[Tricxta]

I manipulate tiles using the hex numbers instead
so I usually do this.ctiles = {0xFFF,0xAE9};

then
for (i = 0; i < 4096; i++){
if (tiles[i%64,int(i/64)] == this.ctiles[0])
tiles[i%64,int(i/64)] = this.ctiles[1];
}
updateboard(0,0,64,64);

Hope this clarifies things for you