewColor):


    return

#--------------------------------------------------------------
# This function computed the optimal X radius for the Greeble
# based on the size of the Canvas, then plots the Greeble at
# the center of the screen with that X radius.
#--------------------------------------------------------------
    
def Stare (Canvas,NewColor):


    return

#--------------------------------------------------------------
# Prompt the user for a color.  You MAY NOT change ANY code
# in the requestColor function!
#--------------------------------------------------------------

def requestColor (Message):
    while True:
        S = requestString(Message)
        S = S.lower()
        if (S == "red"):     return red
        if (S == "green"):   return green
        if (S == "blue"):    return blue
        if (S == "cyan"):    return cyan
        if (S == "magenta"): return magenta
        if (S == "yellow"):  return yellow
    
#--------------------------------------------------------------
# This function establishes the size of the canvas and the
# color of the eyes.  You MAY NOT change ANY code in
# the Main function!
#--------------------------------------------------------------

def Main ():
    W = requestIntegerInRange("Enter Width", 100, 1000)
    H = requestIntegerInRange("Enter Height", 100, 1000)
    C = requestColor("Enter a Color")
    Canvas = makeEmptyPicture(W,H,makeColor(240))
    Stare(Canvas,C)
    show(Canvas)
    return

#--------------------------------------------------------------
# Test programs to exercise the various functions as they are
# being developed.
#--------------------------------------------------------------

def TestEllipse ():
    Canvas = makeEmptyPicture(400,400)
    addEllipse(Canvas,getWidth(Canvas)/2,getHeight(Canvas)/2,150,50,blue)
    show(Canvas)
    return

def TestEllipseFilled ():
    Canvas = makeEmptyPicture(400,400)
    addEllipseFilled(Canvas,getWidth(Canvas)/2,getHeight(Canvas)/2,150,50,blue)
    show(Canvas)
    return
    
def TestCircleFilled ():
    Canvas = makeEmptyPicture(400,400)
    addCircleFilled(Canvas,getWidth(Canvas)/2,getHeight(Canvas)/2,150,blue)
    show(Canvas)
    return
    
def TestStarburst ():
    Canvas = makeEmptyPicture(400,400)
    addStarburst(Canvas,getWidth(Canvas)/2,getHeight(Canvas)/2,150,100,40)
    show(Canvas)
    return

def TestEyeball ():
    Canvas = makeEmptyPicture(400,400)
    addEyeball(Canvas,getWidth(Canvas)/2,getHeight(Canvas)/2,150,blue)
    show(Canvas)
    return