#
# Simple animation demo
#
#			Zvika Zilberman and Haggay Dagan
#

save_mat = view_mat;
save_res = resolution;

view_mat = view_mat * sc( 0.1 );
viewobj( view_mat );

a = sphere( vector(  0.99, 0, 0 ), 1.0 );
b = sphere( vector( -0.99, 0, 0 ), 1.0 );

pt0 =  ctlpt( e3,  0.0,  0.0, 0.0 );
pt1 =  ctlpt( e3,  1.0,  1.0, 0.0 );
pt2 =  ctlpt( e3,  2.0,  2.0, 0.0 );
pt4 =  ctlpt( e3,  4.0,  4.0, 0.0 );
pt5 =  ctlpt( e3, -1.0, -1.0, 0.0 );
pt6 =  ctlpt( e3, -2.0, -2.0, 0.0 );
pt7 =  ctlpt( e3, -4.0, -4.0, 0.0 );
pt8 =  ctlpt( e3,  0.4,  0.4, 0.0 );
pt9 =  ctlpt( e3,  2.0,  2.0, 0.0 );
pt11 = ctlpt( e2,  3.0,  3.0 );
pt12 = ctlpt( e2, -3.0, -3.0 );
pt13 = ctlpt( e2,  1.5,  1.5 );
pt14 = ctlpt( e2, -1.5, -1.5 );
pt15 = ctlpt( e2,  3.6,  3.6 );
pt16 = ctlpt( e2, -0.9, -0.9 );
pt17 = ctlpt( e2, -3.6, -3.6 );
pt18 = ctlpt( e2,  0.9,  0.9 );

mov_x   = creparam( cbezier( list( pt0, pt1, pt2, pt4, pt2, pt1, pt0 ) ),
                    0.0, 2.0 );
scl_x   = creparam( cbezier( list( pt1, pt8, pt1 ) ), 2.0, 3.0 );
scl_y   = creparam( cbezier( list( pt1, pt9, pt1 ) ), 2.0, 3.0 );
visible = creparam( cbezier( list( pt11, pt14 ) ), 0.0, 4.5 );
attrib( a, "animation", list( visible, mov_x, scl_x, scl_y ) );
color( a, magenta );

free( mov_x );
free( scl_x );

mov_x = creparam( cbezier( list( pt0, pt5, pt6, pt7, pt6, pt5, pt0 ) ),
                  0.0, 2.0 );
scl_x = creparam( cbezier( list( pt1, pt8, pt1 ) ), 2.0, 3.0 );
attrib( b, "animation", list( visible, mov_x, scl_x, scl_y ) );
color( b, magenta );

ball = list( a, b );

free( mov_x );
free( scl_x );
free( scl_y );
free( visible );
free( a );
free( b );

a = sphere( vector(  0.99, 0, 0 ), 1.0 );
b = sphere( vector( -0.99, 0, 0 ), 1.0 );

mov_x = creparam( cbezier( list( pt0, pt1, pt2, pt1, pt0 ) ), 3.0, 4.5 );
visible = creparam( cbezier( list( pt12, pt13 ) ), 0.0, 4.5 );
attrib( a, "animation", list( visible, mov_x ) );
color( a, magenta );

free( mov_x );

mov_x = creparam( cbezier( list( pt0, pt5, pt6, pt5, pt0 ) ), 3.0, 4.5 );
attrib( b, "animation", list( visible, mov_x ) );
color( b, magenta );

balla = list( a, b );

free( mov_x );
free( visible );
free( a );
free( b );

a = sphere( vector(  0.99, 2.5, 0 ), 1.0 );
b = sphere( vector( -0.99, 2.5, 0 ), 1.0 );
mov_x = creparam( cbezier( list( pt0, pt1, pt2, pt4, pt2, pt1, pt0 ) ), 0.6, 2.6 );
scl_x = creparam( cbezier( list( pt1, pt8, pt1 ) ), 2.6, 3.6 );
scl_y = creparam( cbezier( list( pt1, pt9, pt1 ) ), 2.6, 3.6 );
visible = creparam( cbezier( list( pt15, pt16 ) ), 0.0, 4.5 );
attrib( a, "animation", list( mov_x, scl_x, scl_y, visible ) );
color( a, blue );

free( mov_x );
free( scl_x );

mov_x = creparam( cbezier( list( pt0, pt5, pt6, pt7, pt6, pt5, pt0 ) ), 0.6, 2.6 );
scl_x = creparam( cbezier( list( pt1, pt8, pt1 ) ), 2.6, 3.6 );
attrib( b, "animation", list( mov_x, scl_x, scl_y, visible ) );
color( b, blue );

ball1 = list( a, b );

free( mov_x );
free( scl_x );
free( scl_y );
free( visible );
free( a );
free( b );

a = sphere( vector(  0.99, 2.5, 0 ), 1.0 );
b = sphere( vector( -0.99, 2.5, 0 ), 1.0 );
mov_x = creparam( cbezier( list( pt0, pt1, pt2, pt1, pt0 ) ), 0.6, 2.6 );
visible = creparam( cbezier( list( pt17, pt18 ) ), 0.0, 4.5 );
attrib( a, "animation", list( mov_x, visible ) );
color( a, blue );

free( mov_x );

mov_x = creparam( cbezier( list( pt0, pt5, pt6, pt5, pt0 ) ), 0.6, 2.6 );
attrib( b, "animation", list( mov_x, visible ) );
color( b, blue );

ball1a = list( a, b );

free( mov_x );
free( visible );
free( a );
free( b );


a = sphere( vector(  0.99, -2.5, 0 ), 1.0 );
b = sphere( vector( -0.99, -2.5, 0 ), 1.0 );
mov_x = creparam( cbezier( list( pt0, pt1, pt2, pt4, pt2, pt1, pt0 ) ), 0.6, 2.6 );
scl_x = creparam( cbezier( list( pt1, pt8, pt1 ) ), 2.6, 3.6 );
scl_y = creparam( cbezier( list( pt1, pt9, pt1 ) ), 2.6, 3.6 );
attrib( a, "animation", list( mov_x, scl_x, scl_y ) );
color( a, red );

free( mov_x );
free( scl_x );

mov_x = creparam( cbezier( list( pt0, pt5, pt6, pt7, pt6, pt5, pt0 ) ), 0.6, 2.6 );
scl_x = creparam( cbezier( list( pt1, pt8, pt1 ) ), 2.6, 3.6 );
attrib( b, "animation", list( mov_x, scl_x, scl_y ) );
color( b, red );

ball2 = list( a, b );

free( mov_x );
free( scl_x );
free( scl_y );
free( a );
free( b );


a = sphere( vector( 0.99, 5.0, 0 ), 1.0 );
b = sphere( vector( -0.99, 5.0, 0 ), 1.0 );
mov_x = creparam( cbezier( list( pt0, pt1, pt2, pt4, pt2, pt1, pt0 ) ), 1.5, 3.5 );
scl_x = creparam( cbezier( list( pt1, pt8, pt1 ) ), 3.5, 4.5 );
scl_y = creparam( cbezier( list( pt1, pt9, pt1 ) ), 3.5, 4.5 );
attrib( a, "animation", list( mov_x, scl_x, scl_y ) );
color( a, yellow );

free( mov_x );
free( scl_x );

mov_x = creparam( cbezier( list( pt0, pt5, pt6, pt7, pt6, pt5, pt0 ) ), 1.5, 3.5 );
scl_x = creparam( cbezier( list( pt1, pt8, pt1 ) ), 3.5, 4.5 );
attrib( b, "animation", list( mov_x, scl_x, scl_y ) );
color( b, yellow );

ball3 = list( a, b );

free( mov_x );
free( scl_x );
free( scl_y );
free( a );
free( b );

a = sphere( vector(  0.99, -5.0, 0 ), 1.0 );
b = sphere( vector( -0.99, -5.0, 0 ), 1.0 );
mov_x = creparam( cbezier( list( pt0, pt1, pt2, pt4, pt2, pt1, pt0 ) ), 1.5, 3.5 );
scl_x = creparam( cbezier( list( pt1, pt8, pt1 ) ), 3.5, 4.5 );
scl_y = creparam( cbezier( list( pt1, pt9, pt1 ) ), 3.5, 4.5 );
attrib( a, "animation", list( mov_x, scl_x, scl_y ) );
color( a, green );

free( mov_x );
free( scl_x );

mov_x = creparam( cbezier( list( pt0, pt5, pt6, pt7, pt6, pt5, pt0 ) ), 1.5, 3.5 );
scl_x = creparam( cbezier( list( pt1, pt8, pt1 ) ), 3.5, 4.5 );
attrib( b, "animation", list( mov_x, scl_x, scl_y ) );
color( b, green );

ball4 = list( a, b );

free( mov_x );
free( scl_x );
free( scl_y );
free( a );
free( b );

demo = list( ball, balla, ball1, ball1a, ball2, ball3, ball4 );
attrib( demo, "refract", 1.4 );
attrib( demo, "specpow", 1.5 );

interact( demo );
viewanim( 0, 4.5, 0.05 );

save( "animball", demo );

free( ball );
free( ball1 );
free( ball1a );
free( balla );
free( ball2 );
free( ball3 );
free( ball4 );
free( demo );

free( pt0 );
free( pt1 );
free( pt2 );
free( pt4 );
free( pt5 );
free( pt6 );
free( pt7 );
free( pt8 );
free( pt9 );
free( pt11 );
free( pt12 );
free( pt13 );
free( pt14 );
free( pt15 );
free( pt16 );
free( pt17 );
free( pt18 );

resolution = save_res;
view_mat = save_mat;