User Prompt
a giant manta ray gliding over a coral reef: wide diamond wing-body with cephalic fins, long tail, dark top with white belly, coral heads and kelp below
// naive manta ray
fill(0,0,0,40,0,50,"sand");
var x, z;
for (x = 5; x <= 35; x++) { for (z = 8; z <= 30; z++) {
var dx = (x - 20) / 15, dz = (z - 19) / 11;
if (dx * dx + dz * dz <= 1) { pb(x, 12, z, "black_concrete"); pb(x, 11, z, "white_concrete"); }
} }
for (z = 31; z <= 45; z++) { pb(20, 12, z, "black_concrete"); }
pb(18, 12, 6, "black_concrete"); pb(22, 12, 6, "black_concrete");
fill(5,1,5,8,3,8,"red_concrete"); fill(28,1,35,31,2,38,"orange_concrete");