How about bash? :p

r() { read -n1 -r c; [ "$c" = "$1" ]; }; b=2; stty -echo -icanon; printf '\033[H\033[0m\033[J\033[?1003h'; while true; do r $'\033' || { printf '%s\n' "$c" | grep -qE '[0-7]' && b=$c; continue; }; r \[ || continue; r "M" || continue; r "@" && d=y || d=; read z x y z < <(head -c 2 | hexdump -C); [ $d ] || continue; printf '\033[%d;%dH\033[1;4%dm \033[0m\033[D' $((0x${y}-32)) $((0x${x}-32)) $b; done

(you can change colour with digits 1..7 btw!)